The invention discloses a daisy chain structure battery management system applied to an energy storage system, and particularly relates to the daisy chain structure battery management system applied to the energy storage system. The battery management system comprises battery modules, battery management units BMU and a battery control unit BCU. Each battery module is formed by connecting a plurality of single batteries in series, and one battery module and one battery management unit are integrated in one battery module box body; isolation SPI communication is adopted between the battery management units to form a daisy chain structure, and the daisy chain structure is connected to the battery control unit. The battery modules are connected in series to form a battery cluster; two clustersof batteries are connected in parallel to a direct-current bus to form an energy storage battery system; the battery management units in each cluster of batteries form a daisy chain type communication link, and two communication links are connected to a battery control unit.

    本发明公开了一种应用于储能系统的菊花链式结构电池管理系统,具体涉及到一种应用于储能系统的菊花链式结构电池管理系统。该电池管理系统包括电池模组、电池管理单元BMU和电池控制单元BCU。电池模组由多个单体电池串联而成,一个电池模组和一个电池管理单元集成在一个电池模组箱体内;电池管理单元之间采用隔离SPI通信,形成菊花链式结构,接入电池控制单元。电池模组串联构成电池簇,两簇电池并联接入直流母线组成储能电池系统;每簇电池中的电池管理单元形成一条菊花链式通信链路,两条通信链路接入一个电池控制单元。


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    Title :

    Daisy chain structure battery management system applied to energy storage system


    Additional title:

    一种应用于储能系统的菊花链式结构电池管理系统


    Contributors:

    Publication date :

    2021-01-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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