集中巻永久磁石モータのギャップ変調とこれを考慮した分布巻優劣分岐点の導出

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: 2020/02/01

タイトル(英語): Gap Modulation of Concentrated-Winding Permanent Magnet Motor and Clarification of Theoretical Turning Point against Distributed Winding

著者名: 高橋　暁史（（株）日立製作所 研究開発グループ），初瀬　渉（（株）日立製作所 研究開発グループ）

著者名(英語): Akeshi Takahashi (Research & Development Group, Hitachi, Ltd.), Wataru Hatsuse (Research & Development Group, Hitachi, Ltd.)

キーワード: ギャップ変調，分布巻，集中巻，永久磁石モータ　　gap modulation，distributed winding，concentrated winding，permanent magnet motor

要約(英語): By focusing on the gap modulation of concentrated-winding permanent magnet (PM) motors, the superior/inferior branch point between concentrated and distributed windings was clarified. It was found through novel theoretical formulae considering the gap modulation effect that distributed-winding PM motors have about 10% larger q-axis inductance than concentrated-winding motors, which leads to a decrease in the high-speed operation range. Furthermore, the difference in reluctance-torque contribution between the two winding types was theoretically quantified. These findings enable motor designers to easily judge a superior winding type during the initial design stage. By applying the above-mentioned method to a 0.2kW concentrated-winding Nd-Fe-B magnet motor, it was possible to quantify the minimum core stack length of the distributed-winding motors to satisfy the required maximum load without relying on finite element analysis (FEA) and using only the introduced theoretical formulae. The validity of the proposed approach was demonstrated by the FEA and measurements of the designed distributed-winding PM motor.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.140 No.2 （2020）

本誌掲載ページ: 79-88 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/140/2/140_79/_article/-char/ja/