CN208094204U - A kind of electric vehicle and power grid energy two-way exchange system - Google Patents
A kind of electric vehicle and power grid energy two-way exchange system Download PDFInfo
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- CN208094204U CN208094204U CN201820632112.2U CN201820632112U CN208094204U CN 208094204 U CN208094204 U CN 208094204U CN 201820632112 U CN201820632112 U CN 201820632112U CN 208094204 U CN208094204 U CN 208094204U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000001012 protector Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000004146 energy storage Methods 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model is related to the technical fields that power grid energy exchanges, more specifically, it is related to a kind of electric vehicle and power grid energy two-way exchange system, Alternating Current Unit, bi-directional power conversion unit, Direct Current Distribution Unit and the charging interface being connect including intelligent control unit and with intelligent control unit, Alternating Current Unit, bi-directional power conversion unit, Direct Current Distribution Unit, charging interface are sequentially electrically connected；Intelligent control unit both-way communication is connected with user terminal, and user terminal is connect with background network.The utility model is transformed based on existing charging pile system, changes energy unidirectional transmission structures, realizes the two-way exchange of electric vehicle and power grid energy：During network load paddy section, electricity price is relatively low, and power grid energy is stored in automobile batteries；During network load crest segment, the load of power grid will be buffered in the energy back to power grid of automobile batteries storage；In grid power blackout, using the electric discharge of electric vehicle energy storage, emergency power supply is provided for power grid important load.
Description
Technical field
The utility model is related to the technical fields that power grid energy exchanges, more particularly, to a kind of electric vehicle and power grid
Energy two-way exchange system.
Background technology
Due to the uncertainty of workload demand, the voltage and frequencies that carried out to power grid are adjusted largely network voltage
Increase the operation cost of power grid.Along with renewable energy system is just largely accessed in electric system, naturally due to it
Discontinuity can also cause the fluctuation of power generation, and there is an urgent need to battery energy storage system etc., other energy mend network load
It repays, with the natural changeability of smooth regenerative resource, ensures the stabilization of mains frequency and inhibit electric caused by backward power stream
Pressure rises.Meanwhile as a large amount of new energy electric motor vehicle promotes and applies, there is big portion within one day time within one day time
The electric vehicle divided has the halted state of nearly a few hours, battery to belong to halted state, and the battery capacity of electric vehicle is larger,
It is preferable energy-storage system equipped with high performance BMS systems.
The energy exchange system of traditional electric vehicle and power grid is one-way transmission, has no idea to utilize batteries of electric automobile
Energy storage attribute realize network voltage, frequency adjusting.Currently, electric vehicle, which exchanges main use with the energy of power grid, changes electric skill
Art energy exchanging system, and this energy exchanging system is difficult to utilization and extention due to changing a technology at present, does not have application conditions.
In addition, existing electric vehicle does not efficiently use existing charging pile system with power grid interactive system in the market, terminate structure
Complexity, cost is higher, and efficiency is also slow.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, a kind of electric vehicle is provided and power grid energy is two-way
Exchange system, change energy unidirectional transmission structures, realize electric vehicle and power grid energy two-way exchange, systems exchange efficiency compared with
Height, cost of implementation are relatively low.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of electric vehicle and power grid energy two-way exchange system are provided, are connected between electric vehicle and charging pile；Institute
It includes that intelligent control unit and the Alternating Current Unit being connect with intelligent control unit, bidirectional power become to state two-way exchange system
Change unit, Direct Current Distribution Unit and charging interface, the Alternating Current Unit, bi-directional power conversion unit, DC distribution list
Member, charging interface are sequentially electrically connected；The intelligent control unit both-way communication is connected with the user for realizing electric vehicle charge and discharge
Terminal, the user terminal are wirelessly connected with background network.
The electric vehicle of the utility model and power grid energy two-way exchange system, background network or user terminal can pass through
Intelligent control unit controls the charge and discharge of electric vehicle.During network load paddy section, electricity price is relatively low, can store power grid energy
In automobile batteries；During network load crest segment, in the energy back to power grid that automobile batteries is stored, to buffer power grid
Load；In grid power blackout, using the electric discharge of electric vehicle energy storage, emergency power supply is provided for power grid important load.This practicality is new
Type is transformed based on existing charging pile, and system structure is simple, realizes the plug and play of electric vehicle, and system effectiveness is higher,
Cost of implementation is relatively low.
Further, the Alternating Current Unit includes alternating-current meter and isolating transformer, and the alternating-current meter is set to exchange
Between input terminal and isolating transformer, first connect with intelligent control unit is equipped between the alternating-current meter and isolating transformer
Contactor.When electric quantity of batteries of electric vehicle deficiency, Alternating Current Unit introduces 380V alternating currents, and is sent by isolating transformer
Enter bidirectional power change unit, realizes the isolation of the power qualities such as harmonic wave.
Further, the bi-directional power conversion unit includes the AC modules being connected in series with and DC modules, the AC modules,
DC modules are connect by the first communication board, the second communication board with intelligent control unit respectively.It is whole in bi-directional power conversion unit
AC rectification is low-voltage DC by stream part, realizes the transformation of AC/DC, and the direct current after over commutation is straight by DC/DC
Stream power distribution unit boosts to the high-voltage charging voltage needed for system, and electric vehicle charging is realized finally by charging interface.
Further, the Direct Current Distribution Unit includes the direct current table and fuse of electrical connection, the fuse connection
It is equipped between direct current table and charging interface, between the DC modules and direct current table and intelligent control unit connects second contacts
Device.When batteries of electric automobile is sufficient and need to be to grid side feedback electric energy when, charging interface is introduced into the direct current in batteries of electric automobile
Electricity, and realize DC/DC DC decompressions by Direct Current Distribution Unit, low-voltage direct is formed, low-voltage direct changes by bidirectional power
The Converting Unit of unit realizes DC/AC transformation, forms 380V alternating currents, and alternating current passes through AC distribution after isolating transformer
Unit feed-in power grid, the load of power supply network enterprise use.
Further, the intelligent control unit includes control panel and collection plate, and the collection plate is connected to control panel
Input terminal；The first contactor, second contactor and fuse are connect with control panel, and the direct current table connects with collection plate
It connects, the alternating-current meter is connect with control panel.Direct current table acquires DC voltage, alternating-current meter in circuit and acquires in charge and discharge process
Simultaneously for real-time Transmission to collection plate and control panel, control panel, which can pass through, controls first contactor, second contactor for the magnitude of current, voltage
The break-make of control circuit realizes the intelligent control to energy two-way exchange；Fuse disconnects automatically in line load.
Further, the input terminal of the collection plate is also associated with Surge Protector.Surge Protector acquires lightning protection state
Signal and real-time Transmission are to control panel.
Further, the collection plate is connected with for heat extraction cooling fan, and the output end of the collection plate is connected with
Power supply indicator, normal indicator light and malfunction indicator lamp；Grasp the operation shape of two-way exchange system in real time convenient for staff
State.
Further, the collection plate is connected with monitor board, and the monitor board is connected with for the aobvious of display monitoring data
Display screen curtain.Collection plate acquisition electric current, voltage signal, first contactor, second contactor, Surge Protector, fuse shape
State real-time display on the display screen, intuitive display.
Compared with prior art, the utility model has the beneficial effects that：
The utility model is transformed based on existing charging pile system, changes energy unidirectional transmission structures, realizes electric vehicle
With the two-way exchange of power grid energy：During network load paddy section, electricity price is relatively low, can power grid energy be stored in automobile batteries
In；During network load crest segment, in the energy back to power grid that automobile batteries is stored, to buffer the load of power grid；In electricity
When net has a power failure, using the electric discharge of electric vehicle energy storage, emergency power supply is provided for power grid important load.The utility model is based on existing
Charging pile be transformed, system structure is simple, realizes the plug and play of electric vehicle, and system effectiveness is higher, cost of implementation compared with
It is low.
Description of the drawings
Fig. 1 is the structural schematic diagram of the electric vehicle and power grid energy two-way exchange system of the utility model.
Fig. 2 is the circuit diagram of electric vehicle and power grid energy two-way exchange system.
Specific implementation mode
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；In this practicality
In novel description, it is to be understood that if there is the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right" to be
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore retouched in attached drawing
The term for stating position relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment 1
Implement as shown in Figure 1 to Figure 2 for the electric vehicle of the utility model and the first of power grid energy two-way exchange system
Example, two-way exchange system is connected between electric vehicle and charging pile, including intelligent control unit 1 and and intelligent control unit
1 Alternating Current Unit 2, bi-directional power conversion unit 3, Direct Current Distribution Unit 4 and the charging interface 5 being bi-directionally connected, exchange is matched
Electric unit 2, bi-directional power conversion unit 3, Direct Current Distribution Unit 4, charging interface 5 are sequentially electrically connected, and charging interface 5 is set to charging
In stake, Alternating Current Unit 2 is connected to the ac input end of distribution；Intelligent control unit 1 is connected with for controlling electric vehicle
The user terminal 6 of charge and discharge, user terminal 6 are wirelessly connected with background network.
For the present embodiment during network load paddy section, electricity price is relatively low, and power grid energy can be stored in automobile batteries；In electricity
During net load crest segment, in the energy back to power grid that automobile batteries is stored, to buffer the load of power grid；In grid power blackout
When, using the electric discharge of electric vehicle energy storage, emergency power supply is provided for power grid important load.
As shown in Fig. 2, Alternating Current Unit 2 includes alternating-current meter 21 and isolating transformer 22, alternating-current meter 21 is set to exchange
It is equipped between input terminal and isolating transformer 22, between alternating-current meter 21 and isolating transformer 22 and connect with intelligent control unit 1
First contactor 23；Bi-directional power conversion unit 3 includes the AC modules 31 being connected in series with and DC modules 32, AC modules 31, DC moulds
Block 32 is connect by the first communication board 33, the second communication board 34 with intelligent control unit 1 respectively；Direct Current Distribution Unit 4 includes electricity
The direct current table 41 and fuse 42 of connection, fuse 42 are connected between direct current table 41 and charging interface 5, DC modules 32 and straight
The second contactor 43 being connect with intelligent control unit 1 is equipped between flow table 41.
The present embodiment in electric quantity of batteries of electric vehicle deficiency, Alternating Current Unit 2 introduce 380V alternating currents, and by every
It is sent into bidirectional power change unit from transformer 22, realizes the isolation of the power qualities such as harmonic wave；It is whole in bi-directional power conversion unit 3
AC rectification is low-voltage DC by stream part, realizes the transformation of AC/DC, and the direct current after over commutation is straight by DC/DC
Stream power distribution unit 4 boosts to the high-voltage charging voltage needed for system, and electric vehicle charging is realized finally by charging interface 5.When
Batteries of electric automobile is sufficient and need to be to grid side feedback electric energy when, charging interface 5 is introduced into the direct current in batteries of electric automobile, and
DC/DC DC decompressions are realized by Direct Current Distribution Unit 4, form low-voltage direct, and low-voltage direct passes through bidirectional power change unit
Converting Unit realize DC/AC transformation, form 380V alternating currents, alternating current passes through AC distribution list after isolating transformer 22
First 2 feed-in power grids, the load of power supply network enterprise use.
In addition, as shown in Fig. 2, intelligent control unit 1 includes control panel 11 and collection plate 12, collection plate 12 is connected to control
The input terminal of plate 11；First contactor 23, second contactor 43 and fuse 42 are connect with control panel 11, direct current table 41 with
Collection plate 12 connects, and alternating-current meter 21 is connect with control panel 11；Direct current table 41 acquires DC voltage, alternating-current meter 21 in circuit and acquires
For the magnitude of current, voltage and real-time Transmission in charge and discharge process to collection plate 12 and control panel 11, control panel 11 can pass through control
The break-make of first contactor 23,43 control circuit of second contactor realizes the intelligent control to energy two-way exchange；Fuse 42
It is disconnected automatically in line load.
The input terminal of collection plate 12 is also associated with Surge Protector 13, acquisition lightning protection state signal and real-time Transmission to control
Plate 11；Collection plate 12 is connected with for heat extraction cooling fan 14, and the output end of collection plate 12 is connected with power supply indicator 15, just
Normal indicator light 16 and malfunction indicator lamp 17, and collection plate 12 is connected with monitor board 18, monitor board 18 is connected with for showing prison
Control the display screen 19 of data, electric current, the voltage signal of the acquisition of collection plate 12, first contactor 23, second contactor 43, surge
Protector 13, fuse 42 state real-time display display screen 19 on.
The model Wh1-DTZ719 of alternating-current meter in the present embodiment, the model KM3 JCQ200EDA of first contactor,
The model YL SBF-50/0.4L of isolating transformer, model KM1 ~ 2JCQ200EDA of second contactor, the type of direct current table
Number be Wh2 DJSF719, the RT16-00 of model FU1 ~ 2 G160A of fuse.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (8)
1. a kind of electric vehicle and power grid energy two-way exchange system, are connected between electric vehicle and charging pile；Its feature exists
In the two-way exchange system includes intelligent control unit（1）And the AC distribution list being bi-directionally connected with intelligent control unit
Member（2）, bi-directional power conversion unit（3）, Direct Current Distribution Unit（4）And charging interface（5）, the Alternating Current Unit（2）,
Bi-directional power conversion unit（3）, Direct Current Distribution Unit（4）, charging interface（5）It is sequentially electrically connected, the charging interface（5）It is set to
On charging pile, the Alternating Current Unit（2）It is connected to the ac input end of distribution；The intelligent control unit（1）It is connected with
User terminal for controlling electric vehicle charge and discharge（6）, the user terminal（6）It is wirelessly connected with background network（7）.
2. electric vehicle according to claim 1 and power grid energy two-way exchange system, which is characterized in that the exchange is matched
Electric unit（2）Including alternating-current meter（21）And isolating transformer（22）, the alternating-current meter（21）Set on ac input end and isolation
Transformer（22）Between, the alternating-current meter（21）With isolating transformer（22）Between be equipped with and intelligent control unit（1）Connection
First contactor（23）.
3. electric vehicle according to claim 2 and power grid energy two-way exchange system, which is characterized in that the two-way work(
Rate converter unit（3）Including the AC modules being connected in series with（31）With DC modules（32）, the AC modules（31）, DC modules（32）Point
Do not pass through the first communication board（33）, the second communication board（34）With intelligent control unit（1）Connection.
4. electric vehicle according to claim 3 and power grid energy two-way exchange system, which is characterized in that the direct current
Power distribution unit（4）Direct current table including electrical connection（41）And fuse（42）, the fuse（42）It is connected to direct current table
（41）Between charging interface, the DC modules（32）With direct current table（41）Between be equipped with and intelligent control unit（1）Connection
Second contactor（43）.
5. electric vehicle according to claim 4 and power grid energy two-way exchange system, which is characterized in that the intelligence control
Unit processed（1）Including control panel（11）And collection plate（12）, the collection plate（12）It is connected to control panel（11）Input terminal；Institute
State first contactor（23）, second contactor（43）And fuse（42）And control panel（11）Connection, the direct current table
（41）With collection plate（12）Connection, the alternating-current meter（21）With control panel（11）Connection.
6. electric vehicle according to claim 5 and power grid energy two-way exchange system, which is characterized in that the collection plate
（12）Input terminal be also associated with Surge Protector（13）.
7. electric vehicle according to claim 5 and power grid energy two-way exchange system, which is characterized in that the collection plate
（12）It is connected with and is used for heat extraction cooling fan（14）, the collection plate（12）Output end be connected with power supply indicator（15）,
Normal indicator light（16）And malfunction indicator lamp（17）.
8. according to claim 5 to 7 any one of them electric vehicle and power grid energy two-way exchange system, which is characterized in that
The collection plate（12）It is connected with monitor board（18）, the monitor board（18）It is connected with the display screen for display monitoring data
（19）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820632112.2U CN208094204U (en) | 2018-04-28 | 2018-04-28 | A kind of electric vehicle and power grid energy two-way exchange system |
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| CN201820632112.2U CN208094204U (en) | 2018-04-28 | 2018-04-28 | A kind of electric vehicle and power grid energy two-way exchange system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110752612A (en) * | 2019-10-25 | 2020-02-04 | 深圳市永联科技股份有限公司 | Movable fills integrative device that stores up |
| CN111478351A (en) * | 2020-05-21 | 2020-07-31 | 浙江智充电力科技有限公司 | Energy storage and charging integrated system |
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| CN112332508A (en) * | 2020-10-19 | 2021-02-05 | 许继电源有限公司 | A power frequency isolation high power charging and discharging system |
| CN112590601A (en) * | 2020-12-24 | 2021-04-02 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Novel V2G charging station system based on edge computing platform and charging method thereof |
| CN114172242A (en) * | 2021-12-13 | 2022-03-11 | 国网电动汽车服务有限公司 | Bidirectional charging and discharging system and control method thereof |
| CN114726035A (en) * | 2022-03-31 | 2022-07-08 | 岚图汽车科技有限公司 | Charging and discharging system, interface and equipment |
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- 2018-04-28 CN CN201820632112.2U patent/CN208094204U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752612A (en) * | 2019-10-25 | 2020-02-04 | 深圳市永联科技股份有限公司 | Movable fills integrative device that stores up |
| CN110752612B (en) * | 2019-10-25 | 2024-03-22 | 深圳市永联科技股份有限公司 | Movable fills integrative device of storage |
| CN111478351A (en) * | 2020-05-21 | 2020-07-31 | 浙江智充电力科技有限公司 | Energy storage and charging integrated system |
| CN111756068A (en) * | 2020-07-07 | 2020-10-09 | 扬州大学 | A Four-Port Electric Vehicle Transducer Circuit Based on Bridge Buck-Boost |
| CN111756068B (en) * | 2020-07-07 | 2024-02-06 | 扬州大学 | Four-port electric automobile transduction circuit based on bridge Buck-Boost |
| CN112332508A (en) * | 2020-10-19 | 2021-02-05 | 许继电源有限公司 | A power frequency isolation high power charging and discharging system |
| CN112590601A (en) * | 2020-12-24 | 2021-04-02 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Novel V2G charging station system based on edge computing platform and charging method thereof |
| CN112590601B (en) * | 2020-12-24 | 2022-07-05 | 国网智慧能源交通技术创新中心(苏州)有限公司 | V2G charging station system based on edge computing platform |
| CN114172242A (en) * | 2021-12-13 | 2022-03-11 | 国网电动汽车服务有限公司 | Bidirectional charging and discharging system and control method thereof |
| CN114726035A (en) * | 2022-03-31 | 2022-07-08 | 岚图汽车科技有限公司 | Charging and discharging system, interface and equipment |
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