期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 46, 期 4, 页码 1000-1006出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2009.2037951
关键词
Arc-shaped magnetic pole; finite-element method; linear synchronous motor; permanent-magnet machine
资金
- Power Electronics and Electromagnetic Devices Laboratory at Iran University of Science and Technology, Tehran, Iran
In this paper, in order to achieve the sinusoidal back electromotive force (EMF) waveform in a permanent-magnet machine, which is closely related to its magnet shape, we have used magnet arc shaping technique. An analytical analysis based on Maxwell equations is proposed for calculating magnetic field and thrust/torque. Then the accuracy of the presented method in modeling of machine is verified by the finite-element method. Finally, a magnet shape design is carried out based on the analytical method to produce sine air-gap magnetic field. The results show an enhancement in optimized motor performance.
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