The invention discloses an electric quantity balancing method, system and device and a nonvolatile storage medium. The method comprises the following steps: acquiring respective working state parameters of a plurality of battery cells; the respective working state parameters of the multiple battery cells are input into a pre-trained reinforcement learning model, a switch state set is determined from the action set through the reinforcement learning model, the respective switch state parameters of the multiple battery cells indicate whether the multiple battery cells are connected with the bidirectional power converter or not, and if yes, the multiple battery cells are connected with the bidirectional power converter; the bidirectional power converter is used for realizing energy flow among a plurality of battery cells, and the action set comprises a plurality of candidate switch state sets which can be selected; and controlling the on-off of the plurality of switches according to the respective switch state parameters of the plurality of battery cells, so as to balance the electric quantity among the battery cells connected with the bidirectional power converter. According to the invention, the technical problem of low efficiency of active equalization among a plurality of battery cells in a battery pack in the prior art is solved.

    本发明公开了一种电量均衡方法、系统、装置和非易失性存储介质。其中,该方法包括:获取多个电芯各自的工作状态参数;将多个电芯各自的工作状态参数输入预先训练的强化学习模型,由强化学习模型从动作集合中确定出开关状态集合,其中,多个电芯各自的开关状态参数表示多个电芯分别是否与双向电源转换器连接,双向电源转换器用于实现多个电芯之间的能量流动,动作集合包括可供选择的多个候选开关状态集合;根据多个电芯各自的开关状态参数,控制多个开关的通断,以使连接了双向电源转换器的电芯之间进行电量均衡。本发明解决了相关技术中对电池组内的多个电芯之间进行主动均衡的效率较低的技术问题。


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    Title :

    Electric quantity balancing method, system and device and nonvolatile storage medium


    Additional title:

    电量均衡方法、系统、装置和非易失性存储介质


    Contributors:
    CHENG JIE (author) / SHEN YU (author) / WANG YIFANG (author)

    Publication date :

    2024-08-30


    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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