Control Strategy for Reducing Ripple Current in DC-Link Capacitor of Single-Phase UPS

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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: 2023/03/01タイトル(英語): Control Strategy for Reducing Ripple Current in DC-Link Capacitor of Single-Phase UPS著者名: Takato Yamamoto (Nagaoka Unive rsity of Technology), Hitoshi Haga (Nagaoka University of Technology)著者名(英語): Takato Yamamoto (Nagaoka University of Technology), Hitoshi Haga (Nagaoka University of Technology)キーワード: UPS，electrolytic capacitor，ripple current要約(英語): This letter proposes a control strategy for reducing a ripple current in DC-link capacitor of single-phase uninterruptible power supplies (UPS). The proposed method aims to reduce the capacitor current by reducing the difference between the input and output instantaneous power. The input current waveform should satisfy harmonic current regulation and be as close as possible to the load current. Therefore, an auxiliary buck chopper was added to compensate to the ripple current in DC-link capacitor. Experimental result confirm that the proposed method reduces the RMS value of the DC-link ripple current by 27.9%.本誌: IEEJ Journal of Industry Applications Vol.12 No.2 （2023） Special Issue on “Motion Control and its Related Technologies”本誌掲載ページ: 228-229 p原稿種別: 研究開発レター／英語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/12/2/12_L22000994/_article/-char/ja/ Show more