CN103368338A - Motor wire-connection detection circuit based on terminal voltage, and realization method for same - Google Patents
Motor wire-connection detection circuit based on terminal voltage, and realization method for same Download PDFInfo
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- CN103368338A CN103368338A CN2013103237870A CN201310323787A CN103368338A CN 103368338 A CN103368338 A CN 103368338A CN 2013103237870 A CN2013103237870 A CN 2013103237870A CN 201310323787 A CN201310323787 A CN 201310323787A CN 103368338 A CN103368338 A CN 103368338A
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Abstract
The invention relates to a motor wire-connection detection circuit based on a terminal voltage, and a realization method for the same. The motor wire-connection detection circuit comprises a motor winding, and power devices located in a motor controller, wherein two power devices are serially connected with one branch circuit; a point between the two power devices on one branch circuit is connected with a one-phase motor winding; a certain power device on one branch circuit in the motor controller is only conducted in a unit time; the value of the voltage of a corresponding motor end is detected by cooperating the conduction of the power devices to detect whether the connection between a motor and a driver is correct and reliable, and a phase having a wire-connection fault can be judged by virtue of the state of the terminal voltage in various electrifying conditions. According to the motor wire-connection detection circuit based on the terminal voltage and the realization method for the same, disclosed by the invention, whether the connection between the motor and the driver is correct and reliable can be conveniently detected; simultaneously, the phase having the wire-connection fault can be judged by virtue of the state of the terminal voltage in the various electrifying conditions, thus providing a basis for a user to eliminate problems and realize the wire connection.
Description
Technical field
The present invention relates to the wiring detection technique field of motor, what be specifically related to is a kind of motor wiring testing circuit and its implementation based on terminal voltage.
Background technology
Motor is widely used in industry-by-industry as typical actuator, in order to realize that the function motors such as frequency control are typically equipped with special-purpose driver and drive operation, Fig. 1 is the typical connection layout of motor and driver, among the figure N be the number of phases of motor be generally 2 and 3, ETH be earth terminal.In actual applications, (earth connection is connected when motor lines) might occur because installation personnel error misconnection, miss the reasons such as (not connecting certain root motor lines) or connection cable disconnection and cause bad connection, if this moment, driver powered on directly that operation will produce the driver overcurrent, motor is locked or the abnormal conditions such as shake, bring certain harm for normal production and application.
Summary of the invention
For the deficiency that exists on the prior art, the invention provides a kind of convenient whether correct motor wiring testing circuit based on terminal voltage that is connected that detects motor and driver;
And realization is based on the method for the motor wiring testing circuit of terminal voltage.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of motor wiring testing circuit based on terminal voltage comprises the motor winding and is positioned at the power device of electric machine controller, is in series with two power devices on the branch road, and the point on the described branch road between two power devices is connected with a phase motor winding.
In order better to realize above-mentioned summary of the invention, further technical scheme is:
According to one embodiment of present invention, described upper power device or lower power device are metal-oxide-semiconductor.
According to one embodiment of present invention, described upper power device or lower power device are the IGBT pipe.
According to one embodiment of present invention, the two-phase induction motor that described motor is, the testing circuit that is attached thereto are two-way.
According to one embodiment of present invention, the three phase electric machine that described motor is, the testing circuit that is attached thereto are three the tunnel.
The present invention can also be:
According to one embodiment of present invention, a kind of implementation method of the motor wiring testing circuit based on terminal voltage:
Within the unit interval, only allow in the electric machine controller certain power device conducting on the branch road, whether the value of the corresponding motor terminal voltage of conduction detection of cooperation power device reaches the detection motor correct reliable with being connected of driver, and also can judge the wiring faults which occurs mutually by the state of terminal voltage in each energising situation.
Compared with prior art, the invention has the beneficial effects as follows:
Motor wiring testing circuit and its implementation based on terminal voltage of the present invention, whether convenient detection motor is correct reliable with being connected of driver, also can judge the wiring faults which occurs mutually by the state of terminal voltage in each energising situation simultaneously, for the wiring of user's queueing problem provides foundation; Thereby avoided in actual applications, (earth connection is connected when motor lines) might occur because installation personnel error misconnection, miss the reasons such as (not connecting certain root motor lines) or connection cable disconnection and cause bad connection, the abnormal conditions such as the locked or shake of driver overcurrent, the motor that causes and the harm that brings.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the typical connection diagram of motor and driver.
Fig. 2 is motor and drive circuit schematic diagram.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
A kind of motor wiring testing circuit based on terminal voltage, comprise motor winding and the power device that is positioned at electric machine controller, article one, be in series with two power devices on the branch road, it is characterized in that, the point on the described branch road between two power devices is connected with a phase motor winding.Particularly, as shown in Figure 2, here power device 1H and 1L ... NH and NL are the inner existing hardware resources of electric machine controller, realize that the control 2 phase motors of motor just need to have two groups of such power devices, and 3 phase motors just need 3 groups of such power devices.The point that the in fact namely power device XH that we need to detect is connected with XL now mainly is to have adopted special control mode to realize that wiring detects to existing resource with the connection of the X winding of motor.
Wherein, described upper power device, lower power device can be metal-oxide-semiconductor, IGBT or IPM etc.
Fig. 1 is the typical connection diagram of motor and driver.Particularly, a kind of motor wiring testing circuit based on terminal voltage is as shown in Figure 1 controlled corresponding power device (MOS or IGBT) break-make by certain control law and is come to power up to control the motor operation to motor coil.The direct drive circuit that utilizes motor here, used a kind of new step mode, only allow within the unit interval certain pipe XH(X is 1,2...N) or lower pipe XL(X is 1,2...N) conducting, cooperate the value of the corresponding motor terminal voltage of conduction detection (1,2...N) of energising pipe to reach to detect the correct reliable purpose that whether is connected of motor and driver, also can judge the wiring faults which occurs mutually by the state of terminal voltage in each energising situation simultaneously, for the wiring of user's queueing problem provides foundation.
One embodiment of the present of invention relate to a kind of motor Wiring detection method based on terminal voltage, this detection method is used the power device (metal-oxide-semiconductor of the step mode control drive motors of certain rule, IGBT or IPM) conducting, whether and it is correct reliable with being connected of driver to detect motor by the terminal voltage that detects motor, as within the unit interval, only allowing power device or lower power device conducting on certain, whether the value of the corresponding motor terminal voltage of conduction detection of cooperation energising pipe reaches the detection motor correct reliable with being connected of driver, and also can judge the wiring faults which occurs mutually by the state of terminal voltage in each energising situation; It can be applicable to various motors such as AC induction motor, dc brushless motor and permagnetic synchronous motor etc.The method only needs a small amount of hardware resource can realize that wiring detects, and can judge it is which phase connection fault, is convenient to the user and checks wiring, has improved the reliability of system.
When two-phase induction motor that motor is, the testing circuit that is attached thereto is two-way.
When the three phase electric machine that motor is, the testing circuit that is attached thereto is three the tunnel.
Be simplified illustration, get N=3, star-like connection motor is that example illustrates embodiment, neither loses generality and is convenient to again say something.
1, is that the value of Vbus is chosen suitable divider resistance according to the electric pressure of system, realizes motor side 1,2,3 voltage detecting, also guaranteed the potential value of motor terminal voltage under initial condition simultaneously;
2,1H and 1L control
Control 1H conducting, when other turn-offed, as can be seen from Figure 2, this moment, motor side 1 was connected to Vbus by power device 1H, and motor side 2 connects by inner with being connected, voltage also is Vbus; Control 1L conducting, when other turn-offed, as can be seen from Figure 2, this moment, motor side 1 was connected to ground by power device 1L, and motor side 2 connects by inner with being connected, voltage also arrives ground.Be voltage that the situation of Vbus calls 1, represent 0 or 1 situation for the situation on ground is called 0, x, such as following table 1:
3,2H and 2L and 3H and 3L control
In like manner can get state such as following table 2 under the both of these case.
For the bad or wrong situation of arbitrary motor lines wiring, all can judge in conjunction with 2 top tables by above-mentioned step mode.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. motor wiring testing circuit based on terminal voltage, comprise motor winding and the power device that is positioned at electric machine controller, article one, be in series with two power devices on the branch road, it is characterized in that, the point on the described branch road between two power devices is connected with a phase motor winding.
2. the motor wiring testing circuit based on terminal voltage according to claim 1 is characterized in that, described upper power device or lower power device are metal-oxide-semiconductor.
3. the motor wiring testing circuit based on terminal voltage according to claim 1 is characterized in that, described upper power device or lower power device are the IGBT pipe.
4. according to claim 1 to the described motor wiring testing circuit based on terminal voltage of 3 any one, it is characterized in that the two-phase induction motor that described motor is, the testing circuit that is attached thereto are two-way.
5. according to claim 1 to the described motor wiring testing circuit based on terminal voltage of 3 any one, it is characterized in that, described motor be three phase electric machine, the testing circuit that is attached thereto is three the tunnel.
6. the implementation method of the motor wiring testing circuit based on terminal voltage as claimed in claim 1, it is characterized in that, within the unit interval, only allow in the electric machine controller certain power device conducting on the branch road, whether the value of the corresponding motor terminal voltage of conduction detection of cooperation power device reaches the detection motor correct reliable with being connected of driver, and also can judge the wiring faults which occurs mutually by the state of terminal voltage in each energising situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103237870A CN103368338A (en) | 2013-07-29 | 2013-07-29 | Motor wire-connection detection circuit based on terminal voltage, and realization method for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103237870A CN103368338A (en) | 2013-07-29 | 2013-07-29 | Motor wire-connection detection circuit based on terminal voltage, and realization method for same |
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| CN103368338A true CN103368338A (en) | 2013-10-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182147A (en) * | 2014-06-04 | 2015-12-23 | 罗伯特·博世有限公司 | Device and method for identifying on-and-off of circuit |
| CN105564248A (en) * | 2014-11-04 | 2016-05-11 | 现代自动车株式会社 | Method for detecting interlock failure of connector in eco-friendly vehicle |
| CN106597205A (en) * | 2016-11-08 | 2017-04-26 | 珠海格力电器股份有限公司 | Brushless motor wiring state detection method, device and driver |
| CN108459271A (en) * | 2018-02-07 | 2018-08-28 | 福建睿能科技股份有限公司 | The detection method and detection device of two-phase induction motor, the device with store function |
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| CN2192890Y (en) * | 1994-07-18 | 1995-03-22 | 袁明 | Simple motor protection indication alarm device |
| US5446354A (en) * | 1993-09-14 | 1995-08-29 | Kabushiki Kaisha Toshiba | Drive apparatus for brushless DC motor and failure diagnosing method for the same |
| CN102955100A (en) * | 2011-08-18 | 2013-03-06 | 现代摩比斯株式会社 | Device for detecting failure of motor coil in breaking system for vehicle and method thereof |
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2013
- 2013-07-29 CN CN2013103237870A patent/CN103368338A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5446354A (en) * | 1993-09-14 | 1995-08-29 | Kabushiki Kaisha Toshiba | Drive apparatus for brushless DC motor and failure diagnosing method for the same |
| CN2192890Y (en) * | 1994-07-18 | 1995-03-22 | 袁明 | Simple motor protection indication alarm device |
| CN102955100A (en) * | 2011-08-18 | 2013-03-06 | 现代摩比斯株式会社 | Device for detecting failure of motor coil in breaking system for vehicle and method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182147A (en) * | 2014-06-04 | 2015-12-23 | 罗伯特·博世有限公司 | Device and method for identifying on-and-off of circuit |
| CN105182147B (en) * | 2014-06-04 | 2019-10-29 | 罗伯特·博世有限公司 | Identify the identification device and method of the interruption in power supply line |
| CN105564248A (en) * | 2014-11-04 | 2016-05-11 | 现代自动车株式会社 | Method for detecting interlock failure of connector in eco-friendly vehicle |
| CN105564248B (en) * | 2014-11-04 | 2019-04-30 | 现代自动车株式会社 | The method for detecting the interlock fault of connector in environmentally friendly vehicle |
| US10962423B2 (en) | 2014-11-04 | 2021-03-30 | Hyundai Motor Company | Method for detecting interlock failure of connector in eco-friendly vehicle |
| CN106597205A (en) * | 2016-11-08 | 2017-04-26 | 珠海格力电器股份有限公司 | Brushless motor wiring state detection method, device and driver |
| CN106597205B (en) * | 2016-11-08 | 2018-12-18 | 珠海格力电器股份有限公司 | Brushless motor wiring state detection method, device and driver |
| CN108459271A (en) * | 2018-02-07 | 2018-08-28 | 福建睿能科技股份有限公司 | The detection method and detection device of two-phase induction motor, the device with store function |
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Application publication date: 20131023 |