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

Analysis of Eddy Current Loss in Brushless DC Motor according to the Swiching Frequency of the PWM Inverter

  • 김와성 (한앙대학교 전기공학과) ;
  • 최태식 (한앙대학교 전기공학과) ;
  • 김윤현 (한앙대학교 전기공학과) ;
  • 이주 (한앙대학교 전기공학과)
  • 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)
  • 발행 : 2000.07.17

초록

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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