A power converter for converting an electric power for a motor that has three-phase winding wires includes an inverter and a controller. The controller controls the electric power supplied for the three-phase winding wires. The controller either (i) sets a two-phase modulation period for performing a two-phase modulation control when a third frequency that is calculated as a triple frequency of a base wave of the phase currents is smaller than an audible lower limit frequency of a human audible frequency range, or (ii) performs a three-phase modulation control, when the third frequency is equal to or greater than the audible lower limit frequency. In such manner, a heat generation from the maximum heat generating portion of the power converter is mitigated, and a noise that is generated in the audible frequency range is reduced.


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    Titel :

    POWER CONVERTER AND ELECTRIC POWER STEERING APPARATUS USING SAME


    Beteiligte:
    SUZUKI TAKASHI (Autor:in)

    Erscheinungsdatum :

    22.06.2017


    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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