There are many inherent advantages on multi-phase PMSM, its prospect is very optimistic. A novel six-phase disc permanent magnetic synchronous motor which adopts a one-rotor-two-stators configuration is presented. The principle and structure are depicted. FEM is used to analyze the no-load magnetic field characteristics of this motor, and this paper contrasts the effect of Permanent Magnet Thickness on the fundamental amplitude of the air gap flux density and sinusoidal distribution.
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