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

The Korean Institute of Electrical Engineers (대한전기학회)
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Interturn Fault Diagnosis Method of Induction Motor by Impedance Magnitude Comparison

임피던스 크기 비교를 통한 유도모터 턴쇼트 고장진단법

  • Gu, Bon-Gwan (School of Energy Engineering, Kyungpook National University) ;
  • Park, Joon Sung (Korea Electronics Technology Institute (KETI)) ;
  • Kong, Tae-Sik (KEPCO research institute(KEPRI)) ;
  • Kim, Taewon (Research institute of industrial science & technology(RIST)) ;
  • Park, Taejoon (Research institute of industrial science & technology(RIST))
  • Received : 2016.12.01
  • Accepted : 2016.12.15
  • Published : 2017.01.01
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Abstract

A motor model and off-line diagnosis method of the induction motor having an interturn fault(ITF) is studied. The proposed method is based on the magnitude comparison of the six impedance in the d-q plane. To prove the impedance unbalance, the induction motor model is presented with an ITF circuit loop with a fault resistance. Then, six impedance components in the stationary d-q plane are defined depending on the connected phase windings. Finding the maximum and minimum magnitude of the six impedance, the ITF and the faulty phase can be founded. To verify the proposed method, the experimental results with an induction motor having an ITF are shown.

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References

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