The invention discloses a discharge control method, a motor controller, a motor driving system and a storage medium, and relates to the technical field of motor driving, the method is applied to the motor controller, and the method comprises the following steps: obtaining fault diagnosis information of a three-phase bridge arm circuit; determining a target control combination in a plurality of preset discharge control combinations according to the fault diagnosis information; wherein the discharge control combination is a combination formed by power switches which are controlled to be conducted, and the discharge control combination comprises a three-phase discharge combination and/or a two-phase discharge combination; and conducting control is carried out on the corresponding power switch in the target control combination, so that direct current flows through the three-phase winding or the two-phase winding of the motor, and energy release is carried out on the bus capacitor. The problems that an active discharging mode of a motor driving system is high in cost and complex in control mode are solved, and the effects of simplifying the discharging control process and avoiding cost increase are achieved.

    本申请公开了一种放电控制方法、电机控制器、电机驱动系统及存储介质,涉及电机驱动技术领域,方法应用于电机控制器,包括:获取三相桥臂电路的故障诊断信息;根据故障诊断信息,在预设的多个放电控制组合中确定目标控制组合;其中,放电控制组合为被控导通的功率开关构成的组合,放电控制组合包括三相放电组合和/或两相放电组合;对目标控制组合中对应的功率开关进行导通控制,使电机的三相绕组或两相绕组流通直流电,以对母线电容进行能量释放。本申请解决了电机驱动系统的主动放电方式存在成本较高且控制方式复杂的问题,实现了简化放电控制过程和避免成本增加的效果。


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    Title :

    Discharge control method, motor controller, motor driving system and storage medium


    Additional title:

    放电控制方法、电机控制器、电机驱动系统及存储介质


    Contributors:
    WANG BO (author) / ZHANG WEN (author)

    Publication date :

    2024-01-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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