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Dynamic Characteristics of a Linear Induction Motor for Predicting Operating Performance of Magnetic Levitation Vehicles Based on Electromagnetic Field Theory

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6 Author(s)
Seok-Myeong Jang ; Chungnam Nat. Univ., Daejeon, South Korea ; Yu-Seop Park ; So-Young Sung ; Kyoung-Bok Lee
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This paper deals with the dynamic characteristics of a linear induction motor (LIM) in terms of acceleration times and jerk conditions. We employed Matlab Simulink for conducting simulations of the dynamic modeling of LIM operated by a space vector pulse width modulation inverter. From the simulation results, the maximum load conditions and minimum acceleration times to guarantee passengers' safety were determined. Further, the electromagnetic field theory was employed to derive equivalent circuit parameters, and the results were validated by the finite element method. The analysis model was applied to a magnetic levitation vehicle for providing electromagnetic propulsion force, and its dynamic characteristics were analyzed to predict its operating performance; moreover, experimental results were employed to demonstrate the validity. We believe that the proposed prediction technique for the operating characteristics of LIMs can contribute to improving passengers' safety and riding quality.

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Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 10 )