A control apparatus for controlling an electrical unit driven by AC power, the control apparatus comprising a pair of switching elements configured to convert power from a power source into AC power and supply the AC power to the electrical unit. The control apparatus comprises the steps of generating a PWM signal on the basis of the duty command value calculated by the calculation unit and a carrier signal for performing the PWM control; controlling the AC power supplied to the electrical unit by switching a connection state of the switching element on the basis of the PWM signal generated by the generating unit; determining whether the carrier signal increases or decreases; and adjusting a switching timing of the switching element by correcting the duty command value calculated by the calculation unit on the basis of whether the carrier signal is increasing or decreasing determined by the determination unit.


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    Titel :

    Control apparatus and control method


    Beteiligte:

    Erscheinungsdatum :

    2020-01-21


    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 / B62D MOTOR VEHICLES , Motorfahrzeuge



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