CN105914767A - Electric automobile drive and electric energy conversion control method - Google Patents
Electric automobile drive and electric energy conversion control method Download PDFInfo
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- CN105914767A CN105914767A CN201610445672.2A CN201610445672A CN105914767A CN 105914767 A CN105914767 A CN 105914767A CN 201610445672 A CN201610445672 A CN 201610445672A CN 105914767 A CN105914767 A CN 105914767A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- 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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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- 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
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/45—Special adaptation of control arrangements for generators for motor vehicles, e.g. car alternators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to an electric automobile drive and an electric energy conversion control method. The electric automobile drive comprises electric motor winding control switches S4, S5, S6, a short connection wire, a winding disconnecting electric motor, a state instruction giving system, an energy storage system, a filtering capacitor, filtering capacitor control switches S1, S2, S3, and an electric drive unit, wherein the energy storage system is connected with the electric drive unit via a positive electrode of a bus and a negative electrode of the bus, and the electric drive unit is connected with the winding disconnecting electric motor via three wire cables U, V, W; the winding disconnecting electric motor is connected with three phase wires A, B, C of a power grid via the three wire cables through the electric motor winding control switches S4, S5, S6 and then connecting points P10, P11, P12. The electric automobile drive and the electric energy conversion control method are advantageous in that electric energy conversion can be realized through an electric automobile via use of the drive unit and the electric motor, controllable electric automobile electric motor windings are connected with a drive structure, and therefore switch between an electric automobile driving mode and an electric energy conversion mode can be realized.
Description
Technical field
The invention belongs to utilize electric automobile to carry out energy storage unsteady flow field, particularly relate to a kind of electric automobile and drive and electric energy
Conversion control method.
Background technology
Along with society the attention rate of the energy and environment is improved constantly, electric energy storage and the progress of electric drive technology,
Increasing electric automobile substitutes the convenient trip of transmission automobile.Data show that the annual rate of growth of electric automobile alreadys more than
50%, the numerous electric vehicles with the electric automobile such as electric bus, electronic middle-size and small-size car as representative serve society, family.Right
The time in use having 90% in most electric automobile is in parked state；Meanwhile, substantial amounts of business, do
Public region is when power consumption is big, it is possible that power consumption shortage problem.If the quantity of electric automobile reaches certain scale,
Electric automobile, can be towards little micro-capacitance sensor as the carrier of energy, intelligent grid, participates in the grid balance of local.
Electric automobile, when as the energy-storage travelling wave tube of electrical network, supplements energy as needed for electrical network.Meanwhile, electric automobile drives
Moving cell, for providing power to electric automobile, electric automobile drives module to be made up of electrical automobile driver and motor.How
The maximum drive system utilizing electric automobile self, it is achieved energy storage unsteady flow, is to effectively reduce access electrical network cost, and promoting should
The key of item technological applicability.
Summary of the invention
For overcoming the deficiencies in the prior art, it is an object of the invention to provide a kind of electric automobile and drive and transformation of electrical energy control
Method, it is achieved electric automobile, as the energy-storage travelling wave tube of electrical network, to little micro-capacitance sensor, intelligent grid, participates in the grid balance of local.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of electric automobile drives, and controls switch S4, S5, S6, shorting stub including motor winding, opens winding motor, shape
The given system of state instruction, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive unit；
Energy-storage system by bus just, bus is negative is connected with electric drive unit；Electric drive unit passes through tri-cables of U, V, W
It is connected with opening winding motor；
Open winding motor by three cables through motor winding control switch S4, S5, S6 again by junction point P10,
P11, P12 are connected with triple line A on electrical network, B, C；
Bus just and bus negative between connect and have filter capacitor to control switch S1, S2, S3, filter capacitor, filter capacitor control
System switch S1, S2, S3 are connected with filter capacitor；
Triple line A being connected with electrical network, B, C connect and has voltage and current sensor；Energy-storage system is BMS cell tube
Reason system；Status command system gives electric drive unit running status.
Described disconnection winding motor includes 6 sections of winding L1～L6, wherein winding L1 Yu L4, winding L2 Yu L5, winding
L4 Yu L6 separately constitutes the three-phase windings disconnecting winding motor, and the junction point of two sections of winding L1 is P1 and P4, winding L4's
The junction point of two sections is P4 and P7, and winding L1 and winding L4 points of common connection are P4；The junction point of two sections of winding L2 be P2 and
The junction point of two sections of P5, winding L5 is P5 and P8, and winding L2 and winding L5 points of common connection are P5；The company of two sections of winding L3
Contact is P3 and P6, and the junction point of two sections of winding L6 is P6 and P9, and winding L3 and winding L6 points of common connection are P6.
Status command system gives electric drive unit running status, and running status is divided into eDrive state, transformation of electrical energy shape
State；When being in eDrive state, electric drive unit controls to open winding motor and runs, and motor winding controls switch S4, S5, S6
Switching in shorting stub by the winding opening winding motor, filter capacitor controls switch S1, S2, S3 disconnection simultaneously, makes out winding
Motor junction point P4, P5, P6 disconnect with filter capacitor；When being in transformation of electrical energy state, by open winding motor around
Group and electrical network carry out energy exchange, and motor winding controls switch S4, S5, S6 and the winding opening winding motor is switched to electrical network
On, disconnect the connection with shorting stub；Meanwhile, filter capacitor control switch S1, S2, S3 turn on winding motor junction point P4,
Connection between P5, P6 and filter capacitor so that filter capacitor is connected with opening winding motor junction point P4, P5, P6.
Described voltage and current sensor by voltage and current signal collection to electric drive unit, for transformation of electrical energy shape
Voltage under state and current acquisition.
The signal that described status command system sends is on-off model.
Described electric drive unit includes three-phase inverter bridge circuit, master control borad, driving plate, master control borad, driving plate, three-phase
Bridge inverter main circuit is sequentially connected with, and master control borad is provided with analog quantity/digital-quantity input interface and analog quantity/digital output connects
Mouthful, master control borad is connected with current sensor, and three-phase inverter bridge circuit is connected with driving winding motor current sensor, storage
Can system be connected with three-phase inverter bridge circuit.
A kind of transformation of electrical energy control method, electric drive unit is referred to by bus mode or digital quantity interface State Transferring
Order, the electric drive unit default conditions that power on are eDrive state, and now, motor winding controls switch and is connected with shorting stub, simultaneously
Filter capacitor by filter capacitor switch in parallel bus just and bus negative between, open winding electric machine and be in star access state；
Electric drive unit detection busbar voltage, monitors three-phase current by current sensor, monitors motor rotor position；Prison
Three-phase current, rotor-position and the busbar voltage decoupling three-phase current surveyed are d-axis and quadrature axis current；
Determining torque by monitoring motor rotor position, the given SVPWM space vector pulse width modulation that controls exports, by three
Phase bridge inverter main circuit makes motor output expectation torque, thus controls electric vehicle motion；Described expectation torque is by car
CAN interface receives entire car controller torque instruction；
When automobile is in halted state, electric drive unit allows to switch to transformation of electrical energy state, now electric drive unit
Monitoring simultaneously is positioned at voltage and the current sensor of grid side, and whether detection junction point P10, P11, P12 are connected with electrical network, if
It is connected with electrical network triple line A, B, C, starts to monitor three-phase alternating current piezoelectric voltage；If be in transformation of electrical energy state simultaneously, switching electricity
Machine winding control switch S4, S5, S6, make filter capacitor be linked into out on winding motor junction point P4, P5, P6, by motor around
Group forms LCL filter circuit with filter capacitor, reduces follow-up grid-connected harmonic wave；Simultaneously carry out SVPWM space vector pulse width
Modulation output, SVPWM space vector pulse width modulation output signal simultaneously drives three-phase inverting circuit and controls output voltage, works as output
Voltage-phase, frequency and line voltage, frequency consistent time, filter capacitor controls switch S1, S2, S3 Guan Bi；
Electric drive unit uses droop control mode, the meritorious and reactive power of regulation output；Drive when again receiving electricity
During dynamic status command, reduce active power and reactive power exports to zero；Switch motor winding controls switch S4, S5, S6 and filter
Ripple capacitance controlled switches S1, S2, S3, reenter eDrive state.
Compared with prior art, the invention has the beneficial effects as follows:
The invention discloses motor in electric automobile, driver topological structure and utilize motor in electric automobile and driver to realize
The control method of transformation of electrical energy.Make electric automobile driver element and motor can be utilized to realize the conversion of electric energy, by controlled electricity
Electrical automobile motor winding connects and activation configuration, it is achieved electric automobile drive pattern and the switching of transformation of electrical energy pattern.At electricity
Under driving condition, battery export energy to motor, provide power to electric automobile.Under energy exchange state, utilize electricity
Motivation self winding and driver realize, and the control of electric energy completes the voltage support of electrical network and the charging of battery.Can be not
On the premise of increasing extra inverter and ensureing that power drive system normally works, it is achieved the energy content of battery of electric automobile and electrical network energy
The exchange of amount.Voltage support to electrical network, and utilize electric automobile to form microgrid, it is provided that electric power is significant.
Accompanying drawing explanation
Fig. 1 is eDrive state schematic diagram.
Fig. 2 is transformation of electrical energy view.
Fig. 3 is electric drive unit control method schematic diagram.
Fig. 4 is electric drive unit internal structure schematic diagram.
Fig. 5 is electric drive unit theory diagram one.
Fig. 6 is electric drive unit theory diagram two.
In figure: 1-electrical network 22-voltage and current sensor 2-motor winding control switch 3-and open winding motor 4-
Status command system 5-energy-storage system 61-bus positive 62-bus is born 8-filter capacitor and is controlled switch 7-filter capacitor 9-
Electric drive unit 13-relay
91-terminal one 910-current detecting modulate circuit 911-and single chip communication port 912-Switching Power Supply two
914-terminal three 915-fixing hole 916-NTC isolation 917-PT100 isolation 92-drives and drives Interface Terminal 920-to adjust
Examination power input port 921-single-chip microcomputer voltage-stabilized power supply circuit 922-single-chip microcomputer voltage-stabilized power supply circuit 923-single-chip microcomputer and buffering
The output of circuit 924-relay and interface 925-rotation become 24V_to_5v power circuit 926-mistake/undercurrent pressure protection 927-rotation
Become terminal 928-rotation and become modulate circuit 929-8 railway digital isolation input 93-terminal one 930-3 railway digital isolation and amplifier
931-outer signal terminal 932-2 road CAN isolation and power supply 933-interface 24V_to_5v power circuit 939-8 road AD gather
Isolation and power supply 94-PT100 isolation module 95-busbar voltage isolation module 951-voltage on line side terminal one 952-net side electricity
Pressure side son two 953-voltage modulate circuit 96-Switching Power Supply one 99-current sense terminal.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail, it should be noted that the enforcement of the present invention does not limits
In following embodiment.
See that Fig. 1-Fig. 6, a kind of electric automobile drive, control switch S4, S5, S6, shorting stub including motor winding, open winding
Motor, status command give system, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive unit
Composition；
Energy-storage system by bus just, bus is negative is connected with electric drive unit；Electric drive unit passes through tri-cables of U, V, W
It is connected with opening winding motor；
Open winding motor by three cables through motor winding control switch S4, S5, S6 again by junction point P10,
P11, P12 are connected with triple line A on electrical network, B, C；
Bus just and bus negative between connect and have filter capacitor to control switch S1, S2, S3, filter capacitor, filter capacitor control
System switch S1, S2, S3 are connected with filter capacitor；
Triple line A being connected with electrical network, B, C connect and has voltage and current sensor；Energy-storage system is BMS cell tube
Reason system；Status command system gives electric drive unit running status.
Disconnect winding motor and include 6 sections of winding L1～L6, wherein winding L1 Yu L4, winding L2 Yu L5, winding L4 and L6
Separately constituting the three-phase windings disconnecting winding motor, the junction point of two sections of winding L1 is P1 and P4, two sections of winding L4
Junction point is P4 and P7, and winding L1 and winding L4 points of common connection are P4；The junction point of two sections of winding L2 is P2 and P5, winding
The junction point of two sections of L5 is P5 and P8, and winding L2 and winding L5 points of common connection are P5；The junction point of two sections of winding L3 is
The junction point of two sections of P3 and P6, winding L6 is P6 and P9, and winding L3 and winding L6 points of common connection are P6.
Status command system gives electric drive unit running status, and running status is divided into eDrive state, transformation of electrical energy shape
State；When being in eDrive state, electric drive unit controls to open winding motor and runs, and motor winding controls switch S4, S5, S6
Switching in shorting stub by the winding opening winding motor, filter capacitor controls switch S1, S2, S3 disconnection simultaneously, makes out winding
Motor junction point P4, P5, P6 disconnect with filter capacitor；When being in transformation of electrical energy state, by open winding motor around
Group and electrical network carry out energy exchange, and motor winding controls switch S4, S5, S6 and the winding opening winding motor is switched to electrical network
On, disconnect the connection with shorting stub；Meanwhile, filter capacitor control switch S1, S2, S3 turn on winding motor junction point P4,
Connection between P5, P6 and filter capacitor so that filter capacitor is connected with opening winding motor junction point P4, P5, P6.
Wherein, voltage and current sensor by voltage and current signal collection to electric drive unit, for transformation of electrical energy shape
Voltage under state and current acquisition.The signal that status command system sends is on-off model.
Electric drive unit includes three-phase inverter bridge circuit, master control borad, driving plate, and master control borad, driving plate, three-phase bridge are inverse
Power transformation road is sequentially connected with, and master control borad is provided with analog quantity/digital-quantity input interface and analog quantity/digital-quantity output interface, master control
Plate is connected with current sensor, and three-phase inverter bridge circuit is connected with driving winding motor current sensor, energy-storage system
It is connected with three-phase inverter bridge circuit.
Transformation of electrical energy control method, electric drive unit is instructed by bus mode or digital quantity interface State Transferring,
The electric drive unit default conditions that power on are eDrive state, and now, motor winding controls switch and is connected with shorting stub, filters simultaneously
Electric capacity by filter capacitor switch in parallel bus just and bus negative between, open winding electric machine and be in star access state；
Electric drive unit is by the divider resistance detection bus electricity in the busbar voltage isolation module 95 that is positioned on master control borad
Pressure, monitors three-phase current by current sensor, is become by the rotation being arranged on rotor axis of electric and rotation becomes modulate circuit 928 and supervises
Measured motor rotor-position；The three-phase current of monitoring, rotor-position and busbar voltage decoupling three-phase current are d-axis and quadrature axis current；
Determining torque by monitoring motor rotor position, the given SVPWM space vector pulse width modulation that controls exports, by three
Phase bridge inverter main circuit makes motor output expectation torque, thus controls electric vehicle motion, wherein, and the expectation torque of motor output
It is that the gas received by 2 road CAN isolation and power supply 932 is instructed or 8 road AD gather isolation and power supply 939 gathers throttle
Instruction；
When automobile is in halted state, electric drive unit allows to switch to transformation of electrical energy state, now electric drive unit
Monitoring simultaneously is positioned at voltage and the current sensor of grid side, and whether detection junction point P10, P11, P12 are connected with electrical network, if
It is connected with electrical network triple line A, B, C, starts to monitor three-phase alternating current piezoelectric voltage；If be in transformation of electrical energy state simultaneously, switching electricity
Machine winding control switch S4, S5, S6, make filter capacitor be linked into out on winding motor junction point P4, P5, P6, by motor around
Group forms LCL filter circuit with filter capacitor, reduces follow-up grid-connected harmonic wave；Simultaneously carry out SVPWM space vector pulse width
Modulation output, SVPWM space vector pulse width modulation output signal simultaneously drives three-phase inverting circuit and controls output voltage, works as output
Voltage-phase, frequency and line voltage, frequency consistent time, filter capacitor controls switch S1, S2, S3 Guan Bi；
Electric drive unit uses droop control mode, the meritorious and reactive power of regulation output；Drive when again receiving electricity
During dynamic status command, reduce active power and reactive power exports to zero；Switch motor winding controls switch S4, S5, S6 and filter
Ripple capacitance controlled switches S1, S2, S3, reenter eDrive state.
Fig. 5 is the power supply of electric drive unit and drives plate structure, and terminal 2 93 connects bus and isolates 95 by busbar voltage
And voltage modulate circuit 953 changes and accesses and single chip communication port 911 after voltage.Terminal 1 jointing temp detection line is also
PT100 isolation module 94, PT100 isolation 917 and NTC is isolated 916 modules and is accessed after overvoltage modulate circuit 953 changes voltage
With single chip communication port 911.Terminal 2 93 connects bus, Switching Power Supply 1 and Switching Power Supply 2 912 conversion dc bus electricity
Source provides supply voltage for each module.Current sense terminal 99 connects current sensor, by current detecting modulate circuit 910 by electricity
Stream signal is converted to voltage signal and accesses and single chip communication port 911.Voltage on line side terminal 1 and voltage on line side terminal
2 952 open with the voltage sensor being positioned in the net voltage of side and current sensor 22 and the monitoring in electric drive unit respectively around
Voltage sensor in the voltage of group motor triple line and current sensor is connected.Monitoring motor terminal, the voltage of net side.
Fig. 6 is the master control borad structure of electric drive unit.Master control borad and power supply and drive plate by with single chip communication interface
911 connect, and electric current and voltage signal pass to single-chip microcomputer and buffer circuit 923, simultaneously electric current and voltage signal be also transmitted to/
Undercurrent pressure protection 926, and protective number is input to single-chip microcomputer and buffer circuit 923.The outer signal terminal of master control borad is with outside
The interfaces such as gas pedal, CAN communication, ignition switch, command switch are connected, and are gathered in isolation and power supply 939 by 8 road AD
A road AD isolated variable signal monitoring accelerator pedal position.Isolated by 2 road CAN and power supply 932 Zhong mono-road CAN isolation electricity
Road and outside entire car controller communication, and data are passed to single-chip microcomputer and buffer circuit 923.By 8 railway digital isolation inputs 929
In digital isolation module gather ignition switch, command switch signal, and input quantity is passed to single-chip microcomputer and buffer circuit 923.
Connect the rotary transformer being arranged on motor shaft end by PT100 isolation 917 rotation change terminal, become modulate circuit 928 by rotation and resolve
Motor rotor position, and parsing amount is passed to single-chip microcomputer and buffer circuit 923.Single-chip microcomputer and buffer circuit 923, after calculating
Pwm signal is by being sent to drive and drive Interface Terminal 92 with single chip communication port 911.Drive and drive Interface Terminal 92
It is connected with the three-phase inverter bridge circuit in Fig. 4, and controls to open winding electric machine.
The invention discloses motor in electric automobile, driver topological structure and utilize motor in electric automobile and driver to realize
The control method of transformation of electrical energy.Make electric automobile driver element and motor can be utilized to realize the conversion of electric energy, by controlled electricity
Electrical automobile motor winding connects and activation configuration, it is achieved electric automobile drive pattern and the switching of transformation of electrical energy pattern.At electricity
Under driving condition, battery export energy to motor, provide power to electric automobile.Under energy exchange state, utilize electricity
Motivation self winding and driver realize, and the control of electric energy completes the voltage support of electrical network and the charging of battery.Can be not
On the premise of increasing extra inverter and ensureing that power drive system normally works, it is achieved the energy content of battery of electric automobile and electrical network energy
The exchange of amount.Voltage support to electrical network, and utilize electric automobile to form microgrid, it is provided that electric power is significant.
Claims (7)
1. an electric automobile drives, it is characterised in that include that motor winding controls switch S4, S5, S6, shorting stub, opens winding
Motor, status command system, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive unit；
Energy-storage system by bus just, bus is negative is connected with electric drive unit；Electric drive unit passes through tri-cables of U, V, W and opens
Winding motor connects；
Open winding motor and control switch S4, S5, S6 again by junction point P10, P11, P12 by three cables through motor winding
It is connected with triple line A on electrical network, B, C；
Bus just and bus negative between connect and have filter capacitor to control switch S1, S2, S3, filter capacitor, filter capacitor controls to open
Close S1, S2, S3 to be connected with filter capacitor；
Triple line A being connected with electrical network, B, C connect and has voltage and current sensor；Energy-storage system is BMS battery management system
System；Status command system gives electric drive unit running status.
A kind of electric automobile the most according to claim 1 drives, it is characterised in that described disconnection winding motor includes
6 sections of winding L1～L6, wherein winding L1 Yu L4, winding L2 Yu L5, winding L4 Yu L6 separately constitute and disconnect the three of winding motor
Phase winding, the junction point of two sections of winding L1 is P1 and P4, and the junction point of two sections of winding L4 is P4 and P7, winding L1 and winding
L4 points of common connection is P4；The junction point of two sections of winding L2 is P2 and P5, and the junction point of two sections of winding L5 is P5 and P8, around
Group L2 is P5 with winding L5 points of common connection；The junction point of two sections of winding L3 is P3 and P6, the junction point of two sections of winding L6
It is P6 for P6 and P9, winding L3 and winding L6 points of common connection.
A kind of electric automobile the most according to claim 1 drives, it is characterised in that status command system gives electric drive list
Unit's running status, running status is divided into eDrive state, transformation of electrical energy state；When being in eDrive state, electric drive unit
Controlling to open winding motor to run, motor winding controls switch S4, S5, S6 and the winding opening winding motor is switched to shorting stub
On, filter capacitor controls switch S1, S2, S3 disconnection simultaneously, makes out winding motor junction point P4, P5, P6 break with filter capacitor
Open；When being in transformation of electrical energy state, carrying out energy exchange by opening the winding of winding motor with electrical network, motor winding controls
The winding opening winding motor is switched on electrical network by switch S4, S5, S6, disconnects the connection with shorting stub；Meanwhile, filter capacitor
Control switch S1, S2, S3 and turn on the connection between winding motor junction point P4, P5, P6 and filter capacitor so that filtered electrical
Hold and open winding motor junction point P4, P5, P6 and be connected.
A kind of electric automobile the most according to claim 1 drives, it is characterised in that described voltage and current sensor will
Voltage and current signal collection are to electric drive unit, the voltage under transformation of electrical energy state and current acquisition.
A kind of electric automobile the most according to claim 1 drives, it is characterised in that described status command system sends
Signal is on-off model.
A kind of electric automobile the most according to claim 1 drives, it is characterised in that electric drive unit includes that three-phase bridge is inverse
Power transformation road, master control borad, driving plate, master control borad, drive plate, three-phase inverter bridge circuit to be sequentially connected with, and master control borad is provided with simulation
Amount/digital-quantity input interface and analog quantity/digital-quantity output interface, master control borad is connected with current sensor, and three-phase bridge is inverse
Power transformation road is connected with driving winding motor current sensor, and energy-storage system is connected with three-phase inverter bridge circuit.
7. utilize the electric automobile described in claim 1-6 any one to drive the transformation of electrical energy control method realized, its feature
Being, electric drive unit is instructed by bus mode or digital quantity interface State Transferring, and electric drive unit powers on acquiescence shape
State is eDrive state, and now, motor winding controls switch and is connected with shorting stub, and filter capacitor is switched by filter capacitor simultaneously
Be connected in parallel on bus just and bus negative between, open winding electric machine and be in star access state；
Electric drive unit detection busbar voltage, monitors three-phase current by current sensor, monitors motor rotor position；Monitoring
Three-phase current, rotor-position and busbar voltage decoupling three-phase current are d-axis and quadrature axis current；
Determining torque by monitoring motor rotor position, the given SVPWM space vector pulse width modulation that controls exports, and passes through three-phase bridge
Formula inverter circuit makes motor output expectation torque, thus controls electric vehicle motion；Described expectation torque is connect by CAN in car
Mouth receives entire car controller torque instruction；
When automobile is in halted state, electric drive unit allows to switch to transformation of electrical energy state, and now electric drive unit is simultaneously
Monitoring is positioned at voltage and the current sensor of grid side, and whether detection junction point P10, P11, P12 are connected with electrical network, if with electricity
Net triple line A, B, C connection then start to monitor three-phase alternating current piezoelectric voltage；If being simultaneously in transformation of electrical energy state, switch motor around
Group control switch S4, S5, S6, make filter capacitor be linked into out on winding motor junction point P4, P5, P6, by motor winding with
Filter capacitor composition LCL filter circuit, reduces follow-up grid-connected harmonic wave；Simultaneously carry out SVPWM space vector pulse width modulation
Output, SVPWM space vector pulse width modulation output signal simultaneously drives three-phase inverting circuit and controls output voltage, when the electricity of output
When pressure phase place, frequency and line voltage, frequency are consistent, filter capacitor controls switch S1, S2, S3 and closes；
Electric drive unit uses droop control mode, the meritorious and reactive power of regulation output；When again receiving electric drive shape
During state instruction, reduce active power and reactive power exports to zero；Switch motor winding controls switch S4, S5, S6 and filtered electrical
Hold and control switch S1, S2, S3, reenter eDrive state.
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| CN201610445672.2A CN105914767B (en) | 2016-06-20 | 2016-06-20 | A kind of electric automobile driving apparatus and transformation of electrical energy control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838750A (en) * | 2019-11-27 | 2020-02-25 | 哈尔滨工业大学 | Vehicle-mounted integrated charger based on six-phase open winding motor driving system |
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| CN103117691A (en) * | 2011-11-16 | 2013-05-22 | 付强 | Electric vehicle controller used for switching duplex winding motor |
| CN103770656A (en) * | 2012-10-24 | 2014-05-07 | 伊顿公司 | Integrated driving/charging device |
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| CN101911473A (en) * | 2007-12-27 | 2010-12-08 | 株式会社安川电机 | Winding change-over switch of three-phase AC motor |
| CN101633309A (en) * | 2009-09-01 | 2010-01-27 | 东南大学 | Series hybrid electric vehicle (SHEV) driving device and control method |
| CN102158035A (en) * | 2010-02-11 | 2011-08-17 | 唐山普林亿威科技有限公司 | Dual-three-phase bisymmetric winding permanent-magnet brushless direct-current motor |
| CN103117691A (en) * | 2011-11-16 | 2013-05-22 | 付强 | Electric vehicle controller used for switching duplex winding motor |
| CN102843078A (en) * | 2012-08-14 | 2012-12-26 | 深圳先进技术研究院 | Conversion device capable of integrating drive and low-voltage battery charging of switch reluctance motor |
| CN103770656A (en) * | 2012-10-24 | 2014-05-07 | 伊顿公司 | Integrated driving/charging device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838750A (en) * | 2019-11-27 | 2020-02-25 | 哈尔滨工业大学 | Vehicle-mounted integrated charger based on six-phase open winding motor driving system |
| CN110838750B (en) * | 2019-11-27 | 2023-04-07 | 哈尔滨工业大学 | Vehicle-mounted integrated charger based on six-phase open winding motor driving system |
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| CN105914767B (en) | 2018-06-29 |
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