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.


    Access

    Download


    Export, share and cite



    Title :

    POWER CONVERTER AND ELECTRIC POWER STEERING APPARATUS USING SAME


    Contributors:

    Publication date :

    2017-06-22


    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 / B62D MOTOR VEHICLES , Motorfahrzeuge



    Power converter and electric power steering apparatus using same

    SUZUKI TAKASHI | European Patent Office | 2019

    Free access

    Electric Power Converter and Electric Power Steering Apparatus Mounting Same

    AOYAGI SHIGEHISA | European Patent Office | 2018

    Free access

    Power converter and electric power steering system using the same

    SUZUKI TAKASHI | European Patent Office | 2022

    Free access

    POWER CONVERTER AND ELECTRIC POWER STEERING SYSTEM USING THE SAME

    SUZUKI TAKASHI | European Patent Office | 2020

    Free access

    TILTING STRUCTURE OF ELECTRIC POWER STEERING APPARATUS AND ELECTRIC POWER STEERING APPARATUS INCLUDING SAME

    PARK SE-JUNG / SON CHANG-WOOK / KIM BONG-JU et al. | European Patent Office | 2017

    Free access