Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Sensorless Drive Circuit of a Switched Reluctance Motor using the Variation of Phase Currents

상전류 변화를 이용한 Switched Reluctance Motor의 Sensorless 구동회로

  • Lim, J.Y. (LG Electronics Inc. Living System Lab.) ;
  • Cho, K.Y. (LG Electronics Inc. Living System Lab.) ;
  • Shin, D.J. (LG Electronics Inc. Living System Lab.) ;
  • Kim, C.H. (LG Electronics Inc. Living System Lab.) ;
  • Kim, J.C. (LG Electronics Inc. Living System Lab.)
  • 임준영 (LG 전자, 생활 시스템 연구소) ;
  • 조관열 (LG 전자, 생활 시스템 연구소) ;
  • 신두진 (LG 전자, 생활 시스템 연구소) ;
  • 김창현 (LG 전자, 생활 시스템 연구소) ;
  • 김정철 (LG 전자, 생활 시스템 연구소)
  • Published : 1995.07.20
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Abstract

A simple drive circuit without position sensors for a switched reluctance motor is presented. The turn on and turn off points are determined by detecting the rate of change of the active phase current. The drive circuit consists of a current sensing resistor, RC filter, comparator, OP Amp, and OR gates. It is verified through the experiments that the switched reluctance motor with the proposed sensorless drive circuit is well operated in wide speed ranges.

Keywords