The invention relates to the technical field of battery management, and discloses a battery impedance determination method and system, electronic equipment and a readable storage medium, and the method comprises the steps: obtaining a battery output parameter and an equivalent circuit model of a target battery, and carrying out the parameter identification of the equivalent circuit model, thereby obtaining an equivalent electrochemical parameter; updating the equivalent electrochemical parameters based on the battery output parameters to obtain high-frequency impedance in the equivalent electrochemical parameters, and determining low-frequency impedance corresponding to the target battery based on cathode Faraday resistance in the equivalent electrochemical parameters so as to determine battery impedance parameters of the target battery; the equivalent electrochemical parameters corresponding to the equivalent circuit model are determined according to the battery output parameters of the target battery, so that the high-frequency impedance and the high-frequency impedance of the target battery are determined according to the equivalent electrochemical parameters, the acquisition time of the battery impedance value is greatly shortened, and the battery impedance in the fuel battery is monitored in real time; and the mass transfer resistance and the loss source of the target battery are analyzed in real time.

    本发明涉及电池管理技术领域,公开了一种电池阻抗确定方法、系统、电子设备及可读存储介质,该方法通过获取目标电池的电池输出参数和等效电路模型,通过对等效电路模型进行参数辨识,得到等效电化学参数,基于电池输出参数更新等效电化学参数,得到等效电化学参数中的高频阻抗,并基于等效电化学参数中的阴极法拉第电阻确定目标电池对应的低频阻抗,从而确定目标电池的电池阻抗参数,通过目标电池的电池输出参数确定对应等效电路模型的等效电化学参数,从而根据等效电化学参数确定目标电池的高频阻抗和高频阻抗,大大缩短了电池阻抗值的获取时间,实现对燃料电池中电池阻抗的实时监测,进而实时分析目标电池的传质阻力和损耗源。


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    Titel :

    Battery impedance determination method and system, electronic equipment and readable storage medium


    Weitere Titelangaben:

    电池阻抗确定方法、系统、电子设备及可读存储介质


    Beteiligte:
    LI YU (Autor:in) / ZENG TAO (Autor:in) / CHEN JINRUI (Autor:in) / LI CHANGCHUN (Autor:in)

    Erscheinungsdatum :

    2023-06-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G16C / 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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