CN208947111U - Distributed bidirectional for electric car drives rechargeable electrical energy transformation system - Google Patents
Distributed bidirectional for electric car drives rechargeable electrical energy transformation system Download PDFInfo
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- CN208947111U CN208947111U CN201821688034.4U CN201821688034U CN208947111U CN 208947111 U CN208947111 U CN 208947111U CN 201821688034 U CN201821688034 U CN 201821688034U CN 208947111 U CN208947111 U CN 208947111U
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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 distributed bidirectional that the utility model discloses a kind of for electric car drives rechargeable electrical energy transformation system, in the system, main control unit module and bidirectional DC/DC module, two two-way DCAC modules, motor control switch and exchanges control switch and is separately connected；High-tension battery is connect with bidirectional DC/DC module, and two two-way DCAC modules are separately connected with bidirectional DC/DC module, motor control switch and PFC PFC power inductance；Motor includes a six phase alternating current generators or two three phase alternating current motors；AC charging socket includes two three-phase alternating current charging sockets.In the technical solution of the utility model, the high-power charging of rush-harvesting and rush-planting can be carried out to electric car, and drive a six-phase motor or two three-phase motors simultaneously, improve electrical automobile charge power, meet the demand of the electric car with different driving design of electrical motor.
Description
Technical field
The utility model relates to electric vehicle engineering fields, in particular to a kind of distribution for electric car
Bi-directional drive rechargeable electrical energy transformation system.
Background technique
With the enhancing of environmental consciousness, atmospheric warming environment with current rigorous, the pure electric vehicle vapour of environmentally protective zero-emission
Vehicle becomes the main flow direction of China Automobile Industry, and Development of EV has become the strategic of China's automobile industry, however new
Emerging electric car industry development is also faced with the practical problem of some applications, especially in higher course continuation mileage and faster
In terms of the more convenient and fast charge requirement of speed.
The electric car charging scheme of mainstream is that single phase ac charges and direct current quick charge at present, wherein AC charging function
Rate is that the charging time of 3.3KW or 6.6KW product is longer；DC charging power averaging be 35KW, can barely meet demand, but
The construction cost at DC charging station is higher, and needs to occupy more floor area, thus promotion and popularization have great difficulty comprehensively, no
The use demand for being able to satisfy quick charge and continuously runing.
In addition, thering is entrucking or Dual-motors Driving vehicle on some special vehicles such as environmental sanitation to need to design two controls at present
Device and motor, this makes vehicle increased costs, space waste, and because system complex causes system reliability to reduce.
It should be noted that information is only used for reinforcing the background to the utility model disclosed in above-mentioned background technology part
Understanding, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Utility model content
The purpose of this utility model is to provide a kind of distributed bidirectional driving rechargeable electrical energy transformation for electric car
System for improving dynamic electric car charge power, and meets the demand with the electric car of different driving design of electrical motor.
The purpose of this utility model is achieved by following technical proposals:
A kind of distributed bidirectional driving rechargeable electrical energy transformation system for electric car, a kind of point for electric car
Cloth bi-directional drive rechargeable electrical energy transformation system, including high-tension battery, two-way DC-DC DCDC module, motor driving loop,
AC charging circuit, two bidirectional, dcs-exchange DCAC module and the control system carry out drive mode and charge mode
The main control unit module of switching, in which: the motor driving loop includes the motor control switch and motor being connected；The friendship
Current charge circuit includes sequentially connected PFC PFC power inductance, exchange control switch and AC charging socket；Institute
State main control unit module and the bidirectional DC/DC module, described two two-way DCAC modules, the motor control switch and institute
Exchange control switch is stated to be separately connected；The high-tension battery is connect with the bidirectional DC/DC module, described two two-way DCAC moulds
Block is separately connected with the bidirectional DC/DC module, the motor control switch and the PFC power inductance；The motor includes
One six phase alternating current generator or two three phase alternating current motors；The AC charging socket includes two three-phase alternating current charging sockets.
It further include the direct current preliminary filling module being pre-charged to the capacitor in the bidirectional DC/DC module in above scheme,
One end of the direct current preliminary filling module is connected with the anode of the high-tension battery, the other end of the direct current preliminary filling module with it is described
First DC terminal of bidirectional DC/DC module is connected.
In above scheme, the direct current preliminary filling module further include: first contactor, the first preliminary filling resistance and the second contact
Device, the second contactor are connected between the positive and described bidirectional DC/DC module of the high-tension battery；First contact
Device is in parallel with the second contactor after connecting with the first preliminary filling resistance；The control terminal of the first contactor and described
The control terminal of two contactors is connect with the main control unit module respectively；The direct current preliminary filling module and the high-tension battery are integrated
It is integrated.
In above scheme, the bidirectional DC/DC module further include: first capacitor device, the first inductance, first switch component,
Two switch blocks, the second capacitor；Second capacitor is connected in parallel on the second DC terminal of the bidirectional DC/DC module；Described
One switch block is in parallel with second capacitor after connecting with the second switch component；The first capacitor device is connected in parallel on institute
State the first DC terminal of bidirectional DC/DC module；First inductance connection connects the high-tension battery in the first capacitor device
The side of anode, between the first switch component and the tie point of second switch component.
In above scheme, the two-way DCAC module includes six third switch blocks, each third switch block
Including a switching tube and with the antiparallel diode of the switching tube, in which: every two third switch block series connection be one
A branch；The DC terminal of the two-way DCAC module is connected to after three branch circuit parallel connections；The midpoint of each branch is each
A phase from the three-phase alternating current end for connecting the two-way DCAC module.
In above scheme, the motor control switch includes the three-phase for being connected on a two-way DCAC module respectively
The 5th contactor, the 6th contactor, the 7th contactor between each phase and the motor at end are exchanged, and is connected on respectively
The 8th contactor, the 9th contactor and the tenth between the three-phase alternating current end and the motor of another two-way DCAC module
Contactor.
In above scheme, the exchange control switch includes the three-phase alternating current for being connected on two two-way DCAC modules respectively
Third relay and the 4th relay between end and AC charging socket；The third relay and the 4th relay are three-phase
Ac solid relay, the 3 phase AC solid relay include three groups of power contacts.
In above scheme, the PFC power inductance includes three intersections for being connected on a two-way DCAC module respectively
The second inductance L2, third inductance L3 and the 4th inductance L4 between end and the AC charging socket are flowed, and is connected on respectively
The 5th inductance L5, the 6th inductance between the three-phase alternating current end and the AC charging socket of another two-way DCAC module
L6 and the 7th inductance L7.
In above scheme, the main control unit module and the bidirectional DC/DC module, described two two-way DCAC modules, institute
It states motor control switch to be separately connected with the control terminal for exchanging control switch, controls the bidirectional DC/DC module, described two
A two-way DCAC module, the motor control switch exchange control switch work with described；Wherein, driving is in the system
When mode, the two-way DCAC module is DCAC converter, the motor control switch closure, and the exchange control switch is disconnected
It opens；When the system is in charge mode, the two-way DCAC module is ACDC converter, and the exchange control switch is closed
It closes, the motor control switch disconnects.
Utility model also provides a kind of electric car, and the electric car includes in above-mentioned technical proposal for electronic vapour
The distributed bidirectional of vehicle drives rechargeable electrical energy transformation system.
Technical solution provided by the embodiment of the utility model can include the following benefits:
Technical solution provided by a kind of exemplary embodiment of the utility model compared with prior art, has following effect
Fruit: it can be achieved directly to carry out the high-power charging of rush-harvesting and rush-planting to electric car using three-phase alternating current, and one six can be driven simultaneously
Phase motor or two three-phase motors, shorten the charging time, improve electric car charge power, and meet with difference
The demand of the electric car of driving motor design.
When understanding, above general description and following detailed description be only it is exemplary and explanatory, can not
Limit the utility model.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.It should be evident that the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the distributed bidirectional provided by the embodiment of the utility model for electric car drives rechargeable electrical energy transformation series
The block diagram of system；
Fig. 2 is that a kind of distributed bidirectional driving rechargeable electrical energy for electric car provided by the embodiment of the utility model becomes
Change the partial circuit diagram of system；
Fig. 3 is another distributed bidirectional driving rechargeable electrical energy for electric car provided by the embodiment of the utility model
The partial circuit diagram of transformation system.
Specific embodiment
Illustrative embodiments are described more fully with reference to the drawings.However, illustrative embodiments can be with more
Kind form is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the utility model
Will be more full and complete, and the design of illustrative embodiments is comprehensively communicated to those skilled in the art.Phase in figure
Same appended drawing reference indicates same or similar structure, thus the detailed description that will omit them.
Term "one", " one ", " described " to indicate there are one or more elements/component part/etc.；Term " packet
Include " and " having " to indicate the open meaning being included and refer to that the element/component part/in addition to listing waits it
Outside also may be present other element/component part/etc..
The utility model is described in further detail below by specific embodiment and in conjunction with attached drawing.
As shown in Figure 1, the distributed bidirectional provided by the embodiment of the utility model for electric car drives rechargeable electrical energy
Transformation system, including high-voltage battery module 102, two-way DC-DC (DCDC) module 104, motor driving loop, AC charging
Circuit is exchanged with two bidirectional, dcs-in the i.e. two-way DCAC module 105 of (DCAC) module, two-way DCAC module 106 and control
State the main control unit module 101 that system carries out drive mode and charge mode switching, in which: motor driving loop includes being connected
Motor control switch 113 and motor 114；AC charging circuit includes sequentially connected PFC (PFC) power electricity
Sense, exchange control switch and AC charging socket；Main control unit module 101 and 104, two two-way DCAC of bidirectional DC/DC module
Module, motor control switch 113 and exchange control switch are separately connected；High-tension battery 102 and bidirectional DC/DC module 104 connect
It connects, two two-way DCAC modules are separately connected with bidirectional DC/DC module 104, motor control switch 113 and PFC power inductance；
Motor 114 can be a six phase alternating current generators or two three phase alternating current motors；AC charging socket can be two three intersections
Current charge socket, that is, AC charging socket 111 and AC charging socket 112.
Here, the quantity in AC charging circuit is two.As shown in Figure 1, one of AC charging circuit includes successively
The PFC power inductance 107 of connection, exchange control switch 109 and AC charging socket 111, another AC charging circuit include
Sequentially connected PFC power inductance 108, exchange control switch 110 and AC charging socket 112.
Using the program, may be implemented directly to carry out the high-power charging of rush-harvesting and rush-planting to electric car using three-phase alternating current, and
A six-phase motor or two three-phase motors are driven simultaneously, can shorten the charging time, improve electrical automobile charge power, and
Meet the demand with the electric car of different driving design of electrical motor.
The system carries out the switching of drive mode and charge mode under the control of main control unit module 101；At the system
When drive mode, motor control switch 113 is closed, and exchange control switch disconnects, two two-way DCAC module drive motor works
Make；When system is in charge mode, exchange control switch closure, motor control switch 113 is disconnected, and external three-phase alternating-current supply is logical
AC charging socket is crossed to two-way DCAC module inputing power.
Specifically, in the utility model embodiment, main control unit module 101 and bidirectional DC/DC module 103, two are double
It is separately connected to DCAC module, motor control switch 113 with the control terminal for exchanging control switch, control bidirectional DC/DC module 103,
Two two-way DCAC modules, motor control switch 113 and exchange control switch work；Wherein, when system is in drive mode,
Two-way DCAC module is DCAC converter, and motor control switch 113 is closed, and exchange control switch disconnects；Charging is in system
When mode, two-way DCAC module is ACDC converter, exchange control switch closure, the disconnection of motor control switch 113.
Hereinafter, according to circuit diagram to the distributed bidirectional driving charging electricity for electric car of the utility model embodiment
Energy transformation system is described in detail.
As shown in Fig. 2, the distributed bidirectional driving rechargeable electrical energy for electric car becomes in the utility model embodiment
The system of changing further includes the direct current preliminary filling module 201 being pre-charged to the capacitor in bidirectional DC/DC module 202, direct current preliminary filling module
201 one end is connected with the anode of high-voltage battery module HV-Battery, the other end of direct current preliminary filling module 201 with it is two-way
First DC terminal of DCDC module 202 is connected.
Specifically, as shown in Fig. 2, direct current preliminary filling module 201 further include: first contactor K1, the first preliminary filling resistance R1 and
Second contactor K2, second contactor K2 are connected between the anode of high-tension battery HV-Battery and bidirectional DC/DC module 202；
First contactor K1 is in parallel with second contactor K2 after connecting with the first preliminary filling resistance R1.Here, direct current preliminary filling module 201 can
To become one with high-tension battery HV-Battery, in order to assemble.
Here, main control unit module (being not shown in Fig. 2) is connect with the control terminal of the control terminal of K1 and K2 respectively, control
The on-off of K1 and K2.
In above scheme, bidirectional DC/DC module 202 further include: first capacitor device C1, the first inductance L1, first switch group
Part, second switch component, the second capacitor C2；Second capacitor C2 is connected in parallel on the second DC terminal of bidirectional DC/DC module 202；
First switch component is in parallel with the second capacitor C2 after connecting with second switch component；First capacitor device C1 is connected in parallel on two-way
First DC terminal of DCDC module 202；First inductance L1 is connected to first capacitor device C1 connection high-tension battery HV-Battery's
The side of anode, between first switch component and the tie point of second switch component.Here, first switch component is by switching tube
It Q1 and is formed with the antiparallel diode D1 of switching tube Q1, second switch component is anti-by switching tube Q2 and with switching tube Q2
Diode D2 composition in parallel.Switching tube Q1 and Q2 can be insulated gate bipolar transistor.
Here, main control unit module (being not shown in Fig. 2) is connect with the control terminal of Q1 and Q2 respectively, controls Q1 and Q2 work
Make.
As shown in Fig. 2, two-way DCAC module 203 includes six third switch blocks, each third switch block includes one
A switching tube and with the antiparallel diode of switching tube, this six third switch blocks include: by switching tube Q3 and diode
The third switch block of D3 composition, the third switch block of switching tube Q4 and diode D4 composition, switching tube Q5 and diode D5
The third switch block of composition, the third switch block of switching tube Q6 and diode D6 composition, switching tube Q7 and diode D7 group
At third switch block, switching tube Q8 and diode D8 composition third switch block.Wherein: every two third switch block
Series connection is a branch；The DC terminal of two-way DCAC module 203 is connected to after three branch circuit parallel connections；The midpoint of each branch is respectively
Connect the phase in the three-phase alternating current end of two-way DCAC module.The above switching tube all can be insulated gate bipolar transistor.
Here, main control unit module (being not shown in Fig. 2) is connect with the control terminal of Q3, Q4, Q5, Q6, Q7 and Q8 respectively,
Control Q3, Q4, Q5, Q6, Q7 and Q8 work.
Two-way DCAC module 204 is identical as two-way 203 structure of DCAC module.
As shown in Fig. 2, motor control switch include be connected on respectively a two-way DCAC module three-phase alternating current end it is every
The 5th contactor K5, the 6th contactor K6, the 7th contactor K7 between one phase and motor, and it is connected on another pair respectively
To the 8th contactor K8, the 9th contactor K9 and the tenth contactor K10 between the three-phase alternating current end of DCAC module and motor.
Here, main control unit module (being not shown in Fig. 2) is connect with the control terminal of K5, K6, K7, K8, K9 and K10 respectively,
Control the on-off of K5, K6, K7, K8, K9 and K10.
As shown in Fig. 2, exchange control switch includes being connected on the three-phase alternating current end of two two-way DCAC modules respectively and handing over
Third relay K3 and the 4th relay K4 between current charge socket；Third relay K3 and the 4th relay K4 is three-phase
Ac solid relay, 3 phase AC solid relay include three groups of power contacts.
Here, main control unit module (being not shown in Fig. 2) is connect with the control terminal of K3 and K4 respectively, and control K3's and K4 is logical
It is disconnected.
As shown in Fig. 2, PFC power inductance include be connected on respectively the three-phase alternating current end of a two-way DCAC module with exchange
The second inductance L2, third inductance L3 and the 4th inductance L4 between charging socket, and it is connected on another two-way DCAC respectively
The 5th inductance L5, the 6th inductance L6 and the 7th inductance L7 between the three-phase alternating current end and AC charging socket of module.
As shown in Fig. 2, motor includes 207 two motors of three-phase motor 206 and three-phase motor, wherein three-phase motor 206
Three-phase alternating current end is separately connected motor control switch K5, K6, K7；The three-phase alternating current end of three-phase motor 207 is separately connected motor control
Make switch K8, K9, K10.
As shown in Fig. 2, AC charging socket includes the AC charging socket 205 respectively at exchange control switch K3 connection,
Another AC charging socket 208 being connect with exchange control switch K4.
Here, main control unit module (being not shown in Fig. 2) respectively with AC charging socket 205 and AC charging socket 208
Low-voltage signal output end connection, receive charging socket in low-voltage signal.
The order of main control unit module low-voltage signal or entire car controller based on the received carries out the judgement of operating mode.
For example, when the charging gun of electric car is connect with AC charging socket 205 or AC charging socket 208, charging
It, can be by system after the low-voltage signal of rifle can activate the low-voltage control power in main control unit module, main control unit module to power on
Operating mode is switched to charge mode.This system is adapted to three-phase 63A friendship there are two the tools for meeting GBT18487-2015 version national standard
Flow the charging pile of rifle.
Later, main control unit module detects that two charging guns are connected to the system, by pwm signal in charging gun with
Charging pile carries out information exchange, understands the power supply capacity of charging pile；Main control unit module determines each sensor of system and function mould
It after block self-test fault-free, is switched to first contactor K1 and sends close command, make first contactor switch K1 closure to be
High pressure of uniting precharge, control contactor K2 is closed again after the completion of high pressure precharge.
Later, the BOOST function of main control unit module starting bidirectional DC/DC module 202, passes through first capacitor device C1, first
Inductance L1, second switch Q2, first diode D1 and the second capacitor C2 realize BOOST function, to the second capacitor C2 voltage
It boosts；Main control unit module controls third contactor K3 and the 4th contactor K4 closure, and controls PWM communication control switch
Closure makes the pwm signal of 9V be transformed to the pwm signal of 6V, and charging pile can be closed in charging pile after detecting the pwm signal of 6V
A.C. contactor, three-phase alternating current can enter transformation system by AC charging socket, close bidirectional DC/DC module 202 at this time
BOOST function.
Later, main control unit module passes through the battery management system of controller local area network (CAN) communication mode and vehicle
(BMS), entire car controller (VCU) carries out data interaction, understands the real time charging demand of high-tension battery HV-Battery, master control list
Element module starts two-way DCAC module 203 first and two-way DCAC module 204 carries out PFC rectification and voltage stabilizing function, restarts double
To the BUCK function of DCDC module 202, by first capacitor device C1, the first inductance L1, first switch Q1, the second diode D2 and
Second capacitor C2 constitutes BUCK circuit.The BUCK circuit may be implemented to take electricity from AC network power supply, to on-board high-voltage battery
HV-Battery charges.
Wherein, fully charged when there is high-tension battery HV-Battery, high-tension battery HV-Battery or other operation components
Break down or charging pile artificially stop charging process operation the case where when, need to terminate charging.At this moment, main control unit mould
Block is first shut off bidirectional DC/DC module 202, is then shut off two-way DCAC module, makes PWM by closing PWM communication control switch
Signal becomes 9V signal, and charging pile closes internal communication contactor after detecting 9V signal, and main control unit module is detecting friendship
After flowing input voltage signal cutting, K3 and K4 contactor is disconnected, and enter suspend mode.
Based on above scheme, this system may be implemented to take electricity from AC network, to on-board high-voltage battery HV-Battery into
The charging of row rush-harvesting and rush-planting.
When system carries out drive mode, main control unit module activates upper low tension by driving wake-up signal, passes through CAN
Communication carries out driving operating mode confirmation with VCU, is then closed motor control switch K5, K6, K7 and K8, K9, K10, at this moment, respectively
A module self-test fault-free then waits high pressure to power on, and main control unit module control contactor K1 first closure carries out high pressure preliminary filling
Electricity controls control contactor K2 closure again after the completion of high pressure precharge.
Further, the BOOST function of main control unit module starting bidirectional DC/DC, the voltage stabilization of high-voltage capacitance C2 is arrived
Setting value, when VCU send motor operation instruction after, two two-way DCAC modules work, by PWM modulation control mode into
The real-time control of row motor.
Based on above scheme, this system can promote busbar voltage, and motor is configurable to two three-phase high-voltage motors.
As shown in figure 3, another distributed bidirectional driving for electric car provided by the embodiment of the utility model is filled
Electric electrical conversion systems, motor are a six-phase motor 301.Rest part and the distribution for electric car as described in Figure 2
Formula bi-directional drive rechargeable electrical energy transformation system is identical.
The program facilitates being further reduced for motor volume, and further lifting system power density is answered with vehicle space
With.
The utility model also provides a kind of electric car, which includes in above-mentioned technical proposal for electronic vapour
The distributed bidirectional of vehicle drives rechargeable electrical energy transformation system.
Distributed bidirectional driving rechargeable electrical energy transformation system provided by the embodiment of the utility model for electric car and
Electric car, which can satisfy, reaches the AC charging power of rush-harvesting and rush-planting 80KW under the requirement of existing charging national standard, solves current charging
Slower status, and the vehicle of multiphase or multiple motors is supported to arrange needs.
Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and including undocumented skills of the utility model
Common knowledge or conventional techniques in art field.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are indicated by the following claims.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (10)
1. a kind of distributed bidirectional for electric car drives rechargeable electrical energy transformation system, which is characterized in that including high-voltage electricity
Pond, two-way DC-DC DCDC module, motor driving loop, AC charging circuit, two bidirectional, dcs-exchange DCAC module
And the control system carries out the main control unit module of drive mode and charge mode switching, in which:
The motor driving loop includes the motor control switch and motor being connected；
The AC charging circuit includes sequentially connected PFC PFC power inductance, exchange control switch and exchanges
Charging socket；
The main control unit module and the bidirectional DC/DC module, described two two-way DCAC modules, the motor control switch
And the exchange control switch is separately connected；
The high-tension battery is connect with the bidirectional DC/DC module, described two two-way DCAC modules and the bidirectional DC/DC mould
Block, the motor control switch and the PFC power inductance are separately connected；
The motor includes a six phase alternating current generators or two three phase alternating current motors；
The AC charging socket includes two three-phase alternating current charging sockets.
2. system according to claim 1, which is characterized in that further include being carried out to the capacitor in the bidirectional DC/DC module
The direct current preliminary filling module of precharge, one end of the direct current preliminary filling module are connected with the anode of the high-tension battery, the direct current
The other end of preliminary filling module is connected with the first DC terminal of the bidirectional DC/DC module.
3. system according to claim 2, which is characterized in that the direct current preliminary filling module further include: first contactor,
One preliminary filling resistance and second contactor, the second contactor are connected to the anode and the bidirectional DC/DC mould of the high-tension battery
Between block；The first contactor is in parallel with the second contactor after connecting with the first preliminary filling resistance；
The control terminal of the control terminal of the first contactor and the second contactor is connect with the main control unit module respectively；
The direct current preliminary filling module becomes one with the high-tension battery.
4. system according to claim 1, which is characterized in that the bidirectional DC/DC module further include: first capacitor device,
One inductance, first switch component, second switch component, the second capacitor；
Second capacitor is connected in parallel on the second DC terminal of the bidirectional DC/DC module；
The first switch component is in parallel with second capacitor after connecting with the second switch component；
The first capacitor device is connected in parallel on the first DC terminal of the bidirectional DC/DC module；
First inductance connection connects the side of the anode of the high-tension battery in the first capacitor device, opens with described first
It closes between component and the tie point of second switch component.
5. system according to claim 1, which is characterized in that the two-way DCAC module includes six third switching groups
Part, each third switch block include a switching tube and with the antiparallel diode of the switching tube, in which:
The series connection of every two third switch block is a branch；
The DC terminal of the two-way DCAC module is connected to after three branch circuit parallel connections；
The midpoint of each branch respectively connects the phase in the three-phase alternating current end of the two-way DCAC module.
6. system according to claim 1, which is characterized in that the motor control switch includes being connected on an institute respectively
State the 5th contactor, the 6th contactor, the 7th between each phase and the motor at the three-phase alternating current end of two-way DCAC module
Contactor, and what is be connected between the three-phase alternating current end and the motor of another two-way DCAC module respectively the 8th connect
Tentaculum, the 9th contactor and the tenth contactor.
7. system according to claim 1, which is characterized in that the exchange control switch includes being connected on two pairs respectively
Third relay and the 4th relay between the three-phase alternating current end and AC charging socket of DCAC module；The third relay
Device and the 4th relay are 3 phase AC solid relay, and the 3 phase AC solid relay includes three groups of power contacts.
8. system according to claim 1, which is characterized in that the PFC power inductance includes being connected on an institute respectively
State the second inductance L2, the third inductance L3 and the 4th between the three-phase alternating current end of two-way DCAC module and the AC charging socket
Inductance L4, and be connected between the three-phase alternating current end and the AC charging socket of another two-way DCAC module respectively
The 5th inductance L5, the 6th inductance L6 and the 7th inductance L7.
9. system according to any one of claims 1 to 8, which is characterized in that the main control unit module with it is described two-way
DCDC module, described two two-way DCAC modules, the motor control switch and the control terminal difference for exchanging control switch
Connection, controls the bidirectional DC/DC module, described two two-way DCAC modules, the motor control switch with described and exchanges control
Switch work；
Wherein, when the system is in drive mode, the two-way DCAC module is DCAC converter, and the motor control is opened
It closes and closes, the exchange control switch disconnects；
When the system is in charge mode, the two-way DCAC module is ACDC converter, and the exchange control switch is closed
It closes, the motor control switch disconnects.
10. a kind of electric car, which is characterized in that the electric car include wanted such as right 1 to 9 it is described in any item for electricity
The distributed bidirectional of electrical automobile drives rechargeable electrical energy transformation system.
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