조명전기설비학회논문지 (Journal of the Korean Institute of Illuminating and Electrical Installation Engineers)

한국조명전기설비학회 (The Korean Institute of IIIuminating and Electrical Installation Engineers)
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영구자석형 선형동기전동기의 단부효과에 의한 문제점 연구

A Study on the Problem of Permanent Magnet Linear Synchronous Motor According to End Effect

  • 김덕현 (건동대학교 신재생에너지공학과)
  • 투고 : 2009.10.27
  • 심사 : 2010.10.19
  • 발행 : 2010.12.31
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초록

A discontinuity of magnetic circuits according to the end effect is generated in PMLSM. And magnetic state of the 3 phase coils becomes unbalanced. Due to the unbalanced magnetic state, the unbalanced flux linkage, back electro-magnetic force and inductance of the 3 phase coils appear. In result, the circulating current is generated by unbalanced inductance even if the input voltages are in balanced state. Then the thrust and efficiency are decreased because of the circulating current. Therefore, in this paper, the unbalanced inductance and the thrust reduction according to discontinuity of magnetic circuits are analyzed by FEA(2D). To demonstrate the validity of the analysis results, the experiment results are compared with analysis results.

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참고문헌

  1. Ki-Chae Lim, Joon-Keun Woo, Gyu-Tak Kim, Jung-Pto Hong, Gyu-Tak Kim, “Detent Force Minimization Techniques in Permanent Magnet Linear Synchronous Motor”, IEEE Trans. on Magnetics, Vol 38, No. 2, pp. 1157-1160, 2002. https://doi.org/10.1109/20.996296
  2. Lee Dong-yeup, Kim Gyu-Tak, Choi Jung-Keying, “The design for high power density in the slotless type permanent magnet linear synchronous motor”, INTERMAG 2, 4-8 April 2005, pp. 653-654. https://doi.org/10.1109/INTMAG.2005.1463755
  3. Martinez G., Atencia J., Martinez-Iturralde M., “Garcia Rico A., Florez J. : Reduction of detent force in flat PMLSMs by means of three different methods”, Proceedings of Electric Machines and Drives Conference, 2003, Vol. 2, 1-4, June 2003, pp. 1105-1110.
  4. S. A. NASAR, I. BOLDEA, “LINEAR MOTION ELECTRIC MACHINES”, John Wiley & Sons, pp 63-78.
  5. Kim Duk-Hyun, “A Study on the Design and Characteristic Analysis of Moving Coil Type LOA taking accounting of Magnetic Circuit Configuration”, 2001. Ph. D degree paper, pp. 19-29.