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: 2023/05/01タイトル(英語): Development of a High Power Density In-Wheel Motor Using Halbach Array Magnets著者名: 伊藤 誠（（株）日立製作所），須藤 哲也（（株）日立製作所），高橋 暁史（（株）日立製作所），原 崇文（日立Astemo（株）），岩野 龍一郎（（株）日立製作所）著者名(英語): Makoto Ito (Hitachi, Ltd.), Tetsuya Suto (Hitachi, Ltd.), Akeshi Takahashi (Hitachi, Ltd.), Takafumi Hara (Hitachi Astemo, Ltd.), Ryuichiro Iwano (Hitachi, Ltd.)キーワード: インホイールモータ，Halbach配列磁石，永久磁石同期機，高出力密度 in-wheel motor，Halbach array magnets，PMSM，high power density要約(英語): In this study, a direct drive in-wheel system is proposed as a high power density system for reducing the intermediate parts, such as a speed reducer by increasing the torque. We propose a design strategy to show that multipolarization and the improvement of the gap magnetic flux density can effectively increase the power density. A Halbach array magnet rotor that combines the main electrode magnets and spoke magnets with the core is adopted as a technique for improving the gap magnetic flux density. We compare the Halbach array type rotor to the conventional SPM type rotor by using both of magnetic circuit calculation and FEM analysis. Moreover, the actual sized in-wheel motor prototype with the developed Halbach array magnet rotor is fabricated and measures the no-load induced back EMF. The measured no-load induced back EMF agrees well with the analyzed waveform.本誌: 電気学会論文誌D（産業応用部門誌） Vol.143 No.5 （2023） 特集：2022年産業応用部門大会本誌掲載ページ: 398-404 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/143/5/143_398/_article/-char/ja/
