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Linear flux-switching permanent magnet (LFSPM) motor attracts widely attention due to its high power density and high efficiency, in which both concentrated windings and PMs are on the short primary mover. Hence, it is very suitable for long stator applications such as urban rail transportations. However, a large numbers of existing LFSPM motors are obtained from simply splitting and unrolling the...
Flux-switching and doubly-salient brushless motors are both novel PM machines having magnets in the stator instead of rotor with outstandingly different static characteristics, especially on the PM flux-linkage waveform, namely, the unipolar and quasi-trapezoidal one for the doubly-salient PM motor, whereas bipolar and sinusoidal one for the flux-switching PM motor, which inevitably results in the...
A simple analytical method is developed for determining the optimal combination of stator pole and rotor pole numbers for a multi-tooth flux-switching permanent magnet (FSPM) machine, and the optimal design of the stator teeth for maximum torque. In addition, the rotor pole width and the split ratio are optimized by finite element analysis. The optimized multi-tooth FSPM machine exhibits a significantly...
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