Investigation of the over-load unintentional remagnetization effect in series hybrid magnet variable flux memory machine
Source abstract
Abstract
Variable flux memory machines (VFMMs) have become a research hotspot due to their adjustable air-gap flux with the employment of low coercive force (LCF) permanent magnets (PMs). Series hybrid magnet VFMMs (SHM-VFMMs) utilizing series-magnetic-circuit high coercive force (HCF) and LCF PMs are extensively investigated due to their excellent unintentional demagnetization (UD) withstand capability. Nevertheless, the existing researches still focus on the UD of LCF PMs under heavy load operation, and the remagnetization issue remains unreported. Therefore, in this paper, the over-load unintentional remagnetization (UR) effect of the a dual-layer-SHM-VFMM (DLSHM-VFMM) is first revealed, and its mechanism is investigated and analyzed in depth based on finite element (FE) analyses. A DLSHM-VFMM prototype is manufactured and tested to verify the effectiveness of the theoretical analyses.
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Research context
OpenAlex topics: Electric Motor Design and Analysis · Magnetic Bearings and Levitation Dynamics · Magnetic Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Electrical Engineering, Southeast University 1 , Sipailou 2, 210096 Nanjing, China
Huawei Technologies Company Ltd. 2 , 310000 Shanghai, China
Funding
National Natural Science Foundation of China · Key R&D Program of Jiangsu Province · “Thousand Talents Plan” Project of Jiangxi Province · Fundamental Research Funds for the Central Universities · “SEU Zhishan Scholars” Program of Southeast University · GF Key Laboratory of Science and Technology Foundation Project · National Key Laboratory of Electromagnetic Energy
References (15)
Show source-provided references
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