Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of Eddy Current Loss in Brushless DC Motor according to the Swiching Frequency of the PWM Inverter

PWM 인버터의 스위칭 주파수에 따른 브러시레스 DC 모터에서의 와전류 손실 특성 해석

  • Kim, Wa-Sung (Dept. of Electrical Engineering, Hanyang University) ;
  • Choi, Tae-Sik (Dept. of Electrical Engineering, Hanyang University) ;
  • Kim, Youn-Hyun (Dept. of Electrical Engineering, Hanyang University) ;
  • Lee, Ju (Dept. of Electrical Engineering, Hanyang University)
  • 김와성 (한앙대학교 전기공학과) ;
  • 최태식 (한앙대학교 전기공학과) ;
  • 김윤현 (한앙대학교 전기공학과) ;
  • 이주 (한앙대학교 전기공학과)
  • Published : 2000.07.17
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Abstract

In the paper the eddy current loss in brushless DC motor due to switching frequency supplied by PWM inverter, is analyzed. The compensated conductivity is used in order to analyze the eddy current loss in brushless DC motor which has lamination structure. The eddy current loss is deceased when switching frequency supplied by PWM inverter is gradually increased from 1.2kHz up to 12kHz. The high switching frequency of PWM inverter make the output wave into a similar sine wave and this leads to the decreasing eddy current loss.

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