全閉スロット誘導電動機における二次側回路定数算定とトルク特性計算

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: 2013/06/01

タイトル(英語): Secondary Circuit Parameter Calculation for Induction Motor with Closed Rotor Slots and Torque Characteristic Calculation

著者名: 松下　真琴（（株）東芝 電力・社会システム技術開発センター），水野　末良（（株）東芝 電力・社会システム技術開発センター），石橋　文徳（芝浦工業大学教育支援センター），野田　伸一（（株）東芝 電力・社会システム技術開発センター）

著者名(英語): Makoto Matsushita (Fuchu Complex, Toshiba Corporation), Sueyoshi Mizuno (Fuchu Complex, Toshiba Corporation), Fuminori Ishibashi (Center for Educational Assistance, Shibaura Institute of Technology), Shinichi Noda (Fuchu Complex, Toshiba Corporation)

キーワード: 誘導電動機，全閉スロット，有限要素法，漏れインダクタンス，磁気エネルギー，磁気随伴エネルギー　　induction motor，closed rotor slot，finite element method，leakage inductance，magnetic energy，magnetic co-energy

要約(英語): Closed rotor slots are widely employed in low-power squirrel-cage induction motors with die-cast aluminum cage rotors. Die-cast aluminum cages with closed rotor slots can be manufactured commercially. They help reduce flux pulsation in air gaps and attenuate acoustic noises and surface loss. However, it is difficult to calculate the characteristic of a squirrel cage induction motor with closed rotor slots accurately because the secondary leakage inductance changes greatly with the slip.In this study, the secondary circuit parameter (secondary leakage inductance and secondary resistance) and torque characteristic as a function of the slip were investigated by FEM analysis. The secondary leakage inductance was calculated using magnetic energy and/or magnetic co-energy of a rotor bar, end-ring, and bridge. The secondary resistance was calculated using Joule loss of the rotor bar and end-ring. Moreover, the torque characteristic was calculated using a Steinmetz motor equivalent circuit with the secondary circuit parameter. The results were compared with the experimental value by using a 4P-0.75kW motor with closed rotor slots. From these analyses, it is seen that the measured values of the secondary circuit parameter and torque characteristic are in good agreement with the values calculated by FEM. It is confirmed that the torque characteristic that is calculated using the Steinmetz motor equivalent circuit with the secondary circuit parameter based on the proposed method is more accurate than the conventional characteristic calculation result because the variation of the secondary circuit parameter is taken into account.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.6 （2013）

本誌掲載ページ: 645-651 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/133/6/133_645/_article/-char/ja/