W. Qin, Mao Yuhua, Zhao Jiding, Wang Fuyao, Song Chengrui, Zhang Jielong
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A New Traveling Magnetic Electromagnetic Halbach Array for PMSLM
In this paper, an coreless permanent-magnet synchronous linear motor (PMSLM) with novel coil topology named traveling magnetic electromagnetic Halbach array (TMEHA) is proposed. Firstly, the topological structure and principle of the TMEHA-PMSLM is introduced. Then, the analytic model, based on harmonic analytical theory, was proposed to analysis the effectiveness of the TMEHA. Thirdly, the electromagnetic impact of structural design changes on the coils arrangement is considered with respect to thrust density and ripple. Finally, the accuracy of the analytic model is confirmed by comparing it with 2-D finite-element model (FEA) and with experimental results. A satisfactory coils arrangement structure model is obtained, which is intended to be utilized for coreless PMSLM.
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