Topology Optimization for Motor Slot with Heat Generation Rate Depending on Winding Occupancy

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2024/07/01

タイトル(英語): Topology Optimization for Motor Slot with Heat Generation Rate Depending on Winding Occupancy

著者名: Akihiro Katsuno (Graduate School of Science and Technology, Keio University), Toshiyuki Murakami (Department of System Design Engineering, Keio University)

著者名(英語): Akihiro Katsuno (Graduate School of Science and Technology, Keio University), Toshiyuki Murakami (Department of System Design Engineering, Keio University)

キーワード: homogeneous material，equivalent thermal conductivity，electrical winding，peak temperature，topology optimization

要約(英語): This study developed a two-dimensional heat path topology optimization method that minimizes the peak temperature inside motor slots. By representing the coil and varnish as a homogenized material, the problem was simplified to a two-phase topology optimization of the homogenized material and heat conductor. The motor performance was represented as a constraint on the magnetomotive force, which is related to the heating rate of the windings. Because the heating rate depends on the winding occupancy, we developed a new formulation for the sensitivity of the objective function. The heat path geometry was optimized without volume limitation under the trade-off relationship between the heat transfer efficiency and heat generation rate. The results indicated an 8.84% reduction in the peak temperature of a motor slot compared to that of a conventional simple aluminum plate.

本誌: IEEJ Journal of Industry Applications Vol.13 No.4 （2024） Special Issue on “JIASC 2023”

本誌掲載ページ: 453-462 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/13/4/13_24001384/_article/-char/ja/