The invention provides a multi-battery-pack parallel management method and system, and the method comprises the steps: a main controller reads the battery state information in a BMS of each battery pack connected in parallel in the system through a communication bus, controls a charging and discharging switch and a pre-charging switch in the BMS of each battery pack based on the battery state information, and controls the enabling of a load device, the battery state information at least comprises the voltage of each battery pack, the pre-charging switch is in a default turn-on state, and the main controller is powered by the battery packs connected in parallel through a power bus; in a discharging scene, the main controller successively controls to turn on the charging and discharging switch of the battery pack with the highest voltage according to the sequence from high voltage to low voltage based on the read battery state information, and the discharging current generated by the battery pack turned on by the charging and discharging switch is transmitted on the power bus. The system comprises a main controller, a power bus and a communication bus. Multi-battery-pack parallel management which is flexible in configuration, simple in structure and convenient to operate can be achieved.

    本发明提供一种多电池组并联管理方法和系统,该方法包括:主控制器通过通信总线读取系统中并联接入的每一电池组的BMS内的电池状态信息,基于电池状态信息控制每一电池组的BMS内的充放电开关和预充电开关,并控制负载设备的使能,电池状态信息至少包含每一电池组的电压,预充电开关为默认开启状态,主控制器由并联接入的电池组通过动力总线进行供电;在放电场景下,主控制器基于读取到的电池状态信息按照电压由高到低的顺序逐次控制打开具备最高电压的电池组的充放电开关,充放电开关打开的电池组产生的放电电流在动力总线上进行传输,该系统包含主控制器、动力总线和通信总线。本发明能够实现配置灵活、结构简洁且操作方便的多电池组并联管理。


    Access

    Download


    Export, share and cite



    Title :

    Parallel management method and system for multiple battery packs


    Additional title:

    一种多电池组并联管理方法和系统


    Contributors:
    DENG NAN (author) / YANG JIANFENG (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



    Method to control multiple parallel battery packs

    CROSMAN III ALEXANDER C / OYEKAN JOSEPH OLUWAGBEMINIYI | European Patent Office | 2024

    Free access

    METHOD TO CONTROL MULTIPLE PARALLEL BATTERY PACKS

    CROSMAN III ALEXANDER C / OYEKAN JOSEPH OLUWAGBEMINIYI | European Patent Office | 2023

    Free access

    Power battery system applying parallel battery packs

    ZHANG GUOBIN | European Patent Office | 2020

    Free access

    SOC correcting system having multiple packs in parallel

    LIM JAE HWAN | European Patent Office | 2016

    Free access

    BATTERY SYSTEM AND PARALLEL PACKS CONTROL METHOD USING SAME

    CHOI MOON GYU | European Patent Office | 2024

    Free access