電動工具用自己冷却SRMの提案と実機特性

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: 2020/11/01

タイトル(英語): Proposal and Machine Characteristics of a Self-Cooling SRM for Electric Hand Tools

著者名: 肥沼　孝一（芝浦工業大学M&Eエネルギー変換研究室），赤津　観（芝浦工業大学M&Eエネルギー変換研究室）

著者名(英語): Koichi Koinuma (M&E Energy Conversion Laboratory, Shibaura Institute of Technology), Kan Akatsu (M&E Energy Conversion Laboratory, Shibaura Institute of Technology)

キーワード: スイッチトリラクタンスモータ，自己冷却，電動工具　　switched reluctance motor，self-cooling，electric hand tools

要約(英語): Electric hand tools must be low cost and require minimal maintenance. To achieve these demands, a switched reluctance motor (SRM) is expected to be used as an electric hand tool motor as an alternative to a brushless DC Motor (BLDCM). The SRM is suitable for electric hand tools owing to its low manufacturing cost. However, the SRM has a disadvantage in that its torque density is lower than that of the BLDCM. Therefore, the SRM needs to add a higher current than the BLDCM to achieve the same output torque. Moreover, the winding temperature quickly increases owing to the large copper loss. To overcome this problem, this paper proposes a self-cooling SRM. The proposed SRM can realize the same output torque and the same volume as a BLDCM system including a fan. Additionally, the proposed SRM can slow the increase in winding temperature by increasing the motor volume and through the self-cooling effect. In this study, the performance of the prototype self-cooling SRM is verified through simulations and experiments.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.140 No.11 （2020）

本誌掲載ページ: 826-833 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/140/11/140_826/_article/-char/ja/