CN205609672U - Liquid stream energy storage battery system of multi -electrode flow automatic equalization - Google Patents
Liquid stream energy storage battery system of multi -electrode flow automatic equalization Download PDFInfo
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- CN205609672U CN205609672U CN201620456864.9U CN201620456864U CN205609672U CN 205609672 U CN205609672 U CN 205609672U CN 201620456864 U CN201620456864 U CN 201620456864U CN 205609672 U CN205609672 U CN 205609672U
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- liquid stream
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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
Abstract
The utility model discloses a liquid stream energy storage battery system of multi -electrode flow automatic equalization, including redox flow battery group, battery management system, pump circulation system and flow control system, redox flow battery group is including the monocell heap of a plurality of mutual series connection, and pump circulation system includes and positive electrode liquid stream jar, negative electrode liquid stream jar, anodal liquid stream delivery pump and negative pole liquid stream delivery pump is equipped with anodal liquid stream delivery pump on the pipeline in positive electrode liquid stream jar exit, is equipped with negative pole liquid stream delivery pump on the pipeline in negative electrode liquid stream jar exit, the flow control system includes voltage signal collector, liquid stream proportional amplifier and liquid stream proportional control valve, and the output that each monocell is piled in the redox flow battery group all is equipped with the voltage signal collector, all is equipped with liquid stream proportional control valve on the connecting line that anodal liquid stream delivery pump and each monocell are piled. The utility model discloses can realize the output relative equilibrium that each monocell is piled in the whole battery system, the input cost of the production facility that significantly reduces.
Description
Technical field
This utility model relates to liquid energy-storage power technique fields, particularly relates to the liquid flow energy storage battery system of a kind of multi-electrode flow automatic equalization.
Background technology
All vanadium flow energy-storage battery system is mainly made up of parts such as multiple liquid stream piles, both positive and negative polarity anolyte storage tank, transport pump device and power control systems.Owing to the voltage of single battery heap only has 1.2V, generally utilizing the series connection of cell stack to realize the adjustment of battery voltage inside all vanadium flow energy-storage battery system, the adjustment of battery capacity is then realized by the size changing cell stack.Therefore, the concordance of each monocell performance forming whole all vanadium flow energy-storage battery system is to ensure that whole battery system is stable, safe, the key factor of long-acting work.At present, the approach solving cell stack consistency of performance generally adjusts the physical arrangement of pile, such as controls the machining accuracy of battery lead plate, adjusts the frame for movement etc. of liquid stream input equipment, and production cost is too high, it is achieved difficulty is bigger.
Utility model content
The purpose of this utility model is to provide the liquid flow energy storage battery system of a kind of multi-electrode flow automatic equalization, it is possible to the electrical property being controlled each cell stack by foreign intervention is exported, and in the energy storage battery system concordance of each cell stack output voltage is effectively ensured.
For achieving the above object, the technical solution adopted in the utility model is；
nullA kind of liquid flow energy storage battery system of multi-electrode flow automatic equalization，Including flow battery group、Battery management system、Pump blood circulation and flow control system，Described battery management system includes direct-flow inverter and controller，The outfan of flow battery group connects direct-flow inverter，Direct-flow inverter is electrically connected with the controller，Described flow battery group includes multiple cell stack being serially connected，Described pump blood circulation includes anelectrode liquid stream tank、Negative electrode liquid stream tank、Positive pole liquid stream delivery pump and negative pole liquid stream delivery pump，The entrance of anelectrode liquid stream tank is exported with the anode electrolyte of each cell stack respectively by pipeline and is connected，The outlet of anelectrode liquid stream tank is connected with the anode electrolyte entrance of each cell stack respectively by pipeline，The pipeline in anelectrode liquid stream tank exit is provided with positive pole liquid stream delivery pump，The entrance of negative electrode liquid stream tank is exported with the electrolyte liquid of each cell stack respectively by pipeline and is connected，The outlet of negative electrode liquid stream tank is connected with the electrolyte liquid entrance of each cell stack respectively by pipeline，The pipeline in negative electrode liquid stream tank exit is provided with negative pole liquid stream delivery pump；
Described flow control system includes voltage signal collector, liquid ratio amplifier and liquid ratio control valve, in flow battery group, the outfan of each cell stack is equipped with voltage signal collector, voltage signal collector electrically connects with the input of controller, positive pole liquid stream delivery pump is equipped with liquid ratio control valve on the connecting line of each cell stack, and the outfan of controller connects liquid ratio control valve by liquid ratio amplifier.
The input of described voltage signal collector connects the positive pole of each cell stack and the total voltage negative pole of flow battery group respectively.
Described liquid ratio control valve is proportional flow control valve.
This utility model utilizes voltage signal collector to obtain the output voltage between the positive pole of each cell stack and the total voltage negative pole of flow battery group, controller calculates the voltage fluctuation signal of each cell stack according to the multiple voltage signals obtained, and drive corresponding liquid ratio control valve according to voltage fluctuation signal, the electrode flow of the cell stack that regulation is corresponding, thus realize the output relative equilibrium of each cell stack in whole battery system, this utility model is not only simple in structure, and easily realize, greatly reduce the input cost of production equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, electrode flow described in the utility model adjustable liquid flow energy storage battery system, including flow battery group 1, battery management system, pump blood circulation and flow control system, battery management system includes direct-flow inverter 2 and controller 3, the outfan of flow battery group 1 connects direct-flow inverter 2, thering is provided electric energy output for load, direct-flow inverter 2 electrically connects with controller 3, it is achieved management and the control to whole battery system.
nullFlow battery group 1 includes multiple cell stack being serially connected，Pump blood circulation provides basic service condition for flow battery group 1，Including anelectrode liquid stream tank 4、Negative electrode liquid stream tank 5、Positive pole liquid stream delivery pump 6 and negative pole liquid stream delivery pump 7，The entrance of anelectrode liquid stream tank 4 is exported with the anode electrolyte of each cell stack respectively by pipeline and is connected，The outlet of anelectrode liquid stream tank 4 is connected with the anode electrolyte entrance of each cell stack respectively by pipeline，The pipeline in anelectrode liquid stream tank 4 exit is provided with positive pole liquid stream delivery pump 6，The entrance of negative electrode liquid stream tank 5 is exported with the electrolyte liquid of each cell stack respectively by pipeline and is connected，The outlet of negative electrode liquid stream tank 5 is connected with the electrolyte liquid entrance of each cell stack respectively by pipeline，The pipeline in negative electrode liquid stream tank 5 exit is provided with negative pole liquid stream delivery pump 7.
Flow control system includes voltage signal collector 8, liquid ratio amplifier 9 and liquid ratio control valve 10, in flow battery group 1, the outfan of each cell stack is equipped with voltage signal collector 8, for gathering the output voltage between the positive pole of each cell stack and the total voltage negative pole of flow battery group 1, positive pole liquid stream delivery pump 6 is equipped with liquid ratio control valve 10 on the connecting line of each cell stack, the input of controller 3 connects voltage signal collector 8, the outfan of controller 3 connects liquid ratio control valve 10 by liquid ratio amplifier 9, liquid ratio control valve 10 adoption rate flow valve in the present embodiment.
Operation principle from liquid flow energy storage battery system, total output voltage of flow battery group 1 is relatively fixed, its output is determined by the size exporting electric current, and the size exporting electric current is to be determined by the size of input electrode flow, in the set of cells that multiple cell stack are composed in series, the electric current of each cell stack is identical, therefore when the output of certain cell stack relatively large or less time, the output voltage of this cell stack will be of a relatively high or relatively low.By measuring the voltage of cell stack and comparing with total output voltage, with the voltage signal difference produced, the electrode flow of this cell stack is suitably adjusted, it is possible to realize the Balance route between each cell stack output.
nullOperation principle of the present utility model is: in the work process of battery system，Voltage signal collector 8 gathers the output voltage between the positive pole of each cell stack and the total voltage negative pole of flow battery group 1，Controller 3 calculates the output voltage of each cell stack according to the multiple voltage signals obtained，And the average voltage of cell stack is calculated according to total output voltage of flow battery group 1 and the number of cell stack，Voltage fluctuation signal is obtained with average voltage by comparing the output voltage of cell stack，Voltage fluctuation signal is converted into the input signal of liquid ratio amplifier 9 by controller 3，When the output voltage of certain cell stack is higher，The corresponding liquid ratio control valve 10 that drives controller 3 reduces the output of electrode flow，When the output voltage of cell stack is on the low side，Controller drives corresponding liquid ratio control valve 10 to increase the output of electrode flow，Finally realize the output relative equilibrium of each cell stack in whole battery system.This utility model can control the electrical property output of each cell stack by foreign intervention, it is achieved the output relative equilibrium of each cell stack, simple in construction in whole battery system, easily realizes, greatly reduces the input cost of production equipment.
Claims (3)
- null1. the liquid flow energy storage battery system of a multi-electrode flow automatic equalization，It is characterized in that: include flow battery group、Battery management system、Pump blood circulation and flow control system，Described battery management system includes direct-flow inverter and controller，The outfan of flow battery group connects direct-flow inverter，Direct-flow inverter is electrically connected with the controller，Described flow battery group includes multiple cell stack being serially connected，Described pump blood circulation includes anelectrode liquid stream tank、Negative electrode liquid stream tank、Positive pole liquid stream delivery pump and negative pole liquid stream delivery pump，The entrance of anelectrode liquid stream tank is exported with the anode electrolyte of each cell stack respectively by pipeline and is connected，The outlet of anelectrode liquid stream tank is connected with the anode electrolyte entrance of each cell stack respectively by pipeline，The pipeline in anelectrode liquid stream tank exit is provided with positive pole liquid stream delivery pump，The entrance of negative electrode liquid stream tank is exported with the electrolyte liquid of each cell stack respectively by pipeline and is connected，The outlet of negative electrode liquid stream tank is connected with the electrolyte liquid entrance of each cell stack respectively by pipeline，The pipeline in negative electrode liquid stream tank exit is provided with negative pole liquid stream delivery pump；Described flow control system includes voltage signal collector, liquid ratio amplifier and liquid ratio control valve, in flow battery group, the outfan of each cell stack is equipped with voltage signal collector, voltage signal collector electrically connects with the input of controller, positive pole liquid stream delivery pump is equipped with liquid ratio control valve on the connecting line of each cell stack, and the outfan of controller connects liquid ratio control valve by liquid ratio amplifier.
- 2. the liquid flow energy storage battery system of multi-electrode flow automatic equalization as claimed in claim 1, it is characterised in that: the input of described voltage signal collector connects the positive pole of each cell stack and the total voltage negative pole of flow battery group respectively.
- 3. the liquid flow energy storage battery system of multi-electrode flow automatic equalization as claimed in claim 2, it is characterised in that: described liquid ratio control valve is proportional flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456864.9U CN205609672U (en) | 2016-05-19 | 2016-05-19 | Liquid stream energy storage battery system of multi -electrode flow automatic equalization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456864.9U CN205609672U (en) | 2016-05-19 | 2016-05-19 | Liquid stream energy storage battery system of multi -electrode flow automatic equalization |
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| CN205609672U true CN205609672U (en) | 2016-09-28 |
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| CN201620456864.9U Expired - Fee Related CN205609672U (en) | 2016-05-19 | 2016-05-19 | Liquid stream energy storage battery system of multi -electrode flow automatic equalization |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635148A (en) * | 2019-09-23 | 2019-12-31 | 中国东方电气集团有限公司 | Flow battery |
| CN113314737A (en) * | 2021-03-19 | 2021-08-27 | 北京和瑞储能科技有限公司 | Flow battery pipeline system |
| CN114122536A (en) * | 2021-10-27 | 2022-03-01 | 北京和瑞储能科技有限公司 | Battery pack performance testing device |
-
2016
- 2016-05-19 CN CN201620456864.9U patent/CN205609672U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635148A (en) * | 2019-09-23 | 2019-12-31 | 中国东方电气集团有限公司 | Flow battery |
| CN113314737A (en) * | 2021-03-19 | 2021-08-27 | 北京和瑞储能科技有限公司 | Flow battery pipeline system |
| CN114122536A (en) * | 2021-10-27 | 2022-03-01 | 北京和瑞储能科技有限公司 | Battery pack performance testing device |
| CN114122536B (en) * | 2021-10-27 | 2024-02-09 | 北京和瑞储能科技有限公司 | Battery pack performance testing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |