CN110492578A - A kind of vehicle-mounted charge for electric vehicle and driving integrated apparatus - Google Patents

A kind of vehicle-mounted charge for electric vehicle and driving integrated apparatus Download PDF

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Publication number
CN110492578A
CN110492578A CN201910810893.9A CN201910810893A CN110492578A CN 110492578 A CN110492578 A CN 110492578A CN 201910810893 A CN201910810893 A CN 201910810893A CN 110492578 A CN110492578 A CN 110492578A
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China
Prior art keywords
unit
charging
circuit
phase
battery
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CN201910810893.9A
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Chinese (zh)
Inventor
赵剑飞
俞涛
刘廷章
王爽
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Priority to CN201910810893.9A priority Critical patent/CN110492578A/en
Publication of CN110492578A publication Critical patent/CN110492578A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • 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
    • H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The invention discloses a kind of vehicle-mounted charges for electric vehicle and driving integrated apparatus.The device includes: main circuit unit, switching logic control unit.The main circuit is made of battery, more three-phase H bridges, polydisc axial flux permanent magnet synchronous motor and switching network, polydisc axial-flux electric machine stator winding realizes the mixed function of drive mode and charge mode as the inductance in poly phase rectification and multiphase interleaving circuit；The switching logic control unit is powered on by the way that whether voltage sensor unit detection stator connects, and signal is sent to vehicle manager；Vehicle manager processes signal, control switch network action, switching driving and charge mode.The structure has more advantages: driving and charging circuit configuration reusable can convert the conversion for realizing charging with drive mode by switching logic；Motor stator winding serves as big inductance and reduces current harmonics promotion current quality by multiphase interleaving buck topological structure, improves charge power grade, extends the service life.

Description

A kind of vehicle-mounted charge for electric vehicle and driving integrated apparatus
Technical field
The present invention relates to a kind of vehicle-mounted charges for electric vehicle and driving integrated apparatus.
Background technique
The development of electric car is to solve an important aspect of fossil energy shortage, and the relevant technologies and industry development are fast Speed, but the battery of electric car and its charging technique be restrict its development an important factor for, accumulator charging technology it is good It is bad to will have a direct impact on its charging time and working life.Charging system for electric automobile includes vehicle-mounted type charging system and independence Type charging system, the two maximum difference i.e. vehicle-mounted type charging system installs recharging converter onboard, and self Charging Charging rectifier is placed on special charging pile by system.
Traditional charging system for electric automobile works when electric car in drive mode or charge mode, mutually strains Stream device works and corresponds to current transformer and stop working, i.e., runs when charging rectifier converter is different with driving inverter；This is allowed for Big inductance and bulky capacitor quantitative levels in charging system is higher, causes the generally existing at high cost, body of vehicle-mounted type charging system The problems such as product is big, power density grade is low.
Summary of the invention
It is an object of the invention to overcome the defect of the above-mentioned prior art, provide a kind of vehicle-mounted charge for electric vehicle with Drive integrated apparatus.The structure of the device is as shown in Figure 1.The electric power main circuit by multiple three-phase H bridges, polydisc axial magnetic flux forever Magnetic-synchro motor, battery side switching network and grid side switching network composition: under driving condition, battery side switching network And grid side switching network generates corresponding actions and changes circuit structure, realizes the driving of electric vehicle, and under charged state, axial magnetic Logical permanent-magnetic synchronous motor stator winding serves as big inductance and three-phase H bridge constitutes polyphase rectifier circuit and the control of multiphase separate current is handed over Wrong parallel circuit generates the charging voltage and electric current of high-precision low ripple.The main circuit driving condition is opened up with charge state circuitry It flutters switching to complete by switch motion, realizes that driving is multiplexed with charging circuit configuration, save space.Control circuit passes through grid side Voltage sensor detection voltage signal judgement be in driving condition or charged state: main circuit to be in drive mode, Vehicle manager controls battery side switch and grid side switch motion, and main circuit is transformed into drive mode, and control circuit uses The control methods control DSP control unit such as feedforward and sliding formwork control generates PWM wave, electric power in three-phase rectification bridge in control main circuit Electronic device switching signal realizes the normal driving of motor；If main circuit is under charge mode, vehicle manager controls electric power storage Pond side switch and grid side switch motion, main circuit form the cascade electricity of rectification circuit and crisscross parallel Buck/Boost circuit Road charges to battery by power grid.The present apparatus also has faults-tolerant control and torque collaboration optimal control, guarantees electronic The normal high-efficiency operation of the safety of vehicle under any circumstance.
The purpose of the present invention is achieved through the following technical solutions:
A kind of vehicle-mounted charge for electric vehicle of the present invention and driving integrated apparatus, the system are as shown in Figure 1.The system Main circuit include 1. battery, 2. battery side switching network unit, 3. three-phase H-bridge unit, 4. polydisc axial flux permanent magnet is same Walk electric motor units, 5. grid side switching network, 6. charging plug and power grid.Battery connects battery side switching network unit, opens It closes logic unit and connects battery side switching network unit, three-phase H-bridge unit, polydisc axial flux permanent magnet synchronous motor, grid side Switching network unit and charging plug, battery side switching network unit are successively same through three-phase H-bridge unit, polydisc axial flux permanent magnet Step motor connects charging plug (being illustrated with four stator disc type axial magnetic flux synchronous motors) with grid side switching network unit, The battery side switching network unit mainly controls the switching of charging with drive mode；The three-phase H-bridge unit is in driving shape Battery output DC inversion is supplied into polydisc axial flux permanent magnet synchronous motor unit at three-phase alternating current under state, in charged state Lower and polydisc axial flux permanent magnet synchronous motor unit stator winding own inductance constitutes polyphase rectifier circuit and multiphase independent electrical Flow control crisscross parallel circuit realizes the charging of power grid to battery；The grid side switching network is for controlling rectification stator The distribution of inductance and crisscross parallel stator inductance.
When device is under drive mode, vehicle manager controls battery side switching network and grid side switching network Movement forms motor-drive circuit topological structure, and the power electronics that DSP control unit generates on pwm signal control three-phase H bridge is opened Close device on-off, driving motor operating.
When device is under charge mode, two three-phase stator windings and power electronic devices constitute rectification circuit, and another two is fixed Sub- winding constitutes crisscross parallel Buck/Boost circuit with power electronic devices respectively, is converted alternating current to by rectification circuit Direct current then carries out buck by crisscross parallel Buck/Boost circuit, voltage class is adjusted to battery voltage rating Grade reduces Current Voltage ripple.
The switching network is the logical construction that three common relays and five SPDT relays form.
The filter capacitor unit is four capacitor compositions.
The three-phase bridge circuit has four groups, and every group is made of six electronic power switches and six diodes.
The inductance unit is made of polyaxial flux electric machine stator winding.
Compared with prior art, the beneficial effect of this structure is:
1, driving circuit and charging circuit are multiplexed set of device, are not necessarily to additional charging unit, more convenient；
2, crisscross parallel lifting/voltage reducing is controlled using multiple groups three-phase stator winding separate current, reduces charging current ripple, promotion is filled Electric current quality；
3, it is suitble to each voltage class battery, when electric vehicle replacement battery, can be also made by controlling step-up/step-down circuit duty ratio Charging voltage and current adaptation.
The system switching logic control circuit includes 1. voltage detection unit, 2. A/D converting unit, 3. vehicle manager list Member, 4. DSP control unit and 5. driving circuit.The voltage detection unit is an AC voltage sensor and a direct current Voltage sensor, AC voltage sensor acquire the voltage signal between two groups of threephase stator winding neutral points, and DC voltage passes Sensor acquires three-phase H bridge dc-link capacitance both end voltage；The A/D converting unit uses LTC1403 serial analog-digital converter, Voltage analog signal is converted into digital signal, is delivered to main control unit；Main control unit uses STM32f107, according to collecting Voltage signal determine driving or charge mode, dsp chip TMS320F28335 control generates pwm signal and passes through under drive mode On-off of the driving circuit to control three-phase H bridge upper switch pipe, control switch acts to form charging topological structure under charge mode.
When battery-operated, S2 and S2a, S2b are disconnected, and voltage detection unit detects that any two groups of three-phase windings are neutral Line voltage is zero, and vehicle manager control switch K1, K2, K3, K4 are attracted 1 grade, and Ka, Kb hang 0 grade, is closed S1, switchs at this time State is drive mode, and DSP control unit issues pwm signal as requested, through electric power in drive module control three-phase H-bridge circuit Electronic switch on-off, battery are powered to motor stator winding, motor operation；When battery does not work, if you need to charge, arbitrarily Two groups of three-phase windings neutral conductor access electric mains (by taking 1,2 stator winding access electric main as an example), S2 is connect with S2a, electricity Pressure detection unit detects this voltage, transmits signals to the control of vehicle manager K1, K2, K3, K4 through analog-to-digital conversion module and inhales 2 grades are closed, Ka is connected with Ka0, and dc-link capacitance both end voltage is higher than battery charging voltage rating, vehicle management if detecting Device control relay Kb connects Kb2 grades；If detecting dc-link capacitance both end voltage lower than battery charging voltage rating, vehicle Manager control relay Kb connects Kb1 grades, and electric main charges for battery at this time.
Compared with existing electric car charging technique, the beneficial effect of this control method is:
1, driving circuit and charging circuit are multiplexed set of device, and control method is more succinct；
2, can automatic discrimination electric car status, complete respective switch movement, realize corresponding operating.
Detailed description of the invention
Fig. 1 is vehicle-mounted charge for electric vehicle and driving integrated apparatus entirety functional block diagram；
Fig. 2 is vehicle-mounted charge for electric vehicle and driving integrated apparatus overall topology figure；
Fig. 3 is main circuit and switch state figure under drive mode；
Fig. 4 is a kind of main circuit and switch state figure under charging electric motor vehicles mode.
Specific embodiment
A kind of vehicle-mounted charge for electric vehicle and driving integrated apparatus.The device includes: 1. battery, 2. battery side Switching network, 3. three-phase H-bridge unit, 4. control circuit, 5. polydisc axial flux permanent magnet synchronous motor, 6. grid side switch net Network, 7. charging plug and power grid.Battery side switching network described in main circuit part and grid side switching network control topology knot The variation of structure, switching driving and charge mode；Filter capacitor is for pressure stabilizing and filtering in the three-phase H-bridge unit, to obtain High quality electric energy, three-phase H-bridge circuit for realizing the inversion under drive mode and rectification and crisscross parallel under charge mode, The DC inversion of battery output is operated at exchange supply motor at any driving condition, in charging mode part bridge circuit Power grid is exchanged and carries out rectifying part to the direct current progress buck processing after rectification, to meet the specified electricity of battery charging Press strip part；The polydisc axial-flux electric machine leads to the poor 120 ° of electric currents of three-phase phase at any driving condition and generates torque band electrical automobile fortune Row, stator winding serves as the inductance in rectification circuit and crisscross parallel circuit in the charge state, realizes rectification and interlocks simultaneously The charging of alliance battery；The control circuit includes: voltage detection unit, AD conversion unit, vehicle manager unit, DSP Control unit and drive circuit unit: the voltage detection unit detects two groups of threephase stator winding neutrality line voltages of rectifying part With three-phase H bridge both ends of filter capacitor voltage, judge whether to connect AC power source and rectified rear voltage and battery charging electricity Whether pressure matches；The AD conversion unit uses LTC1403 serial analog-digital converter, and voltage analog signal is converted into number Signal is delivered to main control unit；The vehicle manager uses STM32f107, if connecting AC power source, controls battery side Switching network is acted with grid side switching network, so that main circuit forms opening up for rectification circuit and crisscross parallel circuits cascading Structure is flutterred, if access failure AC power source, the dsp chip TMS320F28335 requires to generate pwm signal to drive according to control Dynamic circuit, controls the on-off of electronic power switch on three-phase H bridge.
Vehicle-mounted charge for electric vehicle and driving integrated apparatus overall topology such as Fig. 2.Contain in three-phase H-bridge circuit There is DC filter capacitor to be filtered；
Preferred embodiment of the present invention will be described with reference to the accompanying drawing:
Embodiment one:
Under drive mode, S2 does not vacantly access power grid, and voltage sensor detects that current potential is zero at S2, and signal is converted through A/D After be sent to vehicle manager, pass through driving circuit control switch network and carry out following on-off: as shown in figure 3, battery side is opened It closes A1, A2, A3, A4 to connect with C1, C2, C3, C4 respectively, B2, B3 are disconnected, and battery exports direct current by certain duty ratio The three-phase inversion H bridge of SVPWM phase shifting control generates three-phase alternating current, and grid side switch D1, D2 are disconnected, and E1, E2 are disconnected, Ka, Kb It is connected respectively with Ka0, Kb0, each group of threephase stator winding connects three-phase alternating current, and it is independent to generate rotating excitation field, transport rotor Dynamic, electric car is in driving condition.In addition, under driving condition to motor carry out faults-tolerant control with cooperate with optimal control: 1, appearance Mistake control: when the failure of a certain coil motor, the disk can be cut off into out circuit by controlling immediately, guarantee electric car just Often operation.2, it cooperates with optimal control: being all made of torque when driving is with braking and cooperate with optimal control, reasonable distribution driving and braking institute Torque is needed, so that driving time motion efficiency highest, when braking can recycle more energy.
The present embodiment vehicle-mounted charge for electric vehicle and driving integrated apparatus are for passing through under electric car drive mode Grid side voltage detecting determines that electric car is in drive mode, and voltage detection signal is delivered to vehicle manager, control driving Circuit generates driving signal to three-phase H bridge and carries out inversion, and vehicle manager control battery side switch and grid side switch make Main circuit is at four parallel inverter topological structures.
Embodiment two:
The present embodiment is different compared with embodiment one, and difference is as follows:
Under charge mode: so that 1,2 two group of three-phase windings is done inductor rectifier, then S2 meets S2a；Such as do 3,4 two groups of three-phase windings Inductor rectifier, then S2 meets S2b.Voltage sensor detects that access alternating current, signal are sent to vehicle after A/D is converted at S2 at this time Manager passes through driving circuit control switch network and carries out following on-off: battery side switch B1, B2, B3, B4 respectively with C1, C2, C3, C4 connection.If 1,2 two groups of three-phase windings do inductor rectifier, 3,4 two groups of three-phase windings do crisscross parallel, as shown in figure 4, Grid side switch D1, D2 are disconnected, and E1, E2 connection, Ka connect with Ka0, when detecting that capacitance network cell voltage is lower than battery When voltage rating needed for charging needs to boost, Kb is connected with Kb1, and the direct current after rectification is through polyaxial flux stator winding The three-phase Boost crisscross parallel circuit of M3, M4 and three-phase H bridge composition, which is realized, to boost；If detecting, capacitance network cell voltage is high When the voltage rating needed for battery charges needs to be depressured, Kb is connected with Kb2, and the direct current after rectification is fixed through polyaxial magnetic flux The three-phase Buck crisscross parallel circuit of sub- winding and three-phase H bridge composition, which is realized, to be depressured.If 3,4 two groups of three-phase windings do rectified current Sense, 1,2 two group of three-phase windings do crisscross parallel, grid side switch D1, D2 connection, and E1, E2 are disconnected, and Kb is connect with Kb0, works as detection When voltage rating needed for charging to three-phase H bridge both ends of filter capacitor voltage lower than battery needs to boost, Ka is connected with Ka1, The three-phase Boost crisscross parallel circuit that direct current after rectification is formed through polyaxial flux stator winding M1, M2 and three-phase H bridge is real Now boost；If detect that three-phase H bridge both ends of filter capacitor voltage needs to be depressured higher than voltage rating needed for battery charging, Kb is connected with Kb2, and B2, B3 connection, the direct current after rectification is through polydisc axial flux permanent magnet synchronous motor stator winding and three-phase H The three-phase Buck crisscross parallel circuit of bridge composition realizes decompression.
In addition, recording each disk stator winding respectively by big data management and being in rectification in charging mode and interlock Time in parallel, rectification and the stator winding of crisscross parallel are allocated when to charging, so that stator winding remaining life It is consistent, guarantees motor whole service life.
The device has more advantages: switch uses electronic relay, and rapidly, the response time is short for switching, and accuracy is high；It drives It is dynamic to be multiplexed with charging main circuit, save space；Using polyaxial flux electric machine, larger torque can be obtained under drive mode, is opened It is dynamic rapider, inductance in circuit topology is served as using motor stator winding under charge mode, multiple groups stator winding crisscross parallel mentions Charging current levels and charge efficiency are risen, charging rate is accelerated；The effect of changeable stator winding in charging mode, it can All stator winding are made to rectify, extension motor almost average with the time under crisscross parallel state in the work of different charge cycles Whole service life.`
In addition, the structure can be also extended, 2n (n > 2) coil motor is used.If n is even number, wherein n disk is rectified, and n disk is done Crisscross parallel, wherein in rectification link, n/2 disk stator winding centre cap is connected in any and meets the output of single-phase alternating current positive, n/ 2 disk stator winding centre caps are connected in any and connect single-phase alternating current anti-phase output；If n is odd number, wherein n-1 disk is rectified, n + 1 disk does crisscross parallel, likewise, (n-1)/2 disk stator winding centre cap is connected in any and connects single phase ac in rectification link Electric positive output, (n+1)/2 disk stator winding centre cap are connected in any and connect single-phase alternating current anti-phase output.The extension of electric disc number Current harmonics can be further decreased, charge efficiency is improved.

Claims (4)

1. a kind of vehicle-mounted charge for electric vehicle and driving integrated apparatus, including battery (1), battery side switching network list First (2), three-phase H-bridge unit (3), switching logic control unit (4), polydisc axial flux permanent magnet synchronous motor unit (5), power grid Side switching network unit (6) and charging plug (7), it is characterised in that: the battery (1) connects battery side switching network unit (2), switching logic unit (4) connection battery side switching network unit (2), three-phase H-bridge unit (3), polydisc axial flux permanent magnet Synchronous motor (5), grid side switching network unit (6) and charging plug (7), battery side switching network unit (2) is successively through three Phase H-bridge unit (3), polydisc axial flux permanent magnet synchronous motor (5) and grid side switching network unit (6) connect charging plug (7) it (is illustrated with four stator disc type axial magnetic flux synchronous motors), the battery side switching network unit (2) mainly controls The switching of charging and drive mode；The three-phase H-bridge unit is at any driving condition by battery output DC inversion at three intersections Stream supply polydisc axial flux permanent magnet synchronous motor unit (5), in the charge state with polydisc axial flux permanent magnet synchronous motor Unit (5) stator winding own inductance constitutes polyphase rectifier circuit and multiphase separate current controls crisscross parallel circuit, realizes electricity Charging of the net to battery；The switching logic control unit is by voltage sensor (4-1), A/D conversion module (4-2), vehicle Manager (4-3), DSP control unit (4-4) driving circuit (4-5) composition, the voltage sensor (4-1), which detects two stators, is No connection powers on, and sends a signal to vehicle manager (4-3) through A/D conversion module (4-2)；The vehicle manager (4-3) Signal is handled, each switch on and off is controlled, to switch driving and charge mode, DSP control unit (4-4) is produced under driving condition Raw pwm signal passes through driving circuit (4-5) to three-phase H-bridge unit (3)；The grid side switching network (6) is for controlling rectification The distribution of stator inductance and crisscross parallel stator inductance；The structure of battery side switching network unit (2) is described, that is, includes control Circuit connection between the corresponding four groups of single-pole double-throw switch (SPDT)s of four groups of three-phase bridge circuits and these switches, cooperation grid side are opened Close network unit (6) control driving charged state switching together；The structure of three-phase H-bridge unit (3) is described, that is, includes 24 electric power Four groups of three-phase H-bridge circuits of electronic switch, 24 anti-paralleled diodes and 4 dc-link capacitances and these devices composition (3) circuit connection between carries out Frequency conversion control to three-phase bridge circuit in Automobile drive；In automobile charging, electricity Rectification and crisscross parallel electricity of the net electric current by three-phase H-bridge circuit (3) polydisc axial flux permanent magnet synchronous motor unit (5) composition It charges to battery on road；The structure of switching logic control unit (4) is described, that is, includes voltage sensor (4-1), A/D turns Between mold changing block (4-2), vehicle manager (4-3), DSP control unit (4-4) and driving circuit (4-5) and these modules Circuit connection, charging plug (7) and dc-link capacitance voltage at three-phase H-bridge unit (3) are detected respectively, at judgement In charging or driving condition, control battery side switching network unit (2), three-phase H-bridge unit (3) and grid side switching network list First (6) interior respective switch generates corresponding actions, and it is electrically operated to carry out charge and discharge；Polydisc axial flux permanent magnet synchronous motor unit is described (5) structure, i.e., between four groups of stator winding and these stator winding including four stator disc type axial magnetic flux synchronous motors Circuit connection, serve as rectification with four groups of stator winding of four stator disc type axial magnetic flux synchronous motors and crisscross parallel circuit be big Inductance realizes charging current and battery charging current ratings match and promotes charge power grade；It describes grid side and switchs net The structure of network unit (6) includes the electricity between two single-pole double-throw switch (SPDT)s and two single-pole single-throw switch (SPST)s and these switches Road connection, cooperation battery side switching network unit (2) control driving charged state switching together.
2. vehicle-mounted charge and driving integrated apparatus for electric vehicle according to right 1, it is characterised in that: by electric car Driving combined with charging circuit topology, charging circuit is mounted in electric car, independent charging unit is saved, it is real Existing integration.
3. vehicle-mounted charge and driving integrated apparatus for electric vehicle according to right 1, it is characterised in that: utilize polydisc axis Crisscross parallel buck charging circuit is controlled to flux permanent magnet synchronous motor stator winding own inductance composition multiphase separate current The matching for realizing charging voltage and battery voltage rating, collectively forms high-precision low ripple with rectification circuit in claim 2 Charging system.
4. vehicle-mounted charge and driving integrated apparatus for electric vehicle according to right 1, it is characterised in that: pass through big data Management classification records every dish axle to the flux permanent magnet synchronous motor stator winding working condition time, when rationally being charged rectification with The stator winding of crisscross parallel distributes, and carries out service life optimal control, extends motor whole service life, makes each disk duty cycle base This is identical.
CN201910810893.9A 2019-08-30 2019-08-30 A kind of vehicle-mounted charge for electric vehicle and driving integrated apparatus Pending CN110492578A (en)

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Application publication date: 20191122