Browse by author
Lookup NU author(s): Rajesh Kumar, Dr Dae Yong Um, Dr Glynn Atkinson
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
This research presents a comparative analysis of single-sided surface-mounted axial flux permanent magnet (SMAFPM) and consequent-pole axial flux permanent magnet (CPAFPM) machines by evaluating various key electromagnetic parameters. A straightforward replacement of permanent magnets (PMs) with soft magnetic composites (SMCs) is proposed for a conversion of surface-mounted (SM) topology to consequent pole (CP) topology, which maximizes manufacturing ease while sharing the same components. Detailed three-dimensional (3D) finite element analysis (FEA) is performed to assess parameters such as back-EMF, flux-linkage, inductance, torque, and losses. The investigation highlights that despite utilizing 50% less rare-earth permanent magnet (PM) material, the CPAFPM machine produces only 30% less rated torque compared to the SMAFPM machine. However, the CPAFPM machine suffers from reduced magnetic loading and higher armature reaction, leading to 36% lower torque density and reduced efficiency at low speeds and heavy loads. Prototypes of both machines were fabricated, and experimental validation showed a good correlation with the simulation studies. The findings provide insight into the simple conversion to the CPAFPM machine as a viable option for high-speed drives requiring fewer rare-earth PM materials.
Author(s): Kumar R, Um DY, Sjoberg L, Batra T, Atkinson G
Publication type: Article
Publication status: Published
Journal: IEEE Access
Year: 2024
Volume: 12
Pages: 188926-188939
Online publication date: 03/12/2024
Acceptance date: 29/11/2024
Date deposited: 06/01/2025
ISSN (electronic): 2169-3536
Publisher: IEEE
URL: https://doi.org/10.1109/ACCESS.2024.3510424
DOI: 10.1109/ACCESS.2024.3510424
Altmetrics provided by Altmetric
