Reduction Method of Zero-Sequence Current in 6-Step Operation on One Side of Dual Inverter with a Common DC-Bus

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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: 2024/05/01タイトル(英語): Reduction Method of Zero-Sequence Current in 6-Step Operation on One Side of Dual Inverter with a Common DC-Bus著者名: Jun Ohata (Nagaoka University of Technology), Hitoshi Haga (Shizuoka University), Masaaki Konoto (YANMAR HOLDINGS CO., LTD.), Qingyun Piao (YANMAR HOLDINGS CO., LTD.)著者名(英語): Jun Ohata (Nagaoka University of Technology), Hitoshi Haga (Shizuoka University), Masaaki Konoto (YANMAR HOLDINGS CO., LTD.), Qingyun Piao (YANMAR HOLDINGS CO., LTD.)キーワード: open-end winding PMSM，dual inverter，zero-sequence current要約(英語): The paper proposes a method for reducing the zero-sequence current in a dual inverter with a common DC-bus. Motor drive systems are required to have higher efficiency, higher power, and smaller size in the electrification of industrial machinery. Hence, 6-step operation on one side of a dual inverter with a common DC-bus is effective. However, increasing the zero-sequence current is problem. Therefore, the proposed method effectively reduces the zero-sequence current in a 6-step operation on one side. The effectiveness of the proposed method is demonstrated by experimental results using an open-end winding PMSM and dual inverter with a common DC-bus. The proposed method reduces the peak-to-peak values of the zero-sequence current by 91.9% and improves the THD of the phase current by 68.7pt. compared to the conventional method. The reduction effect of the proposed method is also shown to be effective at higher motor speed. Therefore, the proposed control method achieves effective reduction of zero-sequence current in high-efficiency operation with the 6-step operation on one side.本誌: IEEJ Journal of Industry Applications Vol.13 No.3 （2024）本誌掲載ページ: 280-289 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/13/3/13_23007972/_article/-char/ja/ Show more