The invention relates to a permanent magnet synchronous motor current loop control method which is executed by a vehicle and comprises the following steps: acquiring real-time current passing through a permanent magnet synchronous motor stator winding of the vehicle under a three-phase static coordinate system; converting the real-time current under the three-phase static coordinate system into a d-axis current and a q-axis current under a two-phase rotating coordinate system; generating a d-axis voltage signal and a q-axis voltage signal according to the d-axis current, the q-axis current, the rotating speed of the motor and the current command; performing decoupling operation on the d-axis voltage signal and the q-axis voltage signal to obtain a d-axis command voltage and a q-axis command voltage; obtaining an overcurrent fault flag bit according to the d-axis current and the q-axis current; determining PWM switching frequency and current loop PI controller parameters based on the rotating speed of the motor; and controlling a permanent magnet synchronous motor current loop in the vehicle according to the d-axis voltage signal, the q-axis voltage signal, the overcurrent fault flag bit, the PWM switching frequency and the parameters of the current loop PI controller.

    本申请是关于一种永磁同步电机电流环控制方法,方法由车辆执行,方法包括:获取经车辆的永磁同步电机定子绕组的三相静止坐标系下的实时电流;将三相静止坐标系下的实时电流转换为两相旋转坐标系下的d轴电流和q轴电流;根据d轴电流、q轴电流、电机转速以及电流命令,生成d轴电压信号以及q轴电压信号;对d轴电压信号以及q轴电压信号执行解耦操作,获取d轴命令电压以及q轴命令电压;根据d轴电流以及q轴电流获取过流故障标志位;基于电机转速确定PWM开关频率以及电流环PI控制器参数;根据d轴电压信号、q轴电压信号、过流故障标志位、PWM开关频率以及电流环PI控制器参数控制车辆中的永磁同步电机电流环。


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    Title :

    Permanent magnet synchronous motor current loop control method, device and equipment and storage medium


    Additional title:

    永磁同步电机电流环控制方法、装置、设备及存储介质


    Contributors:
    XU ZHONGFU (author) / YU YAO (author) / LI XIANGLI (author) / YANG WENKAI (author) / WU TENG (author) / ZHANG YUSHENG (author) / ZHOU JUN (author)

    Publication date :

    2025-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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