A motor drive system includes a motor for driving a vehicle, an inverter, and an electronic control unit. The electronic control unit is configured to change a carrier frequency as a frequency of a carrier wave, according to operating conditions of the motor. The electronic control unit is configured to set the carrier frequency to a protection frequency when the operating point of the motor lies in a lock region, and the motor is not in an accelerating or decelerating state, and set the carrier frequency to a non-protection frequency higher than the protection frequency, when the operating point lies in the lock region, and the motor is in the accelerating or decelerating state.


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    Title :

    MOTOR DRIVE SYSTEM, AND METHOD OF CONTROLLING MOTOR DRIVE SYSTEM


    Contributors:

    Publication date :

    2019-12-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / 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



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