CN106740152A - A kind of electric automobile uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap - Google Patents
A kind of electric automobile uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap Download PDFInfo
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- CN106740152A CN106740152A CN201610974693.3A CN201610974693A CN106740152A CN 106740152 A CN106740152 A CN 106740152A CN 201610974693 A CN201610974693 A CN 201610974693A CN 106740152 A CN106740152 A CN 106740152A
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/30—Electric propulsion with power supplied within the vehicle using propulsion power stored mechanically, e.g. in fly-wheels
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- 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
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- 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 provides the vehicle-mounted integrated form charge-discharge circuit that a kind of electric automobile uses shunting tap, using the existing circuit in electric automobile inside and additional device, including two motor stator windings, two motor inverter circuits, cooling, mechanical device etc., add stator winding shunting tap, are controlled by the switch of contactor, change inductance value in circuit, to adapt to charge power；Wherein, constitute variable inductance with the 5th group of contactor by the rectification side motor stator winding containing shunting tap and combine 1, constituting variable inductance with the 6th group of contactor by the straight change side change motor stator winding containing shunting tap combines 2；In addition it is also necessary to add the contactor for switching discharge and recharge；The circuit improves the integrated level of electric automobile internal circuit, reduces cost, increases internal available space, increased the comfort level of user.
Description
Technical field
The present invention relates to the vehicle-mounted integrated form charge-discharge circuit that a kind of electric automobile uses shunting tap, the circuit is for being
The energy storage device of electric automobile charges, while taking into account energy storage device for motor is powered.
Background technology
Charger in electric automobile charges as batteries of electric automobile fast and flexible and promotes electric vehicle engineering to enter
One of step and its critical component of marketing, key and restriction of its cost, volume, weight and performance as its exploitation
Factor.
According to charging circuit and the relation of motor-drive circuit, charger is divided into stand alone type and integrated form in current vehicle.Solely
Vertical charging device is completely self-contained charging device, is input into by the phase of external communication 3 or single phase power supply, and charger is translated into
Meet the direct current of battery rechargeable standard, complete charge function；Integrated form charging device is on existing motor inverter basis
The extra contactor of upper increase and electric power electronic module (such as switching device, drive circuit, processor and its peripheral circuit etc.) are real
Existing charge function, its part reduces cost, volume and weight, and exchange input condition charges with direct current output specification with stand alone type
Device is similar to.
Some vehicle-mounted integrated form charge-discharge circuits constitute charge-discharge circuit, in order to carry by the way of additional inductance coil
The integrated level of circuit high, can use motor stator winding as the inductance of charging circuit, but the inductance value of the winding is larger,
It is unfavorable for using, it is necessary to consider that some methods reduce the inductance value, with the need for being adapted to and charging.
The content of the invention
It is an object of the invention to provide a kind of electric automobile using the vehicle-mounted integrated form charge-discharge circuit of shunting tap, utilize
Stator winding improves the integrated level of vehicle electronic circuit, while solving adaptability problem of the winding inductance value to charge power.
In order to achieve the above object, the embodiment of the present invention provides a kind of vehicle-mounted integrated form of electric automobile using shunting tap
Charge-discharge circuit, including：1. the rectification side motor stator winding and connected inverter circuit of shunting tap are contained；2. containing tap
Straight change side change motor stator winding and the connected inverter circuit of tap；3. rectification side motor inverter and straight conversion
Decoupling capacitance between the motor inverter of side；4. charging inlet, such as three-phase alternating current charging inlet, single phase ac charging inlet；⑤
In-car energy storage device, such as：Super capacitor, battery, flywheel energy storage, air compressed energy-storage etc..
Wherein, the rectification side motor, the motor connected for the three-phase bridge of rectification when referring to charging；The straight conversion
Side motor, is used for the motor of the three-phase bridge connection of straight conversion (DC/DC) when referring to charging；The two motors are not limited to drive
Motor, or compressor of air conditioner, or meet other motors on the electric automobile of the circuit condition.
Wherein, the charge-discharge circuit of the vehicular charge power self adaptation also includes：First group of contactor, is connected to institute
Rectification side motor stator winding is stated, for cutting off or turning on the AC power interface；Second group of contactor, is connected to described whole
Stream side motor stator winding, the Y-connection for cutting off or turning on the motor stator winding；3rd group of contactor, even
Energy storage device positive pole is connected to, the connection for cutting off or turning on energy storage device and the motor inverter switches charge and discharge
Circuit connection under state；4th group of contactor, is connected to the straight change side change machine winding neutral point, for realizing charging
Buck conversion that parallel connection Buck in the tunnels of Shi tri- is converted or three tunnels interlock；5th group of contactor, is connected to the rectification side motor and determines
The shunting tap of sub- winding, adjusts rectification side circuit inductance values during for charging；6th group of contactor, is connected to the straight change
The shunting tap of side change motor stator winding, adjusts straight conversion lateral circuit inductance value during for charging；The decoupling capacitance connects
It is connected between the rectification side motor inverter and the straight change side change motor inverter, for voltage stabilizing.
Wherein, the rectification side motor stator winding containing shunting tap constitutes variable inductance with the 5th group of contactor
Combination 1, is controlled, thus it is possible to vary inductance value, by the switch of contactor for adapting to different charge powers.Similarly, it is described to contain
Straight change side change motor stator winding and the 6th group of contactor of shunting tap constitute variable inductance and combine 2.
Wherein, the contactless contactor state in the variable inductance combination 1, depending on the charging of user or designer
Set value of the power；When needing high-power, by the on off state for setting contactor so that variable inductance combination 1 it is total
Inductance value reduces；Conversely, then increasing.Contactless contactor state in variable inductance combination 2, depending on user or sets
The charge power setting value of meter person；When needing high-power, by the on off state for setting contactor so that the variable inductance
The total inductance value of combination 2 reduces；Conversely, then increasing.
Wherein, the tap of the motor stator winding, is a fixed shunting tap for being adapted to charge power, can be with
It is the multiple taps drawn by motor stator winding.
Further, in embodiment, the variable inductance combination 1 and the rectification side motor inverter circuit are constituted and risen
Voltage rectifier, realizes inductance coil with power Auto-matching, PWM rectification functions, boost in voltage function and input current
Active power calibration function.
Further, in embodiment, the variable inductance combines 2 and the straight change side change motor inverter circuit structure
Cheng Sanlu Buck circuits, realize that the power adaptive based on three tunnels parallel connection Buck circuits is directly converted.
Further, in embodiment, the variable inductance combination 1 is connected to external ac power source interface, and it includes three
The individual rectification side motor stator winding being connected on respectively in every phase and the inductance coil 1 for being parallel to three-phase, when the alternating current
When source interface accesses three-phase alternating current, three-phase alternating current combines 1 and the rectification side motor inverter by the variable inductance
Switching device carry out PWM rectifications.
Further, in embodiment, the variable inductance combination 1 is connected to external ac power source interface, and it includes three
The individual rectification side motor stator winding being connected on respectively in every phase and the inductance coil 1 for being parallel to three-phase, when the alternating current
When source interface accesses single phase ac, single-phase alternating current is by corresponding coil and the rectification in variable inductance combination 1
Corresponding switching device carries out PWM rectifications in the motor inverter of side.
Further, in embodiment, (electric automobile during traveling or motor are in when electric automobile is in driving mode
Operate or treat operating condition), described first, fourth, five, six groups of contactors disconnect, second and third group of contactor closure, now
The motor is in can negative load condition (air-conditioning normally runs while meeting electric automobile during traveling)；Electric automobile is in and fills
When electric, second and third group of contactor disconnects, first, fourth group of contactor closure, the charge power demand according to user,
Set the on off state of the 5th group of contactor and the 6th group of contactor.
The electric automobile of the embodiment of the present invention uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, it is proposed that one kind is adopted
With the vehicle-mounted integrated form charge-discharge circuit of shunting tap, i.e., on the basis of current vehicle-mounted integrated form charging circuit, using motor
Stator winding adds stator winding shunting tap as inductance, is controlled by the switch of contactor, changes inductance in circuit
Value, is adapted to the charging requirement of energy storage device, while improve the integrated level of electric automobile internal circuit, reduces cost,
Internal available space is increased, the comfort level of user is increased.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
A kind of embodiment of invention, for those skilled in the art, without having to pay creative labor, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 uses the vehicle-mounted integrated form charge-discharge circuit schematic diagram of shunting tap for the electric automobile of the embodiment of the present invention.
Fig. 2 intersects for the electric automobile of the embodiment of the present invention using the three of the vehicle-mounted integrated form charge-discharge circuit of shunting tap
Current charge equivalent circuit.
Fig. 3 uses the blow-up of the vehicle-mounted integrated form charge-discharge circuit of shunting tap for the electric automobile of the embodiment of the present invention
Current charge equivalent circuit.
Fig. 4 uses electric discharge of vehicle-mounted integrated form charge-discharge circuit of shunting tap etc. for the electric automobile of the embodiment of the present invention
Effect circuit.
Fig. 5 is that motor stator winding fixes shunting tap schematic diagram.
Fig. 6 is motor stator winding multiple shunting tap schematic diagram.
Shown in components listed is listed as follows in accompanying drawing：
01：Single phase poaer supply interface； 02：Three phase mains interface；
11：First group of contactor； 12：Second group of contactor；
13：3rd group of contactor； 14：4th group of contactor；
15：5th group of contactor； 16：6th group of contactor；
21：Rectification side motor； 22：It is straight to become side change motor；
31：Coupled capacitor；
41：Rectification side motor inverter circuit； 42：Rectification side motor inverter circuit；
51：Energy storage device；
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is of the invention main by sharing the composition such as circuit, additional device, additional device, and contactor：
Shared circuit：(1) rectification side motor inverter, including switching device (IGBT or 2OSFET or GTO or IGCT
Deng) and its composition module, triggers circuit, sample circuit, digital processing unit and its peripheral circuit, the power supply of required different voltages
Change-over circuit, etc.；(2) it is straight to become side change motor inverter (identical with rectification side motor inverter)；(3) rectification side motor is determined
Sub- winding becomes side change motor stator winding with straight.
Additional device：(1) machinery and heat abstractor, such as play the automobile frame of mechanical support, and heat radiation cooling device rises
The screw of fixation；Electric capacity of voltage regulation in parallel in the middle of (2) two inverters.
Additional device：(1) rectification side motor stator winding shunting tap；(2) it is straight to become side change motor stator winding tap
Tap.
Contactor：Contactor is mainly used in charging electric vehicle and switches with the circuit of transport condition.
Fig. 1 is the charge-discharge circuit schematic diagram of the vehicle-mounted formula charge power self adaptation of electric automobile of the embodiment of the present invention.Such as
Shown in Fig. 1, the electric automobile in-car charge-discharge circuit of the present embodiment includes：1. between the rectification side motor inverter (41) with
The straight electric capacity C1 (31) become between side change motor inverter (42), for voltage stabilizing；2. first group of contactor (11), is connected to institute
AC power interface (01/02) and the rectification side motor (21) stator winding are stated, for cutting off or turning on the AC power
Interface；3. second group of contactor (12), is connected to rectification side motor (21) stator winding, described whole for cutting off or turning on
Flow the Y-connection of side motor (21) stator winding；4. the 3rd group of contactor (13), is connected to energy storage device (51) positive pole, is used for
Cut-out or conducting energy storage device (51) and the straight connection for becoming side change motor inverter (42), switch charge and discharge state
Under circuit connection；5. the 4th group of contactor (14), is connected to described straight change side change motor stator winding (22) neutral point, uses
In switching charge and discharge state, realize the tunnels of charging Shi tri- parallel connection Buck conversion or three tunnels interlock Buck convert；6. the 5th
Group contactor (15), is connected to the shunting tap of the rectification side motor stator winding (21), and rectification side is adjusted during for charging
Circuit inductance values；7. the 6th group of contactor (16), is connected to the straight shunting tap for becoming side change motor stator winding (22),
Straight conversion lateral circuit inductance value is adjusted during for charging.
In the present embodiment, the existing device of electric automobile：1. rectification side motor inverter (41), are connected to rectification side electricity
Machine stator winding (21), the energy transmission for the energy storage device (51) gives the rectification side motor, or for the friendship
The voltage conversion of stream power interface (01/02) is DC voltage, plays the functions such as rectification, PFC；2. straight conversion
Side motor inverter circuit (42), is connected to straight change side change motor stator winding (22), for the energy storage device (51)
Energy transmission give the rectification side motor (22), or for controlling electric current, voltage when being charged to the energy storage device,
The energy transmission of electric capacity of voltage regulation (31) side is to energy storage device；3. rectification side motor stator winding (21), are connected to the rectification side
Motor inverter (41), for producing electromagnetic torque to drive electric automobile during traveling for the motor (21), or during for rectification
Boosting；4. it is straight to become side change motor stator winding (22), straight change side change motor inverter (42) is connected to, for being institute
Stating the straight side change motor that becomes produces electromagnetic torque to drive electric automobile during traveling, or reduces current ripples during for charging.
Wherein, the rectification side motor, the motor connected for the three-phase bridge of rectification when referring to charging；The straight change
Side change motor, is used for the motor that the three-phase bridge of straight conversion (DC/DC) is connected when referring to charging；The two motors are not limited to
Motor, or compressor of air conditioner, or meet other motors on the electric automobile of the circuit condition.
Wherein, the rectification side motor stator winding containing shunting tap constitutes variable inductance with the 5th group of contactor
Combination 1, is controlled, thus it is possible to vary inductance value, by the switch of contactor for adapting to different charge powers.Similarly, it is described to contain
Straight change side change motor stator winding and the 6th group of contactor of shunting tap constitute variable inductance and combine 2.
Wherein, the contactless contactor state in the variable inductance combination 1, depending on the charging of user or designer
Set value of the power；When needing high-power, by the on off state for setting contactor so that variable inductance combination 1 it is total
Inductance value reduces；Conversely, then increasing.Contactless contactor state in variable inductance combination 2, depending on user or sets
The charge power setting value of meter person；When needing high-power, by the on off state for setting contactor so that the variable inductance
The total inductance value of combination 2 reduces；Conversely, then increasing.
Wherein, the tap of the motor stator winding, is a fixed shunting tap (Fig. 5) for being adapted to charge power,
Can also be the multiple taps (Fig. 6) drawn by motor stator winding.
In the present embodiment, the variable inductance combination 1 is connected to external ac power source by the power interface.When
When the AC power interface accesses three-phase alternating current, three-phase alternating current combines 1 and the rectification side by the variable inductance
The circuit of motor inverter (41) carries out PWM rectifications；When the AC power interface accesses single-phase alternating current, single-phase alternating current
Corresponding coil and corresponding two bridge arm circuits of the rectification side motor inverter (41) in combining 1 by the variable inductance
Carry out PWM rectifications.
When charging, if power interface accesses three-phase alternating current, rectification side motor inverter (41) three phase inverter bridge is equal
Participate in work, realize the function of PWM rectifications, at the same realize the active power factor correction of grid side input current function and
The boost function of inverter bridge output voltage.The basic thought of PWM is, by sinusoidal low-frequency modulated signal in a switch periods
Average value represents with the pulsewidth of amplitude such as a section, the method compared according to sinusoidal signal and triangular signal to topology in it is whole
Six switching devices of stream side motor inverter (41) carry out PWM controls, simultaneously because the energy storage and filtering of variable inductance combination 1
Effect, it is possible to realize that DC output side voltage is than exchange input side line voltage by AC rectification into galvanic function
Boost capability is embodied, while realizing that each phase current of three-phase input basically reaches the PFC of same frequency same-phase with voltage
Function.
If power interface accesses single phase ac, the two-phase in rectification side motor inverter (41) three phase inverter bridge is participated in
Work, correspondence two-way participation work in coupled variable inductance combination 1.Now for single-phase H bridges complete PWM rectifications and liter
Pressure function, while the function of the PFC of input current can also be realized.
During charging, straight six switching devices and six anti-paralleled diodes for becoming side change motor inverter (42)
In, only use three switching devices of upper bridge arm, three anti-paralleled diodes of lower bridge arm, and three inverse parallels of upper bridge arm
Three switching devices of diode and lower bridge arm are in nonconducting state.On one of them the switching device of bridge arm and it is corresponding under
The anti-paralleled diode of bridge arm forms single tube Buck circuits all the way, and then by three switching devices and the phase of lower bridge arm of upper bridge arm
Three anti-paralleled diodes answering constitute three road single tube Buck circuits, the three roads Buck circuits or realize that three switching devices are same
Shi Kaitong simultaneously turns off the Buck in parallel conversion of pattern, or realizes that crisscross parallel Buck is converted.The Buck electricity on each of which road
Road is common single tube Buck reduction voltage circuits.
The mode of operation of the onboard charger of electric car of above-described embodiment is as follows：
1st, when electric automobile is in driving mode (electric automobile during traveling or motor are in operating or treat operating condition),
Contactor 11,14,15,16 disconnect, contactor 12,13 close, now the motor be in can negative load condition (meet electronic
Air-conditioning normally runs while running car), equivalent circuit Fig. 4.
2nd, when electric automobile is in charge mode：
A, when the alternating-current charging interface access three-phase alternating current when, contactor 12,13 disconnect, contactor 11,14 close.
Charge power demand according to user, sets the state of contactor 15,16, equivalent circuit Fig. 2.Three-phase alternating current 02 is accessed such as
Shown in Fig. 2, three-phase alternating current combines the switching device of 1 and the rectification side motor inverter circuit 41 by the variable inductance
PWM rectifications are carried out, it is possible to achieve the requirement of input side current power factor and harmonic wave and the lifting of DC voltage, by institute
After stating intermediate capacitance 31, then 2 are combined by the straight switching device and variable inductance for becoming side change motor inverter circuit 42,
Three tunnels parallel connection Buck functions are realized, or realizes three tunnels staggeredly Buck functions, reach the purpose of step-down, current stabilization, to meet to electricity
The voltage x current requirement that pond is charged.
B, when the alternating-current charging interface access single-phase alternating current when, contactor 12,13 disconnect, contactor 11,14 close.
According to the charge power demand that user is set, the state of contactor 15,16, equivalent circuit Fig. 3 are set.Single-phase alternating current 01 connects
Enter as shown in Figure 3, single-phase alternating current is inverse by the two of which winding and the rectification side motor of variable inductance combination 1
The bridge arm corresponding with winding for becoming circuit 41 carries out PWM rectifications, it is possible to achieve the requirement of input side current power factor and harmonic wave
And the lifting of DC voltage, by the intermediate capacitance 31 after, then straight straight become side change motor inverter circuit by described
42 switching device and variable inductance combination 2, realize three tunnels parallel connection Buck functions, or realize three tunnels staggeredly Buck work(
Can, the purpose of step-down, current stabilization is reached, to meet the voltage x current requirement for charging the battery.
The embodiment of the present invention is the vehicle-mounted integrated form charge-discharge circuit for realizing electric automobile using shunting tap, it is proposed that one
The topological structure containing shunting tap is planted, using the existing part (derailing switch mainly in Power Electronic Circuit in electric automobile
Part, passive element, electronic circuit, the stator winding of motor (21,22), and the motor inverter as described (41,42)
Power switch pipe and its drive circuit and other circuits etc., in addition also cooling system/device, mechanical part etc.), then add
Two motor shunting taps and corresponding contactor, two groups of variable inductance combinations of composition, allow motor stator winding to be electronic
Automobile charges and uses, and improves the integrated level of electric automobile internal circuit, reduces cost, increases internal available sky
Between, increased the comfort level of user.
Apply specific embodiment in the present invention to be set forth principle of the invention and implementation method, above example
Explanation be only intended to help and understand the method for the present invention and its core concept；Simultaneously for those of ordinary skill in the art,
According to thought of the invention, will change in specific embodiments and applications, in sum, in this specification
Appearance should not be construed as limiting the invention.
Claims (8)
1. a kind of electric automobile uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, it is characterised in that the electric automobile
Vehicle-mounted integrated form charge-discharge circuit using shunting tap includes：By the rectification side motor stator winding and the 5th containing shunting tap
The variable inductance combination 1 that group contactor is constituted, by the straight side change motor stator winding that becomes containing shunting tap with described 6th group
The variable inductance combination 2 that contactor is constituted, two motor inverter circuits and controls circuit accordingly, between two motor inversions electricity
Coupled capacitor in the middle of road, energy storage device, alternating-current charging interface；
Wherein, the tap of the motor stator winding, be a fixed shunting tap for being adapted to charge power, or by
Multiple taps that motor stator winding is drawn.
Wherein, the rectification side motor, the motor connected for the three-phase bridge of rectification when referring to charging；The straight change side change electricity
Machine, is used for the motor of the three-phase bridge connection of straight conversion (DC/DC) when referring to charging；The two motors are not limited to drive electricity
Machine, or compressor of air conditioner, or meet other motors on the electric automobile of the circuit condition；
Wherein, the charge-discharge circuit of the vehicle-mounted formula charge power self adaptation of the electric automobile also includes：
First group of contactor, is connected to the rectification side motor stator winding, for cutting off or turning on the AC power interface；
Second group of contactor, is connected to the rectification side motor stator winding, for cutting off or turning on the motor stator
The Y-connection of winding；
3rd group of contactor, is connected to the energy storage device positive pole, for cutting off or turning on the energy storage device with the motor
The connection of inverter, the circuit connection under switching charge and discharge state；
4th group of contactor, is connected to the straight change side change machine winding neutral point, for realizing that the tunnels of charging Shi tri- are in parallel
Buck conversion that Buck is converted or three tunnels interlock；
5th group of contactor, is connected to the shunting tap of the rectification side motor stator winding, and rectification side is adjusted during for charging
Circuit inductance values；
6th group of contactor, is connected to the straight shunting tap for becoming side change motor stator winding, is adjusted during for charging straight
Straight conversion lateral circuit inductance value.
2. electric automobile according to claim 1 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
In the contactless contactor state in the variable inductance combination 1 sets depending on the charge power of user or designer
Value；When needing high-power, by the on off state for setting contactor so that the total inductance value of the variable inductance combination 1 subtracts
It is small；Conversely, then increasing.
3. electric automobile according to claim 1 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
In the contactless contactor state in the variable inductance combination 2 sets depending on the charge power of user or designer
Value；When needing high-power, by the on off state for setting contactor so that the total inductance value of the variable inductance combination 2 subtracts
It is small；Conversely, then increasing.
4. electric automobile according to claim 1 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
When, electric automobile is in driving mode (electric automobile during traveling or motor are in operating or treat operating condition), described the
First, four, five, six groups of contactors disconnect, second and third group of contactor closure, and now be in can be by driving shape for the motor
State (air-conditioning normally runs while meeting electric automobile during traveling)；Electric automobile is in when charging, second and third group of contactor
Disconnect, first, fourth group of contactor closure, the charge power demand according to user sets the 5th group of contactor and institute
State the 6th group of on off state of contactor.
5. electric automobile according to claim 1 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
In the variable inductance combination 1 realizes PWM rectification functions, boost in voltage function jointly with the rectification side motor inverter circuit
And input current active power factor correction function.
6. electric automobile according to claim 1 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
In, variable inductance combination 2 with it is described it is straight become side change motor inverter circuit realize jointly three tunnels Buck in parallel convert or
Three tunnels interlock Buck conversion.
7. electric automobile according to claim 5 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
In the variable inductance combination 1 is connected to external ac power source, and it includes：Three rectifications being connected on respectively in every phase
Side motor stator winding, is parallel to the inductance coil of threephase stator winding, and corresponding contactor respectively；When the friendship
When stream power supply is three-phase input, three-phase alternating current combines 1 and the rectification side motor inverter circuit by the variable inductance
Carry out PWM rectifications.
8. electric automobile according to claim 5 uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap, and its feature exists
In the variable inductance combination 1 is connected to external ac power source, and it includes：Three rectifications being connected on respectively in every phase
Side motor stator winding, is parallel to the inductance coil of threephase stator winding, and corresponding contactor respectively；When the friendship
When stream power supply is single-phase input, single-phase alternating current combines 1 wherein two groups and the rectification side motor by the variable inductance
Corresponding two-way in inverter circuit carries out PWM rectifications.
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| CN201610974693.3A CN106740152A (en) | 2016-11-06 | 2016-11-06 | A kind of electric automobile uses the vehicle-mounted integrated form charge-discharge circuit of shunting tap |
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