The present invention relates to a power conversion apparatus for protecting an elevator motor and, more specifically, to a power conversion apparatus for protecting an elevator motor configured with a multi-level inverter providing alternating current power to the motor to reduce high-peak harmonic noise occurring in an output voltage provided from the inverter to the motor caused by a long cable even in a structure wherein the motor and the inverter have to be connected by the long cable, thereby decreasing damage or an incorrect operation of the motor even though the motor has a low insulation level and lowering a capacity of a filter disposed between the inverter and the motor.

    본 발명은 엘리베이터 전동기 보호용 전력변환장치에 관한 것으로, 보다 구체적으로 전동기로 교류 전원을 제공하는 인버터를 멀티 레벨 인버터로 구성하여 전동기와 인버터가 긴 케이블로 연결되어야 하는 구조에서도 긴 케이블로 인해 인버터에서 전동기로 제공하는 출력 전압에 발생하는 높은 피크치의 고조파 잡음을 줄여줌으로써, 낮은 절연등급의 전동기에서도 전동기의 파손이나 오동작을 줄여주며 인버터와 전동기 사이에 배치되는 필터의 용량을 낮출 수 있는 엘리베이터 전동기 보호용 전력변환장치에 관한 것이다.


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    Title :

    Apparatus for driving motor for elevator


    Additional title:

    엘리베이터 전동기 보호용 전력변환장치


    Publication date :

    2021-11-26


    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 / B66B Aufzüge , ELEVATORS / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / 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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