CN107181434A - Electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage - Google Patents
Electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage Download PDFInfo
- Publication number
- CN107181434A CN107181434A CN201710360743.3A CN201710360743A CN107181434A CN 107181434 A CN107181434 A CN 107181434A CN 201710360743 A CN201710360743 A CN 201710360743A CN 107181434 A CN107181434 A CN 107181434A
- Authority
- CN
- China
- Prior art keywords
- power semiconductor
- voltage
- energy storage
- discharge
- recharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims abstract description 122
- 238000004146 energy storage Methods 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage, including energy storage device, high tension battery, in addition to the first power semiconductor, the second power semiconductor, the 3rd power semiconductor, the 4th power semiconductor, the 5th power semiconductor, the 6th power semiconductor, the 7th power semiconductor, the 8th power semiconductor and control processor.The structure setting of the present invention is reasonable, it realizes direct current to direct current bi-directional conversion, so as to reduce alternating current this intermediate link, to a certain extent can effectively high charge-discharge efficiencies, the function of discharging DC load can be also realized simultaneously, and stability in use is good, while while " bidirectional, dc discharge and recharge ", " variable DC voltage " can also be realized to improve the overall efficiency of motor and the performance of vehicle, strong applicability and practicality is good.
Description
Technical field
The invention belongs to electric automobile, automobile motor control technology field, and in particular to one kind has bidirectional, dc charge and discharge
The electric machine controller of electricity and variable DC voltage.
Background technology
With the development of electric automobile (especially pure electric automobile), the functional requirement increasingly diversification of vehicle.Car pair
Car discharge and recharge and car become a big demand of electric automobile to load discharge.Existing technical scheme is mostly will by equipment
The direct current of vehicle is converted to alternating current (DC/AC changes), then by AC conversion is direct current (AC/DC changes) so as to realize
Vehicle-to-vehicle discharge and recharge, influences the efficiency of discharge and recharge, at the same time, electric automobile (especially pure electric automobile) to a certain extent
Generally using motor system (general designation of electric machine controller and motor) plus the technical scheme of single reduction gear.Single reduction gear
Gearratio fix, vehicle run during can not change, thus, (dynamic property contains up to car to power performance demand
Speed, grade climbing performance, acceleration etc.) directly determine the lasting moment of torsion of motor system, peak torque, rated speed, most
The parameters such as high workload rotating speed, rated power, peak power.(dc bus of electric machine controller is also referred to as in fixed DC voltage
Voltage) under platform, it can not often realize that the optimized working zone domain (efficiency > 85%) of motor is completely covered it and made in vehicle
Conventional working region in, causes in actual use, and the overall efficiency of motor system is not high.So applicability and reality
It is restricted with property.
The content of the invention
There is bidirectional, dc discharge and recharge it is an object of the invention to provide a kind of structure setting is reasonable and stability in use is good
With the electric machine controller of variable DC voltage.
The technical scheme for realizing the object of the invention is a kind of motor with bidirectional, dc discharge and recharge and variable DC voltage
Controller, including energy storage device, high tension battery, in addition to the first power semiconductor, the second power semiconductor,
Three power semiconductors, the 4th power semiconductor, the 5th power semiconductor, the 6th power semiconductor,
Seven power semiconductors, the 8th power semiconductor and control processor, the 3rd power semiconductor with it is described
The two ends of energy storage device, the 5th power semiconductor and the described 6th are connected in parallel on after the series connection of 4th power semiconductor
The two ends of energy storage device, the 7th power semiconductor and the 8th power are connected in parallel on after power semiconductor series connection
Be connected in parallel on the two ends of energy storage device after semiconductor devices series connection, the U of three-phase output be connected the 3rd power semiconductor with
On the tie point of 4th power semiconductor, the V of three-phase output is connected in the 5th power semiconductor and the 6th power
On the tie point of semiconductor devices, the W of three-phase output is connected in the 7th power semiconductor and the 8th power semiconductor device
On the tie point of part, the positive pole of the high tension battery is connected on the positive pole of energy storage device by the second power semiconductor
And the negative pole of high tension battery is connected on the negative pole of energy storage equipment by the first power semiconductor, first power half
Conductor device, the second power semiconductor, the 3rd power semiconductor, the 4th power semiconductor, the 5th power half
Conductor device, the 6th power semiconductor, the 7th power semiconductor, the 8th power semiconductor control end with
Control processor is connected.
Also include the first voltage sensor, current sensor and the second electricity being connected with control processor signal input part
Pressure sensor, the first voltage sensor parallel is at the two ends of high tension battery, and the second voltage sensor parallel is in storage
Can the two ends of device and one end of the current sensor be connected to the positive pole and the second power semiconductor of high tension battery
Tie point on, the other end is connected on the tie point of the first power semiconductor and energy storage device negative pole.
First power semiconductor, the second power semiconductor, the 3rd power semiconductor, the 4th power
Semiconductor devices, the 5th power semiconductor, the 6th power semiconductor, the 7th power semiconductor, the 8th power
Semiconductor devices is IGBT pipes or MOSFET.
The first electric capacity is parallel with the two ends of the first voltage sensor, at the two ends of the second voltage sensor simultaneously
It is associated with the second electric capacity.
The present invention has positive effect:Rationally, it realizes direct current to two-way turn of direct current to the structure setting of the present invention
Change, so as to reduce alternating current this intermediate link, to a certain extent can effectively high charge-discharge efficiencies, while can also realize
The function of discharging DC load, stability in use is good, while while " bidirectional, dc discharge and recharge ", moreover it is possible to realize " variable
DC voltage " is so as to improve the overall efficiency of motor and the performance of vehicle, strong applicability and practicality is good.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail, wherein:
Fig. 1 is structural representation of the invention.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present invention, and wherein Fig. 1 is structural representation of the invention.
See Fig. 1, a kind of electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage, including energy storage device,
High tension battery, in addition to the first power semiconductor S1, the second power semiconductor S2, the 3rd power semiconductor
S3, the 4th power semiconductor S4, the 5th power semiconductor S5, the 6th power semiconductor S6, the 7th power half
Conductor device S7, the 8th power semiconductor S8 and control processor (are not drawn into, but have no effect on the understanding of technical staff
With realizing), the 3rd power semiconductor S3 is connected in parallel on energy storage dress after being connected with the 4th power semiconductor S4
The two ends put, the 5th power semiconductor S5 is connected in parallel on energy storage dress after being connected with the 6th power semiconductor S6
The two ends put, the 7th power semiconductor S7 is connected in parallel on energy storage dress after being connected with the 8th power semiconductor S8
The two ends put, the connection that the U that three-phase is exported is connected in the 3rd power semiconductor S3 and the 4th power semiconductor S4
On point, the V of three-phase output is connected on the 5th power semiconductor S5 and the 6th power semiconductor S6 tie point,
The W of three-phase output is connected on the 7th power semiconductor S7 and the 8th power semiconductor S8 tie point, described
The positive pole of high tension battery is connected on the positive pole of energy storage device by the second power semiconductor S2 and high tension battery
Negative pole is connected on the negative pole of energy storage equipment by the first power semiconductor S1, the first power semiconductor S1,
Second power semiconductor S2, the 3rd power semiconductor S3, the 4th power semiconductor S4, the 5th power semiconductor
Device S5, the 6th power semiconductor S6, the 7th power semiconductor S7, the 8th power semiconductor S8 control end
It is connected with control processor.
Also include the first voltage sensor V1, the current sensor A that are connected with control processor signal input part and the
Two voltage sensor V2, the first voltage sensor parallel is at the two ends of high tension battery, and the second voltage sensor is simultaneously
It is associated in the two ends of energy storage device and one end of the current sensor is connected to the positive pole of high tension battery and the second power is partly led
On the tie point of body device, the other end is connected on the tie point of the first power semiconductor and energy storage device negative pole.
First power semiconductor, the second power semiconductor, the 3rd power semiconductor, the 4th power
Semiconductor devices, the 5th power semiconductor, the 6th power semiconductor, the 7th power semiconductor, the 8th power
Semiconductor devices is IGBT pipes or MOSFET.
The first electric capacity C1 is parallel with the two ends of the first voltage sensor, the two of the second voltage sensor C2
End is parallel with the second electric capacity.
Its control principle is summarized as follows:
1) Bidirectional charging-discharging function
A. discharging function
S2 is in " shut-off " state all the time, by Duty ratio control S1 turn-on and turn-off, so as to realize high voltage electric storage
The electric energy transfer in pond is to energy-storage system, i.e., function of " discharging ".
UEnergy-storage system∶UHigh tension battery=a: (1-a)
A is S1 conducting dutycycles.
When S1 is opened, controller DC voltage is to induction charging;
When S1 disconnects, inductance is by S2 anti-parallel diodes to load discharge;
B. charge function
S1 is in " shut-off " state all the time, by Duty ratio control S2 turn-on and turn-off, so as to realize energy-storage system
Electric energy transfer to high tension battery, i.e., function of " discharging ".
UHigh tension battery∶UEnergy-storage system=a: (1-a)
A is S2 conducting dutycycles.
When S2 is opened, controller DC voltage is to induction charging;
When S2 disconnects, inductance is by S2 anti-parallel diodes to load discharge;
2) variable voltage function
S2 is in " shut-off " state all the time, by Duty ratio control S1 turn-on and turn-off, so as to adjust the electricity at C2 two ends
Pressure, i.e. " variable voltage " are realized.
UC2∶UHigh tension battery=a: (1-a)
A is S1 conducting dutycycles.As a > 50%, the voltage at C2 two ends is higher than the voltage of high tension battery.
When S1 is opened, controller DC voltage is to induction charging;
When S1 disconnects, inductance is by S2 anti-parallel diodes to load discharge;
The present invention structure setting rationally, it realizes direct current to direct current bi-directional conversion, thus reduce alternating current this
One intermediate link, to a certain extent can effectively high charge-discharge efficiencies, while can also realize the function of discharging DC load,
Stability in use is good, while while " bidirectional, dc discharge and recharge ", moreover it is possible to realize " variable DC voltage " to improve
The overall efficiency of motor and the performance of vehicle, strong applicability and practicality is good.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And these
The obvious changes or variations that the connotation for belonging to of the invention is extended out still falls within protection scope of the present invention.
Claims (4)
1. a kind of electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage, including energy storage device, high voltage electric storage
Pond, it is characterised in that:Also include the first power semiconductor, the second power semiconductor, the 3rd power semiconductor,
4th power semiconductor, the 5th power semiconductor, the 6th power semiconductor, the 7th power semiconductor,
8th power semiconductor and control processor, the 3rd power semiconductor and the 4th power semiconductor
The two ends of energy storage device are connected in parallel on after series connection, the 5th power semiconductor is connected with the 6th power semiconductor
Be connected in parallel on the two ends of energy storage device afterwards, the 7th power semiconductor connected with the 8th power semiconductor after simultaneously
The two ends of energy storage device are associated in, the U of three-phase output is connected in the 3rd power semiconductor and the 4th power semiconductor
Tie point on, the tie points that are connected in the 5th power semiconductor and the 6th power semiconductor of V of three-phase output
On, the W of three-phase output is connected on the tie point of the 7th power semiconductor and the 8th power semiconductor, the height
Press the positive pole of battery be connected to by the second power semiconductor on the positive pole of energy storage device and high tension battery negative pole
It is connected to by the first power semiconductor on the negative pole of energy storage equipment, first power semiconductor, the second power
Semiconductor devices, the 3rd power semiconductor, the 4th power semiconductor, the 5th power semiconductor, the 6th power
Semiconductor devices, the 7th power semiconductor, the control end of the 8th power semiconductor are connected with control processor.
2. the electric machine controller according to claim 1 with bidirectional, dc discharge and recharge and variable DC voltage, its feature
It is:Also include first voltage sensor, current sensor and the second voltage being connected with control processor signal input part
Sensor, the first voltage sensor parallel is at the two ends of high tension battery, and the second voltage sensor parallel is in energy storage
The two ends of device and one end of the current sensor are connected to the positive pole and the second power semiconductor of high tension battery
On tie point, the other end is connected on the tie point of the first power semiconductor and energy storage device negative pole.
3. the electric machine controller according to claim 2 with bidirectional, dc discharge and recharge and variable DC voltage, its feature
It is:First power semiconductor, the second power semiconductor, the 3rd power semiconductor, the 4th power half
Conductor device, the 5th power semiconductor, the 6th power semiconductor, the 7th power semiconductor, the 8th power half
Conductor device is IGBT pipes or MOSFET.
4. the electric machine controller according to claim 3 with bidirectional, dc discharge and recharge and variable DC voltage, its feature
It is:The first electric capacity is parallel with the two ends of the first voltage sensor, it is in parallel at the two ends of the second voltage sensor
There is the second electric capacity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710360743.3A CN107181434A (en) | 2017-05-19 | 2017-05-19 | Electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage |
Applications Claiming Priority (1)
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CN201710360743.3A CN107181434A (en) | 2017-05-19 | 2017-05-19 | Electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage |
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CN107181434A true CN107181434A (en) | 2017-09-19 |
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CN201710360743.3A Pending CN107181434A (en) | 2017-05-19 | 2017-05-19 | Electric machine controller with bidirectional, dc discharge and recharge and variable DC voltage |
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---|---|---|---|---|
DE4123105A1 (en) * | 1991-07-09 | 1993-01-14 | Brose Fahrzeugteile | Power regulation system for electrical lead e.g. motor - monitors supply voltage to power control device for adjusting pulse width modulation power regulation |
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-
2017
- 2017-05-19 CN CN201710360743.3A patent/CN107181434A/en active Pending
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DE4123105A1 (en) * | 1991-07-09 | 1993-01-14 | Brose Fahrzeugteile | Power regulation system for electrical lead e.g. motor - monitors supply voltage to power control device for adjusting pulse width modulation power regulation |
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Application publication date: 20170919 |