CN207374154U - A kind of energy storage device that DC charging is carried out for electric vehicle - Google Patents
A kind of energy storage device that DC charging is carried out for electric vehicle Download PDFInfo
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- CN207374154U CN207374154U CN201721387569.3U CN201721387569U CN207374154U CN 207374154 U CN207374154 U CN 207374154U CN 201721387569 U CN201721387569 U CN 201721387569U CN 207374154 U CN207374154 U CN 207374154U
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- battery
- energy storage
- storage device
- control system
- power conversion
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- 238000004146 energy storage Methods 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 230000005611 electricity Effects 0.000 claims abstract description 15
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 208000032953 Device battery issue Diseases 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of energy storage devices that DC charging is carried out for electric vehicle, including battery system, battery system connects battery management system, battery control system and power conversion system, power conversion system is equipped with AC/DC conversion modules and is connected with AC network, it is charged by AC network for battery system energy storage, battery system for multiple series-parallel lithium battery groups into lithium battery group, battery control system output high power DC electricity, including series-parallel control system and discharge control system, battery management system is monitored battery system, safety management is carried out to battery system energy storage charge and discharge process, it is alarmed the failure that battery system is likely to occur and emergency protection handles and optimizes control to the operation of battery system, and ensure battery system safety, reliably, stable operation.This energy storage device can effectively solve the problem that the problem of existing charging time is grown and is costly when direct-current charging post is charged for electric vehicle.
Description
Technical field
The utility model is related to a kind of energy storage devices, and in particular to it is a kind of by DC charging mode to the straight of equipment charge
Current charge energy storage device.
Background technology
At present, it is the new-energy automobile of representative due to its environmental protection characteristic, energy conservation characteristic and light characteristic using electric car, it is more next
More become the development trend of future automobile.European Countries were just formulated all kinds of ambitious electronic since 2010 or so
Vehicle development plan, in 2016, German Government even had begun to discuss the bill that all fuel vehicles were eliminated before the year two thousand thirty.China
Issue《Automobile industry Long-and Medium-term Development is planned》According to notice, the advanced skill of automobile will be greatly developed in new energy major fields
Art forms new-energy automobile, intelligent network connection automobile and the rational industrial pattern of advanced energy-saving automobile echelon and perfect industry
Matching system leads automobile industry transition and upgrade.Target is to the year two thousand twenty, and the production and marketing of new-energy automobile year reaches 2,000,000, arrives
2025, new-energy automobile accounted for automobile production and marketing more than 20%.
One problem of puzzlement Development of Electric Vehicles maximum is the charging problems of electric vehicle, and electric vehicle is main at present
Charging modes be by charging pile be electric vehicle charge.But user majority of the new-energy automobile in big city is not gathered around
There is the Reserved Parking of oneself, private special charging stake can not be also installed, it is necessary to charge in public charging pile.Direct current quick charge stake
It is directly connected to power grid, electricity is taken to power grid, and exported high power DC electricity and charge for electric vehicle.Existing for this charging modes
Problem is：
One, charges, and the required time is too long, and common alternating-current charging pile needs 6-8 small full of the once required time
When, full of when once the required time also wants 1-2 small, user's use is very inconvenient for common direct current quick charge stake；
Two, are because the common alternating current of power grid is converted to high-voltage large current by direct current quick charge stake needs in real time
Direct current charges for electric vehicle, so charging pile cost is very high, user is caused to still suffer from the charging service expense of great number.
For three, due to being charged on public charging pile, the charging time is typically all in peak times of power consumption, peak of power consumption
The peak electricity tariff of phase so that therefore expense that electric vehicle generates is not any compared to fuel vehicle along with prolonged parking fee
Advantage is even more taller than the expense of fuel vehicle.
The charging problems of 3 electric cars present on greatly reduce purchase intention of the user to electric vehicle, therefore
Limit the development speed of electric vehicle.
Utility model content
The purpose of this utility model is to provide a kind of DC charging energy storage device, can effectively solve the problem that direct-current charging post exists
Charging time length and it is costly the problem of.
One embodiment of the utility model provides a kind of energy storage device that DC charging is carried out for electric vehicle, including
Battery system, battery system connection battery management system, battery control system and power conversion system, power conversion system are equipped with
AC/DC conversion modules are simultaneously connected with AC network, are charged by AC network for battery system, battery system is multiple connection in series-parallel
Lithium battery group into lithium battery group, battery control system output high power DC electricity, battery control system include connection in series-parallel control
System processed and battery discharge control system, battery management system are monitored battery system, to battery system charge and discharge
Process carry out safety management, alarmed the failure that battery system is likely to occur and emergency protection processing and to battery system
Operation optimize control, and ensure battery system it is safe and reliable, stablize operation.The core of innovation of the utility model it
One is, the electric energy stored by battery system inversion need not be returned galvanic electricity again, but directly by battery control system with Gao Gong
The form output of rate direct current, and the method for generating high power direct current output is that connection in series-parallel control is carried out to battery pack, Ke Yifang
Just and low cost obtains the direct current output of higher power, then improves to the charging rate of electric vehicle and at the same time reducing
Expense.
Further, battery discharge control system is equipped with communication control system, which is used to fill with vehicle-mounted
Electric system is communicated.
Further, battery management system includes battery detection module, and monitoring modular detects the internal resistance of cell using alternating current method,
The low-frequency ac electric current signal of an amplitude stability is injected to battery, measurement battery low-frequency voltage, low-frequency current are calculated in battery
Resistance provides accurate data for battery charge state estimation and cell health state monitoring, provides decision-making foundation for early warning, realize electricity
Pond early warning failure is reminded.
Further, battery management system and power conversion system are all connected with monitoring system, battery management system and power
Converting system sends status information to monitoring system, and monitoring system sends control letter to battery management system and power conversion system
Breath.
Further, battery management system and power conversion system are directly connected to, battery management system and power conversion system
System sends mutually status information.
Further, battery management system is equipped with charge-discharge control system, can realize in non-electrical peak period to be device
Store electric energy.
Further, battery management system monitors the temperature of each battery in real time, and the operation conditions and heat dissipation to battery are imitated
Fruit judges and analyzes, and is replaced in time when particular battery breaks down.
Further, tank discharge control system include discharge electricity amount statistical module, facilitate energy storage device electric discharge management and
Expense counts.
Further, monitoring system output is WEB forms, realizes user's remote access.
Further, power conversion system includes voltage converter, and voltage converter and AC network connect
Transformer is equipped between access point.
DC charging energy storage device provided by the utility model, has the following advantages that：
1. once AC/DC transfer processes reduce the energy loss that multiple AC/DC transfer zones come.
2. can effectively realize that night energy storage is charged daytime, mitigate power grid burden, peak load shifting balances network load big
It is helpful.
3. offer bigger charge power that can be simple and inexpensive, while charging rate is significantly improved, due to
It is to use paddy period electricity price, while charging service expense is greatly reduced, it is real tangible to be brought for new energy pure electric automobile user
Convenience and material benefit.
Description of the drawings
Fig. 1 show showing for one embodiment that the utility model is the energy storage device that electric vehicle carries out DC charging
It is intended to.
Specific embodiment
It is specific below in conjunction with the utility model to make the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.
With reference to figure 1, in one embodiment of the utility model, the energy storage device bag of DC charging is carried out for electric vehicle
Battery system is included, battery system connection battery management system, battery control system and power conversion system, power conversion system are set
There are AC/DC conversion modules and be connected with AC network, charged by AC network for battery system, battery system is gone here and there simultaneously to be multiple
The lithium battery group of connection into lithium battery group, battery control system output high power DC electricity, battery control system be connection in series-parallel control
System processed, battery management system are monitored battery system, safety management are carried out to battery system charge and discharge process, is right
The failure that battery system is likely to occur carries out alarm and emergency protection processing and optimizes control to the operation of battery system,
And ensure the operation that battery system is safe and reliable, stablizes.
In one embodiment of the utility model, battery discharge control system is equipped with communication control system, the communication control
System processed is used for and on-board charging system is communicated.By the communication of both sides, the charging rate of electric vehicle is adjusted.
In one embodiment of the utility model, battery management system includes battery detection module, and monitoring modular uses
Alternating current method detects the internal resistance of cell, injects the low-frequency ac electric current signal of an amplitude stability to battery, measurement battery low-frequency voltage,
Low-frequency current calculates the internal resistance of cell, provides accurate data for battery charge state estimation and cell health state monitoring, is early warning
Decision-making foundation is provided, realizes that battery failure early warning is reminded.
In one embodiment of the utility model, battery management system and power conversion system are all connected with monitoring system,
Battery management system and power conversion system send status information to monitoring system, and monitoring system is to battery management system and power
Converting system sends control information.
In one embodiment of the utility model, battery management system and power conversion system are directly connected to, cell tube
Reason system and power conversion system send mutually status information, and realization is more accurately controlled.
In one embodiment of the utility model, battery management system is equipped with charge-discharge control system, can realize
Non-electrical peak period stores electric energy for device, charges for electric vehicle daytime, mitigates power grid burden, peak load shifting bears power grid
Balance is carried to be very beneficial.
In one embodiment of the utility model, in system operation, battery management system real time monitoring is each
The temperature of battery is judged and analyzed to the operation conditions and heat dissipation effect of battery exactly, is broken down in particular battery
When replace in time.
In one embodiment of the utility model, lithium battery can be ferric phosphate lithium cell.
In one embodiment of the utility model, tank discharge control system includes discharge electricity amount statistical module, facilitates storage
It can the electric discharge management of device and expense statistics.
In one embodiment of the utility model, monitoring system output is WEB forms, realizes user's remote access.
In one embodiment of the utility model, power conversion system includes voltage converter, and voltage-source type becomes
It flows and transformer is equipped between device and the access point of AC network.
Although being made that detailed description to the utility model with above-mentioned preferred embodiment, not above-described embodiment is used
Limit the utility model.Those skilled in the art is not it should be recognized that departing from the skill given by technical solutions of the utility model
In the case of art feature and scope, the increase made to technical characteristic, with this field some similary contents replacement, this should all be belonged to
The protection domain of utility model.
Claims (10)
1. a kind of energy storage device that DC charging is carried out for electric vehicle, it is characterized in that, including battery system, the battery system
Connect battery management system, battery control system and power conversion system, power conversion system be equipped with AC/DC conversion modules and with
AC network connects, and is charged by AC network for battery system energy storage, the battery system is multiple series-parallel lithium batteries
The lithium battery group of composition, the battery control system output high power DC electricity, the battery control system include connection in series-parallel control
System processed and battery discharge control system, the battery management system are monitored battery system, battery system energy storage are filled
Electricity with discharge process carry out safety management, alarmed the failure that battery system is likely to occur and emergency protection handle and it is right
The operation of battery system optimizes control, and ensures the operation that battery system is safe and reliable, stablizes.
2. energy storage device according to claim 1, it is characterized in that, the battery discharge control system is equipped with Communication Control system
System, the communication control system is used for and on-board charging system is communicated.
3. energy storage device according to claim 1 or 2, it is characterized in that, the battery management system includes battery detection mould
Block, the monitoring modular detect the internal resistance of cell using alternating current method, and the low-frequency ac electric current that an amplitude stability is injected to battery is believed
Number, measurement battery low-frequency voltage, low-frequency current calculate the internal resistance of cell, for battery charge state estimation and cell health state monitoring
Accurate data is provided, decision-making foundation is provided for early warning, realizes that battery failure early warning is reminded.
4. energy storage device according to claim 1 or 2, it is characterized in that, the battery management system and power conversion system
It is all connected with monitoring system, the battery management system and power conversion system and sends status information, the monitoring to monitoring system
System sends control information to the battery management system and power conversion system.
5. energy storage device according to claim 4, it is characterized in that, the battery management system and power conversion system are direct
Connection, the battery management system and power conversion system send mutually status information.
6. energy storage device according to claim 1 or 2, it is characterized in that, the battery management system is equipped with charge and discharge control
System can be realized and store electric energy in non-electrical peak period for device.
7. energy storage device according to claim 1 or 2, it is characterized in that, each electricity of battery management system real time monitoring
The temperature in pond is judged and analyzed to the operation conditions and heat dissipation effect of battery, when particular battery breaks down in time more
It changes.
8. energy storage device according to claim 1 or 2, it is characterized in that, the battery discharge control system includes electric discharge electricity
Measure statistical module.
9. energy storage device according to claim 4, it is characterized in that, the monitoring system output is WEB forms, realizes user
Remote access.
10. energy storage device according to claim 1 or 2, it is characterized in that, the power conversion system becomes including voltage-source type
Device is flowed, transformer is equipped between the voltage converter and the access point of AC network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387569.3U CN207374154U (en) | 2017-10-24 | 2017-10-24 | A kind of energy storage device that DC charging is carried out for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721387569.3U CN207374154U (en) | 2017-10-24 | 2017-10-24 | A kind of energy storage device that DC charging is carried out for electric vehicle |
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| Publication Number | Publication Date |
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| CN207374154U true CN207374154U (en) | 2018-05-18 |
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| CN201721387569.3U Active CN207374154U (en) | 2017-10-24 | 2017-10-24 | A kind of energy storage device that DC charging is carried out for electric vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960481A (en) * | 2021-09-17 | 2022-01-21 | 珠海吉瓦科技有限公司 | Energy storage operation detection device, system, method and storage medium |
-
2017
- 2017-10-24 CN CN201721387569.3U patent/CN207374154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960481A (en) * | 2021-09-17 | 2022-01-21 | 珠海吉瓦科技有限公司 | Energy storage operation detection device, system, method and storage medium |
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