Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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A Stator Fault Diagnosis of an Induction Motor based on the Phase Angle of Park's Vector Approach

Park's Vector Approach의 위상각 변이를 활용한 유도전동기 고정자 고장진단

  • Go, Young-Jin (Major in Electrical and Semiconductor Engineering, Chonnam National University) ;
  • Lee, Buhm (Major in Electrical and Semiconductor Engineering, Chonnam National University) ;
  • Song, Myung-Hyun (Dept. of Electric Control Engineering, Sunchon National University) ;
  • Kim, Kyoung-Min (Major in Electrical and Semiconductor Engineering, Chonnam National University)
  • 고영진 (전남대학교 공학대학 전기및반도체공학과) ;
  • 이범 (전남대학교 공학대학 전기및반도체공학과) ;
  • 송명헌 (순천대학교 전기제어공학과) ;
  • 김경민 (전남대학교 공학대학 전기및반도체공학과)
  • Received : 2013.12.06
  • Accepted : 2014.01.11
  • Published : 2014.04.01
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Abstract

In this paper, we propose a fault diagnosis method based on Park's Vector Approach using the Euler's theorem. If we interpreted it as Euler's theorem, it is possible to easily find the phase angle difference between the healthy condition and the fault condition. And, we analyzed the variation of the phase angle and performed the diagnostic method of the induction motor using feature vectors that were obtained by using a Fourier transform. The analysis of time and speed variation of the motor was performed and, as a result, we could find more soft variations than rough variations. In particular, the analysis of the distortion through each phase shows that two-turn and four-turn shorted motors are linearly separable. In this experiment, we know that the maximum breakdown threshold value for determining steady-state fault detection is 49.0788. Simulation and experimental results show the more detectable than conventional method.

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References

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