Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Detent Torque of Parking Magnet Starting Device Installed in the Single-Phase Switched Reluctance Motor

단상 스위치드 릴럭턴스 모터에 설치된 영구자석 기동장치의 디텐트 토크

  • Kim, Jun-Ho (EV Power Control Solution Team, LS Industrial Systems Co., Ltd) ;
  • Lee, Seung-Min (Electric, Electronics and Communication Engineering Education, Chungnam National University)
  • 김준호 ((주) LS산전 EV전력제어 Solution팀) ;
  • 이승민 (충남대학교 전기전자통신공학교육과)
  • Published : 2010.05.01
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Abstract

The single-phase switched reluctance motor(SRM) generates the positive torque in the restricted section. So, it can not started by itself and the torque ripple is heavier than poly-phase. For self-starting and fixing rotating direction, the rotor should be placed at the rising inductance slope when stationary. The parking permanent magnet locates the rotor in the fixed position, which can be started by it-self. It is very simple and cost effective but has some drawbacks. It affects the rotor during the operation, so the characteristics of motor, such as a torque, speed, and ripple are changed to go bad. This paper presents the detent torque of parking magnet starting device through the finite element analysis and experiments. The finite element analysis is performed at incremental rotor positions over one detent torque cycle for any one pole. The prototype, fabricated in the previous research, is used for the experiments. The inductance, instant torque, and detent torque are calculated using the terminal voltage and phase current. Finally, the finite element analysis result and the experiment result are compared for analysis and validity.

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References

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