Abstract
This paper presents the study on a novel dual-stator 6/4 flux-switching permanent magnet (FSPM) machine for high-speed applications. Three different alternative topologies of dual-stator 6/4 FSPM machines are proposed and their performances regarding flux linkage, back electromotive force (back-EMF), torque density, and manufacturability are compared to the same specification of 10 kW and 15,000 rpm condition. Design considerations for each of the proposed topology are elaborated. The proposed dual-stator 6/4 FSPM machine is compared with the conventional 12/10 FSPM machine designed at the same power and speed rating. Results show that the proposed low-pole dual-stator 6/4 FSPM machine achieves a significant reduction of high-frequency losses including iron loss and magnet eddy current loss than the high-pole 12/10 FSPM machine. Thus the dual-stator 6/4 FSPM machine is more amenable for high-speed operation than the 12/10 FSPM machine because of less fundamental frequency required, less total loss, and more energy savings.
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