CN110341517A - A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system - Google Patents
A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system Download PDFInfo
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- CN110341517A CN110341517A CN201910492008.7A CN201910492008A CN110341517A CN 110341517 A CN110341517 A CN 110341517A CN 201910492008 A CN201910492008 A CN 201910492008A CN 110341517 A CN110341517 A CN 110341517A
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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
- 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
-
- 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
- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
-
- 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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
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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
-
- 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 present invention is suitable for electronic technology field, provide a kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system, wherein, a kind of electric energy bi-directional conversion device, it is connected between alternating current network and motor, it include: energy-storage units, control unit and the converting unit being separately connected with the energy-storage units and described control unit, charging signals are generated by control unit, with electric signal and inversion feedback signal, control converting unit is converted to the target direct current for charging to energy-storage units according to the alternating current that charging signals provide alternating current network, according to electric signal to the direct current that energy-storage units provide be converted to for driving motor work motor, it is converted to according to the direct current that inversion feedback signal provides energy-storage units for being handed over to alternating current network feedback electric energy target Galvanic electricity realizes the circuit multiplexer of inversion feedback and charging/discharging function, reduces the dimension cost of electric vehicle.
Description
Technical field
The invention belongs to electronic technology field more particularly to a kind of electric energy bi-directional conversion device electric energy, electric vehicle and electricity
Motor-car power supply system.
Background technique
With the exploitation of raising and clean energy resource that people realize ecological environmental protection, energy is more and more cleaned
Product-derived is widely used.For example, electric vehicle replaces fuel vehicle.
Existing electric vehicle is although light, but its cruising ability depends on the capacity of the energy-storage units of its carrying, and
The more big then volume and weight of the capacity of energy-storage units is also bigger, light in order to ensure electric vehicle, is mounted on electric vehicle
Energy-storage units can not be made especially big, therefore the cruising ability of electric vehicle differs larger compared with fuel vehicle, need more frequency
It charges numerously.Although however, can be filled by configuring a charge-discharge circuit completion to energy-storage units in existing electric vehicle
Electric discharge, but will do not use electric vehicle in the case where, discharge energy-storage units in electric energy, can only by its energy-storage units into
Row disassembly discharges to energy-storage units using special equipment, which more replicates, improve the dimension of electric vehicle at
This.
Summary of the invention
The embodiment of the invention provides a kind of electric energy bi-directional conversion device electric energy, electric vehicle and electric vehicle power supply system,
Can tell somebody what one's real intentions are the maintenance cost of electric vehicle.
The purpose of the present invention is to provide a kind of electric energy bi-directional conversion devices, are connected between alternating current network and motor,
The electric energy bi-directional conversion device includes:
Energy-storage units, for storing electric energy and exporting direct current；
Control unit, for generating charging signals, with electric signal and inversion feedback signal；
The converting unit being separately connected with the energy-storage units and described control unit, for being flexibly connected the alternating current
Network and the motor, are also used to be converted to according to the alternating current that the charging signals provide the alternating current network
Target direct current carries out being converted to motor, root with electric signal according to described to the direct current that the energy-storage units export
The direct current that the energy-storage units export is carried out being converted to target alternating current according to the inversion feedback signal；Wherein, described
Target direct current is used to charge to the energy-storage units, and the motor for driving the motor to work, hand over by the target
Galvanic electricity is used for the alternating current network feedback electric energy.
Another object of the present invention is to provide a kind of electric vehicle, including motor, the electric vehicle further includes as described above
Electric energy bi-directional conversion device.
A further purpose of the present invention is to providing a kind of electric vehicle power supply system, including for charging for electric vehicle
Alternating current network, the electric vehicle are electric vehicle as described above.
A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system provided by the invention, wherein Yi Zhong electricity
Can bi-directional conversion device, be connected between alternating current network and motor, comprising: energy-storage units, control unit and with the storage
Can the converting unit that is separately connected of unit and described control unit, charging signals are generated by control unit, with electric signal and
Inversion feedback signal, control converting unit be converted to being used for according to charging signals to the alternating current that alternating current network provides
The target direct current to charge to energy-storage units, according to being carried out being converted to use to the direct current for providing energy-storage units with electric signal
In the motor of driving motor work, the direct current that energy-storage units provide is carried out being converted to use according to inversion feedback signal
In to alternating current network feedback electric energy target alternating current, the circuit multiplexer of inversion feedback and charging/discharging function is realized, so that
Electric vehicle when not in use, electric energy in energy-storage units also can as inversion feedback energy source feedback in alternating current network, for it
He uses electric car, without dismantling to energy-storage units, more discharges without using special equipment energy-storage units, reduces
The dimension cost of electric vehicle.
Detailed description of the invention
Technical solution in order to illustrate the embodiments of the present invention more clearly, below will be to needed in embodiment description
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of electric energy bi-directional conversion device provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of electric energy bi-directional conversion device structural schematic diagram；
Fig. 3 be another embodiment of the present invention provides a kind of electric energy bi-directional conversion device concrete structure schematic diagram；
Fig. 4 be another embodiment of the present invention provides a kind of electric energy bi-directional conversion device physical circuit schematic diagram；
Fig. 5 is a kind of structural schematic diagram of electric vehicle provided in an embodiment of the present invention；
Fig. 6 is a kind of electric vehicle power supply system structural schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Figure 1, Fig. 1 is a kind of structural schematic diagram of electric energy bi-directional conversion device provided in an embodiment of the present invention, is
Convenient for explanation, only parts related to embodiments of the present invention are shown.
It should be noted that in the present embodiment, electric energy bi-directional conversion device is applied in electric vehicle, and is connected to exchange
Between electric network 110 and motor 120.
As shown in Figure 1, a kind of electric energy bi-directional conversion device 100, comprising: energy-storage units 10, control unit 20 and conversion
Unit 30.Specifically:
Energy-storage units 10, for storing electric energy and exporting direct current.
Control unit 20, for generating charging signals, with electric signal and inversion feedback signal.
The converting unit 30 being separately connected with energy-storage units 10 and control unit 20, for being flexibly connected alternating current network
110 with motor 120, be also used to be carried out according to the alternating current that charging signals provide alternating current network 110 to be converted to target straight
Galvanic electricity carries out being converted to motor according to the direct current for exporting energy-storage units 10 with electric signal, is believed according to inversion feedback
Number to energy-storage units 10 export direct current carry out being converted to target alternating current；Wherein, target direct current is used for energy storage list
Member 10 charges, and motor works for driving motor 120, and target alternating current is used for 110 feedback electric energy of alternating current network.
In all embodiments of the application, energy-storage units 10 can be battery or storage battery, for storing electric energy simultaneously
Direct current is exported, with the operation of driving motor 120.Alternating current network 110 can be by the charging pile network that charging pile forms, Huo Zhejiao
Galvanic electricity network 110 is connect by charging pile with electric energy bi-directional conversion device 100, and motor 120 can be existing three-phase drive electricity
Machine.
In practical applications, in order to realize the time-sharing multiplex of equipment, pass through control unit 20 under the scene of different demands
Different control signals is exported, and then realizes energy-storage units 10, converting unit 30, alternating current network 110 and driving motor 120
Between a variety of connection types, complete different scenes under electric energy conversion.Specifically, it is needing to charge to energy-storage units 10
When, charging signals are generated by control unit 20, the alternating current that control converting unit 30 provides alternating current network 110 turns
It changes, obtains the target direct current for charging to energy-storage units 10；It is raw by control unit 20 when needing driving motor 120
At with electric signal, the direct current that control converting unit 30 exports energy-storage units 10 is converted to for driving motor 120
The motor of work；When needing the electric energy inversion that will be stored in energy-storage units 10 to be fed back to alternating current network 110, pass through control
Unit 20 processed generates inversion feedback signal, and the direct current that control converting unit 30 exports energy-storage units 10 carries out being converted to use
In the target alternating current to 110 feedback electric energy of alternating current network.
It should be noted that control unit 20 by generating charging signals, with electric signal and inversion feedback signal, in turn
Control the connection relationship between converting unit 30 and alternating current network 110 and motor 120.Specifically, in charging signals and inverse
Under the action of becoming feedback signal again, two kinds of connections between converting unit 30,120 three of alternating current network 110 and motor are realized
Relationship；Under the action of with electric signal, the connection relationship between converting unit 30 and alternating current network 110 is disconnected, is realized simultaneously
Connection relationship between converting unit 30 and motor 120 realizes the multiplexing under different demands to converting unit 30.
A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system provided in this embodiment, wherein a kind of
Electric energy bi-directional conversion device, is connected between alternating current network and motor, comprising: energy-storage units, control unit and with it is described
The converting unit that energy-storage units and described control unit are separately connected, by control unit generate charging signals, with electric signal with
And inversion feedback signal, control converting unit carry out being converted to use according to charging signals to the alternating current that alternating current network provides
In the target direct current to charge to energy-storage units, it is converted to according to electric signal to the direct current that energy-storage units provide
For the motor of driving motor work, it is converted to according to the direct current that inversion feedback signal provides energy-storage units
For realizing the circuit multiplexer of inversion feedback and charging/discharging function to alternating current network feedback electric energy target alternating current, so that
Electric vehicle when not in use, electric energy in energy-storage units also can as inversion feedback energy source feedback in alternating current network, supply
Other electric cars use, and without dismantling to energy-storage units, more discharge without using special equipment energy-storage units, drop
The low dimension cost of electric vehicle.
Referring to fig. 2, Fig. 2 be another embodiment of the present invention provides a kind of electric energy bi-directional conversion device structural schematic diagram,
For ease of description, only parts related to embodiments of the present invention are shown.
As shown in Fig. 2, the difference is that, a kind of electric energy bi-directional conversion device 100 provided in this embodiment is also with upper one
It include: Active Interface unit 40.
Active Interface unit 40 is connected with converting unit 30, for realizing between converting unit 30 and alternating current network 110
Flexible connection.
It should be noted that in practical applications, Active Interface unit 40 can be electric-controlled switch, pass through control unit 20
The control signal of output realizes connection or disconnection between converting unit 30 and alternating current network 110.
Specifically, control unit 20 is used as Active Interface unit by generating charging signals and inversion feedback signal, control
The connection between converting unit 30 and alternating current network 110 is connected in 40 electric-controlled switch.Control unit 20 passes through generation telecommunications
Number, the electric-controlled switch as Active Interface unit 40 is controlled, the connection between converting unit 30 and alternating current network 110 is disconnected.
Further, under the control of charging signals, enable converting unit 30 can be to the exchange of the output of alternating current network 110
Electricity is converted, and the target direct current for charging to energy-storage units 10 is obtained.Under the control of inversion feedback signal, conversion is enabled
The direct current that unit 30 can export energy-storage units 10 be converted to for 110 inversion feedback electric energy of alternating current network
Target alternating current.Under the control with electric signal, converting unit 30 is enabled to disconnect with alternating current network 110, and enables conversion
The direct current that unit 30 exports energy-storage units 10 is converted to the motor to work for driving motor 120.
It is understood that the alternating current that converting unit 30 provides alternating current network 110 in practical applications turns
It changes, specifically progress AC-DC conversion, namely converts alternating current to the target direct current for charging to energy-storage units 10
Electricity；The direct current that energy-storage units 10 export is converted into motor, is specifically converted to direct current suitable for driving motor
Three-phase dc electricity；The direct current that energy-storage units 10 export is converted into target alternating current, particular by promotion energy-storage units
10 voltage, then alternating current is converted to the direct current of the output of energy-storage units 10 and is fed back in alternating current network 110.
In addition, those skilled in the art can also select according to demand different types of electric-controlled switch as Active Interface list
Member 40.For example, relay, timing controller etc. can be selected.
Referring to Fig. 3, Fig. 3 be another embodiment of the present invention provides a kind of electric energy bi-directional conversion device specific structure signal
Figure, as shown in figure 3, converting unit 30 includes the first tap terminals 301, the second tap terminals 302 and third tap terminals 303.
First tap terminals 301, the second tap terminals 302 and third tap terminals 303 are respectively used to the three-phase of connection motor 120
Input terminal.
First tap terminals 301 of converting unit 30 are also used to connect activity with 302 end of the second tap of converting unit 30 and connect
Mouth unit 40, to be flexibly connected alternating current network 110 by Active Interface unit 40；The third tap terminals 303 of converting unit 30
It is also used to be flexibly connected energy-storage units 10.
It should be noted that the first tap terminals 301 of converting unit 30, the second tap terminals 302 and third tap terminals 303
On can by be respectively set switching switch realize and motor 120, Active Interface unit 40 and energy-storage units 10 between cutting
Change connection.
Specifically, when needing to charge to energy-storage units 10, control unit 20 is turned by generating charging signals control
It changes each tap terminals of unit 30 to tell a lie the switching switch of that setting, so that the first tap terminals 301 of converting unit 30 and second are taken out
Head end 302 is connected with Active Interface unit 40, and then connects AC network 110 by Active Interface unit 40, while controlling the
The switching switch being arranged on three tap terminals 303, so that third tap terminals 303 are connected with energy-storage units 10.Needing driving motor
120 when being worked, and control unit 20 is switched by the switching that generation electric signal controls the setting of each tap terminals of converting unit 30,
So that the first tap terminals 301 of converting unit 30, the second tap terminals 302 and third tap terminals 303 are connected with motor 120.
When needing to 110 inversion feedback electric energy of AC network, control unit 20 controls converting unit by generating inversion feedback signal
The switching switch of 30 each tap terminals settings, so that the first tap terminals 301 and the second tap terminals 302 of converting unit 30 connect with activity
Mouth unit 40 is connected, and then connects AC network 110 by Active Interface unit 40, while controlling and setting on third tap terminals 303
The switching switch set, so that third tap terminals 303 are connected with energy-storage units 10.
Refering to Fig. 4, Fig. 4 show another embodiment of the present invention provides a kind of electric energy bi-directional conversion device physical circuit
Schematic diagram.
Converting unit 30 includes the first symmetrical full-bridge circuit 31, the second symmetrical full-bridge circuit 32, the symmetrical full-bridge circuit of third
33, electric capacity of voltage regulation C1, charging capacitor C2 and switch unit SW.
The tap terminals of first symmetrical full-bridge circuit 31 are the first tap terminals 301, the tap terminals of the second symmetrical full-bridge circuit 32
For the second tap terminals 302, the tap terminals of the symmetrical full-bridge circuit 33 of third are third tap terminals 303, the first symmetrical full-bridge circuit 31,
Second symmetrical full-bridge circuit 32 and the symmetrical full-bridge circuit 33 of third are connected with control unit 20, the first symmetrical full-bridge circuit 31
The first connecting pin, the first connecting pin of the second symmetrical full-bridge circuit 32 and the first connecting pin of electric capacity of voltage regulation C1, connect altogether
First connecting pin of three symmetrical full-bridge circuits 33, the second connection end of the first symmetrical full-bridge circuit 31, the second symmetrical full-bridge circuit
32 second connection end and the second connection end of electric capacity of voltage regulation C1, connect the second connection end of the symmetrical full-bridge circuit 33 of third altogether,
The fixing end of switch unit SW is connected with the first end of charging capacitor C2, and the movable end of switch unit SW is for being flexibly connected third
First connecting pin of symmetrical full-bridge circuit 33 and third tap terminals 303, the second connection end of the symmetrical full-bridge circuit 33 of third with fill
The second end of capacitor C2 is connected, and the first end of charging capacitor C2 is connected with 10 first end of energy-storage units, and the of charging capacitor C2
Two ends are connected with 10 second end of energy-storage units.
In the present embodiment, the first connecting pin of electric capacity of voltage regulation C1 is positive terminal, and the second connection end of electric capacity of voltage regulation C1 is
Negative pole end, the first end of charging capacitor C2 are positive terminal, and the second end of charging capacitor C2 is negative pole end.
As shown in figure 4, in all embodiments of the application, the first symmetrical full-bridge circuit 31, the second symmetrical full-bridge circuit 32
And the symmetrical full-bridge circuit 33 of third is the identical full-bridge circuit of structure.
First connecting pin of full-bridge circuit is the first connecting pin of the first symmetrical full-bridge circuit 31, the second symmetrical full-bridge circuit
32 the first connecting pin and the first connecting pin of the symmetrical full-bridge circuit 33 of third, the second connection end of full-bridge circuit are first pair
Claim second connection end, the second connection end of the second symmetrical full-bridge circuit 32 and the symmetrical full-bridge circuit 33 of third of full-bridge circuit 31
Second connection end, the tap group of full-bridge circuit is tap terminals 301, the second symmetrical full-bridge circuit of the first symmetrical full-bridge circuit 31
The tap terminals 303 of the symmetrical full-bridge circuit 33 of 32 tap terminals 302 and third.
As shown in figure 4, full-bridge circuit includes first switch tube Q1, second switch Q2, third switching tube Q3, the 4th switch
Pipe Q4 and winding L.
The controlled end of first switch tube Q1, the controlled end of second switch Q2, the controlled end of third switching tube Q3 and
The controlled end of four switching tube Q4 is connected with control unit 20 respectively, and the hot end of first switch tube Q1 is with second switch Q2's
The first node X1 that hot end is connected to form is the first connecting pin of full-bridge circuit, the cold end of first switch tube Q1 and the
The hot end of three switching tube Q3 connects the first end of winding L altogether, the cold end of second switch Q2 and the 4th switching tube Q4's
Hot end connects the second end of winding L altogether, and the cold end of third switching tube Q3 is connected with the cold end of the 4th switching tube Q4
The second node X2 of formation is the second connection end of full-bridge circuit, and the centre tap of winding L is to the tap group for forming full-bridge circuit.
As a kind of mode in the cards of the present embodiment, first switch tube Q1, second switch Q2, third switching tube Q3
And the 4th switching tube Q4 be IGBT pipe or triode.
Further, first switch tube Q1, second switch Q2, third switching tube Q3 and the 4th switching tube Q4 are IGBT
Guan Shi specifically can be the IGBT pipe with body diode.
Specifically, the grid of the IGBT pipe with body diode is the controlled end of first switch tube Q1, second switch Q2
The controlled end of controlled end, the controlled end of third switching tube Q3 and the 4th switching tube Q4, the current collection of the IGBT pipe with body diode
Extremely the hot end of first switch tube Q1, the hot end of second switch Q2, third switching tube Q3 hot end and
The hot end of 4th switching tube Q4, the transmitting of the IGBT pipe with the body diode extremely cold end of first switch tube Q1, the
Cold end, the cold end of third switching tube Q3 and the cold end of the 4th switching tube Q4 of two switching tube Q2.
The another object of the present embodiment is to provide a kind of electric vehicle, referring particularly to Fig. 5.
Fig. 5 shows a kind of structural schematic diagram of electric vehicle provided in an embodiment of the present invention.
As shown in figure 5, a kind of electric vehicle 200, including motor 120, it further include the electric energy bi-directional conversion dress of above-described embodiment
Set 100.
It is understood that a kind of specific reality related to the present invention of electric vehicle 200 as provided in the present embodiment
It applies mode and working principle has elaborated in the above-described embodiments, therefore, details are not described herein again.
The a further object of the present embodiment is to provide a kind of electric vehicle power supply system, referring particularly to Fig. 6.
Fig. 6 shows a kind of structural schematic diagram of electric vehicle power supply system provided in an embodiment of the present invention.
As shown in fig. 6, a kind of electric vehicle power supply system 300, including the alternating current network for charging for electric vehicle,
Electric vehicle is the electric vehicle 200 of above-described embodiment.
It is understood that a kind of electric vehicle power supply system 300 as provided in the present embodiment is related with the present invention
Specific embodiment and working principle elaborated in the above-described embodiments, therefore, details are not described herein again.
A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system provided by the invention, wherein Yi Zhong electricity
Can bi-directional conversion device, be connected between alternating current network and motor, comprising: energy-storage units, control unit and with the storage
Can the converting unit that is separately connected of unit and described control unit, charging signals are generated by control unit, with electric signal and
Inversion feedback signal, control converting unit be converted to being used for according to charging signals to the alternating current that alternating current network provides
The target direct current to charge to energy-storage units, according to being carried out being converted to use to the direct current for providing energy-storage units with electric signal
In the motor of driving motor work, the direct current that energy-storage units provide is carried out being converted to use according to inversion feedback signal
In to alternating current network feedback electric energy target alternating current, the circuit multiplexer of inversion feedback and charging/discharging function is realized, so that
Electric vehicle when not in use, electric energy in energy-storage units also can as inversion feedback energy source feedback in alternating current network, for it
He uses electric car, without dismantling to energy-storage units, more discharges without using special equipment energy-storage units, reduces
The dimension cost of electric vehicle.
Unit in the terminal of that embodiment of the invention can be combined, divided and deleted according to actual needs.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of electric energy bi-directional conversion device, is connected between alternating current network and motor, which is characterized in that the electric energy is two-way
Conversion equipment includes:
Energy-storage units, for storing electric energy and exporting direct current；
Control unit, for generating charging signals, with electric signal and inversion feedback signal；
The converting unit being separately connected with the energy-storage units and described control unit, for being flexibly connected the alternating current network
With the motor, it is also used to carry out being converted to target according to the alternating current that the charging signals provide the alternating current network
Direct current carries out being converted to motor, according to institute with electric signal according to described to the direct current that the energy-storage units export
It states inversion feedback signal the direct current that the energy-storage units export is carried out being converted to target alternating current；Wherein, the target
Direct current is used to charge to the energy-storage units, and the motor is for driving the motor to work, the target alternating current
For to the alternating current network feedback electric energy.
2. electric energy bi-directional conversion device as described in claim 1, which is characterized in that the electric energy bi-directional conversion device further includes
Active Interface unit；
The Active Interface unit is connected with the converting unit, for realizing the converting unit and the alternating current network it
Between flexible connection.
3. electric energy bi-directional conversion device as claimed in claim 2, which is characterized in that the converting unit includes the first tap
End, the second tap terminals and third tap terminals；
First tap terminals, second tap terminals and the third tap terminals are respectively used to connect the three-phase of the motor
Input terminal.
4. electric energy bi-directional conversion device as claimed in claim 3, which is characterized in that the first tap terminals of the converting unit with
Second tap terminals of the converting unit are also used to connect the Active Interface unit, to pass through the Active Interface unit activity
Connect the alternating current network；The third tap terminals of the converting unit are also used to be flexibly connected the energy-storage units.
5. electric energy bi-directional conversion device as claimed in claim 4, which is characterized in that the converting unit includes first symmetrical complete
Bridge circuit, the second symmetrical full-bridge circuit, the symmetrical full-bridge circuit of third, electric capacity of voltage regulation, charging capacitor and switch unit；
The tap terminals of the first symmetrical full-bridge circuit are first tap terminals, the tap terminals of the second symmetrical full-bridge circuit
For second tap terminals, the tap terminals of the symmetrical full-bridge circuit of third are the third tap terminals, and described first is symmetrical complete
Bridge circuit, the second symmetrical full-bridge circuit and the symmetrical full-bridge circuit of the third are connected with described control unit, described
First connecting pin of the first symmetrical full-bridge circuit, the first connecting pin of the second symmetrical full-bridge circuit and the electric capacity of voltage regulation
The first connecting pin, connect the first connecting pin of the symmetrical full-bridge circuit of the third altogether, the second of the first symmetrical full-bridge circuit
The second connection end of connecting pin, the second connection end of the second symmetrical full-bridge circuit and the electric capacity of voltage regulation connects described altogether
The second connection end of the symmetrical full-bridge circuit of third, the fixing end of the switch unit are connected with the first end of the charging capacitor,
The movable end of the switch unit is used to be flexibly connected the first connecting pin of the symmetrical full-bridge circuit of the third and the third is taken out
The second connection end of head end, the symmetrical full-bridge circuit of third is connected with the second end of the charging capacitor, the charging capacitor
First end be connected with the energy-storage units first end, the second end of the charging capacitor and the energy-storage units second end phase
Even.
6. electric energy bi-directional conversion device as claimed in claim 5, which is characterized in that the first symmetrical full-bridge circuit, described
Second symmetrical full-bridge circuit and the symmetrical full-bridge circuit of the third are the identical full-bridge circuit of structure；
First connecting pin of the full-bridge circuit is the first connecting pin of the described first symmetrical full-bridge circuit, described second symmetrical complete
First connecting pin of bridge circuit and the first connecting pin of the symmetrical full-bridge circuit of the third, the second connection of the full-bridge circuit
End is the second connection end of the described first symmetrical full-bridge circuit, the second connection end of the second symmetrical full-bridge circuit and described
The second connection end of the symmetrical full-bridge circuit of third, the tap group of the full-bridge circuit are the tap of the described first symmetrical full-bridge circuit
The tap terminals at end, the tap terminals of the second symmetrical full-bridge circuit and the symmetrical full-bridge circuit of the third.
7. electric energy bi-directional conversion device as claimed in claim 6, which is characterized in that the full-bridge circuit includes first switch
Pipe, second switch, third switching tube, the 4th switching tube and winding；
The controlled end of the first switch tube, the controlled end of the second switch, the third switching tube controlled end and
The controlled end of 4th switching tube is connected with described control unit respectively, the hot end of the first switch tube and described the
The first node that the hot end of two switching tubes is connected to form is the first connecting pin of the full-bridge circuit, the first switch tube
Cold end and the hot end of the third switching tube connect the first end of the winding, the low electricity of the second switch altogether
The hot end of position end and the 4th switching tube connects the second end of the winding altogether, the cold end of the third switching tube with
The second node that the cold end of 4th switching tube is connected to form is the second connection end of the full-bridge circuit, the winding
Centre tap to the tap group for forming the full-bridge circuit.
8. electric energy bi-directional conversion device as claimed in claim 7, which is characterized in that the first switch tube, described second open
Guan Guan, the third switching tube and the 4th switching tube are IGBT pipe or triode.
9. a kind of electric vehicle, including motor, which is characterized in that the electric vehicle further includes that claim 1 to 8 is described in any item
Electric energy bi-directional conversion device.
10. a kind of electric vehicle power supply system, including the alternating current network for charging for electric vehicle, which is characterized in that institute
Stating electric vehicle is electric vehicle as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910492008.7A CN110341517A (en) | 2019-06-06 | 2019-06-06 | A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system |
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| CN201910492008.7A CN110341517A (en) | 2019-06-06 | 2019-06-06 | A kind of electric energy bi-directional conversion device, electric vehicle and electric vehicle power supply system |
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