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A two-scale model modified by improved geometrical optics (GO) is proposed. The improved geometrical optics considers the short waves diffraction and obtains the same accuracy as zero order Kirchhoff. Simulation shows that the modified two-scale model obtains satisfied accuracy as well as retains the simple representation in the frequency band which classical two scale model can not be applied. The...
Recently, multi-phase flux-switching (FS) permanent-magnet (PM) (FSPM) machines have received considerable attention in high performance and critical drive applications because of their remarkable advantages including high power density and high efficiency, especially the inherent fault-tolerant capacity [1]-[3]. On the other hand, in terms of fault tolerant strategies, most of the researches are...
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