The present disclosure relates to a method for controlling a dual inverter, which is configured to apply a voltage to a motor by controlling a dual inverter through six-step control in a motor driving system that uses a dual inverter, thereby further enhancing output efficiency of the inverter and the motor. The method for controlling a dual inverter, which is intended to control a first inverter and a second inverter, each of which has an output terminal commonly connected to one motor, comprises the steps of: comparing a total voltage command for driving the motor with the magnitude of a DC voltage commonly applied to the first inverter and the second inverter; and selectively applying high gain over voltage modulation (HOVM) according to a comparison result acquired in the previous step to generate a first voltage command with respect to the output of the first inverter and a second voltage command with respect to the output of the second inverter.

    듀얼 인버터를 사용하는 모터 구동 시스템에서 6-스텝 제어를 통해 듀얼 인버터를 제어하여 모터에 전압을 인가함으로써 인버터와 모터의 출력 효율을 더욱 향상시킬 수 있는 듀얼 인버터의 제어 방법이 개시된다. 상기 듀얼 인버터의 제어 방법은, 하나의 모터에 공통으로 출력단이 연결된 제1 인버터 및 제2 인버터를 제어하는 듀얼 인버터의 제어 방법으로서, 상기 모터를 구동하기 위한 전체 전압 지령과 상기 제1 인버터 및 제2 인버터에 공통으로 인가되는 직류 전원 전압의 크기를 비교하는 단계; 및 상기 비교하는 단계의 비교 결과에 따라 HOVM(High gain Over Voltage Modulation)를 선택적으로 적용하여 상기 제1 인버터의 출력에 대한 제1 전압 지령 및 상기 제2 인버터의 출력에 대한 제2 전압 지령을 생성하는 단계를 포함한다.


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    Title :

    METHOD FOR CONTROLLING DUAL INVERTER


    Additional title:

    듀얼 인버터의 제어 방법


    Contributors:
    PARK JOO YOUNG (author) / KWAK MU SHIN (author) / SHIN HO JOON (author) / BAE SU HYUN (author) / AN JUN MO (author) / KIM SUNG KYU (author)

    Publication date :

    2018-06-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / 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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