Investigation of the Torque Production Mechanism of Dual-Stator Axial-Field Flux-Switching Permanent Magnet Motors

Shuai Wang, Mingyao Lin, Keman Lin and Yong Kong
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Shuai Wang: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Mingyao Lin: School of Electrical Engineering, Southeast University, Nanjing 210096, China
Keman Lin: College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
Yong Kong: School of Electrical Engineering, Southeast University, Nanjing 210096, China

Energies, 2021, vol. 14, issue 17, 1-17

Abstract: This paper studies the torque production mechanism of the dual-stator axial-field flux-switching permanent magnet (DSAFFSPM) machine. Due to the double-sided slotting design of such topology, more resultant air-gap working harmonics in the air-gap flux density are responsible for the torque production and the stator air-gap permeance is especially considered in the investigation. Based on the magnetic force (MMF)-permeance model, the composition and difference of the air-gap working harmonics are demonstrated. The DSAFFSPM machine torque contributions of the main working harmonics are analyzed theoretically and quantified by finite element analysis (FEA). The influence laws of the parameters on the working harmonics are shown and this effectively improves the motor operation performance. Finally, some experiments on the DSAFFSPM machine are carried out to validate the analytical and FEA results.

Keywords: dual stator axial-field flux-switching permanent magnet (DSAFFSPM) machine; torque production mechanism; double-side slotting; magnetic force (MMF)-permeance model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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