The invention discloses a multi-branch parallel battery pack discharge working condition circulation control method, device and equipment and a storage medium, and relates to the technical field of battery management, and the multi-branch parallel battery pack discharge working condition circulation control method comprises the following steps: detecting the state of charge of a multi-branch parallel battery pack, when the percentage of the residual electric quantity in the total capacity is smaller than a preset percentage, detecting the duration of the discharge working condition; when the duration of the discharge working condition is greater than a preset duration, determining a discharge current limit according to a discharge current difference value between branches, a maximum allowable discharge current, the lowest monomer voltage of the branch with the maximum discharge current, the current discharge power and the number of the branches; and when the duration of the discharge working condition is not greater than the preset duration, determining the discharge current limit according to the discharge current difference between the branches, the maximum allowable discharge current and the minimum monomer voltage of the branch with the maximum discharge current. The circulating current influence caused by the end of the discharge working condition can be reduced.

    本申请公开了一种多支路并联电池包放电工况环流控制方法、装置、设备以及存储介质,涉及电池管理技术领域,所述多支路并联电池包放电工况环流控制方法包括:检测多支路并联电池包的荷电状态,当剩余电量占总容量的百分比小于预设百分比时,检测放电工况持续时长;当所述放电工况持续时长大于预设时长时,根据支路间放电电流差值、最大允许放电电流、放电电流最大支路的最低单体电压、当前放电功率以及支路数量确定放电电流限制;当所述放电工况持续时长不大于预设时长时,根据支路间放电电流差值、最大允许放电电流、放电电流最大支路的最低单体电压确定放电电流限制。本申请能降低放电工况结束带来的环流电流影响。


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    Title :

    Multi-branch parallel battery pack discharge working condition circulation control method, device and equipment and storage medium


    Additional title:

    多支路并联电池包放电工况环流控制方法、装置、设备以及存储介质


    Contributors:
    LEI SHAN (author) / WU ZHI (author) / DONG ZHUANG (author) / TANG-YANG XINTAI (author)

    Publication date :

    2025-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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