ID | 66014 |
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Author |
Tsunata, Ren
Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
Takemoto, Masatsugu
Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
ORCID
Kaken ID
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Imai, Jun
Graduate School of Environmental, Life, Natural Science and Technology, Okayama University
Kaken ID
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Saito, Tatsuya
Sumitomo Electric Industries Ltd.
Ueno, Tomoyuki
Sumitomo Electric Industries Ltd.
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Abstract | This study aims to improve the torque performance and manufacturability of axial-flux permanent magnet (AFPM) machines. Hence, we propose a novel AFPM machine that employs a soft magnetic composite (SMC) core with tooth-tips constructed by a one-pressing process and die. In this paper, the proposed AFPM machine is compared to two conventional AFPM machines using an SMC core. One of them has open-slot structure without tooth-tips. Another model employs an SMC core with tooth-tips pressed by a conventional pressing process that requires multiple operations and dies. As a result of the comparison, the proposed AFPM machine realizes a much higher torque than the two conventional machines. Additionally, the manufacturability of an SMC core with tooth-tips pressed by the proposed method is superior to the conventional one because the proposed structure can be realized by the one-pressing process and die. Furthermore, two prototypes of the proposed AFPM machine and the conventional one with an open-slot structure are fabricated, and then, they are compared by experiments. Consequently, the proposed AFPM machine achieves a 15.7% higher torque than that of the conventional machine using an open-slot structure. Finally, this paper presents an improved design of an AFPM machine with SMC cores using the proposed pressing process. As a result, the proposed AFPM realizes a 20% larger torque than that of a conventional model employing an open-slot structure.
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Keywords | Pressing
Stator cores
Magnetic cores
Torque
Atmospheric modeling
Presses
Manufacturing
Mass production
Axial-flux permanent magnet machine
soft magnetic composite (SMC)
PMSM
tooth-tips
torque
press process
semi-closed slot structure
axial gap motor
mass production
YASA motor
shoe
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Published Date | 2023-10-04
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Publication Title |
IEEE Access
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Volume | volume11
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Publisher | Institute of Electrical and Electronics Engineers
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Start Page | 109435
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End Page | 109447
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ISSN | 2169-3536
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © 2023 The Authors.
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File Version | publisher
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DOI | |
Web of Science KeyUT | |
Related Url | isVersionOf https://doi.org/10.1109/ACCESS.2023.3321829
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License | https://creativecommons.org/licenses/by/4.0/
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Citation | R. Tsunata, M. Takemoto, J. Imai, T. Saito and T. Ueno, "A Proposal of an Axial-Flux Permanent-Magnet Machine Employing SMC Core With Tooth-Tips Constructed by One-Pressing Process: Improving Torque and Manufacturability," in IEEE Access, vol. 11, pp. 109435-109447, 2023, doi: 10.1109/ACCESS.2023.3321829.
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