Control Method of Electrolytic Capacitor-less Dual Inverter Fed IPMSM for Reducing Torque Ripple under Grid Disturbance

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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: 2022/07/01タイトル(英語): Control Method of Electrolytic Capacitor-less Dual Inverter Fed IPMSM for Reducing Torque Ripple under Grid Disturbance著 者名: Yuuki Ohno (Nagaoka University of Technology), Hitoshi Haga (Nagaoka University of Technology)著者名(英語): Yuuki Ohno (Nagaoka University of Technology), Hitoshi Haga (Nagaoka University of Technology)キーワード: dual inverter，electrolytic capacitor-less inverter，grid disturbance，open-end winding IPMSM，torque ripple要約(英語): This paper proposes a control method for torque ripple using an open-end winding IPMSM driven by an electrolytic capacitor-less dual inverter under grid disturbances. Under grid disturbances, a conventional motor speed range extension method causes torque ripple due to voltage saturation of the main inverter. The proposed control method achieves both an extension of the motor speed range and a reduction of torque ripple under grid disturbances. The proposed method cancels the harmonic voltage generated due to grid disturbances by the output voltage of the compensating inverter. The effectiveness of the proposed method is verified by experimental results using an electrolytic capacitor-less dual inverter and an open-end winding IPMSM under the input voltage distorted by the seventh harmonic voltage. Compared with the conventional method, the proposed method reduces the harmonic currents and the torque ripple by up to 85.6 and 91.0%, respectively, under the distorted input voltage (seventh harmonic, THD 25%). Therefore, the motor drive system using the proposed method can effectively extend the motor speed range, and reducing the torque ripple under grid disturbances.本誌: IEEJ Journal of Industry Applications Vol.11 No.4 （2022）本誌掲載ページ: 623-633 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/11/4/11_21014244/_article/-char/ja/ Show more