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

The Korean Institute of Electrical Engineers (대한전기학회)
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Fault Analysis of IPM type BLDC Motor Using Nonlinear Modeling of Stator Inter Turn Faults

고정자 절연파괴 비선형 모델링을 이용한 매입형 영구자석 전동기의 고장분석

  • 김경태 (울산대학교 대학원 전기공학부) ;
  • 허진 (울산대학교 전기전자정보시스템공학부)
  • Received : 2010.11.24
  • Accepted : 2011.02.20
  • Published : 2011.03.01
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Abstract

This paper proposes a finite element method (FEM)-based model of an interior permanent magnet (IPM) type BLDC motor having stator inter-turn faults. For more realistic simulation studies, the magnetic non-linearity is also considered in proposed model. And the simulation data are verified through experiment. By integrating the developed model with a current-controlled voltage source inverter (CCVSI) model, the characteristics of an inter-turn fault operated by six-switched inverter are investigated considering the speed control. And the circulating current, which is induced by magnetic linkage flux originated from PM, was analyzed from the view point of distortion of air-gap magnetic flux distribution caused deterioration of their torque.

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References

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