量産対応可能なアモルファス積層コアを用いた小型EV駆動用モータ

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: 2024/07/01

タイトル(英語): Traction Drive Motor for Small EVs Using Mass Producible Amorphous Laminated Cores

著者名: 加納　善明（大同大学），金清　裕和（ネクストコアテクノロジーズ（株）），鈴木　洋平（（株）小松精機工作所）

著者名(英語): Yoshiaki Kano (Department of Electrical and Electronics Engineering, Daido University), Hirokazu Kanekiyo (Next Core Technologies Inc.), Yohei Suzuki (KOMATSUSEIKI KOSAKUSHO CO. LTD)

キーワード: 鉄基アモルファス金属，量産，埋込磁石同期モータ，低鉄損，モータ効率　　iron-based amorphous metal，mass-production，interior permanent magnet synchronous motor，low iron loss，motor efficiency

要約(英語): This study presents the development of a small electric vehicle (EV) traction drive motor using Fe-based amorphous laminated cores that can be mass produced. The following innovative technologies are developed to realize the amorphous laminated core: (1) production technology for thicker amorphous alloy foils to reduce the number of machining operations and (2) punching press technology for amorphous alloy foils that improves the usability of the tool life and maintains quality. The interior permanent magnet synchronous motor (IPMSM) using the amorphous laminated core is designed to be compatible with a 4.5-kW-class small EV traction drive with high efficiency while satisfying the required torque characteristics. A prototype of the designed IPMSM was manufactured and evaluated. The test machine achieves a maximum efficiency of 98.7% and a wide range of efficiencies exceeding 97%. Additionally, the prototype motor exhibit improved efficiency in all operating points compared with a prototype manufactured using an electrical steel sheet.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.144 No.7 （2024） 特集：eモビリティを支える技術

本誌掲載ページ: 538-547 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/144/7/144_538/_article/-char/ja/