Auto-Diagnosis for Stator Winding Faults Using Distortion Ratio of Park's Vector Pattern

Park's 벡터 패턴의 왜곡률을 이용한 고정자 권선 고장 자동진단

  • 송명현 (순천대학교 전기제어공학과) ;
  • 박규남 (순천대학교 전기제어공학과) ;
  • 한동기 (순천대학교 전기제어공학과) ;
  • 양철오 (순천대학교 전기제어공학과)
  • Published : 2008.06.01

Abstract

In this paper, an auto-diagnosis method of the stator winding fault for small induction motor is suggested. 3-phase stator currents are sampled, filtered, and transformed with Park's vector transformation. After then Park's vector patterns are obtained. To detect the stator winding fault automatically, a distortion ratio is newly defined and compared with the one of healthy motor, and the threshold levels of distortion ratio are suggested. The 2-turn, 4-turn, 8-turn winding fault are tested with no load, 25%, 50%, 75%, and 100% rated load. The distortion ratio of the Park's vector patterns are increased as the increase of the faulted turns, but are same as the increase of the load.

Keywords

References

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