ID | 63730 |
フルテキストURL | |
著者 |
Tsunata, Ren
Division of Industrial Innovation Sciences Graduate School of Natural Science and Technology, Okayama University
Takemoto, Masatsugu
Division of Industrial Innovation Sciences Graduate School of Natural Science and Technology, Okayama University
Ogasawara, Satoshi
Graduate School of Information Science and Technology, Hokkaido University
Saito, Tatsuya
Sumitomo Electric Industries Ltd.
Ueno, Tomoyuki
Sumitomo Electric Industries Ltd.
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抄録 | In recent years, there has been growing demand for flat electrical machines in order to minimize system size while also maintaining high efficiency. In general, axial flux machines (AFMs) are more suitable for flat form than radial flux machines (RFMs). AFMs usually employ a soft magnetic composite (SMC) for the stator core, and their efficiency can be improved by employing an SMC that has low iron loss. However, this reduces the average torque because there is generally a tradeoff relationship between iron loss and magnetic permeability in SMCs. This article, therefore, proposes an AFM with a coreless rotor structure in which the torque performance is not easily affected by the permeability of the SMC. This article aims to reveal the ideal SMC characteristics for high efficiency in AFMs. First, many virtual SMC materials with different iron loss and permeability are used for simulations of AFMs in order to investigate sensitivity to material properties. The simulations by virtual SMCs take into account the experimental increase in the iron loss. As a result, guidelines for developing SMCs are constructed based on the experimental results. Finally, prototype AFMs employing new SMCs developed by following the guidelines are shown, and it is found that they offer higher efficiency in all operating area than conventional AFMs. In particular, one prototype achieves an extremely high efficiency of over 96% at 6000 r/min, 0.8 Nm in experiments.
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発行日 | 2022-5
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出版物タイトル |
IEEE Transactions on Industry Applications
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巻 | 58巻
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号 | 3号
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出版者 | Institute of Electrical and Electronics Engineers (IEEE)
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開始ページ | 3470
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終了ページ | 3485
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ISSN | 0093-9994
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NCID | AA00667900
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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著作権者 | Copyright © 2022, IEEE
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論文のバージョン | author
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DOI | |
Web of Science KeyUT | |
関連URL | isVersionOf https://doi.org/10.1109/tia.2022.3154336
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助成機関名 |
Japan Society for the Promotion of Science
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助成番号 | 20J10951
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