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Modeling and Analysis of Linear Synchronous Motors in High-Speed Maglev Vehicles

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2 Author(s)
Hosseini, M.S. ; Adv. Motion Syst. Res. Lab., Univ. of Tehran, Tehran, Iran ; Vaez-Zadeh, S.

Accurate knowledge of magnetic field distribution and thrust and normal force calculation in linear synchronous motors are essential for assessing performances and design of the motors. In this paper, two-dimensional field distribution produced by dc excitation of secondary and ac currents of primary of a high-speed single-sided wound secondary linear synchronous motor is obtained by an analytical method solving Maxwell equations in the motor layers. Further, the determination of electromagnetic forces of this type of motor is presented. The results are compared with those obtained from an adopted base model and the finite-element method (FEM). Anisotropy, field harmonics and primary slot effects are investigated. Good correlations between the results obtained by the proposed method and the finite-element method confirm the superiority of the former method over the base method.

Published in:

Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 7 )