Abstract
Axial flux permanent magnet (AFPM) machine is a prominent candidate with the characteristics and compactness of high torque density, higher efficiency, and high flux linkage due to the mitigation of torque ripples, which is generally preferred in an electric vehicle application. Different topologies of AFPM are investigated to improve the average torque and minimize the cogging torque and torque ripples. The main target of this paper is to improve the performance of the machine at the cost of low PM volume. This paper evaluates the dual rotor single stator AFPM machine in terms of the cogging torque, torque ripples, back EMF, flux linkage, and average torque. The machine’s performance with different PM shapes is analyzed, and arc shape PM exhibits excellent performance. Further, in an arc shape, AFPM machine with triangular arc shape PM shows better performance than conventional trapezoidal, hexa, and skew arc shape PM.
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