The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Early Detection Technique in IPM-type Motor with Stator-Turn Fault using Impedance Parameter

임피던스 성분을 이용한 매입형 영구자석 전동기의 고정자 절연파괴 고장의 초기 검출 기법

  • 정채림 (울산대학교 대학원 전기공학부) ;
  • 김경태 (울산대학교 대학원 전기공학부) ;
  • 허진 (울산대 전기전자정보시스템 공학부)
  • Received : 2013.03.21
  • Accepted : 2013.04.25
  • Published : 2013.05.01
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Abstract

This paper proposes an early diagnosis technique for the stator-turn fault (STF) in an interior permanent magnet (IPM)-type brushless DC (BLDC) motor using the impedance parameter. We have analyzed the varying characteristics owing to the STF through various experiments and the finite element method (FEM). As a result, we have presented a simple method for fault detection. This technique can be applied without requiring a fast Fourier transform (FFT) and the calculation of the negative-sequence impedance. The fault detection system works on the basis of the comparison the measured impedance with the database impedance. The variations in the characteristics owing to the STF as well as the proposed technique have been verified through the simulation and experiment.

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References

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