Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Study on Energy Saving of the Motor Cooling System with an Inverter

INVERTER를 응용한 MOTOR 냉각 제어시스템의 전력절감에 관한 연구

  • 김기홍 (포항공과대학교 철강학과) ;
  • 정지훈 (포항공과대학교 전자전기공학과) ;
  • 권봉환 (포항공과대학교 전자전기공학과)
  • Published : 2004.11.12
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Abstract

This paper is concerned with the simulation and determination of the input voltage and frequency for the optimal efficiency operation of induction motors. In general, induction motors have a specific character that operation efficiency is dropped sharply at the light roads condition. Consequently, if the induction motor is controlled by high efficiency using the VVVF(variable voltage variable frequency) control methods at optimal values, the entire system can obtain the substantial energy savings from the efficiency improvement in induction motors. In this paper, optimal slip is derived from the modeling of an induction motor and the optimal hybrid-control method is suggested by the simulation of the proposed algorithm for a 3-phase induction motor.

Keywords