Controllable battery module

A battery module and battery technology, applied in the direction of secondary battery repair/maintenance, etc., can solve the problems of battery short board effect, battery cell capacity and life loss, limiting the overall life of the battery system, etc., to improve life and reliability. Effect
CN102332619BInactive Publication Date: 2015-01-14SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2015-01-14
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a controllable battery module. The controllable battery module comprises four controllable switches and a battery string which consists of energy storage battery monomers, wherein the four controllable switches are divided into two groups, and the two groups of controllable switches are connected in series respectively, and then are connected with the battery string in parallel; and the connecting points of the two groups of controllable switches which are connected in series are two leading-out line endpoints of the controllable battery module. By using the controllable battery module, different battery modules in a battery system can be controlled to be in different working states, the equilibrium operation and fault tolerance of the battery modules and mixed operation of the battery modules with different capacities are realized, and the service life and the reliability of the battery system are improved.
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Description

technical field

[0001] The present invention relates to a controllable battery module, in particular to a controllable battery module that can connect the battery forwardly or reversely into the loop or bypass the loop to control the charging and discharging of the battery, and is used for large-capacity Battery energy storage occasions. It belongs to the field of battery energy storage. Background technique

[0002] The use of battery energy storage to smooth wind power and photovoltaic power generation is an effective way to solve the difficulty of new energy grid connection and the problem of "abandoning wind" of wind power. The application of large-scale battery energy storage in the power grid will change the history that electric energy can only be transmitted but not stored, will have a revolutionary impact on power production and operation, and will greatly promote the development of smart grids.

[0003] Since the battery cell voltage is low (less than 5VDC), the ...

Claims

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