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

The Korean Institute of Electrical Engineers (대한전기학회)
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Variable Slip Frequency Control of LIM for Magnetically Levitated Train

자기부상열차 추진용 LIM의 운전 효율 향상을 위한 가변 슬립주파수 제어

  • Received : 2017.12.01
  • Accepted : 2017.12.22
  • Published : 2018.01.01
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Abstract

Constant slip frequency control has been conventionally used in thrust control of the linear induction motor(LIM) for magnetically levitated train. However in this paper variable slip frequency control method is presented to increase LIM efficiency according to change of driving notch. Thrust, attractive force, input power to inverter, regenerative power of the LIM are analyzed by finite element method when the train runs according to the presented control method. As a result it is proved experimentally that the electrical energy to inverter is reduced than the conventional method.

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References

  1. KIEE Editorial Board, "Urban Maglev", KIEE confernece, pp. 11-46, 2014. 7
  2. Kinichi Nagata, Masaski Takahashi, "Linear Motor Drive System for the Normal Conductivity Maglev Vehicle HSST-05", IEEJ, vol. 110-D, no. 1, pp.23-31, 1990
  3. Ichiro Miyashita, Youichi Ohmori,"New Modulation Method for VVVF Inverter for HSST-05", International conference Maglev'89, pp. 185-190, July, 1989.
  4. Seung-Chan Park, "Characteristic Analysis of the Adaptive Slip Frequency Controlled LIM for Urban Magnetic Levitation Train", KIEE conference, pp. 1659-1660, 2014. 7.