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A novel modular-spoke-type permanent magnet (MSTPM) machine is proposed in this paper. Firstly, the geometric topology and operating principle of MSTPM machine are briefly introduced. Then, the permanent-magnet magneto-motive-force (PM-MMF) and no-load radial air-gap flux density in a pair of MSTPM machine and conventional surface-mounted permanent magnet (SPM) machine are compared. Further, the even-order...
The flux-switching permanent-magnet (FSPM) machine is a relatively novel brushless machine having magnets and concentrated windings in the stator instead of rotor, which exhibits inherently sinusoidal back-EMF waveform and high torque capability. However, due to the high airgap flux density produced by magnets and the salient poles in both stator and rotor, the resultant torque ripple is relatively...
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