Provided is a drive device for an alternating current motor which performs vector control on sensorless driving of the alternating current motor in an extremely low speed region without applying a harmonic voltage intentionally while maintaining an ideal PWM waveform. A current and a current change rate of the alternating current motor are detected, and a magnetic flux position inside of the alternating current motor is estimated and calculated in consideration of an output voltage of an inverter which causes this current change. The current change rate is generated on the basis of a pulse waveform of the inverter, and hence the magnetic flux position inside of the alternating current motor can be estimated and calculated without applying a harmonic wave intentionally.


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    Titel :

    Drive device for an alternating current motor and an electric motor vehicle


    Weitere Titelangaben:

    Antriebsvorrichtung für ein Wechselstrommotor und ein elektrisches Kraftfahrzeug
    Dispositif de commande pour un moteur à courant alternatif et une véhicule électrique


    Beteiligte:
    IWAJI YOSHITAKA (Autor:in) / KANEKO DAIGO (Autor:in) / YAMAMOTO KOUKI (Autor:in)

    Erscheinungsdatum :

    17.02.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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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