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Integrated system of flow battery electric pile group

A liquid flow battery and integrated system technology, applied in the direction of fuel cell grouping, fuel cell additives, etc., can solve the problem that the battery system cannot continue to provide 24 hours/day uninterrupted operation service, the reliability is reduced, and the moving parts are prone to failure, etc. problems, achieve flexible and convenient expansion, improve reliability, and facilitate repair and maintenance

Active Publication Date: 2014-12-10
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The pumps, valves and other moving parts used in the flow battery system are prone to failure;
[0007] 2. The integrity of the electrolyte circulation system is strong. If there is a problem in one link, the entire battery system will not work and the reliability will decrease;
[0008] 3. If the flow battery is shut down for maintenance, the battery system cannot continue to provide 24 hours / day uninterrupted operation service

Method used

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  • Integrated system of flow battery electric pile group
  • Integrated system of flow battery electric pile group
  • Integrated system of flow battery electric pile group

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Such as figure 1 As shown, the flow battery includes a stack, positive and negative electrolyte circulation pumps, positive and negative electrolyte storage tanks, and positive and negative circulation pipelines. The flow battery used in the present invention belongs to the electrochemical flow battery. Chemical flow batteries, generally known as redox flow batteries, are a new type of large-scale electrochemical energy storage device.

[0036] figure 2 Schematic diagram of a large-scale flow battery energy storage system integrated for multiple sets of independent flow batteries.

[0037] image 3 It is a schematic diagram of a single flow battery in an integrated system using a flow battery stack, including a flow battery, an integrated branch pipeline, and an integrated main pipeline.

[0038] Such as Figure 4 As shown in , the integrated system includ...

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Abstract

The invention relates to an integrated system of a flow battery electric pile group, and is mainly characterized in that stock electric pile groups and a flow battery are integrated into a whole body by an integration branch pipeline and an integration total pipeline, and the number of electric pile groups of the flow battery taking part in the operation in the system is coordinated and managed. The integrated system of the invention can realize the unified allocation of the power of the flow battery system, is mutually redundant with auxiliary systems, and thus can increase the system efficiency and reliability.

Description

technical field [0001] The invention relates to an electrochemical energy storage system, in particular to an integrated system of a liquid flow battery electric stack. Background technique [0002] Electric energy is an indispensable commodity that is difficult to store. Its production must meet the demand for electricity at any time. Therefore, people have been looking for economically feasible energy storage technologies to balance supply and demand and stabilize power supply. Electric energy storage plays an important role in the following aspects: performing electric energy management, assisting power generation during peak power consumption, balancing loads to maintain the stability of the power grid; providing electric energy auxiliary services, including frequency regulation, operation backup, fixed storage, and long-term storage; Scattered on the nodes of power transmission and distribution, voltage control is performed to improve power quality and system stability;...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04H01M8/24
CPCY02E60/50
Inventor 陈继忠
Owner CHINA ELECTRIC POWER RES INST
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