Huang, Y. orcid.org/0000-0002-0190-4234, Yang, H. orcid.org/0000-0002-2867-5574, Zheng, H. et al. (2 more authors) (2023) Analysis of flux barrier effect of LCF PM in series hybrid magnet variable flux memory machine. AIP Advances, 13 (2). 025230. ISSN 2158-3226
Abstract
Variable flux memory machines (VFMMs) with series hybrid magnets using both low coercive force (LCF) and high coercive force (HCF) permanent magnets (PMs) have been recognized as a viable candidate for wide-speed-range industrial applications due to the advantages of high torque density and wide speed range. Nevertheless, the adverse effects of LCF PM on the HCF PM in series-type VFMM under different magnetization states (MSs) are still unreported. In this paper, the flux barrier effect (FBE) of the LCF PM existing in series hybrid magnet VFMM is first revealed, and its causes are discussed as well as analyzed in depth on the basis of the equivalent magnetic circuit method and finite-element (FE) analyses. A topology of VFMM with dual-layer PMs is further developed to alleviate the FBE induced from LCF PMs. It can be found that the FBE can be effectively suppressed by employing the dual-layer (DL) PM arrangement and additional leakage flux paths. A prototype of the proposed design is built, and the theoretical and FE results are experimentally verified.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CCBY) license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Ferromagnetism; Magnetic materials; Magnetic energy; Electromagnetism; Electric motors |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Jan 2024 16:03 |
Last Modified: | 19 Jan 2024 16:03 |
Status: | Published |
Publisher: | AIP Publishing |
Refereed: | Yes |
Identification Number: | 10.1063/9.0000611 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:207600 |