본 발명에 관한 전력변환 제어장치는, 직류전력을 교류전력으로 변환하는 전력변환부(2)를 변조파 및 반송파에 근거하여 제어하는 전력변환 제어장치로서, 출력전압 위상각 지령과 변조율에 근거하여 변조파를 생성하는 변조파 생성부(6)와, 과변조 상태가 아닌 경우, 삼각파 또는 톱니파를 반송파로서 생성하고, 과변조 상태인 경우에는, 변조파의 피크 위치에 대응하는 타이밍을 중심으로 한 소정 범위인 제1 구간에서 -1 고정의 신호를 반송파로서 생성하며, 제1 구간을 변조파의 반주기분 시프트시킨 제3 구간에서는 +1 고정의 신호를 반송파로서 생성하고, 나머지의 제2 구간에서는 삼각파 또는 톱니파를 반송파로서 생성하는 반송파 생성부(5)와, 반송파와 변조파를 비교하여 스위칭 신호를 생성하는 비교부(7)를 구비한다.

    A power conversion control device according to the present invention is a power conversion control device that controls, based on a modulation wave and a carrier wave, a power conversion unit (2) converting direct-current power into alternating-current power, includes a modulation-wave generating unit (6) generating a modulation wave based on output voltage phase angle command and modulation factor, a carrier-wave generating unit (5) that, in a case of non-overmodulation state, generates a triangular wave or saw-tooth wave as the carrier wave, and, in a case of overmodulation state, generates, as the carrier wave, a signal fixed to -1 in a first section that is a predetermined range centering on timing corresponding to a peak position of the modulation wave, generates, as the carrier wave, a signal fixed to +1 in a second section obtained by shifting the first section by a half cycle of the modulation wave, and generates, as the carrier wave, a triangular wave or saw-tooth wave in remaining third section, and a comparing unit (7) that compares the carrier wave and the modulation wave and generates a switching signal.


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    Title :

    POWER CONVERSION CONTROL DEVICE POWER CONVERSION CONTROL METHOD ELECTRIC MOTOR AND VEHICLE DRIVE SYSTEM


    Additional title:

    전력변환 제어장치, 전력변환 제어방법, 전동기 및 차량구동 시스템


    Publication date :

    2016-07-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 / 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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