CN105914767B - A kind of electric automobile driving apparatus and transformation of electrical energy control method - Google Patents
A kind of electric automobile driving apparatus and transformation of electrical energy control method Download PDFInfo
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- CN105914767B CN105914767B CN201610445672.2A CN201610445672A CN105914767B CN 105914767 B CN105914767 B CN 105914767B CN 201610445672 A CN201610445672 A CN 201610445672A CN 105914767 B CN105914767 B CN 105914767B
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Classifications
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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
-
- 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
-
- 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
-
- 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
Abstract
The present invention relates to a kind of electric automobile driving apparatus and transformation of electrical energy control method, control switch S4, S5 including machine winding, S6, shorting stub, open winding motor, status command given system, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive unit；Energy-storage system by busbar just, busbar bears and connect with electric drive unit；Electric drive unit is connect by tri- cables of U, V, W with opening winding motor；Open winding motor controls switch S4, S5, S6 to be connected again by triple line A, B, C on tie point P10, P11, P12 and power grid by three cables through machine winding.Advantage is：Electric vehicle is allow to realize the transformation of electric energy using driving unit and motor, by controllable motor in electric automobile winding connection and activation configuration, realizes electric vehicle drive mode and the switching of transformation of electrical energy pattern.
Description
Technical field
The invention belongs to using electric vehicle carry out energy storage unsteady flow field more particularly to a kind of electric automobile driving apparatus with
Transformation of electrical energy control method.
Background technology
As the attention rate of the energy and environment is continuously improved in today's society, the progress of power storage and electric drive technology,
More and more electric vehicles substitute transmission automobile and facilitate trip.Statistics indicate that the annual growth of electric vehicle alreadys exceed
50%, serve society, family using numerous electric vehicles of the electric vehicles such as electric bus, electronic middle-size and small-size vehicle as representative.It is right
The time for having 90% in use in most of electric vehicle is in parked state；At the same time, a large amount of business, do
Public region is when electricity consumption is big, it is possible that electricity consumption shortage problem.If the quantity of electric vehicle reaches certain scale,
Carrier of the electric vehicle as energy can participate in local grid balance towards small micro-capacitance sensor, intelligent grid.
Electric vehicle supplements energy when the energy-storage travelling wave tube as power grid, as needed for power grid.Meanwhile electric vehicle drives
Moving cell, to provide power to electric vehicle, electric vehicle drive module by electrical automobile driver and motor unit into.How
The maximum drive system using electric vehicle itself realizes energy storage unsteady flow, is to effectively reduce access power grid cost, being promoted should
The key of item technological applicability.
Invention content
In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a kind of electric automobile driving apparatus and transformation of electrical energies
Control method realizes energy-storage travelling wave tube of the electric vehicle as power grid, and to small micro-capacitance sensor, intelligent grid participates in local power grid and puts down
Weighing apparatus.
To achieve the above object, the invention is realized by the following technical scheme：
A kind of electric automobile driving apparatus, controls that switch S4, S5, S6, shorting stub, to open winding electronic including machine winding
Machine, status command system, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive unit；
Energy-storage system by busbar just, busbar bears and connect with electric drive unit；Electric drive unit passes through tri- cables of U, V, W
It is connect with opening winding motor；
Open winding motor by three cables through machine winding control switch S4, S5, S6 again by tie point P10,
Triple line A, B, C connection on P11, P12 and power grid；
Busbar just and busbar bear between be connected with filter capacitor control switch S1, S2, S3, filter capacitor, filter capacitor control
System switch S1, S2, S3 are connected with filter capacitor；
Voltage and current sensor is connected on triple line A, B, the C being connect with power grid；Energy-storage system is BMS cell tubes
Reason system；Status command system gives electric drive unit operating status；
The winding motor of opening includes 6 sections of winding L1~L6, wherein winding L1 and L4, winding L2 and L5, winding L4
Separately constituting the three-phase windings for disconnecting winding motor with L6, the tie point at the both ends of winding L1 is P1 and P4, the two of winding L4
The tie point at end is that P4 and P7, winding L1 and winding L4 points of common connection are P4；The tie point at the both ends of winding L2 is P2 and P5,
The tie point at the both ends of winding L5 is that P5 and P8, winding L2 and winding L5 points of common connection are P5；The connection at the both ends of winding L3
Point is P3 and P6, and it is P6 that the tie point at the both ends of winding L6, which is P6 and P9, winding L3 and winding L6 points of common connection,；
Status command system gives electric drive unit operating status, and operating status is divided into eDrive state, transformation of electrical energy shape
State；When in eDrive state, winding motor operation, machine winding control switch S4, S5, S6 are opened in electric drive unit control
The winding for opening winding motor is switched in shorting stub, while filter capacitor control switch S1, S2, S3 are disconnected, and make out winding
Motor tie point P4, P5, P6 and filter capacitor disconnect；When in transformation of electrical energy state, by open winding motor around
Group carries out energy exchange with power grid, and the winding for opening winding motor is switched to power grid by machine winding control switch S4, S5, S6
On, disconnect the connection with shorting stub；Meanwhile filter capacitor control switch S1, S2, S3 turn on winding motor tie point P4,
Connection between P5, P6 and filter capacitor so that filter capacitor is connect with opening winding motor tie point P4, P5, P6.
The voltage and current sensor is by voltage and current signal acquisition to electric drive unit, for transformation of electrical energy shape
Voltage and current acquisition under state.
The signal that the status command system is sent 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
Become circuit to be sequentially connected, master control borad is equipped 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 opening winding motor current sensor, energy-storage system
It is connected with three-phase inverter bridge circuit.
A kind of transformation of electrical energy control method, electric drive unit are referred to by bus mode or the conversion of digital interface reception state
It enables, electric drive unit powers on default conditions as eDrive state, at this point, machine winding control switch is connected with shorting stub, simultaneously
Filter capacitor between busbar is just born with busbar, is opened winding electric machine and is in star access state by filter capacitor switch in parallel；
Electric drive unit detects busbar voltage, three-phase current is monitored by current sensor, by being mounted on rotor
Rotation on axis becomes and rotation becomes conditioning circuit monitoring motor rotor position；Three-phase current, rotor-position and the busbar voltage solution of monitoring
Coupling three-phase current is d-axis and quadrature axis current；
Torque is determined by monitoring motor rotor position, is given control SVPWM space vector pulse width modulation outputs, is passed through three
Phase bridge inverter main circuit makes motor output it is expected torque, so as to control electric vehicle motion；The expectation torque passes through 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, at this time electric drive unit
Monitoring simultaneously is located at the voltage and current sensor of grid side, and whether detection tie point P10, P11, P12 connect with power grid, if
It is connect with power grid triple line A, B, C, starts to monitor three-phase alternating current piezoelectric voltage；If simultaneously in transformation of electrical energy state, switching electricity
Machine winding control switch S4, S5, S6, filter capacitor is made to be linked into out on winding motor tie point P4, P5, P6, by motor around
Group forms LCL filter circuits with filter capacitor, reduces subsequent grid-connected harmonic wave；At the same time SVPWM space vector pulse widths are carried out
Modulation output, SVPWM space vector pulse width modulations output signal drive three-phase inverting circuit to control output voltage, work as output simultaneously
Voltage-phase, frequency it is consistent with network voltage, frequency when, filter capacitor control switch S1, S2, S3 be closed；
Electric drive unit uses droop control mode, adjusts the active and reactive power of output；When receiving electric drive again
During dynamic status command, reduce active power and reactive power is exported to zero；Switch motor winding control switch S4, S5, S6 and filter
Wave capacitance controlled switches S1, S2, S3, reenter eDrive state.
Compared with prior art, the beneficial effects of the invention are as follows：
It is realized the invention discloses motor in electric automobile, driver topological structure and using motor in electric automobile and driver
The control method of transformation of electrical energy.Electric vehicle is allow to realize the transformation of electric energy using driving unit and motor, by controllable electricity
Electrical automobile machine winding connects and activation configuration, realizes electric vehicle drive mode and the switching of transformation of electrical energy pattern.In electricity
Under driving condition, from battery to motor output energy, power is provided to electric vehicle.Under energy exchange state, electricity is utilized
Motivation itself winding and driver realize that the charging of the voltage support and battery of power grid is completed in the control of electric energy.It can be not
Under the premise of increasing additional inverter and ensureing power drive system normal work, the energy content of battery of electric vehicle and power grid energy are realized
The exchange of amount.Voltage support and utilization electric vehicle to power grid form microgrid, and it is significant to provide electric power.
Description of the drawings
Fig. 1 is eDrive state schematic diagram.
Fig. 2 is transformation of electrical energy status diagram.
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 functional block diagram one.
Fig. 6 is electric drive unit functional block diagram two.
In figure：1- power grid 22- voltage and current sensor 2- machine windings control switch 3- opens winding motor 4-
The positive 62- busbares of status command system 5- energy-storage system 61- busbares bear 8- filter capacitors control switch 7- filter capacitors 9- electricity
Driving unit 13- relays
One 910- current detecting modulate circuit 911- of 91- terminals and single chip communication port 912- Switching Power Supplies two
Three 915- mounting holes 916-NTC of 914- terminals isolation 917-PT100 isolation 92- drivings and driving interface terminal 920- tune
Try power input port 921- microcontroller voltage-stabilized power supply circuit 922- microcontrollers voltage-stabilized power supply circuit 923- microcontrollers and buffering
Circuit 924- relays export and interface 925- rotations become 24V_to_5v power circuits 926- mistakes/undercurrent pressure protection 927- rotations
Become terminal 928- rotations and become the one 930-3 railway digitals isolation output of modulate circuit 929-8 railway digital isolation input 93- terminals
931- outer signal terminal 932-2 road CAN are isolated and power supply 933- interface 24V_to_5v power circuit 939-8 road AD acquisitions
Isolation and one 952- net sides of power supply 94-PT100 isolation module 95- busbar voltage isolation module 951- voltage on line side terminal electricity
Pressure side son two 953- voltage modulate circuit 96- Switching Power Supplies, one 99- current sense terminals.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings of the specification, it should be noted that the implementation of the present invention is unlimited
In following embodiment.
See Fig. 1-Fig. 6, a kind of electric automobile driving apparatus controls switch S4, S5 including machine winding, S6, shorting stub, opens
Winding motor, status command given system, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive
Unit forms；
Energy-storage system by busbar just, busbar bears and connect with electric drive unit；Electric drive unit passes through tri- cables of U, V, W
It is connect with opening winding motor；
Open winding motor by three cables through machine winding control switch S4, S5, S6 again by tie point P10,
Triple line A, B, C connection on P11, P12 and power grid；
Busbar just and busbar bear between be connected with filter capacitor control switch S1, S2, S3, filter capacitor, filter capacitor control
System switch S1, S2, S3 are connected with filter capacitor；
Voltage and current sensor is connected on triple line A, B, the C being connect with power grid；Energy-storage system is BMS cell tubes
Reason system；Status command system gives electric drive unit operating status.
It disconnects winding motor and includes 6 sections of winding L1~L6, wherein winding L1 and L4, winding L2 and L5, winding L4 and L6
Separately constitute the three-phase windings for disconnecting winding motor, two sections of the tie point of winding L1 is P1 and P4, two sections of winding L4
Tie point is that P4 and P7, winding L1 and winding L4 points of common connection are P4；Two sections of the tie point of winding L2 be P2 and P5, winding
Two sections of the tie point of L5 is that P5 and P8, winding L2 and winding L5 points of common connection are P5；Two sections of the tie point of winding L3 is
Two sections of the tie point of P3 and P6, winding L6 are that P6 and P9, winding L3 and winding L6 points of common connection are P6.
Status command system gives electric drive unit operating status, and operating status is divided into eDrive state, transformation of electrical energy shape
State；When in eDrive state, winding motor operation, machine winding control switch S4, S5, S6 are opened in electric drive unit control
The winding for opening winding motor is switched in shorting stub, while filter capacitor control switch S1, S2, S3 are disconnected, and make out winding
Motor tie point P4, P5, P6 and filter capacitor disconnect；When in transformation of electrical energy state, by open winding motor around
Group carries out energy exchange with power grid, and the winding for opening winding motor is switched to power grid by machine winding control switch S4, S5, S6
On, disconnect the connection with shorting stub；Meanwhile filter capacitor control switch S1, S2, S3 turn on winding motor tie point P4,
Connection between P5, P6 and filter capacitor so that filter capacitor is connect with opening winding motor tie point P4, P5, P6.
Wherein, voltage and current sensor is by voltage and current signal acquisition to electric drive unit, for transformation of electrical energy shape
Voltage and current acquisition under state.The signal that status command system is sent 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
Become circuit to be sequentially connected, master control borad is equipped 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 opening 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 by bus mode or digital interface reception state conversion instruction,
Electric drive unit powers on default conditions as eDrive state, at this point, machine winding control switch is connected with shorting stub, filters simultaneously
Capacitance between busbar is just born with busbar, is opened winding electric machine and is in star access state by filter capacitor switch in parallel；
Electric drive unit detects busbar electricity by the divider resistance being located in the busbar voltage isolation module 95 on master control borad
Pressure monitors three-phase current by current sensor, is become by the rotation being mounted on rotor axis of electric and rotation becomes modulate circuit 928 and supervises
Measured motor rotor-position；Three-phase current, rotor-position and the busbar voltage decoupling three-phase current of monitoring are d-axis and quadrature axis current；
Torque is determined by monitoring motor rotor position, is given control SVPWM space vector pulse width modulation outputs, is passed through three
Phase bridge inverter main circuit makes motor output it is expected torque, so as to control electric vehicle motion, wherein, the expectation torque of motor output
It is that the automotive throttle received by 2 road CAN isolation and power supply 932 instructs or 8 road AD acquisitions are isolated and power supply 939 acquires throttle
Instruction；
When automobile is in halted state, electric drive unit allows to switch to transformation of electrical energy state, at this time electric drive unit
Monitoring simultaneously is located at the voltage and current sensor of grid side, and whether detection tie point P10, P11, P12 connect with power grid, if
It is connect with power grid triple line A, B, C, starts to monitor three-phase alternating current piezoelectric voltage；If simultaneously in transformation of electrical energy state, switching electricity
Machine winding control switch S4, S5, S6, filter capacitor is made to be linked into out on winding motor tie point P4, P5, P6, by motor around
Group forms LCL filter circuits with filter capacitor, reduces subsequent grid-connected harmonic wave；Simultaneously carry out SVPWM space vector pulse widths
Modulation output, SVPWM space vector pulse width modulations output signal drive three-phase inverting circuit to control output voltage, work as output simultaneously
Voltage-phase, frequency it is consistent with network voltage, frequency when, filter capacitor control switch S1, S2, S3 be closed；
Electric drive unit uses droop control mode, adjusts the active and reactive power of output；When receiving electric drive again
During dynamic status command, reduce active power and reactive power is exported to zero；Switch motor winding control switch S4, S5, S6 and filter
Wave capacitance controlled switches S1, S2, S3, reenter eDrive state.
Fig. 5 is the power supply of electric drive unit and driving harden structure, and terminal 2 93 connects busbar and is isolated 95 by busbar voltage
And voltage modulate circuit 953 converts access and single chip communication port 911 after voltage.One 91 jointing temp detection line of terminal is simultaneously
PT100 isolation modules 94, PT100 are isolated 917 and NTC, 916 modules of isolation and are accessed after overvoltage modulate circuit 953 converts voltage
With single chip communication port 911.Terminal 2 93 connects busbar, and Switching Power Supply 1 and Switching Power Supply 2 912 convert dc bus electricity
Source provides supply voltage for each module.Current sense terminal 99 connects current sensor, will be electric by current detecting modulate circuit 910
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 opened respectively with the monitoring in the voltage sensor and electric drive unit in the voltage and current sensor 22 of net side around
Voltage sensor in the voltage and current sensor of group motor triple line is connected.Monitor motor terminal, the voltage at net side end.
Fig. 6 is the master control harden structure of electric drive unit.Master control borad and power supply and driving plate by with single chip communication interface
Electric current and voltage signal are transmitted to microcontroller and buffer circuit 923 by 911 connections, at the same electric current and voltage signal be also transmitted to/
Undercurrent pressure protection 926, and protective number is input to microcontroller and buffer circuit 923.The outer signal terminal of master control borad and outside
The interfaces such as gas pedal, CAN bus communication, ignition switch, command switch are connected, and are acquired in isolation and power supply 939 by 8 road AD
The isolated variable signal monitoring accelerator pedal positions of AD all the way.Electricity is isolated by the CAN all the way in 2 road CAN isolation and power supply 932
Road communicates, and data are transmitted to microcontroller and buffer circuit 923 with external entire car controller.Pass through 8 railway digital isolation inputs 929
In digital isolation module acquisition ignition switch, command switch signal, and input quantity is transmitted to microcontroller and buffer circuit 923.
Rotary transformer mounted on motor shaft end is connect by 917 rotation change terminal of PT100 isolation, modulate circuit 928 is become by rotation and is parsed
Motor rotor position, and parsing amount is transmitted to microcontroller and buffer circuit 923.Microcontroller and buffer circuit 923, after calculating
Pwm signal with single chip communication port 911 by being transmitted to driving and driving interface terminal 92.Driving and driving interface terminal 92
It is connect with the three-phase inverter bridge circuit in Fig. 4, and controls and open winding electric machine.
It is realized the invention discloses motor in electric automobile, driver topological structure and using motor in electric automobile and driver
The control method of transformation of electrical energy.Electric vehicle is allow to realize the transformation of electric energy using driving unit and motor, by controllable electricity
Electrical automobile machine winding connects and activation configuration, realizes electric vehicle drive mode and the switching of transformation of electrical energy pattern.In electricity
Under driving condition, from battery to motor output energy, power is provided to electric vehicle.Under energy exchange state, electricity is utilized
Motivation itself winding and driver realize that the charging of the voltage support and battery of power grid is completed in the control of electric energy.It can be not
Under the premise of increasing additional inverter and ensureing power drive system normal work, the energy content of battery of electric vehicle and power grid energy are realized
The exchange of amount.Voltage support and utilization electric vehicle to power grid form microgrid, and it is significant to provide electric power.
Claims (5)
1. a kind of electric automobile driving apparatus, which is characterized in that control switch S4, S5 including machine winding, S6, shorting stub, open
Winding motor, status command system, energy-storage system, filter capacitor, filter capacitor control switch S1, S2, S3, electric drive list
Member；
Energy-storage system by busbar just, busbar bears and connect with electric drive unit；Electric drive unit is by tri- cables of U, V, W with opening
Winding motor connects；
It opens winding motor and controls switch S4, S5, S6 again by tie point P10, P11, P12 through machine winding by three cables
It is connect with triple line A, B, C on power grid；
Busbar just and busbar bear between be connected with filter capacitor control switch S1, S2, S3, filter capacitor, filter capacitor control open
S1, S2, S3 is closed with filter capacitor to be connected；
Voltage and current sensor is connected on triple line A, B, the C being connect with power grid；Energy-storage system is BMS battery managements system
System；Status command system gives electric drive unit operating status；
The winding motor of opening includes 6 sections of winding L1~L6, wherein winding L1 and L4, winding L2 and L5, winding L4 and L6
The three-phase windings for disconnecting winding motor are separately constituted, the tie point at the both ends of winding L1 is P1 and P4, the both ends of winding L4
Tie point is that P4 and P7, winding L1 and winding L4 points of common connection are P4；The tie point at the both ends of winding L2 be P2 and P5, winding
The tie point at the both ends of L5 is that P5 and P8, winding L2 and winding L5 points of common connection are P5；The tie point at the both ends of winding L3 is
P3 and P6, it is P6 that the tie point at the both ends of winding L6, which is P6 and P9, winding L3 and winding L6 points of common connection,；
Status command system gives electric drive unit operating status, and operating status is divided into eDrive state, transformation of electrical energy state；When
During in eDrive state, winding motor operation is opened in electric drive unit control, and machine winding control switch S4, S5, S6 will be opened
The winding of winding motor is switched in shorting stub, while filter capacitor control switch S1, S2, S3 are disconnected, and make out winding electronic
Machine tie point P4, P5, P6 and filter capacitor disconnect；When in transformation of electrical energy state, by open the winding of winding motor with
Power grid carries out energy exchange, and the winding for opening winding motor is switched on power grid, broken by machine winding control switch S4, S5, S6
Open the connection with shorting stub；Meanwhile filter capacitor control switch S1, S2, S3 turn on winding motor tie point P4, P5, P6
Connection between filter capacitor so that filter capacitor is connect with opening winding motor tie point P4, P5, P6.
A kind of 2. electric automobile driving apparatus according to claim 1, which is characterized in that the voltage and current sensing
Device is by voltage and current signal acquisition to electric drive unit, for the voltage and current acquisition under transformation of electrical energy state.
A kind of 3. electric automobile driving apparatus according to claim 1, which is characterized in that the status command system hair
The signal sent is on-off model.
4. a kind of electric automobile driving apparatus according to claim 1, which is characterized in that electric drive unit includes three-phase bridge
Formula inverter circuit, master control borad, driving plate, master control borad, driving plate, three-phase inverter bridge circuit are sequentially connected, and master control borad is equipped with
Analog quantity/digital-quantity input interface and analog quantity/digital-quantity output interface, master control borad are connected with current sensor, three-phase bridge
Formula inverter circuit is connected with opening winding motor current sensor, and energy-storage system is connected with three-phase inverter bridge circuit.
5. the transformation of electrical energy control method realized using the electric automobile driving apparatus described in claim 1-4 any one,
It is characterized in that, by bus mode or digital interface reception state conversion instruction, electric drive unit powers on silent electric drive unit
State is recognized for eDrive state, at this point, machine winding control switch is connected, while filter capacitor passes through filter capacitor with shorting stub
Switch in parallel opens winding electric machine and is in star access state between busbar is just born with busbar；
Electric drive unit detects busbar voltage, three-phase current is monitored by current sensor, by being mounted on rotor axis of electric
Rotation become and rotation become conditioning circuit monitoring motor rotor position；Three-phase current, rotor-position and the busbar voltage decoupling three of monitoring
Phase current is d-axis and quadrature axis current；
Torque is determined by monitoring motor rotor position, is given control SVPWM space vector pulse width modulation outputs, is passed through three-phase bridge
Formula inverter circuit makes motor output it is expected torque, so as to control electric vehicle motion；The expectation torque is connect by interior CAN
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 electric drive unit is simultaneously at this time
Monitoring is positioned at the voltage and current sensor of grid side, and whether detection tie point P10, P11, P12 connect with power grid, if with electricity
Net triple line A, B, C connection then start to monitor three-phase alternating current piezoelectric voltage；If simultaneously in transformation of electrical energy state, switch motor around
Group control switch S4, S5, S6, filter capacitor is made to be linked into out on winding motor tie point P4, P5, P6, by machine winding with
Filter capacitor forms LCL filter circuits, reduces subsequent grid-connected harmonic wave；At the same time SVPWM space vector pulse width modulations are carried out
Output, SVPWM space vector pulse width modulations output signal drives three-phase inverting circuit to control output voltage simultaneously, when the electricity of output
When pressing phase, frequency consistent with network voltage, frequency, filter capacitor control switch S1, S2, S3 are closed；
Electric drive unit uses droop control mode, adjusts the active and reactive power of output；When receiving electric drive shape again
When state instructs, reduce active power and reactive power is exported to zero；Switch motor winding control switch S4, S5, S6 and filtered electrical
Hold control switch S1, S2, S3, reenter eDrive state.
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| CN101633309A (en) * | 2009-09-01 | 2010-01-27 | 东南大学 | Series hybrid electric vehicle (SHEV) driving device and control method |
| 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 |
| 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 |
| 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 |
| 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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2016
- 2016-06-20 CN CN201610445672.2A patent/CN105914767B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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