Control system for all-vanadium redox flow energy storage cell stack

An all-vanadium redox flow battery and control system technology, applied in the field of all-vanadium redox flow battery stack control system, can solve the problems affecting the practicability and industrialization process of vanadium battery stack, and achieve the effect of improving practical value and market value

Inactive Publication Date: 2012-04-25
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no such an effective control system at present, which seriously affects the practicability and industrialization process of vanadium battery stacks.

Method used

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  • Control system for all-vanadium redox flow energy storage cell stack
  • Control system for all-vanadium redox flow energy storage cell stack
  • Control system for all-vanadium redox flow energy storage cell stack

Examples

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Comparison scheme
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Embodiment Construction

[0024] The all-vanadium redox flow battery stack 5 includes several stacked all-vanadium redox flow cells connected in series, and each single cell is sequentially composed of a bipolar plate, a positive electrode collector, a proton membrane, a negative electrode collector and a bipolar plate. The battery stack 5 is provided with positive and negative electrolyte main pipes, which are respectively connected to the positive liquid storage tank 9 and the negative liquid storage tank 10. The vanadium positive electrode electrolyte inlet A, the vanadium negative electrode liquid inlet B, the vanadium positive electrode electrolyte outlet C, and the vanadium negative electrode liquid outlet D. The specific structure of the positive and negative electrolyte main pipes is as follows: the positive liquid storage tank 9 and the negative liquid storage tank 10 input the electrolyte to the single cell through the positive liquid inlet pipeline and the negative liquid inlet pipeline respe...

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Abstract

The invention provides a control system for an all-vanadium redox flow cell stack. The cell stack comprises a plurality of tandem all-vanadium redox flow monocells; a positive electrolyte storage tank and a negative electrolyte storage tank are provided out of the cell stack and respectively deliver electrolyte into the monocells through a positive electrolyte inlet pipeline and a negative electrolyte inlet pipeline. The control system comprises a master controller unit, sensors, a data acquisition unit, an execution unit and fluid pumps, wherein, the sensors measure real time working parameters of the cell stack during reaction, the data acquisition unit converts the real time working parameters into data signals and sends the data signals into the master controller unit, the master controller unit carries out logical operation on the data signals and outputs control signals to the execution unit, the execution unit drives the fluid pumps to work, and there are two fluid pumps which are respectively arranged on the positive electrolyte inlet pipeline and the negative electrolyte inlet pipeline and respectively control the flow of positive electrolyte and negative electrolyte. The system reliably guarantees that the cell stack operates safely and smoothly and fulfills ideal cell performance.

Description

technical field [0001] The invention relates to a chemical energy storage battery, in particular to an all-vanadium redox flow battery stack control system. Background technique [0002] Electric energy is the most important and indispensable secondary energy in the information society, and it is the guarantee for sustainable economic development and social progress. Renewable energy sources such as wind, solar and tidal power are considered to be effective sources of future electricity and are gaining increasing attention worldwide. In order to ensure the stable power supply of the renewable energy power generation system, it should be regulated by means of electric storage and energy storage. All-vanadium redox flow battery (referred to as vanadium battery) is a new type of green energy storage battery. It has many advantages such as high current charge and discharge resistance, easy capacity adjustment, instant charging, and long life. Therefore, it is used in stationary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04
CPCY02E60/50
Inventor 禹争光邱述林郑谦薛慧婷张建普陈明东
Owner DONGFANG TURBINE CO LTD
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