KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Variable Slip Frequency Control of LIM for Magnetically Levitated Train
Authors	박승찬(Seung-Chan Park)
DOI	http://doi.org/10.5370/KIEE.2018.67.1.46
Page	pp.46-51
ISSN	1975-8359
Keywords	Linear Induction Motor(LIM) ; Slip Frequency ; Efficiency ; Thrust Control ; Finite Element Method(FEM)
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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