Novel Axial Flux-Switching Permanent Magnet Machine for High-Speed Applications

• Main Authors: Fang, S. (Author), Jin, L. (Author), Liu, C. (Author), Xu, B. (Author), Xu, Z. (Author), Yu, H. (Author), Zhang, H. (Author)
• Format: Article
• Language: English
• Published: MDPI 2022
• Subjects: dual-stator; even harmonic; finite element analysis; flux-switching permanent magnet machine; static characteristics
• Online Access: View Fulltext in Publisher

 Conventional high-speed flux-switching machines have either a high fundamental frequency or more even harmonics. This paper proposes a novel six-slot four-pole axial flux-switching permanent magnet machine for high-speed applications. The machine, consisting of two radially distributed stators and one rotor, can effectively eliminate even harmonics in the flux linkage. First, the structural parameters that affect the performance of the motor are determined by the equivalent magnetic circuit method, and the optimal structural parameters of the motor are obtained by simulation optimization. Then, through finite element analysis, the three-dimensional model of the proposed machine is built, and the static electromagnetic characteristics are analyzed, including magnetic field distribution, flux linkage, back-electromotive force, cogging torque, and efficiency. The simulation results show that the total harmonic distortion of the flux linkage and back-electromotive force waveforms of the proposed novel machine is 2.2% and 9.8% respectively. The cogging torque of the optimal model is only 9 N. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.