In a railway vehicle equipped with an electric motor, in order to suppress rotational speed fluctuations when wheel slip or skidding occurs, by using a simple configuration to appropriately vary a torque command reduced speed during wheel slipping or skidding, this electric motor drive device is provided with an inverter for driving the electric motor, a current detecting circuit for detecting a current of the electric motor, and a control device for controlling the inverter on the basis of a torque command value for the electric motor and a current detected value from a current detecting means, wherein the control device narrows down the torque of the electric motor by varying the torque command reduced speed for the electric motor on the basis of a wheel slip/skidding detection signal for detecting the occurrence of wheel slip or skidding of the electric motor, and the torque command value.


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    Title :

    ELECTRIC MOTOR DRIVE DEVICE, AND ELECTRIC MOTOR DRIVE METHOD


    Additional title:

    ELEKTROMOTORANTRIEBSVORRICHTUNG UND ELEKTROMOTORANTRIEBSVERFAHREN
    DISPOSITIF D'ENTRAÎNEMENT DE MOTEUR ÉLECTRIQUE ET PROCÉDÉ D'ENTRAÎNEMENT DE MOTEUR ÉLECTRIQUE


    Contributors:

    Publication date :

    2024-06-05


    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



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