The invention provides an active discharge control method and device for a bus capacitor, a motor controller and a vehicle, constant discharge current is formed by combining obtained discharge control information with IGBT switching circuit control, the constant discharge current can generate electromagnetic torque in the rotor zero-degree angle direction of a controlled motor, and the electromagnetic torque can be controlled to control the bus capacitor. The rotor of the controlled motor can be locked at the zero-degree angle position, safety risks caused by rotation of the motor in the active discharging process of a bus capacitor are avoided, the discharging process is safer and more reliable, meanwhile, active discharging control is carried out through cooperation of discharging control information and an IGBT switching circuit, a complex vector conversion process is not needed, and the cost is reduced. The discharge control process is more convenient and efficient.

    本发明提供一种母线电容的主动放电控制方法、装置、电机控制器及车辆,通过获得的放电控制信息,结合IGBT开关电路控制形成恒定放电电流,该恒定放电电流能够产生被控电机的转子零度角方向的电磁转矩,可以将被控电机的转子锁定在零度角位置,避免母线电容的主动放电过程中因电机转动引发的安全风险,使得放电过程更加安全可靠,同时,利用放电控制信息配合IGBT开关电路进行主动放电控制,无需复杂的矢量变换过程,放电控制过程更加便捷高效。


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    Title :

    Active discharge control method and device of bus capacitor, motor controller and vehicle


    Additional title:

    母线电容的主动放电控制方法、装置、电机控制器及车辆


    Contributors:
    WANG MANJIANG (author) / LI LI (author) / NI CHENGQUN (author)

    Publication date :

    2022-05-13


    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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