JP5759054B1 - Magnet excitation rotating electrical machine system - Google Patents

Abstract

A magnet-excited rotating electrical machine with a wide rotational speed range is realized by phase control of an induced voltage. A rotor facing an armature is composed of three rotors having the same number of magnetic salient poles, and two rotors are displaced in the circumferential direction with respect to the other to control the induced voltage. In a rotating electrical machine system, a large induced voltage can be suppressed within a range where the magnetic coupling force between the rotors is small. Proposed is a vehicle driving force control method that uses a rotational driving force and a regenerative braking force to enable displacement control of a displacement rotor with a small force, and further has a rotating electrical machine system of the present invention as a driving source. [Selection] Figure 1

Description

  The present invention relates to a rotating electrical machine system including a generator and a motor having a permanent magnet field.

  A rotating electrical machine (IPM) in which a permanent magnet is embedded in a magnetic body in the vicinity of the rotor surface is widely used because it allows field weakening by phase control of drive current. However, copper loss is significant at low speed rotation, and at high speed rotation, a current that does not contribute directly to driving is required due to field weakening, resulting in lower energy efficiency and further rotation due to incomplete field weakening. The speed range cannot be expanded.

  Another way to achieve field weakening is to divide the rotor of permanent magnet excitation into two parts, displace one rotor relative to the other, and control the phase of the magnetic flux linked to the armature coil. There is a proposal for realizing a field weakening (Patent Documents 1, 2, 3, and 4). This method can realize a wide rotational speed range without sacrificing the high energy efficiency of magnet excitation. However, there is a problem that the magnetic coupling between the rotors becomes large (Patent Document 4), and a high-power actuator is required for displacement. In Patent Document 4, the rotor is divided into three parts to reduce the magnetic coupling force, but the result is that the range of rotation speed is narrowed and the structure and procedure related to displacement control are complicated.

  The inventor previously made three rotors having the same number of magnetic salient poles face the armature, and the two rotors were displaced relative to each other in the opposite directions in the circumferential direction to control the induced voltage. An electric system was proposed (Japanese Patent Application No. 2014-165617). According to the present invention, it is possible to suppress a large induced voltage within a range where the magnetic coupling force between the rotors is small, and the problem of the conventional structure can be solved. However, continuous induced voltage control within a wide range of rotational speed is possible. There has not always been a sufficient description of how to materialize.

US Patent 3713015 JP 10-155262 A JP 2002-165426 A JP 2010-154699 A

  Therefore, the problem to be solved by the present invention is that three rotors having the same number of magnetic salient poles are opposed to the armature, and the two rotors are relatively displaced relative to each other in the circumferential direction. An object of the present invention is to provide a rotating electrical machine system that enables continuous induced voltage control and a method for smoothly controlling the driving force of a vehicle.

  The invention of claim 1 has a housing, an armature in which a plurality of armature coils are arranged in the circumferential direction, and a rotor in which a plurality of magnetic salient poles are arranged in the circumferential direction. A rotating electrical machine apparatus configured to be opposed to a rotor in a radial direction through a minute gap and to be rotatable together with a rotating shaft, wherein the rotor includes three rotors having the same number of magnetic salient poles in an axial direction. The rotors at both ends of the shafts are magnetized, and the rotors at one shaft end are fixed to the rotating shaft as fixed rotors, and the intermediate rotor and the other shaft end side rotor are The displacement rotor is configured to be displaceable in the same circumferential direction with respect to the fixed rotor. When one of the two displacement rotors is displaced in the circumferential direction, the rotors at both shaft ends are displaced from the intermediate rotor. The three rotors are mechanically displaced relative to each other in the opposite circumferential direction. The rotor position control means, and when the induced voltage is greater than a predetermined value, the rotor position control means displaces the displacement rotor relative to the fixed rotor in the circumferential direction preceding the rotation direction. When the induced voltage is decreased by increasing the amount, and the induced voltage is smaller than a predetermined value, the rotor position control means reduces the amount of displacement to increase the induced voltage, and the rotational force is optimally controlled. It is characterized by things.

  The present invention relates to a rotating electrical machine apparatus in which an armature and a rotor face each other in the radial direction, and the rotor is composed of three rotors having the same number of magnetic salient poles and at least rotors at both shaft ends. Is magnet-excited, the rotor at one shaft end is fixed to the rotating shaft, and the other two rotors are configured as displacement rotors so that they can be displaced in the circumferential direction. This is a rotating electrical machine system that controls an induced voltage by displacing a displacement rotor so as to be displaced relative to each other in opposite circumferential directions.

  The magnetic salient pole refers to a section magnetized by a permanent magnet or a magnetic section magnetically formed into a convex pole shape by a non-magnetic body including air gaps at the periphery of the rotor facing the armature. In the case of a magnet excitation structure, the number of magnetic salient poles is determined by the number of sections in which adjacent sections are magnetized in opposite polarities.

  In the conventional structure in which one of two rotors having the same axial length is displaced with respect to the other, if the displacement between the two rotors is 2θ in electrical angle, the induced voltage appearing in the armature coil is Cosθ. Proportional. In the present invention, when the induced voltage amplitude from each of the rotors at both shaft ends is half of the induced voltage amplitude from the intermediate rotor, the relative displacement amount between the adjacent rotors in the axial direction is expressed as an electrical angle. Assuming 2θ, the induced voltage is proportional to the square of Cosθ.

  When the three rotors have the same magnet excitation configuration, the induced voltage amplitude becomes the maximum at the position where the magnetic salient poles of the same polarity of the three rotors are arranged in the axial direction. The induced voltage amplitude is controlled by relatively displacing the rotors at both shaft ends in opposite circumferential directions with respect to the intermediate rotor. In the conventional structure, the displacement 2θ is from 0 to 180 degrees in electrical angle. However, in the present invention, the circumferential interval range 2θ between the axially adjacent rotors is 0 to 180 degrees in electrical angle, and both ends rotate. The circumferential interval between the children is from zero to 360 degrees.

  By changing the axial length of each of the three rotors or making the magnetic pole structures of the three rotors different from each other, the displacement 2θ at which the induced voltage becomes zero changes, and the circumferential interval between the adjacent rotors changes. The range can be smaller than 180 degrees. The conditions for the induced voltage peak to become almost zero from the point at which it reaches the maximum are confirmed for each design specification, and the displacement range of the displacement rotor is determined.

  In high-speed rotation, the induced voltage is reduced by increasing the circumferential interval between adjacent rotors, ensuring a difference between the power supply voltage and the induced voltage, and further allowing a drive current to be supplied even at high-speed rotation. In low-speed rotation, the circumferential interval is reduced, the induced voltage is increased, the generated torque is increased, and the rotational force is optimized. A large induced voltage suppression ratio can be obtained in a region where the magnetic coupling force between adjacent rotors is small compared to the conventional structure, and the optimization of the rotational force is easy.

  The present invention further allows various magnetic pole configurations to be employed in the intermediate rotor. That is, in the conventional structure in which one of the two rotors is displaced with respect to the other, a magnetic phase having a leading phase and a lagging phase is applied to each of the two rotors during rotation driving, and thus a rotor structure having reluctance torque is difficult to employ. It was. In the present invention, since the rotor is driven to rotate by switching the polarity of the drive current based on the relative positional relationship between the armature coil and the intermediate rotor, there are few restrictions on the intermediate rotor and the reluctance torque is reduced. , Magnet torque, or a rotor structure having both of them can be used.

  Various methods can be used for the rotor position control means. For example, there are configurations using oblique grooves that change the displacement in the rotation axis direction to the circumferential displacement, a planetary gear mechanism, a hydraulic control mechanism, a clutch mechanism, and the like.

  According to a second aspect of the present invention, in the rotating electrical machine system according to the first aspect, the rotor is driven to rotate by switching the polarity of the drive current based on the relative positional relationship between the armature coil and the intermediate rotor. It is characterized by. The magnetic salient pole of the intermediate rotor is located at the same position as the combined magnetic pole of the entire rotor. To drive the rotor, the drive current is based on the relative positional relationship between the electric coil and the magnetic salient pole of the intermediate rotor. Switch polarity.

  According to a third aspect of the present invention, in the rotating electrical machine system according to the first aspect, a mechanical stopper is provided for limiting the displacement amount of the displacement rotor so that the induced voltage suppression ratio remains within a predetermined range. Features. When the displacement rotor is displaced in the circumferential direction relative to the fixed rotor, the circumferential interval 2θ between the adjacent rotors in the axial direction is theoretically 0 to 180 degrees in electrical angle, and between the rotors at both ends. The circumferential interval is from zero to 360 degrees. During rotational driving or regenerative braking, the direction of the rotational driving force and regenerative braking force applied to the intermediate rotor and the rotors at both ends may be reversed in the vicinity of the displacement limit, making control difficult. Therefore, a mechanical stopper is provided so that the displacement amount of the displacement rotor stays within a predetermined range of the induced voltage suppression ratio.

According to a fourth aspect of the present invention, in the rotating electrical machine system according to the first aspect, the rotor position control means loosens the force that restrains the displacement rotor on the rotating shaft and uses the rotational driving force while the rotor is accelerated. The displacement position of the displacement rotor is increased, and while the rotor is decelerated by regenerative braking, the rotor position control means loosens the force that constrains the displacement rotor to the rotating shaft, and the regenerative braking force is used for displacement rotation. It is characterized in that the amount of displacement of the child is reduced and the induced voltage is controlled to be a predetermined value.

  The displacement rotor is displaced using the force applied from the armature to the rotor. According to the present invention, the force required to displace the displacement rotor with respect to the rotation axis can be reduced. The force applied from the armature to the rotor is the rotational driving force and the regenerative braking force. The force that restrains the displacement rotor on the rotating shaft is controlled, and a part of the force is distributed as the displacement force of the displacement rotor. Distribution to the displacement force is controlled by the degree to which the restraining force is loosened.

  According to a fifth aspect of the present invention, in the rotating electrical machine system according to the first aspect, the rotor position control means includes a first planetary gear mechanism, a second planetary gear mechanism, and an actuator. A first sun gear fixed to the rotation shaft, a first ring gear fixed to the housing, a first sun gear, a first planetary gear meshing with the first ring gear, and a planetary gear support shaft; The planetary gear mechanism includes a second sun gear fixed to one of two displacement rotors, a second ring gear rotatably disposed by an actuator, a second sun gear, and a second planetary gear meshing with the second ring gear. The planetary gear support shaft is shared by the first planetary gear mechanism and the second planetary gear mechanism, and the actuator arranged on the housing side is connected to the second planetary gear mechanism. Gugia is displaced to the circumferential displacement rotor is characterized in that is displaced in the circumferential direction with respect to the rotation axis.

  By using a planetary gear mechanism for the rotor position control means and rotating the second ring gear with an actuator fixed on the housing side, the circumferential interval between the fixed rotor and the displacement rotor is changed. The planetary gear support shafts of the first planetary gear mechanism and the second planetary gear mechanism are common, and if the rotation of the planetary gear support shaft is output to the outside, a reduced rotational output can be obtained.

According to a sixth aspect of the present invention, in the rotating electrical machine system according to the fifth aspect, the rotor position control means rotates the second ring gear in a direction in which the second sun gear rotates faster than the first sun gear while the rotor is accelerated. The rotational speed of rotating in the circumferential direction is controlled, the displacement amount of the displacement rotor is increased by using the rotational driving force, and the rotor position control means is operated by the second sun gear while the rotor is decelerated by regenerative braking. The rotational speed of rotating the second ring gear in the circumferential direction is controlled in the direction of rotating more slowly, and the amount of displacement of the displacement rotor is reduced using regenerative braking force.

  Since the rotational driving force is applied to the fixed rotor and the displacement rotor, displacing the second ring gear in the circumferential direction through the actuator in a direction that causes the second sun gear to rotate faster than the first sun gear causes the displacement rotor to rotate. Therefore, the displacement rotor is displaced with respect to the fixed rotor by the rotational driving force. In the case of the regenerative braking force, the operating principle is the same when a reverse rotational force is applied to the rotor.

  Increasing the displacement speed of the second ring gear by the actuator reduces the force that constrains the displacement rotor to the rotating shaft, and decreasing the displacement speed increases the force that constrains the displacement rotor to the rotating shaft. The distribution of the force applied from the electric element to the rotor at the displacement speed of the second ring gear to the displacement force of the displacement rotor is controlled. According to the present invention, the displacement of the displacement rotor can be controlled with a small output actuator. By controlling the speed at which the second ring gear is displaced in the circumferential direction by the actuator, it is possible to control the force that restrains the displacement rotor on the rotating shaft.

  According to a seventh aspect of the present invention, in the rotating electrical machine system according to the first aspect, the rotor position control means includes a first planetary gear mechanism, a second planetary gear mechanism, and a clutch mechanism. A first sun gear fixed to the rotation shaft, a first ring gear fixed to the housing, a first sun gear, a first planetary gear meshing with the first ring gear, and a planetary gear support shaft. The two planetary gear mechanism includes a second sun gear fixed to one of the two displacement rotors, a second ring gear rotatably disposed in the housing, a second sun gear, and a second planetary meshing with the second ring gear. It has a gear and planetary gear support shaft, the planetary gear support shaft is shared by the first planetary gear mechanism and the second planetary gear mechanism, and the clutch mechanism can constrain the second ring gear to the housing During the acceleration of the rotor, the clutch mechanism is controlled in a direction to loosen the force that restrains the second ring gear to the housing, and the amount of displacement of the displacement rotor is increased by using the rotational driving force, and the rotor is regenerated. During deceleration by braking, the clutch mechanism is controlled in a direction to loosen the force that restrains the second ring gear to the housing, and the amount of displacement of the displacement rotor is reduced using the regenerative braking force.

  Since the rotational driving force is applied to the stationary rotor and the displacement rotor, the displacement rotor is displaced relative to the stationary rotor by the rotational driving force if the force that restrains the second ring gear to the housing is loosened. The distribution of the rotational driving force to the displacement force of the displacement rotor and the rotational force of the rotating shaft can be changed by controlling the force that restrains the second ring gear to the housing by the clutch mechanism. In the case of the regenerative braking force, the operating principle is the same when a reverse rotational force is applied to the rotor.

  According to an eighth aspect of the present invention, in the rotating electrical machine system according to the first aspect, the rotor position control means has a clutch mechanism, and the clutch mechanism can constrain one of the two displacement rotors to the rotating shaft. The clutch mechanism is controlled in the direction to loosen the force that constrains the displacement rotor to the rotating shaft while the rotor is accelerating, and the amount of displacement of the displacement rotor is increased by using the rotational driving force. During deceleration by regenerative braking, the clutch mechanism is controlled in a direction to loosen the force that restrains the displacement rotor on the rotating shaft, and the amount of displacement of the displacement rotor is reduced using the regenerative braking force.

  Since the rotational driving force is applied to the fixed rotor and the displacement rotor, if the force that restrains the displacement rotor on the rotating shaft is loosened, the rotational rotor causes the displacement rotor to be displaced relative to the fixed rotor, and the restraint The distribution of the rotational driving force to the displacement force is changed by controlling the force. In the case of the regenerative braking force, the operating principle is the same when a reverse rotational force is applied to the rotor.

  A ninth aspect of the present invention is the rotating electrical machine system according to the first aspect, wherein the reluctance torque exists in the rotor at both shaft ends, with the magnetic resistance along the circumferential direction being uniform in the circumferential direction of the rotor facing the armature. It is characterized by being configured to be difficult.

  A driving magnetic field whose phase is advanced or delayed from that of the intermediate rotor magnetic pole is applied to each magnetic pole of the rotor at both shaft ends. When the phase of the driving magnetic field advances and the reluctance torque changes at a faster cycle than the magnet torque, the reluctance torque appearing on the rotors at the ends of both shafts may reduce the rotational driving force. The rotor at both shaft ends preferably has a reluctance torque-free structure, and a rotor with a surface magnet structure is one of the magnetic pole configurations in which reluctance torque hardly exists.

The invention of claim 10 has an armature in which a plurality of armature coils are arranged in the circumferential direction and a rotor in which a plurality of magnetic salient poles are arranged in the circumferential direction. A method of controlling an induced voltage induced in an armature coil of a rotating electrical machine device that is configured to face and rotate in a radial direction through a gap, the rotor having three equal number of magnetic salient poles The rotors are arranged in the axial direction so as to face the armature, and at least the rotors at both shaft ends have a magnet excitation structure, and one shaft end rotor is fixed to the rotating shaft as a fixed rotor, and the intermediate rotor and the other The rotor at the shaft end side is configured as a displacement rotor so that it can be displaced in the same circumferential direction with respect to the fixed rotor, and any of the two displacement rotors can be displaced in the circumferential direction with respect to the intermediate rotor. Three rotors at the shaft end are relatively displaced in the opposite circumferential directions. A first sun gear that mechanically couples the trochanter and further includes a first sun gear disposed on the stationary rotor, a first ring gear fixed to the housing, a first sun gear, and a first planetary gear meshing with the first ring gear; A second sun gear having a planetary gear mechanism and meshing with a second sun gear disposed on one of the two displacement rotors, a second ring gear rotatably disposed by an actuator, a second sun gear, and a second ring gear It has a second planetary gear mechanism having a planetary gear , and the first planetary gear and the second planetary gear are configured to have a common planetary gear support shaft, and the rotational speed of the rotor is increased during acceleration. Displacement rotator by controlling the rotation speed of the second ring gear which is rotated in the direction opposite to the rotation direction of the rotor by the actuator so that the induced voltage becomes a predetermined value while continuing the increase. The rotor is displaced in the rotational direction with respect to the fixed rotor, and the rotation speed is continuously reduced while the rotor is decelerated by regenerative braking. An induced voltage control method characterized by controlling a rotational speed to rotate and displacing a displacement rotor with respect to a fixed rotor in a direction opposite to the rotation direction.

  Since the rotational driving force is applied to the fixed rotor and the displacement rotor, displacing the second ring gear in the circumferential direction through the actuator in a direction that causes the second sun gear to rotate faster than the first sun gear causes the displacement rotor to rotate. The displacement rotor is displaced relative to the fixed rotor by the rotational driving force, and the rotational driving force is displaced by the rotational speed of the second ring gear. Distribution is controlled. In the case of the regenerative braking force, the operating principle is the same when a reverse rotational force is applied to the rotor.

  The invention of claim 11 has an armature in which a plurality of armature coils are arranged in the circumferential direction, and a rotor in which a plurality of magnetic salient poles are arranged in the circumferential direction. A rotating force control method for a rotating electrical machine apparatus that is configured to face and rotate in a radial direction through a gap, wherein the rotor includes three rotors having the same number of magnetic salient poles arranged in an axial direction. Opposite the armature and at least the rotors at both shaft ends have a magnet excitation structure, one shaft end rotor is fixed to the rotating shaft as a fixed rotor, and the intermediate rotor and the other shaft end rotor are The displacement rotor is configured to be displaceable in the same circumferential direction with respect to the fixed rotor, and the two rotors at the shaft end with respect to the intermediate rotor, regardless of which of the two displacement rotors is displaced in the circumferential direction The three rotors are mechanically coupled so that they are displaced relative to each other in the opposite circumferential direction. The rotors at both shaft ends are configured so that the reluctance torque does not easily exist with uniform magnetic resistance along the outer periphery of the body, and an intermediate rotor is installed so that the reluctance torque can be obtained by periodically changing the magnetic resistance along the outer periphery of the magnetic body. Generated by increasing the displacement of the displacement rotor to reduce the induced voltage, increasing the margin of the power supply voltage relative to the induced voltage, and decreasing the displacement of the displacement rotor to increase the induced voltage. This rotational force control method is characterized in that the rotational drive force to be applied is increased and the rotational force is optimally controlled.

  The rotors at both shaft ends have a magnetic pole configuration in which reluctance torque is unlikely to exist, and the intermediate rotor is configured to obtain reluctance torque to ensure torque in a high-speed rotation range.

  According to the invention of claim 12, three rotors having the same number of magnetic salient poles are arranged in the axial direction so as to face the armature, and at least the rotors at both shaft ends have a magnet excitation structure, The rotor is fixed to the rotating shaft as a fixed rotor, and the intermediate rotor and the other shaft end side rotor are used as displacement rotors so that they can be displaced in the same circumferential direction with respect to the fixed rotor. Even if any of the rotors is displaced in the circumferential direction, the three rotors are mechanically coupled so that the two rotors at the shaft end relative to the intermediate rotor are displaced relative to each other in the circumferential direction. A vehicle driving force control method using a rotating electrical machine system having means for constraining a rotor to a rotating shaft as a driving source, wherein the displacement driving force of the displacement rotor and the driving force of the vehicle are changed from the rotational driving force while the vehicle is accelerated. The force that restrains the displacement rotor to the rotation axis is controlled to obtain The displacement is controlled so that the induced voltage becomes a predetermined value with respect to the power supply voltage by increasing the displacement of the motor, and the displacement rotation of the displacement rotor and the deceleration driving force of the vehicle are obtained while the vehicle is decelerated by regenerative braking. A method of controlling the driving force of the vehicle smoothly by controlling the force that restrains the rotor on the rotating shaft, and controlling the induced voltage to be a predetermined value relative to the power supply voltage by reducing the displacement amount of the displacement rotor. It is.

  Three rotors with the same number of magnetic salient poles are arranged in the axial direction to face the armature, one shaft end rotor is fixed to the rotating shaft as a fixed rotor, and the other two rotors are displaced This is a method of smoothly controlling the driving force of a vehicle in a vehicle having as a drive source a rotating electrical machine system that is configured to be displaceable in the same circumferential direction as the rotor.

  While accelerating the vehicle, the torque is distributed so that the displacement driving force of the displacement rotor and the driving force of the moving body can be obtained, and the displacement force of the displacement rotor is obtained while continuously obtaining the driving force of the vehicle. Control is made to increase the amount of displacement of the power supply voltage with respect to the induced voltage by increasing the amount of displacement, enabling rotation at higher speeds. The torque distribution of the rotational driving force is performed by controlling the restraining force of the displacement rotor on the rotating shaft. The same operation is performed when the vehicle is decelerated by regenerative braking, and the amount of displacement is reduced to increase the regenerative braking force and increase the generated torque at low speed.

  The torque distribution by the constraint force control to the rotation shaft of the displacement rotor is performed by controlling the constraint force while referring to the relationship between the displacement amount and the constraint force as a data map stored in advance in the controller. The rotation output is monitored by a torque sensor or other means, or the restraining force is controlled while monitoring the vehicle speed. According to the present invention, the driving of the vehicle can be controlled continuously and smoothly over the entire speed range.

  In the rotating electrical machine system, the rotor facing the armature is composed of three rotors with the same number of magnetic salient poles, and the induced voltage is controlled by displacing the two rotors in the circumferential direction relative to the other. Thus, large induced voltage suppression is possible within a range where the magnetic coupling force between the rotors is small. Proposed is a vehicle driving force control method that uses a rotational driving force and a regenerative braking force to enable displacement control of a displacement rotor with a small force, and further has a rotating electrical machine system of the present invention as a driving source.

It is a longitudinal cross-sectional view of the rotary electric machine apparatus by a 1st Example. Sectional drawing which follows A-A 'of the rotary electric machine apparatus shown by FIG. 1 is shown. It is the top view which looked at the 1st rotor of the rotary electric machine apparatus shown by FIG. 1 from the 2nd rotor side. It is a perspective view for demonstrating a rotor coupling | bonding mechanism. Sectional drawing which follows B-B 'of the rotary electric machine apparatus shown by FIG. 1 is shown. FIG. 2 is a view for showing a stopper that regulates a displacement amount of a first rotor in the rotating electrical machine apparatus shown in FIG. 1. FIG. 4A is a plan view of the first sun gear 1f viewed from the second sun gear 1g side, and FIG. 4B is a plan view of the second sun gear 1g viewed from the first sun gear 1f side. In the rotary electric machine apparatus shown by FIG. 1, it is a figure which shows the relative displacement direction of a 1st, 3rd rotor modelly with respect to a 2nd rotor. The figure (a) shows a perspective view, and the figure (b) shows a top view, respectively. FIG. 3 is a diagram schematically showing a displacement direction between rotors in a rotating electrical machine apparatus having a conventional structure in which a rotor is divided into two parts and one of them is displaced with respect to the other. The figure (a) shows a perspective view, and the figure (b) shows a top view, respectively. In the rotating electrical machine apparatus according to the present invention shown in FIG. 1 and the conventional rotating electrical machine apparatus shown in FIG. 8, the relationship between the rotor displacement and the induced voltage amplitude is shown. It is a perspective view which shows the relationship between a rotor displacement and a magnetic pole as a model, and the same figure (a), the figure (b), and the figure (c) are 45 degrees in the circumferential direction space | interval between adjacent rotors, respectively. , 90 degrees, and 135 degrees. The state of change in the rotational driving force received by the rotor when the drive current is advanced is shown. It is a block diagram of the rotary electric machine system which performs induced voltage control. It is a longitudinal cross-sectional view of the rotary electric machine apparatus by a 2nd Example. Sectional drawing which follows C-C 'of the rotary electric machine apparatus shown by FIG. 12 is shown. It is the top view which looked at the 1st rotor of the rotary electric machine apparatus shown by FIG. 12 from the 2nd rotor side. It is the top view which looked at the rotor position control means of the rotary electric machine apparatus shown by FIG. 12 from the 1st rotor side. 12 shows an enlarged rotor position control means of the rotating electrical machine apparatus shown in FIG. 12, and shows a state in which the rotational force is transmitted through the clutch plate. 12 shows an enlarged rotor position control means of the rotating electrical machine apparatus shown in FIG. 12, and shows a state in which no rotational force is transmitted through the clutch plate. It is a block diagram of the drive system of the vehicle by a 3rd Example.

  In the following, a rotating electrical machine system according to the present invention will be described with reference to the drawings, with regard to embodiments, principles and actions.

  A first embodiment of a rotating electrical machine apparatus according to the present invention will be described with reference to FIGS. Three magnet-excited rotors face the armature as the first rotor, second rotor, and third rotor, and the first and second rotors use planetary gear mechanisms for the third rotor. This is a rotating electrical machine device that is displaced in the same circumferential direction and whose rotational force is optimally controlled.

  FIG. 1 is a longitudinal sectional view of an embodiment in which the present invention is applied to a rotating electrical machine apparatus having an inner rotor structure. A rotating shaft 11 is rotatably supported by a housing 12 via a bearing 13. The first rotor 14 and the second rotor 15 are held to be displaceable on the rotating shaft 11 via bearings, and the third rotor 16 is fixed to the rotating shaft 11. The region in which the displacement of the first rotor 14 and the second rotor 15 is controlled is a region in front of the normal rotation direction with respect to the third rotor 16, and the first rotor 14 is focused on the magnetic poles having the same polarity. Is arranged in such a manner that the third rotor 16 is arranged at the end, the second rotor 15 is arranged in the middle of both. The axial length of the first rotor 14, the axial length of the second rotor 15, and the axial length of the third rotor 16 are set to 3: 4: 3 as a ratio. Reference numeral 19 denotes an armature coil, reference numeral 17 denotes an armature core, and reference numeral 18 denotes a nonmagnetic insulating material spacer. The thickness of the spacer 18 is set smaller than the interval between adjacent rotors.

  Number 1a is a side gear fixed to the side surface of the first rotor 14, Number 1b is a side gear fixed to the side surface of the third rotor 16, Number 1c is a coupling gear meshing with the side gear 1a, Number 1e is a coupling gear support shaft, Reference numeral 1d denotes a coupling gear fixed to the coupling gear support shaft 1e and rotating together with the coupling gear 1c. The coupling gear support shaft 1 e is rotatably supported by the second rotor 14. The coupling gear meshing with the side gear 1b, the coupling gear meshing with the coupling gear 1d, and their support shafts are not shown in FIG. 1, but rotate together with the coupling gear 1c, the coupling gear 1d, and the coupling gear support shaft 1e. A child coupling mechanism is constructed and described later.

  Reference numeral 1f denotes a first sun gear fixed to the rotary shaft 11, reference numeral 1k denotes a first ring gear fixed to the housing 12, and reference numeral 1p denotes a first planetary gear that meshes with the first sun gear 1f and the first ring gear 1k. The first planetary gear 1p is rotatably supported on the planetary gear shaft 1r to constitute a first planetary gear mechanism. Reference numeral 1g is a second sun gear fixed to the first rotor 14, reference numeral 1m is a second ring gear rotatably supported by the housing 12, and reference numeral 1q is a second gear meshing with the second sun gear 1g and the second ring gear 1m. Each of the planetary gears is shown, and the second planetary gear 1q is rotatably supported by the planetary gear shaft 1r to constitute a second planetary gear mechanism.

  Three sets of the first planetary gear 1p, the second planetary gear 1q, and the planetary gear shaft 1r are arranged in the circumferential direction, and the planetary gear shaft 1r is supported by the planetary gear carrier 1t. Reference numeral 1s denotes a worm gear, which is configured to mesh with a gear carved on the side surface of the second ring gear 1m. Further, the worm gear 1s is connected to be rotatable by an actuator (not shown). The first sun gear 1f and the second sun gear 1g, the first ring gear 1k and the second ring gear 1m, the first planetary gear 1p and the second planetary gear 1q have the same specifications, and the two planetary gear mechanisms described above. The worm gear 1s and the actuator (not shown) constitute rotor position control means.

  FIG. 2 is a cross-sectional view taken along A-A ′ of the rotating electrical machine apparatus shown in FIG. 1, and shows a cross section of the armature and the second rotor 15. The armature core 17 is formed by laminating silicon steel plates, and an armature coil 19 is wound around the armature core 17. Twelve armature coils 19 are arranged and connected to form an 8-pole 12-slot structure in combination with an 8-pole rotor magnetic pole. The present invention can also be configured by using other configurations, for example, distributed winding corresponding to 8 poles and 12 slots, 8 poles and 9 slots, 10 poles and 12 slots.

  The 2nd rotor 15 is comprised by the 2nd rotor support 25 and the magnetic pole part arrange | positioned on the outer periphery. In the magnetic pole portion, a permanent magnet is embedded in the magnetic body so that magnet torque and reluctance torque can be obtained. That is, the magnetic pole part of the rotor is configured by inserting the permanent magnet 21 into the slot of the rotor core 22 formed by stacking. Reference numeral 23 indicates the magnetization direction of the permanent magnet 21, and eight magnetic salient poles (8 poles) whose polarities are alternately reversed in the circumferential direction are arranged. The second rotor support 25 is made of nonmagnetic stainless steel and is held on the rotary shaft 11 so as to be displaceable. Three sets of coupling gears 1 d and coupling gears 26 that mesh with each other are arranged in the second rotor support 25. The coupling gear support shaft 27 that rotates together with the coupling gear 26 is rotatably supported by the second rotor support 25 in the same manner as the coupling gear support shaft 1e.

  FIG. 3 is a plan view of the first rotor 14 as viewed from the second rotor 15 side. The magnetic pole portion is composed of a rotor core 32 and a permanent magnet 31 formed by laminating silicon steel plates. Indicates the magnetization direction of the permanent magnet, and eight magnetic salient poles (8 poles) whose polarities are alternately reversed in the circumferential direction are arranged. Reference numeral 34 denotes a cylindrical outer shell for preventing the permanent magnet 31 from scattering, and is made of nonmagnetic stainless steel. The surface magnet configuration is such that reluctance torque is unlikely to exist, but the permanent magnet that constitutes one magnetic pole is divided into three so that the induced voltage waveform is close to a sine wave. Although the permanent magnet density in the magnetic pole periphery is smaller than the magnetic pole center on average, the same effect can be obtained by arranging a permanent magnet having a small residual magnetic flux density in the magnetic pole periphery.

  A side gear 1a is disposed on the first rotor support 35, and a gear 36 that meshes with the coupling gear 1c is carved on the inner peripheral surface of the side gear 1a. As shown in the longitudinal sectional view of FIG. 1, the side gear 1b arranged on the side surface of the third rotor 16 has the same shape as the side gear 1a. The magnetic pole configuration of the third rotor 16 is the same as that of the first rotor 14.

  FIG. 4 is a perspective view for explaining the rotor coupling mechanism, and the rotor coupling mechanism in which some members are shown in FIGS. The coupling gear support shaft 1e and the coupling gear support shaft 27 are rotatably supported by the second rotor 15, and coupling gears 1c and 1d are fixed to the coupling gear support shaft 1e. Coupling gears 26 and 41 are fixed to each other. The coupling gear 1d and the coupling gear 26 are arranged to mesh with each other. The coupling gear 1c is configured to mesh with the gear 36 carved on the inner peripheral surface of the side gear 1a, and the coupling gear 41 is configured to mesh with the gear carved on the inner peripheral surface of the side gear 1b.

  Coupling gears 1c, 1d, 26, 41, coupling gear support shafts 1e, 27, etc., and three sets of coupling gears arranged in the circumferential direction are the side gear 1a of the first rotor 14 and the third rotor. Since the coupling gear 1d and the coupling gear 26 rotate in opposite directions to each other, one of the first rotor 14 and the third rotor 16 rotates with respect to the second rotor 15. When displaced in the direction, the other is displaced in the opposite circumferential direction. In the present embodiment, the third rotor 16 is fixed to the rotating shaft 11, and the first rotor 14 and the second rotor 15 are configured to be displaceable in the same circumferential direction with respect to the third rotor 16 and the rotating shaft 11. Therefore, the circumferential intervals between the third rotor 16 and the second rotor 15 and between the third rotor 16 and the first rotor 14 are maintained at 1: 2, and the first rotor 14 and the second rotor are maintained. 15 is displaced relative to the third rotor 16.

  FIG. 5 is a cross-sectional view taken along the line B-B ′ of the rotating electrical machine apparatus shown in FIG. 1, showing a second planetary gear mechanism coupled to the first rotor 14. In the figure, a second sun gear 1g is fixed to a first rotor 14 (not shown) and meshes with two second planetary gears 1q arranged in the circumferential direction. The second planetary gear 1q is a first planetary gear 1q. It is configured to mesh with the two ring gear 1m. Further, the planetary gear shafts 1r of the three second planetary gears 1q are supported by the planetary gear carrier 1t shown in FIG. The second ring gear 1m can be displaced with respect to the housing 12, and can be rotated by an actuator (not shown). The first planetary gear mechanism arranged on the rotating shaft 11 has the same configuration except that the first ring gear 1k is fixed to the housing 12, and the description thereof is omitted.

  In FIG. 5, the arrow 51 indicates the rotation direction of the second sun gear 1g, the arrow 52 indicates the rotation direction of the second planetary gear 1q, and the arrow 53 indicates the rotation of the planetary gear shaft 1r. Indicates direction. When the second sun gear 1g rotates in the direction of the arrow 51 while the second ring gear 1m is stationary, the second planetary gear 1q rotates in the direction of the arrow 52, and the planetary gear shaft 1r and the planetary gear are rotated. The carrier 1t is rotated in the direction of the arrow 53. Since the first planetary gear mechanism and the second planetary gear mechanism have the same configuration and share the planetary gear shaft 1r, the first rotor 14, the rotating shaft 11, and the third rotor 16 rotate at the same rotational speed. To do. Since the second rotor 15 is also coupled to the first rotor 14 and the third rotor 16 by the rotor coupling mechanism, the second rotor 15 rotates at the same rotational speed. The planetary gear carrier 1t can be taken out as a decelerated output of the rotary shaft 11.

  When the second ring gear 1m is rotated by the external actuator in the rotation direction of the rotor (the same direction as the arrow 51), the planetary gear shaft 1r is difficult to change the rotation speed in the direction of the arrow 53. The rotational speed of the Lee gear 1q is decreased, and the rotational speed of the second sun gear 1g is decreased. Accordingly, the first rotor 14 is displaced relative to the third rotor 16 in the direction opposite to the arrow 51 (the direction opposite to the rotation direction of the rotor). When the second ring gear 1m is rotated in the direction opposite to the rotation direction of the rotor by an external actuator, the first rotor 14 is in the same direction as the arrow 51 with respect to the third rotor 16 (the rotation direction of the rotor). In the same direction). Since the second rotor 15 is also coupled to the first rotor 14 and the third rotor 16 by the rotor coupling mechanism, the second rotor 15 is always displaced so as to be positioned between the two.

  FIG. 6 shows a stopper structure for restricting the circumferential displacement of the first rotor 14 relative to the third rotor 16. 6A is a plan view of the first sun gear 1f viewed from the second sun gear 1g side, and FIG. 6B is a plan view of the second sun gear 1g viewed from the first sun gear 1f side. Reference numeral 61 denotes a recess provided on the side surface of the first sun gear 1 f, and the pin 62 disposed on the side surface of the first rotor support 31 is configured to engage with the recess 61. Reference numeral 63 indicates the direction of rotation of the rotary shaft 11. The pin 62 is disposed on the side surface of the first rotor support 31. The pin 62 is shown in FIG. 6A in order to clarify the relationship with the recess 61. In FIG. 6A, the pin 62 exists at the end in the recess 61, and the pin 62 has a mechanical angle of 65 degrees in the recess 61 so that the induced voltage suppression ratio remains in the range of 1.0 to 0.1. The angle is set so that it can move in the rotation direction 63 by 260 degrees. That is, the first rotor 14 is configured to be capable of relative displacement with respect to the third rotor 16 by an electrical angle of 260 degrees in the rotation direction.

  The configuration of the rotating electrical machine apparatus according to the first embodiment has been described with reference to FIGS. 1 to 6. In the present embodiment, magnet torque and reluctance torque can be used for the second rotor 15 which is an intermediate rotor. The polarity of the drive current can be switched with reference to the position where the magnetic salient pole of the second rotor 15 and the armature coil 19 face each other, but the position where the phase of the drive current is advanced (for example, about 20 degrees in electrical angle) Thus, the torque generated by the second rotor 15 is maximized. This is different from the conditions in which the generated torque of the first rotor 14 and the third rotor 16 is maximized, so that the drive current is supplied to the armature coil by advancing by the electrical angle at which the combined torque is maximized, or the displacement rotation is performed. It is possible to set the reference position of the child to a position where the torque of each of the second rotor 15, the first rotor 14, and the third rotor 16 is maximized.

  Since the drive current polarity is switched based on the relative position between one armature coil in the electric coil 19 and the magnetic pole of the second rotor 15 for the rotation of the rotor, the first rotor 14 and the third rotor 16 are switched. Is equivalent to being driven to rotate by a drive current whose phase is advanced or delayed with respect to the second rotor 15. In this embodiment, permanent magnets 21 are arranged on the surface of the first rotor 14 and the third rotor 16 at both shaft ends, and the reluctance torque is hardly generated because the magnetic resistance along the outer periphery of the rotor is almost uniform. The generated torques of the first rotor 14 and the third rotor 16 are substantially equal at each displacement amount of the displacement rotor.

  The configuration of the rotating electrical machine apparatus according to the first embodiment and that the first rotor 14 and the second rotor 15 can be displaced in the circumferential direction with respect to the third rotor 16 by using FIGS. 1 to 6. . In the present embodiment, the circumferential intervals between the third rotor 16 and the second rotor 15 and between the third rotor 16 and the first rotor 14 are maintained at 1: 2, which is This is the same as the relative displacement of the rotor 14 and the third rotor 16 in the opposite circumferential directions with respect to the second rotor 15, and the operation principle that can control the induced voltage amplitude to the armature coil 19 is as follows. Explained. FIG. 7 is a model diagram so that the relative positional relationship among the first rotor 14, the second rotor 15, and the third rotor 16 can be easily understood, and FIG. 7A is a perspective view. FIG. 7B is a plan view.

  7A, three rotors are arranged in the axial direction in the order of the first rotor 14, the second rotor 15, and the third rotor 16, and the first rotor 14 and the third rotor 16 are indicated by arrows 71, A state in which the second rotor 15 is relatively displaced in the circumferential direction opposite to each other as indicated by 72 is schematically shown. Further, FIG. 7B is a view of this as viewed from the rotating shaft 11 side. Focusing on one magnetic pole in the rotor, number 73 indicates the magnetic pole position of the second rotor 15, number 74 indicates the magnetic pole position of the displaced first rotor 14, and number 75 indicates the position of the displaced third rotor 16. Each magnetic pole position is shown. Reference numerals 76 and 77 indicate the relative displacement amounts of the first rotor 14 and the third rotor 16. In the present embodiment, these relative displacement amounts are set equal. Number 63 indicates the direction of rotation of the entire rotor.

  When ω is the rotational angular frequency, t is time, and the displacements 76 and 77 are the electrical angle 2θ, the induced voltages from the second rotor 15, the first rotor 14, and the third rotor 16 to the armature coil 19 are respectively It is proportional to Sinωt, Sin (ωt + 2θ), Sin (ωt−2θ). If the ratio of contribution from the first rotor 14, the second rotor 15, and the third rotor 16 to the induced voltage amplitude is q: p: q, the induced voltage is (4 * q * Cosθ * Cosθ + p-2 * q). ) * Sinωt. In this embodiment, the ratio of contribution from the first rotor 14, the second rotor 15, and the third rotor 16 to the induced voltage amplitude is 3: 4: 3, and the maximum amplitude is normalized to 1.0 and synthesized. The induced voltage amplitude is 1.2 * Cosθ * Cosθ−0.2.

  Therefore, the rotating electrical machine apparatus of the present embodiment shown in FIG. 1 is not shown in the figure, when the induced voltage induced in the armature coil 19 is larger than a predetermined value by the control device (not shown), the actuator and worm gear 1s not shown. When the second ring gear 1m is displaced in the direction opposite to the rotation direction of the rotor (the direction opposite to the arrow 51) via the, the relative displacement amounts of the first rotor 14 and the second rotor 15 with respect to the third rotor 16 are changed. The induced voltage is reduced by increasing it, and the margin of the power supply voltage with respect to the induced voltage is increased so that it can be driven at high speed.

  When the induced voltage is smaller than a predetermined value, when the second ring gear 1m is displaced in the rotation direction of the rotor (arrow 51) via an actuator (not shown) and the worm gear 1s, the first rotor with respect to the third rotor 16 is used. 14. Reduce the relative displacement of the second rotor 15 to increase the induced voltage and increase the torque for driving the rotor.

  In order to show the feature of the present invention, it is compared with a rotating electrical machine apparatus having a conventional structure in which the rotor is divided into two parts and one is displaced in the circumferential direction with respect to the other. As shown in a model perspective view in FIG. 8A, one rotor 82 divided into two is displaced with respect to the other rotor 81. Number 83 indicates the direction of displacement. FIG. 8B is a view as seen from the rotating shaft side, focusing on one magnetic pole in the rotor, number 84 indicates the magnetic pole position of the rotor 81, and number 85 indicates the magnetic pole position of the rotor 82. . Reference numeral 87 indicates the amount of displacement, and reference numeral 86 indicates the position of the composite magnetic pole.

  The induced voltages from the rotor 81 and the rotor 82 to the armature coil with respect to the position 86 of the composite magnetic pole are proportional to Sin (ωt−θ) and Sin (ωt + θ), respectively. When the axial lengths of the rotor 81 and the rotor 82 are equal and the maximum amplitude is normalized to 1.0, the induced voltage is expressed as (Sin (ωt−θ) + Sin (ωt + θ)) / 2. This expression is modified as Cos θ * Sin ωt, and the induced voltage amplitude is proportional to Cos θ, where the displacement amount of the rotor 82 relative to the rotor 81 is 2θ.

  The features of the rotating electrical machine apparatus of the present invention as compared with the conventional structure will be described with reference to FIG. In FIG. 9, the vertical axis 95 represents the induced voltage amplitude by normalizing the maximum amplitude at which the displacement 2θ is zero to 1.0, and the horizontal axis 96 represents the displacement 2θ from 0 to 180 degrees in electrical angle. Yes. Reference numeral 93 represents the induced voltage amplitude of the present embodiment, and reference numeral 92 represents the induced voltage amplitude in the conventional structure in which the axial lengths of the rotor 81 and the rotor 82 are configured to be equal.

  It is clear from FIG. 9 that the induced voltage amplitude 92 cannot be reduced easily in a region where the displacement 2θ is as small as about 90 degrees. The induced voltage amplitude 93 according to the present embodiment decreases from the region of the relatively small displacement 2θ. In this embodiment, the ratio of the axial lengths of the first rotor 14, the second rotor 15, and the third rotor 16 is 3: 4: 3. The configuration in which the degree of contribution from the third rotor 16 to the induced voltage amplitude is 3: 4: 3 is referred to as a 343 configuration, and the axial length ratio is changed, or the degree of contribution from each rotor to the induced voltage amplitude is changed. It is possible to change the characteristics of induced voltage versus displacement. For example, in the 121 configuration, the induced voltage amplitude is Cosθ * Cosθ, which is indicated by reference numeral 91. Further, in the 212 configuration, 1.6 * Cosθ * Cosθ−0.6, which is indicated by the number 94.

  The maximum amount of rotation under the condition where the induced voltage is not suppressed is set as the base rotation rate, and the amount of displacement with which the induced voltage amplitude is 0.1 is simply considered when the driveable rotation speed is determined by the practically possible induced voltage suppression ratio. Compare with 2θ. A straight line numbered 97 indicates an induced voltage amplitude of 0.1, and displacements 2θ at points where the straight line 97 intersects the induced voltage amplitudes 91, 92, 93, and 94 are approximately 143 degrees, 169 degrees, and 120, respectively. It is 97 degrees. In the conventional structure, it is close to 180 degrees and there is almost no margin of displacement, but the induced voltage amplitudes 91, 93 and 94 of the rotating electrical machine apparatus according to the present invention have a considerable margin up to 180 degrees. That is, according to the present invention, the induced voltage amplitude can be reduced to 0.1 within the range of the displacement amount 2θ that can be realized. In other words, a rotating electrical apparatus having a wide rotational speed range that is 10 times or more the base rotational speed is realized.

  Further features of the present invention are illustrated by FIG. FIG. 10 is a diagram showing the relationship between the rotor displacement and the magnetic poles, and paying attention to the magnetic poles in the second rotor 15, the adjacent magnetic poles change with the circumferential displacement of the first rotor 14 and the third rotor 16. It is a perspective view which shows in model how it changes. 10A shows a case where 2θ is an electrical angle of 45 degrees, FIG. 10B shows a case where 2θ is 90 degrees, and FIG. 10C shows a case where 2θ is 135 degrees. Reference numeral 101 denotes an N pole in the second rotor 15, and reference numerals 102 and 103 denote adjacent S poles in the second rotor 15.

  Numbers 104 and 105 respectively indicate N poles in the first rotor 14 and the third rotor 16 at the same circumferential position as the N pole 101 in the second rotor 15 when 2θ is 0 degree. No. 107 is the S pole in the third rotor 16 at the same circumferential position as the S pole 102 in the second rotor 15 when 2θ is 0 degrees, and No. 106 is in the second rotor 15 when 2θ is 0 degrees. The S poles in the first rotor 14 at the same circumferential position as the S pole 103 are respectively shown. Reference numeral 108 denotes a displacement direction of the first rotor 14, and reference numeral 109 denotes a displacement direction of the third rotor 16.

  When the displacement angle 2θ becomes as large as 45 degrees, 90 degrees, and 135 degrees, the magnetic poles around the N pole 101 change to FIGS. 10 (a), 10 (b), and 10 (c). It should be noted that FIG. The N pole 104 and the S pole 107, and the N pole 105 and the S pole 106 are at the same position in the circumferential direction. There is a concern that magnetic poles having different polarities are aligned in the axial direction and the first rotor 14 and the third rotor 16 are magnetically coupled via the armature core 17. The second rotor 15 is present and there are few concerns. The armature core 17 is provided with nonmagnetic spacers 18 corresponding to the axial gap of the rotor and has a large axial magnetic resistance. Therefore, the axial magnetic resistance is large, and the first rotor 14 The magnetic flux that magnetically couples the third rotor 16 is unlikely to exist.

  Further, the displacement angle 2θ in FIG. 10B is 90 degrees, but the circumferential interval between the N pole 105 and the N pole 104 is 180 degrees. The conventional structure in which the rotor is divided into two parts corresponds to the case where the axial length of the second rotor 15 in FIG. 10 is zero, that is, the N pole 101 does not exist, and FIG. Since magnetic poles of different polarities are adjacent to each other in the direction, the magnetic attractive force is difficult to ignore. As shown in FIG. 9, when the induced voltage is to be greatly reduced in the conventional structure, the displacement angle 2θ needs to be increased to a region near 180 degrees, but this is difficult to realize.

  Further, FIG. 10C is a diagram in which the displacement angle 2θ is as large as 135 degrees, and the N pole 101 is approached by the S pole 106 and the S pole 107 of different polarities adjacent in the axial direction. However, as described with reference to FIG. 9, the displacement 2θ at which the induced voltage amplitude becomes 0.1 is approximately 120 degrees, and the second rotor 15, the first rotor 14, and the third rotor 16 are Displacement can be stopped before the displacement control becomes impossible due to the magnetic attractive force. Further, in the configuration in which the degree of contribution of the second rotor 15 to the induced voltage amplitude is made smaller than in the present embodiment, the rate of decrease of the induced voltage amplitude with respect to the displacement angle 2θ can be increased, so that the displacement inhibition factor due to the magnetic attractive force can be further reduced. As described above, in the present invention, the axial length and magnetic pole configuration of each rotor are optimally selected, and the first rotor 14, the second rotor 15, and the third rotor 16 are arranged in the axial direction in this order. This makes it difficult for the magnetic poles of different poles to be adjacent in the axial direction, and it is difficult to generate a magnetic attractive force that inhibits rotor displacement.

  The axial length of the nonmagnetic spacer 18 provided in the armature core 17 is set to be smaller than the interval between adjacent rotors, and the magnetic body of the armature core 17 protrudes into the gap between adjacent rotors. Therefore, the magnetic flux leaked from the magnetic poles in the rotor between the adjacent rotors easily flows into the magnetic body in the armature core 17, and the repulsive force between the same-pole magnetic poles of the adjacent rotors can be kept small. As described above, this is a countermeasure that is enabled by the configuration of this embodiment so that magnetic coupling between the different poles of adjacent rotors does not become a major obstacle. Reduction of magnetic force such as is realized.

  It has been described that the induced voltage amplitude to the armature coil 19 is controlled by the displacement of the first rotor 14 and the second rotor 15 with respect to the third rotor 16 as described above. In the present embodiment, the axial length of the first rotor 14, the axial length of the second rotor 15, and the axial length of the third rotor 16 are set at a ratio of 3: 4: 3. If the relative displacement between the rotors adjacent in the direction is 2θ in electrical angle, the induced voltage amplitude to the armature coil is proportional to 1.2 * Cosθ * Cosθ−0.2. Until the polarity of the induced voltage amplitude is reversed, the range of the relative displacement 2θ ranges from zero to about 132 degrees. Therefore, the displacement range of the second rotor 15 with respect to the third rotor 16 is from zero to about 132 degrees, and the displacement range of the first rotor 14 is from zero to about 264 degrees. The stopper is arranged so that the displacement range of the first rotor 14 is from zero to 260 degrees.

  In the above description, the detection of the induced voltage has not been particularly described. However, the induced voltage amplitude is an important parameter for knowing the relative displacement amount of the first rotor 14 and the second rotor 15. It is important to keep track of the induced voltage amplitude at all times. If the induced voltage amplitude and the rotational speed are known, the relative displacement of the first rotor 14 and the second rotor 15 with respect to the third rotor 16 can be known from a previously stored data map, and the rotation with respect to the drive current can be determined. Knowing the driving force, you can also determine the direction to the next control.

  As described above, in the rotating electrical machine apparatus shown in FIGS. 1 to 10, the induced voltage to the armature coil 19 is increased by displacing the first rotor 14 and the second rotor 15 with respect to the third rotor 16. Explained that it can be controlled. However, the considerable mass of the rotor and the magnetic force between the remaining rotors even if reduced by the present invention are factors that inhibit the rapid displacement of the first rotor 14 and the second rotor 15. In the present invention, a solution to this problem is also provided, and the first rotor 14 and the second rotor 15 can be quickly displaced by displacing the second ring gear 1m with a small output actuator.

  That is, when the second ring gear 1m is rotated in the direction opposite to the arrow 51 by the external actuator during the speed increase of the rotor, the rotational driving force is added to the acting force of the actuator via the second ring gear 1m. The forward displacement of the single rotor 14 in the rotational direction is accelerated. Further, when the second ring gear 1m is rotated in the same direction as the arrow 51 by an external actuator during the regenerative braking in which power is drawn from the armature coil 19, the first rotor 14 has a regenerative braking force in addition to the acting force of the actuator. In addition, the displacement in the direction opposite to the rotation direction is accelerated. Thus, according to the present invention, the actuator can be a small and small output type.

  During the speed increase of the rotor, the second ring gear 1 m receives a displacement pressure in the direction opposite to the arrow 51. Therefore, displacing the second ring gear 1m in the direction opposite to the arrow 51 is equivalent to loosening the force that restrains the second ring gear 1m to the housing 12 and the force that restrains the first rotor 14 to the rotating shaft 11. is there. In addition, when the rotor is decelerated by regenerative braking, displacing the second ring gear 1m in the direction of the arrow 51 restricts the second ring gear 1m to the housing 12, and the first rotor 14 to the rotational shaft 11. It is equivalent to loosening the power to do. In this way, the force that acts on the rotor from the armature can be used for the displacement of the rotor by loosening the force that restrains the first rotor 14 to the rotating shaft 11, but the control of the restraining force is an area that requires precision. There is.

  FIG. 11 shows the degree of decrease in the rotational driving force received by the rotor having no reluctance torque when the drive current supplied to the armature coil 19 is advanced. Rotation driving force received by the rotor when the drive current switching timing is shifted from that time when the rotor is driven to rotate by reversing the polarity of the drive current with respect to the time when the rotor magnetic pole is directly facing the armature coil 19. Decrease. In FIG. 11, numeral 111 indicates a rotational driving force that changes with respect to the advance amount of the driving current, a vertical axis 112 indicates a rotational driving force normalized to 1.0, and a horizontal axis 113 indicates The advance amount of the drive current is expressed in electrical angle. A negative advance amount means a delay angle.

  In this embodiment, the combined magnetic pole of the three rotors is the same as the magnetic pole position of the intermediate second rotor 15, so that the drive current flowing through the armature coil 19 during the rotation of the rotor is the second rotation. The polarity is switched on the basis of the magnetic pole position of the child 15, and the first rotor 14 and the third rotor 16 are always applied with a rotational driving force by a driving current whose phase is advanced or delayed. The point to be noted is a region where the advance amount is larger than 90 degrees as shown in the figure, and the direction of the rotational driving force is reversed.

  That is, when the circumferential interval between the second rotor 15, the first rotor 14, and the third rotor 16 is 90 degrees or more in electrical angle, the rotational driving force applied to the second rotor 15 and the first rotor 14, the direction is opposite to the rotational driving force applied to the third rotor 16. Therefore, if the first rotor 14 and the second rotor 15 are freed by loosening the force that restrains the first rotor 14 and the second rotor 15 to the rotating shaft 11 during the acceleration of the rotor, the first rotor 14, all the rotational driving force acting on the second rotor 15 is used for the displacement of the first rotor 14 and the second rotor 15, and the rotary shaft 11 rotates only with the rotational driving force acting on the third rotor 16. Although it is driven, the rotational driving force to the third rotor 16 is decelerated and driven in the direction opposite to the rotational direction of the rotary shaft 11.

  In this regard, the present invention appropriately distributes the rotational driving force acting on the first rotor 14 and the second rotor 15 to the displacement force of the first rotor 14 and the second rotor 15 and the rotational driving force of the rotary shaft 11. A control method is proposed, and the first rotor 14 and the second rotor 15 are displaced while the rotary shaft 11 is continuously driven to rotate. In this embodiment, during the speed increase of the rotor, the rotational speed of rotating the second ring gear 1m in the direction opposite to the arrow 51 by an external actuator is controlled, and the force for restraining the first rotor 14 to the rotary shaft 11 is controlled. Control. When the rotation speed of the second ring gear 1m is large, the force that restrains the first rotor 14 to the rotating shaft 11 is weakened, and the displacement force to the first rotor 14 and the second rotor 15 is increased, and the second ring gear 1m is increased. When the rotational speed of the gear 1m is low, the restraining force is increased and the displacement force to the first rotor 14 and the second rotor 15 is reduced. When the regenerative braking force is used as the displacement force to the first rotor 14 and the second rotor 15, the same applies except that the direction in which the second ring gear 1m is rotated is reversed.

  The present embodiment is a system for optimizing the output by controlling the induced voltage using the rotational driving force, and the control as a rotating electrical machine system will be further described. FIG. 12 shows a block diagram of a rotating electrical machine system that performs induced voltage control. The rotating electrical machine device 121 has an input 122 and an output 123, and the control device 124 receives the output 123 of the rotating electrical machine device 121 and the rotor position signal 127 as inputs and controls the induced voltage. Reference numeral 126 denotes an actuator that controls the rotor position control means, and reference numeral 125 denotes a drive circuit that supplies a drive current to the armature coil 19. If the rotating electrical machine device 121 is used as a generator, the input 122 is a rotational force and the output 123 is generated power. If the rotating electrical machine device 121 is used as an electric motor, the input 122 is a driving current supplied from the driving circuit 125 to the armature coil 19, and the output 123 is a rotational torque and a rotational speed.

  When the rotating electrical machine apparatus is used as an electric motor, the rotational driving force is optimally controlled by performing induced voltage control using the rotational driving force. When the induced voltage induced in the armature coil 19 exceeds a predetermined value, the control device 124 displaces the first rotor 14 and the second rotor 15 in the rotational direction with respect to the third rotor 16. A power supply for the induced voltage so as to reduce the induced voltage by increasing the circumferential interval between the first rotor 14 and the second rotor 15 and between the second rotor 15 and the third rotor 16 and to drive at higher speed. Increase the voltage margin.

  That is, while the drive current is supplied from the drive circuit 125 to the armature coil 19 to increase the speed of the rotor, the increase in the rotation speed of the output 123 is continued and the induced voltage appearing in the armature coil 19 becomes a predetermined value. The actuator 126 controls the rotation speed of rotating the second ring gear 1m in the direction opposite to the arrow 51 (the direction opposite to the rotation direction of the rotor), and the first rotor 14 and the second rotor 15 are controlled by the third rotor. 16 is displaced in the rotational direction.

  When the induced voltage becomes smaller than a predetermined value, the control device 124 displaces the first rotor 14 and the second rotor 15 with respect to the third rotor 16 in the direction opposite to the rotation direction to increase the induced voltage. To increase the torque that drives the rotor. That is, while the rotor is decelerated by regenerative braking, the rotation speed of the output 123 is continuously reduced, and the second ring gear 1m is moved in the direction of the arrow 51 by the actuator 126 so that the induced voltage appearing in the armature coil 19 becomes a predetermined value. The rotational speed rotated in (rotational direction of the rotor) is controlled, and the first rotor 14 and the second rotor 15 are displaced relative to the third rotor 16 in the direction opposite to the rotational direction.

  In the present embodiment, the first rotor 14 and the second rotor 15 are displaced in the circumferential direction by using an actuator that rotationally drives the second ring gear 1m and the rotational driving force of the rotating electrical machine apparatus. Since the first rotator 14 and the second rotator 15 are displaced in the circumferential direction by using the rotational driving force, the actuator is constituted by a small output actuator. Furthermore, the worm gear 1s and the actuator are replaced with a clutch and brake system that holds the circumferential position of the second ring gear 1m, and the first rotor 14 and the second rotation are controlled by controlling the force that restrains the second ring gear 1m to the housing 12. The rotary drive force and regenerative braking force applied to the child 15 from the armature are appropriately distributed to the first rotor 14, the force that displaces the second rotor 15 in the circumferential direction, and the force that drives the rotary shaft 11. The system can be configured. Any of these configurations are included in the present invention.

  In this embodiment, the relative displacement amounts of the first rotor 14 and the third rotor 16 with respect to the second rotor 15 are set equal. However, a leading phase driving magnetic field is applied to the first rotor 14 and a delayed phase driving magnetic field is applied to the third rotor 16. As a result, the permanent magnet of each rotor is demagnetized and magnetized. In addition, the degree of contribution of the first rotor 14 and third rotor 16 to the torque of the entire rotor may change depending on the amount of displacement, including the case where a rotor structure with a slight reluctance torque is employed. In that case, the gear ratio of the gear shown in FIG. 4 can be selected and configured so that the relative displacement amounts of the first rotor 14 and the third rotor 16 with respect to the second rotor 15 are different.

  In this embodiment, the circumferential displacement range of each of the first rotor 14 and the third rotor 16 with respect to the second rotor 15 is from zero to about 132 degrees, but the displacement range is from zero to 90 degrees. It is also possible to use a rotational drive method in which the phase of the drive current is advanced to make the field weaker in the higher rotational speed region. The state in which the displacement amount between the adjacent rotors is 90 degrees is the state shown in FIG. 10B, and the contribution from the first rotor 14 and the third rotor 16 to the rotational torque becomes zero, and the second rotor 15 Only the torque generated. When the induced voltage amplitude is suppressed by the displacement of the displacement rotor, the magnet torque decreases according to the suppression ratio, but the reluctance torque remains, and it becomes easy to secure the necessary rotational torque in the high-speed rotation region.

  A second embodiment of the rotating electrical machine apparatus according to the present invention will be described with reference to FIGS. Three rotors with the same number of magnetic salient poles face the armature as the first rotor, second rotor, and third rotor, and the first and third rotors on both shaft ends are magnet excitation structures. The intermediate second rotor does not have a magnet.

  FIG. 13 is a longitudinal sectional view of an embodiment in which the present invention is applied to a rotating electrical machine apparatus having an inner rotor structure. A rotating shaft 11 is rotatably supported by a housing 131 via a bearing 13. The first rotor 132 and the second rotor 133 are held on the rotary shaft 11 through bearings so as to be displaceable, and the third rotor 134 is fixed to the rotary shaft 11. The region in which the displacement of the first rotor 132 and the second rotor 133 is controlled is a region in front of the normal rotation direction with respect to the third rotor 134, and the first rotation focusing on one magnetic salient pole. The rotor 132 is positioned at the head in the rotational direction, the third rotor 134 is positioned at the rearmost part, and the second rotor 133 is positioned between the two. Reference numeral 19 denotes an armature coil, reference numeral 17 denotes an armature core, and reference numeral 18 denotes a nonmagnetic insulating material spacer.

  Reference numeral 135 denotes a coupling gear, and reference numeral 136 denotes a coupling gear support shaft, which is rotatably held by the second rotor 133. The coupling gear support shaft 136 is in the radial direction, and in this embodiment, three combinations of the coupling gear 135 and the coupling gear support shaft 136 are arranged in the circumferential direction. Reference numerals 137 and 138 are side gears arranged on the side surfaces of the first rotor 132 and the third rotor 134, respectively, and are arranged so that gears are engraved in the circumferential direction and mesh with the coupling gear 135, respectively. The coupling gear 135, the coupling gear support shaft 136, the side gear 137, the side gear 138, and the like constitute a rotor coupling mechanism, and the side gear 137 and the side gear 138 rotate in opposite directions to each other. If either one of the rotor 132 and the third rotor 134 is displaced in the circumferential direction, the other is displaced in the opposite circumferential direction.

  Reference numeral 139 denotes a clutch plate fixed to the side of the first rotor 132, reference numeral 13a denotes a movable clutch plate, reference numeral 13d denotes a spring, reference numeral 13e denotes a spring stopper, and the movable clutch plate 13a is pressed against the clutch plate 139 by the spring 13d. It has been. Reference numerals 13c and 13b denote arms. The rotary shaft 11 and the arm 13c, the arm 13c and the arm 13b, and the arm 13b and the movable clutch plate 13a are connected by a rotatable joint, respectively. The movable clutch plates 13a are arranged in groups and can be displaced in a direction parallel to the rotation shaft 11 and rotate together with the rotation shaft 11.

  Reference numeral 13 g denotes an exciting coil that circulates around the rotating shaft 11, and reference numeral 13 f denotes an exciting core that has a C-shaped section and circulates around the rotating shaft 11. The exciting core 13 f is fixed to the housing 131. At least the magnetic material is used for the exciting core 13f side member of the movable clutch plate 13a, and the clutch plate 139, the movable clutch plate 13a, the arm 13c, the arm 13b, the spring 13d, the spring stopper 13e, the exciting core 13f, the exciting coil 13g, etc. Rotor position control means is configured.

  FIG. 14 is a cross-sectional view taken along C-C ′ of the rotating electrical machine apparatus shown in FIG. 13, and shows a cross section of the armature and the second rotor 133. The armature has the same configuration as that of the first embodiment, and the same members are denoted by the same reference numerals, and repeated description is omitted. The magnetic pole part of the second rotor 133 is laminated with a silicon steel plate 142 having a convex arc-shaped slit formed on the inner peripheral side, and a nonmagnetic material 143 is inserted into the slit to constitute a flux barrier. The magnetic resistance along the outer periphery of the second rotor 133 is divided into large and small so that eight magnetic salient poles are arranged by the flux barrier. The second rotor support 141 is made of nonmagnetic stainless steel and is held on the rotary shaft 11 so as to be displaceable. Three sets of coupling gears 135 and coupling gear support shafts 136 are arranged in the second rotor support 141.

  FIG. 15 is a plan view of the first rotor 132 viewed from the second rotor 133 side. The magnetic pole portion is configured such that radial slits are arranged at equal intervals in the circumferential direction in a magnetic body 153 made of a silicon steel plate, and a permanent magnet 152 and a non-magnetic body 155 are inserted into the slit so that reluctance torque does not easily exist. ing. The arrow with the number 154 indicates the magnetization direction of the permanent magnet 152, and the magnetic salient poles adjacent to each other in the circumferential direction are magnetized in different polarities, and eight magnetic salient poles are arranged. A side gear 137 is disposed on the first rotor support 151. As shown in FIG. 13, a side gear 138 having the same shape as that of the side gear 137 is disposed on the side surface of the third rotor 134, and the magnetic pole configuration of the third rotor 134 is the same as the magnetic pole configuration of the first rotor 132. It is.

  As described with reference to FIGS. 14 and 15, the second rotor 133 is rotationally driven by reluctance torque, and the first rotor 132 and the third rotor 134 are rotationally driven only by magnet torque. It is a configuration. The reference position is the position where the rotors are arranged in the axial direction at the circumferential position where the generated torque of each rotor is maximum, and the first rotor 132, which is a displacement rotor from the reference position according to the rotational speed, The two rotors 133 are displaced in the normal rotation direction, and the first rotor 132 and the third rotor 134 are relatively displaced with respect to the second rotor 133 in opposite circumferential directions. The magnetic salient poles of the first rotor 132 and the magnetism of the third rotor 134 which are opposite in polarity at a position where the circumferential interval between the first rotor 132 and the third rotor 134 is 180 degrees in electrical angle. The induced salient pole is opposed to the axial direction, and the induced voltage and the rotational torque are canceled out. Therefore, the displacement of the first rotor 132 and the second rotor 133 which are displacement rotors is stopped at this position, and the first rotor 132 and the second rotor 133 are rotated only by the reluctance torque of the second rotor 133.

  FIG. 16 is a plan view of the rotor position control means viewed from the first rotor 132 side, and the configuration of the rotor position control means will be further described. The movable clutch plate 13a has a structure that circulates around the rotating shaft 11, and a surface that contacts the clutch plate 139 is a sliding surface 161. A rotational force is transmitted between the clutch plate 139 and the sliding surface 161 of the movable clutch plate 13a.

  As shown in FIG. 16, the movable clutch plate 13a is supported on the rotary shaft 11 by three arm assemblies. In one of the arm assemblies, joints 162 and 163 are arranged at both ends of the arm 13c so that each member is numbered. The joint portion 162 is configured to be rotatable about a pin 165 fixed to the rotating shaft 11, and the joint portion 163 is configured to be rotatable about a pin 166 fixed to the arm 13b. Further, the joint portion 164 disposed on the arm 13b is configured to be rotatable about a pin 167 fixed to the movable clutch plate 13a.

  In this way, the movable clutch plate 13a is supported on the rotating shaft 11 by the three sets of arms composed of the arm 13c, the arm 13b, the joint portion 162, the joint portion 163, the joint portion 164, and the like. The joint part 164 is configured to be rotatable in the plane of the longitudinal sectional view shown in FIG. Therefore, the movable clutch plate 13 a can be displaced in a direction parallel to the rotation shaft 11 and rotates together with the rotation shaft 11.

  The operation of the rotor position control means will be described with reference to FIGS. FIG. 17 is an enlarged longitudinal sectional view of the rotor position control means shown in FIG. 13. The movable clutch plate 13a is pressed against the clutch plate 139 by a spring 13d, and the gap between the clutch plate 139 and the movable clutch plate 13a is shown. In this state, the rotational torque is transmitted. In this state, the first rotor 132, the second rotor 133, and the third rotor 134 rotate together with the rotating shaft 11.

  FIG. 18 is a view in which the movable clutch plate 13a is separated from the clutch plate 139 in FIG. When an exciting current is passed through the exciting coil 13g, an exciting magnetic flux 181 is induced in the exciting core 13f, and the movable clutch plate 13a, at least a part of which is made of a magnetic material, is attracted to the exciting core 13f side. 13a is pulled away from the clutch plate 139. FIG. 18 shows this state, in which the third rotor 134 rotates together with the rotating shaft 11, but the coupling between the first rotor 132 and the rotating shaft 11 is released, and the first rotor 132 moves relative to the rotating shaft 11. It will be ready to rotate freely.

  In the state shown in FIG. 18, when a rotational driving force is applied from the armature coil 19 to the rotor, the third rotor 134 is accelerated together with the rotary shaft 11 and the rotary load connected to the rotary shaft 11. Since the first rotor 132 and the second rotor 133 have a smaller moment of inertia than the third rotor 134, the first rotor 132 and the second rotor 133 are more easily accelerated and displaced in the rotational direction with respect to the third rotor 134. When a reverse rotational driving force is applied so as to decelerate the rotor, or when regenerative braking is performed to extract electric power from the armature coil, the first rotor 132 and the second rotor 133 are rotated by the third rotation. The child 134 is displaced in the direction opposite to the rotation direction.

  If the exciting current passed through the exciting coil 13g is increased, the force against the spring 13d is increased, and if the exciting current is decreased, the force against the spring 13d is decreased. In this embodiment, the magnitude of the excitation current is controlled to adjust the force for pressing the movable clutch plate 13a against the clutch plate 139, and the movable clutch plate 13a and the clutch plate 139 are slid relative to each other as an intermediate state between FIGS. The rotational driving force or regenerative braking force transmitted between the movable clutch plate 13a and the clutch plate 139 is distributed as the displacement force of the first rotor 132 and the second rotor 133.

  The first rotor 132 and the second rotor 133 are displaced by a rotational driving force or a regenerative braking force, but the first rotor 132, the second rotor 133, and the third rotor 134 are coupled to each other by a rotor coupling mechanism. Therefore, the second rotor 133 is always displaced so as to be positioned between the first rotor 132 and the third rotor 134. That is, the displacement amount of the second rotor 133 relative to the third rotor 134 is always half the displacement amount of the first rotor 132 relative to the third rotor 134.

  As described above, in the rotating electrical machine apparatus shown in FIGS. 13 to 18, it has been described that the first rotor 132 and the second rotor 133 can be displaced with respect to the third rotor 134. The present embodiment is a system that optimizes the output by controlling the induced voltage, and the control as the rotating electrical machine system will be further described with reference to FIG. FIG. 12 shows a block diagram of a rotating electrical machine system that performs induced voltage control, which has already been described in the first embodiment. In this embodiment, the number 126 is read as an excitation circuit that supplies an excitation current to the excitation coil 13g. .

  In the case where the rotating electrical machine is used as an electric motor, the rotational driving force is optimally controlled by performing induced voltage control, and the rotational driving force and regenerative braking force are used for the induced voltage control. The control device 124 displaces the first rotor 132 and the second rotor 133 in the rotational direction with respect to the third rotor 134 when the induced voltage appearing in the armature coil 19 becomes larger than a predetermined value. The induction voltage is decreased by increasing the circumferential interval between the rotor 132 and the second rotor 133 and between the second rotor 133 and the third rotor 134, and the power supply voltage with respect to the induced voltage can be driven at high speed. Increase the margin.

  That is, while the drive current is supplied from the drive circuit 125 to the armature coil 19 to increase the speed of the rotor, the increase in the rotation speed of the output 123 is continued and the induced voltage appearing in the armature coil 19 becomes a predetermined value. The exciting circuit 126 controls the exciting current to the exciting coil 13g to control the force pressing the movable clutch plate 13a against the clutch plate 139, and the first rotor 132 and the second rotor 133 are rotated with respect to the third rotor 134. Displace in the direction. Displacement control of the first rotor 132 and the second rotor 133 stops at a position where the circumferential interval between the first rotor 132 and the third rotor 134 reaches 180 degrees in electrical angle.

  The controller 124 resumes the displacement control of the displacement rotor when the rotational speed becomes lower than a predetermined value. When the induced voltage appearing in the armature coil 19 becomes smaller than a predetermined value, the first rotor 132, The two rotors 133 are displaced with respect to the third rotor 134 in the direction opposite to the rotation direction to increase the induced voltage and increase the torque for driving the rotors. That is, while the rotor is decelerated by regenerative braking, the rotational speed of the output 123 is continuously reduced, and the exciting current is controlled by the exciting coil 13g by the exciting circuit 126 so that the induced voltage appearing in the armature coil 19 becomes a predetermined value. Thus, the force pressing the movable clutch plate 13a against the clutch plate 139 is controlled, and the first rotor 132 and the second rotor 133 are displaced relative to the third rotor 134 in the direction opposite to the rotational direction.

  In the present embodiment, the first rotor 132 and the second rotor 133 are displaced by the rotational driving force or the regenerative braking force, but the regenerative braking force is not sufficient at a low rotational speed, and even if the rotation stops. The displacement rotor may not return to the reference position. In that case, the rotation shaft 11 is constrained to be difficult to rotate, and a drive current is supplied to the armature coil 19 so that the first rotor 132 and the second rotor 133 are rotationally driven in the reference position direction. Thus, the exciting current is controlled by the exciting coil 13g so as to loosen the force pressing the movable clutch plate 13a against the clutch plate 139, and the first rotor 132 and the second rotor 133 are displaced.

  In this embodiment, the pressing force of the movable clutch plate 13a is controlled to cause the movable clutch plate 13a and the clutch plate 139 to slide with each other, and the rotational drive transmitted between the movable clutch plate 13a and the clutch plate 139. The force or regenerative braking force is distributed to the displacement force of the first rotor 132 and the second rotor 133. The opposing surfaces of the movable clutch plate 13a and the clutch plate 139 are configured to have concave and convex shapes that engage each other, and the states of FIGS. 17 and 18 are alternately repeated, and the duration ratios of FIGS. 17 and 18 are controlled. A method in which the displacement force of the first rotor 132 and the second rotor 133 is controlled is also possible.

  A vehicle system according to the present invention will be described as a third embodiment with reference to FIGS. 19 and 1. The rotating electrical machine apparatus described in the first embodiment is mounted as a driving apparatus, and the driving force of the vehicle is smoothly controlled from a low speed to a high speed.

  FIG. 19 is a block diagram showing a vehicle drive system. Reference numeral 191 denotes a rotating electrical machine apparatus described in the first embodiment, reference numeral 192 denotes an actuator for rotating the worm gear 1s, reference numeral 193 denotes a battery, 194 is a control device for the vehicle drive system, 195 is a drive circuit for supplying a drive current to the rotating electrical machine 191, 196 is a control circuit for the actuator 192, and 197 is a sense amplifier for generating a vehicle speed signal. , 198 indicates a wheel.

  The control device 194 monitors the output of the sense amplifier 197. When the induced voltage appearing in the armature 19 becomes larger than a predetermined value, the first rotor 14 and the second rotor 15 are connected to the third rotor 16. Displacement in the direction of rotation, increasing the circumferential distance between the first rotor 14 and the second rotor 15 and between the second rotor 15 and the third rotor 16 to reduce the induced voltage, and further driving at high speed rotation Control is performed so that the induced voltage always remains at a predetermined value as much as possible.

  That is, while the drive circuit 195 supplies a drive current to the armature coil 19 to increase the speed of the vehicle, the rotation speed is continuously increased and the actuator 192 is rotationally driven from the control circuit 196 so that the induced voltage becomes a predetermined value. Thus, the rotation speed of rotating the second ring gear 1m in the direction opposite to the rotation direction of the rotor is controlled, and the first rotor 14 and the second rotor 15 are displaced in the rotation direction with respect to the third rotor 16. .

  The control device 194 monitors the output of the sense amplifier 197. When the induced voltage becomes smaller than a predetermined value, the first rotor 14 and the second rotor 15 are opposite to the rotation direction with respect to the third rotor 16. The induced voltage is increased by displacement in the direction, and the torque for driving the rotor is increased while the induced voltage is always kept at a predetermined value. That is, while the vehicle is decelerated by regenerative braking, the rotation speed continues to decrease, and the actuator 192 is rotated from the control circuit 196 so that the induced voltage appearing in the armature coil 19 becomes a predetermined value. The rotational speed at which the rotor is rotated in the rotational direction is controlled, and the first rotor 14 and the second rotor 15 are displaced relative to the third rotor 16 in the direction opposite to the rotational direction.

  According to the present embodiment, as described above, a part of the driving force is used during the acceleration of the vehicle, and a part of the regenerative braking force is used during the deceleration of the vehicle by the regenerative braking. The rotor 14 and the second rotor 15 are displaced with respect to the third rotor 16. Since the actuator 192 can have a small output, the vehicle drive system is reduced in weight, and the rotation speed region control of the rotating electrical machine is continuously performed, so that the vehicle drive force is smoothly controlled over the entire speed range.

  As described above, the rotating electrical machine system and the vehicle driving method of the present invention have been described with reference to the embodiments. These examples show examples of realizing the gist and purpose of the present invention, and do not limit the scope of the present invention. For example, it is a matter of course that a rotating electrical machine apparatus that realizes the gist of the present invention can be configured by changing the combination of the magnetic pole configuration of the rotor and the configuration of the armature in the above-described embodiment.

Claims (12)

A housing, an armature in which a plurality of armature coils are arranged in a circumferential direction, and a rotor in which a plurality of magnetic salient poles are arranged in a circumferential direction, the rotor being interposed between the armature and a minute gap A rotating electrical machine apparatus configured to be opposed to each other in a radial direction and to be rotatable together with a rotating shaft, wherein the rotor has three rotors having the same number of magnetic salient poles arranged in the axial direction to face the armature. At least the rotors at both shaft ends are magnetized, one shaft end side rotor is fixed to the rotating shaft as a fixed rotor, and the intermediate rotor and the other shaft end side rotor are fixed rotors as displacement rotors. The two rotors are displaced in the circumferential direction opposite to the intermediate rotor when one of the two displacement rotors is displaced in the circumferential direction. Three rotors are mechanically coupled for relative displacement and further rotated Position control means, and when the induced voltage is larger than a predetermined value, the rotor position control means increases the amount of displacement for displacing the displacement rotor in the circumferential direction preceding the rotation direction with respect to the fixed rotor. The rotation is characterized in that the induced voltage is decreased, and when the induced voltage is smaller than a predetermined value, the rotor position control means reduces the displacement amount to increase the induced voltage and optimally controls the rotational force. Electric system 2. The rotating electrical machine system according to claim 1, wherein the rotor is driven to rotate by switching the polarity of the drive current based on the relative positional relationship between the armature coil and the intermediate rotor. 2. The rotating electrical machine system according to claim 1, further comprising a mechanical stopper for limiting a displacement amount of the displacement rotor so that the induced voltage suppression ratio remains within a predetermined range. 2. The rotating electrical machine system according to claim 1, wherein the rotor position control means relaxes the force that restrains the displacement rotor on the rotation shaft while accelerating the rotor, and uses the rotational driving force to displace the displacement rotor. While the rotor is decelerated by regenerative braking, the rotor position control means loosens the force that restrains the displacement rotor on the rotating shaft, and uses the regenerative braking force to reduce the displacement of the displacement rotor. And the rotating electrical machine system is characterized in that the induced voltage is controlled to a predetermined value.
2. The rotating electrical machine system according to claim 1, wherein the rotor position control means includes a first planetary gear mechanism, a second planetary gear mechanism, and an actuator, and the first planetary gear mechanism is fixed to the rotating shaft. One sun gear, a first ring gear fixed to the housing, a first sun gear, a first planetary gear meshing with the first ring gear, and a planetary gear support shaft. A second sun gear fixed to one of the displacement rotors, a second ring gear rotatably disposed by an actuator, a second sun gear, a second planetary gear meshing with the second ring gear, and a planetary gear support shaft. The planetary gear support shaft is shared by the first planetary gear mechanism and the second planetary gear mechanism, and the actuator arranged on the housing side moves the second ring gear in the circumferential direction. The rotary electric machine system position is allowed to displace the rotor is characterized in that is displaced in the circumferential direction with respect to the rotation axis 6. The rotating electrical machine system according to claim 5, wherein the rotor position control means rotates the second ring gear in the circumferential direction so that the second sun gear rotates faster than the first sun gear while the rotor is accelerated. The amount of displacement of the displacement rotor is increased using the rotational driving force, and the rotor position control means moves the second sun gear in a direction that causes the second sun gear to rotate slower than the first sun gear while the rotor is decelerated by regenerative braking. A rotating electrical machine system characterized by controlling the rotational speed of rotating the two ring gears in the circumferential direction and using the regenerative braking force to reduce the displacement of the displacement rotor
2. The rotating electrical machine system according to claim 1, wherein the rotor position control means includes a first planetary gear mechanism, a second planetary gear mechanism, and a clutch mechanism, and the first planetary gear mechanism is fixed to the rotating shaft. The first sun gear, the first ring gear fixed to the housing, the first sun gear, the first planetary gear meshing with the first ring gear, and the planetary gear support shaft. The second sun gear fixed to one of the two displacement rotors, the second ring gear rotatably disposed in the housing, the second sun gear and the second planetary gear meshing with the second ring gear, the planetary gear support shaft The planetary gear support shaft is shared by the first planetary gear mechanism and the second planetary gear mechanism, and the clutch mechanism is configured so that the second ring gear can be restrained by the housing, and the rotor is accelerated. The clutch mechanism is controlled in the direction to loosen the force that restrains the second ring gear to the housing, the displacement of the displacement rotor is increased by using the rotational driving force, and the clutch mechanism is operated while the rotor is decelerated by regenerative braking. A rotating electrical machine system characterized in that the displacement of the displacement rotor is reduced by using a regenerative braking force, controlled in the direction to loosen the force that restrains the second ring gear to the housing 2. The rotating electrical machine system according to claim 1, wherein the rotor position control means includes a clutch mechanism, and the clutch mechanism is configured such that one of the two displacement rotors can be constrained to the rotating shaft, and the number of rotors is increased. During the speed, the clutch mechanism is controlled in the direction to loosen the force that restrains the displacement rotor on the rotating shaft, the displacement of the displacement rotor is increased by using the rotational driving force, and the rotor is clutched during deceleration by regenerative braking. The mechanism is controlled in a direction to loosen the force that restrains the displacement rotor on the rotating shaft, and the amount of displacement of the displacement rotor is reduced by using the regenerative braking force. 2. The rotating electrical machine system according to claim 1, wherein the rotors at both shaft ends are configured so that reluctance torque does not easily exist with uniform magnetic resistance along the circumferential direction of the rotor peripheral portion facing the armature. Rotating electrical machine system characterized by The armature includes a plurality of armature coils arranged in the circumferential direction and a rotor arranged with a plurality of magnetic salient poles arranged in the circumferential direction. The rotor is arranged in the radial direction via the armature and a minute gap. A method for controlling an induced voltage induced in an armature coil of a rotating electrical machine device that is opposed and rotatable, wherein the rotor includes three rotors having the same number of magnetic salient poles arranged in an axial direction. Opposite the armature and at least the rotors at both shaft ends have a magnet excitation structure, one shaft end rotor is fixed to the rotating shaft as a fixed rotor, and the intermediate rotor and the other shaft end rotor are The displacement rotor is configured to be displaceable in the same circumferential direction with respect to the fixed rotor, and the two rotors at the shaft end with respect to the intermediate rotor, regardless of which of the two displacement rotors is displaced in the circumferential direction 3 rotors are mechanically coupled so that their relative displacements in opposite circumferential directions And a first planetary gear mechanism having a first sun gear disposed on the stationary rotor, a first ring gear fixed to the housing, a first sun gear, and a first planetary gear meshing with the first ring gear, A second planetary gear having a second sun gear disposed on one of the two displacement rotors, a second ring gear disposed rotatably by an actuator, a second sun gear and a second planetary gear meshing with the second ring gear It has a gear mechanism, and the first planetary gear and the second planetary gear are configured to have a common planetary gear support shaft. The displacement rotor is moved relative to the fixed rotor by controlling the rotation speed of the second ring gear that is rotated in the direction opposite to the rotation direction of the rotor by the actuator so as to have a predetermined value. Displacement in the rotation direction, while continuing to decrease the rotation speed while decelerating the rotor by regenerative braking, control the rotation speed to rotate the second ring gear in the rotation direction of the rotor by the actuator so that the induced voltage becomes a predetermined value And an induced voltage control method characterized in that the displacement rotor is displaced relative to the stationary rotor in the direction opposite to the rotation direction.
The armature includes a plurality of armature coils arranged in the circumferential direction and a rotor arranged with a plurality of magnetic salient poles arranged in the circumferential direction. The rotor is arranged in the radial direction via the armature and a minute gap. A rotating force control method for a rotating electrical machine apparatus that is opposed and rotatable, wherein the rotor has three rotors having the same number of magnetic salient poles arranged in an axial direction to face the armature and at least The rotors at both shaft ends have a magnet excitation structure, one shaft end side rotor is fixed to the rotating shaft as a fixed rotor, and the intermediate rotor and the other shaft end side rotor are fixed rotors as displacement rotors. The two rotors at the shaft end are in the opposite circumferential direction relative to the intermediate rotor regardless of which of the two displacement rotors is displaced in the circumferential direction. A rotor that mechanically couples three rotors so as to be displaced relative to each other and faces the armature The rotors at both shaft ends are configured so that the reluctance torque does not easily exist with the magnetic resistance along the circumferential direction uniform, and the magnetic resistance along the circumferential direction is periodically changed at the peripheral edge of the rotor facing the armature. An intermediate rotor is constructed so that reluctance torque can be obtained, the displacement of the displacement rotor is increased, the induced voltage is decreased, the margin of the power supply voltage with respect to the induced voltage is increased, and the displacement of the displacement rotor is increased. Rotational force control method characterized by controlling rotational force optimally by increasing the rotational driving force generated by increasing the induced voltage by reducing the pressure Three rotors with the same number of magnetic salient poles are arranged in the axial direction so as to face the armature, and at least the rotors at both shaft ends have a magnet excitation structure, and one shaft end rotor is rotated as a fixed rotor. It is fixed to the shaft, and the intermediate rotor and the other shaft end side rotor are used as displacement rotors so that they can be displaced in the same circumferential direction with respect to the fixed rotor. The three rotors are mechanically coupled so that the two rotors at the shaft end are displaced relative to each other in the opposite circumferential direction with respect to the intermediate rotor, and the displacement rotor is constrained to the rotation shaft. A method for controlling a driving force of a vehicle using a rotating electrical machine system having a means for performing a driving operation to obtain the displacement force of the displacement rotor and the driving force of the vehicle from the rotational driving force while the vehicle is accelerated. By controlling the force constrained to the rotating shaft, the displacement of the displacement rotor is increased. Force that restrains the displacement rotor to the rotating shaft so as to obtain the displacement force of the displacement rotor and the deceleration driving force of the vehicle while the induced voltage is controlled to a predetermined value with respect to the power supply voltage and the vehicle is decelerated by regenerative braking. To control the driving force of the vehicle smoothly by controlling the motor so that the displacement of the displacement rotor is reduced so that the induced voltage becomes a predetermined value with respect to the power supply voltage.

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