An AC motor drive control device including: an inverter INV, having a plurality of switching elements subjected to on-off control, for converting a DC voltage to an AC voltage with a desired frequency to drive an AC motor 6; a motor opening contactor MMK connected between the inverter INV and the AC motor 6; a switching operation beforehand detection unit 55 for detecting a switching operation of the motor opening contactor MMK prior to the contact or detach of main contacts and outputting a switching operation beforehand detection signal; and a control unit 10A having an inverter control unit 70 for performing the on-off control for the plurality of switching elements and switching control for the motor opening contactor MMK, and controlling the inverter INV based on the switching operation beforehand detection signal.


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    Title :

    DRIVE CONTROL DEVICE OF ALTERNATING-CURRENT MOTOR


    Additional title:

    ANTRIEBSSTEUERVORRICHTUNG FÜR EINEN WECHSELSTROMMOTOR
    DISPOSITIF DE COMMANDE DE PILOTAGE D'UN MOTEUR À COURANT ALTERNATIF


    Contributors:

    Publication date :

    2016-10-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H01H Elektrische Schalter , ELECTRIC SWITCHES / 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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