A New Spoke PM Motor with ECC ASPs to Reduce Flux Density Harmonics

Autor: Gaohong Xu, Tang Tang, Qian Chen, Zexin Jia
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Energies, Vol 15, Iss 17, p 6184 (2022)
Druh dokumentu: article
ISSN: 1996-1073
DOI: 10.3390/en15176184
Popis: This paper proposes new eccentric (ECC) auxiliary salient poles (ASPs) applied in spoke permanent-magnet (PM) motors. These ECC ASPs optimize flux density harmonics and further reduce torque pulsation. Then, the optimization procedure is proposed to reveal the relationship between the ECC method and ASP, and optimization steps are reduced. Firstly, the design of the ECC ASPs is based on the stairs, which are equivalent to sinusoidal flux density. Second, the expressions of offset length for maximum air gap, pole arc angle, and thickness ratio are revealed. Through theoretical analysis and the finite element method (FEM), the proposed ECC ASPs can generate low torque pulsation and improve sound and vibration features.
Databáze: Directory of Open Access Journals
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