期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 51, 期 5, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2014.2364156
关键词
Analytical modeling; multislice; slot skewing; subdomain technique; surface mounted permanent magnet (SMPM) machine
资金
- National Key Basic Research Program of China (973 Program) [2013CB035602]
- National Natural Science Foundation of China [51037004]
- Application Foundation
- Front Technology Research Program of Tianjin [13JCZDJC34700]
In this paper, an analytical model is developed for surface mounted permanent magnet (SMPM) machines with skewed slots via the subdomain technique and the multislice method. It takes the nonuniform distribution of flux density along the axial direction caused by slot skewing into account and can be used to obtain air-gap flux density distribution in the 3-D space. The cogging torque, flux linkage, back electromotive force (EMF), and output torque are calculated with the obtained air-gap flux density. The results calculated by the analytical model are validated by the 3-D finite element analysis. The convergence and computation time of the analytical model are investigated, and good convergence and fast calculation speed can be achieved. Based on the developed analytical model, the effects of slot skewing angle and pole arc on back EMF and output torque are researched. The analytical model can be applied to the fast optimal design and performance analysis of SMPM machines with skewed slots.
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