조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

  • 제26권3호
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  • Pages.61-68
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  • 2012
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  • 1229-4691(pISSN)
  • /
  • 2287-5034(eISSN)
한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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매입형 영구자석 동기전동기 구동용 인버터 스위칭 소자의 개방 고장 진단

A Diagnosis Scheme of Switching Devices under Open Fault in Inverter-Fed Interior Permanent Magnet Synchronous Motor Drive

  • 최동욱 (서울과학기술대학교 전기공학과) ;
  • 김경화 (서울과학기술대학교 전기공학과)
  • 투고 : 2012.01.11
  • 심사 : 2012.02.20
  • 발행 : 2012.03.31
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초록

This paper deals with a fault diagnosis algorithm for open faults in the switching devices of PWM inverter-fed IPMSM (Interior Permanent Magnet Synchronous Motor) drive. The proposed diagnostic algorithm is realized in the controller using the informations of three-phase currents or reference line-to-line voltages, without requiring additional equipments for fault detection. Under switch open fault conditions, the conventional dq model used to control an AC motor cannot directly be applied for the analysis of drive system, since three-phase balanced condition does not hold. To overcome this limitation, a fault model based on the line-to-line voltages is employed for the simulation studies. For comparative performance evaluation through the experiments, the entire control system is implemented using digital signal processor (DSP) TMS320F28335. Simulations and experimental results are presented to verify the validity of the proposed diagnosis algorithm.

키워드

참고문헌

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