The invention discloses a control method of a battery cluster parallel system and the battery cluster parallel system, and the method comprises the steps: taking a first battery cluster as a current battery cluster, and calculating a target parallel voltage when the current battery cluster operates at the maximum rated power of the current battery cluster; then, calculating the operation power of each second battery cluster when the second battery cluster operates at the target parallel voltage, and when the absolute value of the operation power of one second battery cluster is judged to be greater than the absolute value of the maximum rated power of the second battery cluster, starting the second battery cluster; taking the second battery cluster as a new current battery cluster, and re-executing the step of calculating a new target parallel voltage until the absolute values of the operating powers of all the second battery clusters are smaller than or equal to the absolute values of the maximum rated powers of all the second battery clusters; and calculating the maximum power of the battery cluster parallel system based on the operation power. The problem that the power of an individual battery cluster is over-limited due to the fact that the maximum charging and discharging power borne by each battery cluster cannot be considered when power output is carried out on a battery system at the present stage is solved.

    本发明公开了一种电池簇并联系统的控制方法和电池簇并联系统,通过将第一电池簇作为当前电池簇,计算当前电池簇以自身最大额定功率运行时的目标并联电压;然后计算每个第二电池簇以目标并联电压运行时的运行功率,并在判断出存在其中一个第二电池簇的运行功率的绝对值大于自身的最大额定功率的绝对值时,将该第二电池簇作为新的当前电池簇重新执行计算新的目标并联电压的步骤,直至所有第二电池簇的运行功率的绝对值均小于或等于自身的最大额定功率的绝对值;并基于该运行功率计算得到电池簇并联系统的系统最大功率。解决了现阶段对电池系统进行功率输出时无法考虑每一电池簇所能承受的最大充放电功率所导致的个别电池簇功率过限的问题。


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    Title :

    Control method of battery cluster parallel system and battery cluster parallel system


    Additional title:

    一种电池簇并联系统的控制方法和电池簇并联系统


    Contributors:
    ZHOU WEIQIANG (author) / WANG ZHENG (author)

    Publication date :

    2024-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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