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In this paper a set PM machine designs with the same level output characteristics were studied. This study covers the influence of the various types of windings arrangements, varying the number of slots, and pole width as design parameters on the cogging torque, back EMF, flux linkages, total torque, and speed of PM motor. These parameters were 2D finite element solution. A phase variable model for...
An analytical method is presented for calculation of no-load magnetic field distribution in the slot-less and slotted air gap of a spoke-type permanent magnet (PM) motor. The slot-less air-gap field and the relative air-gap permeance considering the effects of the slots are derived from the conformal transformation. The analytical field solutions are used to predict the cogging torque of an 8-pole,...
This paper presents the result of the two-dimensional finite element analysis on the effects of rotor pole arc variation and number of teeth per rotor pole with different teeth depths and stator excitation pattern on various performance parameters like cogging torque, developed torque, harmonic torques, torque ripple and phase inductance for an 6/8, three phase flux reversal motor. A novel excitation...
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