ネオジムボンド磁石の適用によるアキシャルギャップモータの高速重負荷領域の高効率化に関する検討

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2020/12/01

タイトル(英語): Examination of Enhancing Efficiency of Axial Gap Motor in High Speed and High Torque Region by Adopting Neodymium Bonded Magnet

著者名: 綱田　錬（北海道大学大学院情報科学研究科），竹本　真紹（岡山大学大学院自然科学研究科），小笠原　悟司（北海道大学大学院情報科学研究科），折川　幸司（北海道大学大学院情報科学研究科），齋藤　達哉（住友電気工業（株）），上野　友之（住友電気工業（株））

著者名(英語): Ren Tsunata (Graduate School of Information Science and Technology, Hokkaido University), Masatsugu Takemoto (Graduate School of Natural Science and Technology, Okayama University), Satoshi Ogasawara (Graduate School of Information Science and Technology, Hokkaido University), Koji Orikawa (Graduate School of Information Science and Technology, Hokkaido University), Tatsuya Saito (Sumitomo ElectricIndustries, Ltd.), Tomoyuki Ueno (Sumitomo ElectricIndustries, Ltd.)

キーワード: アキシャルギャップモータ，ネオジムボンド磁石，ネオジム焼結磁石，フェライト磁石，渦電流損失，圧粉鉄心　　Axial gap motor，Neodymium bonded PM，Neodymium sintered PM，Ferrite PM，Eddy current loss，Soft magnetic composite

要約(英語): In recent years, more than half of the electric power generated in the country is being consumed by motors. Therefore, high performance motors are desired especially for industrial applications. In addition, it is desirable to reduce motor size. Recently, motors called axial gap type have been proposed and researched to achieve both high torque and small size. Axial gap motors are generally suitable for applications requiring flat shape such as a disk. Conventional axial gap motors frequently employ Nd sintered permanent magnets (PMs) to achieve high torque. However, axial gap motors with Nd sintered PMs are not very efficient at high rotational speed due to the eddy current loss arising in the PM. Axial gap motors that use ferrite PMs have also been proposed, but torque density is low. In this paper, an axial gap motor using Nd bonded PMs is proposed to achieve high efficiency in the high-speed and high-torque region. The proposed axial gap motor using Nd bonded PM is compared with other axial gap motors employing Nd sintered PM and ferrite PM through 3D-FEA and experiments. Consequently, it was found that the Nd bonded PM is more effective in enhancing the efficiency of an axial gap motor in the high-speed and high-torque region, compared with Nd sintered PM and ferrite PM.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.140 No.12 （2020）

本誌掲載ページ: 939-948 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/140/12/140_939/_article/-char/ja/