CN207116584U - A kind of all-vanadium flow battery energy-storage module device - Google Patents
A kind of all-vanadium flow battery energy-storage module device Download PDFInfo
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- CN207116584U CN207116584U CN201721000655.4U CN201721000655U CN207116584U CN 207116584 U CN207116584 U CN 207116584U CN 201721000655 U CN201721000655 U CN 201721000655U CN 207116584 U CN207116584 U CN 207116584U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
All-vanadium flow battery technical field of energy storage is the utility model is related to, refers specifically to a kind of all-vanadium flow battery energy-storage module device, also discloses a kind of voltage balance control method of all-vanadium flow battery energy-storage module device；Including the power supply/load for forming loop and full vanadium liquid energy-storage module, control loop, the full vanadium liquid energy-storage module includes N number of full vanadium liquid energy-storage pile being sequentially connected in series, and corresponding bridging branch road is equipped between the two poles of the earth of any full vanadium liquid energy-storage pile；The control loop is provided with controller, the voltage check device and short switch of N groups, and every group of voltage check device and short switch are connected in parallel on corresponding bridging branch road, and the voltage check device and short switch of N groups are connected with controller respectively by control line；The utility model is rational in infrastructure, and by detecting the charging/discharging voltage of each full vanadium liquid pile in battery energy storage module in real time, bridging branch road forms path and carries out short-circuit protection, prevents the overall stoppage in transit caused by indivedual Performance datas deteriorate.
Description
Technical field
All-vanadium flow battery technical field of energy storage is the utility model is related to, refers specifically to a kind of all-vanadium flow battery energy-storage module
Device.
Background technology
All-vanadium flow battery energy-storage module includes multiple piles being made up of series system, electrolyte and its storage and conveyed
System.Due to sharing electrolyte, due to pile manufacturing process deviation, pile electricity is formed after causing energy-storage module longtime running
Press inconsistent, influence whole module capacity, or even stop transport, increase O＆M cost.Therefore, it is guarantee all-vanadium liquid flow energy storage module length
Phase effectively operation, it is necessary to add pile voltage balance control, realizes the electricity between each pile in all-vanadium flow battery energy-storage module
Press Balance route.In the prior art, the application of electric voltage equalization mainly passes through list by lithium ion battery, lead-acid battery etc.
The energy-storage module of battery series-parallel connection composition, balanced principle is actively or passively to move realization by energy.It is passive balanced
It is to realize balanced by the parallel shunt element on pile, consumption high power capacity pile energy.Active equalization is by inductance, electric capacity
Or energy is transferred to the relatively low energy-storage units of terminal voltage by DC converter from the higher energy-storage units of terminal voltage.
As Chinese patent 201620808221.6 proposes a kind of Balance route for all-vanadium flow battery energy-storage module of connecting
Device, the device include pile, anode electrolyte and electrolyte liquid, and the positive pole of pile is connected by pump with anode electrolyte,
Pile negative pole is connected by pump with electrolyte liquid, pile respectively at AC/DC converters with and battery management system be connected, battery
Balancing control circuit is provided with management system, the input of AC/DC converters is connected with power supply, AC/DC converter output ends with
Load connection, by the use of super capacitor as balanced energy carrier, realizes balancing energy control.Chinese patent 201410526118.8
A kind of voltage balance control circuit is disclosed, the circuit includes：N number of switch, N number of electric capacity and controller；N number of switch is with connecting
N number of electric energy storage device connects one to one；N number of the first terminal of N number of switch and N number of electric capacity connects one to one；The N of N number of electric capacity
Individual Second terminal is connected to common neutral；Controller is connected by control line and N number of switch, for controlling N number of switch to carry out
Switch switching, realizes electric charge transfer.
Appeal patent is to configure a set of electrolyte storing/conveying system for each pile, and equivalent to one pile is one
Individual independent battery, cost is very high and is unfavorable for the engineering application of all-vanadium flow battery energy-storage system.All-vanadium flow battery energy storage
Each pile is to share a positive pole fluid reservoir and negative pole fluid reservoir in module, and pile self-energy is consistent in charge and discharge process, due to
Pile production technology and internal structure deviation, charge and discharge process can cause pile terminal voltage inconsistent because of internal driving difference,
Problem is moved in the absence of energy, therefore, prior art has yet to be improved and developed.
Utility model content
The defects of the purpose of this utility model is to be directed to prior art and deficiency, there is provided one kind uses voltage check device
The voltage at detection pile both ends in real time, short switch carry out short-circuit protection to pile by bridging branch road, can prevent indivedual piles
Overtension is too low, ensure all-vanadium liquid flow energy storage module can permanently effective operation all-vanadium flow battery energy-storage module device.
To achieve these goals, the utility model uses following technical scheme：
A kind of all-vanadium flow battery energy-storage module device described in the utility model, including form the power supply/load in loop
With full vanadium liquid energy-storage module, control loop, the full vanadium liquid energy-storage module includes N number of full vanadium liquid energy-storage pile being sequentially connected in series,
Bridging branch road corresponding to being equipped between the two poles of the earth of any full vanadium liquid energy-storage pile；The control loop is provided with controller, N groups
Voltage check device and short switch, every group of voltage check device and short switch be connected in parallel on corresponding on bridging branch road, N groups
Voltage check device and short switch be connected respectively with controller by control line.
According to above scheme, the full vanadium liquid energy-storage module also includes positive pole fluid reservoir and negative pole fluid reservoir, positive pole liquid storage
Tank is connected with N number of full vanadium liquid energy-storage pile respectively by positive pole pipeline, negative pole fluid reservoir by negative pole pipeline respectively with N number of full vanadium
Liquid energy-storage pile is connected, and infusion pump is equipped with positive pole pipeline and negative pole pipeline.
A kind of voltage balance control method of all-vanadium flow battery energy-storage module device, the controller collection voltages detection
The voltage signal of device output, by voltage signal compared with setting threshold values, when the voltage of corresponding full vanadium liquid energy-storage pile is higher than
Or during less than setting threshold range, controller output logical order closed pair answers the short switch on bridging branch road.
The utility model has the beneficial effect that：The utility model is rational in infrastructure, every in battery energy storage module by detecting in real time
The charging/discharging voltage of individual full vanadium liquid pile, when some or certain several full vanadium liquid pile charging voltages are higher than threshold values or the electric discharge of setting
When voltage is less than the threshold value set, controller controls the short switch closure in parallel with the full vanadium liquid pile, and bridging branch road is formed
Path carries out short-circuit protection to the full vanadium liquid pile, prevents the full vanadium liquid energy-storage module caused by indivedual full vanadium liquid Performance data deteriorations
Overall stoppage in transit.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
In figure：
1st, power supply/load；2nd, control loop；3rd, full vanadium liquid energy-storage pile；4th, bridging branch road；21st, controller；22nd, voltage
Detection means；23rd, short switch；31st, positive pole fluid reservoir；32nd, negative pole fluid reservoir；33rd, positive pole pipeline；34th, negative pole pipeline；35、
Infusion pump.
Embodiment
The technical solution of the utility model is illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of all-vanadium flow battery energy-storage module device described in the utility model, including form loop
Power supply/load 1 and full vanadium liquid energy-storage module, control loop 2, the full vanadium liquid energy-storage module include N number of full vanadium being sequentially connected in series
Liquid energy-storage pile 3, be equipped between the two poles of the earth of any full vanadium liquid energy-storage pile 3 corresponding to bridging branch road 4；The control loop 2
It is provided with controller 21, the voltage check device 22 and short switch 23 of N groups, every group of voltage check device 22 and short switch 23
Corresponding to being connected in parallel on bridging branch road 4, the voltage check device 22 and short switch 23 of N groups by control line respectively with controller
21 connections；N number of full vanadium liquid energy-storage pile 3 is sequentially connected in series, and N is the integer more than 1, i.e., i-th full vanadium liquid energy-storage pile 3
Negative pole is connected with the full positive pole of vanadium liquid energy-storage pile 3 of i+1, and the full vanadium liquid energy-storage pile 3 of N number of series connection is connected with power supply/load 1
Form major loop and carry out discharge and recharge；The full vanadium liquid energy-storage pile 3 and the voltage check device 22 on its both ends bridging branch road 4,
Short switch 23 forms parallel connection on major loop, so that in the case of voltage imbalance occurs in full vanadium liquid energy-storage pile 3, short switch
23 closure bridging branch roads 4 form short-circuit protection to full vanadium liquid energy-storage pile 3, prevent because indivedual full vanadium liquid 3 performances of energy-storage pile are bad
Change the overall stoppage in transit for causing full vanadium liquid energy-storage module.
The full vanadium liquid energy-storage module also includes positive pole fluid reservoir 31 and negative pole fluid reservoir 32, and positive pole fluid reservoir 31 is by just
Pole pipe road 33 is connected with N number of full vanadium liquid energy-storage pile 3 respectively, negative pole fluid reservoir 32 by negative pole pipeline 34 respectively with N number of full vanadium
Liquid energy-storage pile 3 is connected, and infusion pump 35 is equipped with positive pole pipeline 33 and negative pole pipeline 34.
A kind of voltage balance control method of all-vanadium flow battery energy-storage module device, the collection voltages of controller 21 inspection
The voltage signal that device 22 exports is surveyed, by voltage signal compared with setting threshold values, when the voltage of corresponding full vanadium liquid energy-storage pile 3
During higher or lower than setting threshold range, the output logical order closed pair of controller 21 answers the short switch 23 on bridging branch road 4.
Operation principle of the present utility model is as follows：When power supply/load 1 is in charge mode, voltage check device 22 will
The N number of voltage signal collected is transferred to controller 21, and controller 21 contrasts signal and setting threshold values, when some or it is multiple complete
When the charging voltage of vanadium liquid energy-storage pile 3 is higher than setting threshold values, the output control signal of controller 21 is opened to short circuit corresponding to closure
23 are closed, so as to form short-circuit protection to full vanadium liquid energy-storage pile 3 by bridging branch road 4, is prevented because of indivedual full vanadium liquid energy-storage piles 3
Performance degradation influences the overall working stability of full vanadium liquid energy-storage module, and vice versa.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (2)
1. a kind of all-vanadium flow battery energy-storage module device, including form the power supply/load (1) in loop and full vanadium liquid energy storage mould
Block, control loop (2), it is characterised in that：The full vanadium liquid energy-storage module includes N number of full vanadium liquid energy-storage pile being sequentially connected in series
(3) bridging branch road (4) corresponding to, being equipped between the two poles of the earth of any full vanadium liquid energy-storage pile (3)；On the control loop (2)
Voltage check device (22) and short switch (23) provided with controller (21), N groups, every group of voltage check device (22) and short circuit
Switch (23) is connected in parallel on corresponding bridging branch road (4), and the voltage check device (22) and short switch (23) of N groups pass through control
Line is connected with controller (21) respectively.
2. all-vanadium flow battery energy-storage module device according to claim 1, it is characterised in that：The full vanadium liquid energy storage mould
Block also includes positive pole fluid reservoir (31) and negative pole fluid reservoir (32), positive pole fluid reservoir (31) by positive pole pipeline (33) respectively with N
Individual full vanadium liquid energy-storage pile (3) connection, negative pole fluid reservoir (32) by negative pole pipeline (34) respectively with N number of full vanadium liquid energy-storage pile
(3) connect, infusion pump (35) is equipped with positive pole pipeline (33) and negative pole pipeline (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000655.4U CN207116584U (en) | 2017-08-11 | 2017-08-11 | A kind of all-vanadium flow battery energy-storage module device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000655.4U CN207116584U (en) | 2017-08-11 | 2017-08-11 | A kind of all-vanadium flow battery energy-storage module device |
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| Publication Number | Publication Date |
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| CN207116584U true CN207116584U (en) | 2018-03-16 |
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| CN201721000655.4U Active CN207116584U (en) | 2017-08-11 | 2017-08-11 | A kind of all-vanadium flow battery energy-storage module device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117976943A (en) * | 2024-03-27 | 2024-05-03 | 上海氢晨新能源科技有限公司 | Fuel cell voltage detection circuit and method |
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2017
- 2017-08-11 CN CN201721000655.4U patent/CN207116584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117976943A (en) * | 2024-03-27 | 2024-05-03 | 上海氢晨新能源科技有限公司 | Fuel cell voltage detection circuit and method |
| CN117976943B (en) * | 2024-03-27 | 2024-06-04 | 上海氢晨新能源科技有限公司 | Fuel cell voltage detection circuit and method |
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