Novel battery module matrix type recombination structure in energy storage battery cluster and control method

Abstract

The invention discloses a novel battery module matrix type recombination structure in an energy storage battery cluster, which comprises a battery bracket, a plurality of groups of battery modules are arranged in the battery bracket, the plurality of groups of battery modules are uniformly distributed on the battery bracket in an array structure, and module output electronic switches are arranged on the battery modules. A plurality of groups of battery module busbars used in cooperation with the module output electronic switch and the battery module are fixedly connected to the battery support in the up-down direction through supporting pieces, and a plurality of groups of bypass electronic switches used in cooperation with the battery module are arranged on the two sides of the battery support in the up-down direction; according to the invention, real-time online precise maintenance of the battery module monomers is facilitated, the method is not influenced by the serial connection form of the battery modules in the current battery cluster, and when any one battery module is in a fault state, only the single battery module needs to be isolated, so that the maintenance efficiency is improved. Therefore, safe and economical operation of the large-scale energy storage system under highly consistent working conditions can be ensured.

Description

technical field [0001] The invention relates to the technical field of structural configuration of battery cluster battery modules of an energy storage system, in particular to a matrix reorganization structure and control method of battery modules in a novel energy storage battery cluster. Background technique [0002] As the country vigorously promotes the development of the energy storage industry, the scale and number of energy storage power stations have grown rapidly. Since large-scale energy storage power stations have been put into operation and tens of thousands of batteries have been gathered for long-term operation, due to the influence of different working conditions, the Its parameters are constantly changing, resulting in changes in the consistency of the battery modules in the same battery cluster. [0003] The system cannot perform accurate online maintenance on the individual modules in real time, resulting in a decrease in the overall efficiency and service...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new battery module matrix reorganization structure and control method in the energy storage battery cluster to solve the problem of inability to perform online precise maintenance on the module monomer in real time in the above background technology, resulting in a decrease in the overall efficiency of the battery and The service life is reduced. At the same time, due to the impact of the current series connection of battery modules in the battery cluster, when any module fails, the battery cluster needs to be removed as a whole, resulting in the energy loss of the battery system.

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