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The objective of this paper is to investigate the design and optimization of a novel dual-rotor hybrid permanent magnet machine for traction application. The proposed dual-rotor hybrid synchronous PM machine synthesizes the synchronous reluctance and surface permanent magnet rotors into a single machine with the common shaft by using “inner-out” configuration. One feature of this hybrid machine is...
This paper proposes a rotor tooth shaping method to reduce the cogging torque of an axial flux-switching permanent magnet machine. The rotor tooth is shaped in different configurations, including constant, trapezoidal, asymmetrical, extended, and square shapes. 3-D finite element analysis is performed to compare the proposed shapes of rotor tooth. Peak-to-peak cogging torque, fundamental flux linkage,...
The purpose of this paper is to characterize the performance of a novel dual-stator six slot four pole (6/4) flux switching permanent magnet machine. The proposed dual-stator 6/4 topology eliminates even order harmonics in the flux linkage and back electromotive force, which are present in the conventional single stator topology. The resulting back electromotive forces of the proposed dual-stator...
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