Pole-shape optimization of permanent-magnet linear synchronous motor for reduction of thrust ripple

In this paper, we have used magnet arc shaping technique in order to improve the performance of permanent-magnet linear synchronous motor (PMLSM). At first, a detailed analytical modeling based on Maxwell equations is presented for the analysis and design of PMLSM with the arc-shaped magnetic poles...

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Bibliographic Details
Published in:Energy conversion and management 2011, Vol.52 (1), p.349-354
Main Authors: Tavana, Nariman Roshandel, Shoulaie, Abbas
Format: Article
Language:English
Subjects:
Applied sciences
Arc-shaped magnetic pole
Design engineering
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Finite element method
Mathematical analysis
Mathematical models
Miscellaneous
Optimization
Permanent-magnet linear synchronous motor
Ripples
Synchronous motors
Thrust
Thrust ripple
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Summary:In this paper, we have used magnet arc shaping technique in order to improve the performance of permanent-magnet linear synchronous motor (PMLSM). At first, a detailed analytical modeling based on Maxwell equations is presented for the analysis and design of PMLSM with the arc-shaped magnetic poles (ASMPs). Then the accuracy of presented method is verified by finite-element method. Very close agreement between the analytical and finite-element results shows the effectiveness of the proposed method. Finally, a magnet shape design is carried out based on the analytical method to enhance the motor developed thrust. Pertinent evaluations on the optimal design performance demonstrate that shape optimization leads to a design with extra low thrust ripple.
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2010.07.007