ベアリングレスモータのギャップ磁束密度に基づく半径方向磁気支持力発生原理の理論

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: 2022/07/01

タイトル(英語): Verifying the Calculation Approach for Radial Suspension Force based on the Airgap Flux Density for SPM, Consequent-Pole, and Bearingless AC Homopolar Motors

著者名: 野口　孝浩（東京工業大学），杉元　紘也（東京電機大学），藤井　勇介（東京工業大学），千葉　明（東京工業大学）

著者名(英語): Takahiro Noguchi (Tokyo Institute of Technology), Hiroya Sugimoto (Tokyo Denki University), Yusuke Fujii (Tokyo Institute of Technology), Akira Chiba (Tokyo Institute of Technology)

キーワード: ベアリングレスモータ，表面貼付永久磁石形，コンシクエントポール，ホモポーラモータ　　bearingless motor，surface-mounted permanent magnet，consequent-pole permanent magnet，AC homopolar motor

要約(英語): In this paper, a calculation method is proposed for the radial suspension force of a bearingless motor with a surface-mounted permanent magnet (SPM) rotor, a consequent-pole permanent magnet (CPM) rotor, and a homopolar permanent rotor (HPM). The radial suspension forces are calculated mathematically and analytically using the airgap flux density. It was confirmed that the proposed radial force equations are practical to calculate the suspension force based on the airgap flux density. The CPM bearingless motor and bearingless AC HPM have salient pole rotors that interact with the 2-pole Magnetomotive force (MMF) to generate 6- and 10-pole components. As a result, the radial suspension force of the CPM bearingless motor is generated by 8- and 6-pole, and 8- and 10-pole magnetic flux, whereas the bearingless AC HPM produces the radial suspension force by DC and 2-pole components. The shaft torque, the suspension force, and efficiency were also compared for SPM, CPM bearingless motors, and bearingless AC HPM. Consequently, the torque value of the CPM bearingless motor is quite close to SPM bearingless motor. Moreover, the suspension force of the CPM bearingless motor is quite close to bearingless AC HPM.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.142 No.7 （2022）

本誌掲載ページ: 506-515 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/142/7/142_506/_article/-char/ja/