高電圧直流給電システムに用いる絶縁形フルブリッジDC-DCコンバータのサージ解析および対策

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: 2013/12/02

タイトル(英語): Surge Analysis and Snubber Design for a Full-Bridge Isolated DC-DC Converter in HVDC Power Distribution Systems

著者名: 土本　和秀（長崎大学大学院工学研究科），石塚　洋一（長崎大学大学院工学研究科），二宮　保（国際東アジア研究センター），安部　征哉（国際東アジア研究センター），シマンジョラン　レジェキ（産業技術総合研究所），山口　浩（産業技術総合研究所），加賀　雅人（(株) NTT ファシリティーズ 研究開発本部）

著者名(英語): Kazuhide Domoto (Graduate School of Engineering, Nagasaki University), Yoichi Ishizuka (Graduate School of Engineering, Nagasaki University), Tamotsu Ninomiya (International Center for the East-Asian Development), Seiya Abe (International Center for the East-Asian Development), Rejeki Simanjorang (National Institute of Advanced Industrial Science and Technology), Hiroshi Yamaguchi (National Institute of Advanced Industrial Science and Technology), Masato Kaga (R&D Headquarters, NTT Facilities Inc)

キーワード: 高電圧直流給電システム，絶縁形DC-DCコンバータ，サージ解析，高周波等価回路，サージスナバ　　HVDC power distribution system，isolated dc-dc converter，surge analysis，high-frequency equivalent circuit，surge snubber

要約(英語): In an isolated DC-DC converter utilized in a high-voltage DC power distribution system for data centers, a large surge voltage occurs across the secondary-side diodes owing to the transformer's leakage inductance, necessitating diodes with a large withstand voltage. However, these diodes cause large power losses owing to relatively large ON-resistances. First, this study analyzes surge occurrences using a high-frequency equivalent circuit. Second, the surge-suppression capability of a simple snubber capacitor is examined, and the surge-voltage evaluation through analysis using high-frequency equivalent circuits is described. This is followed by experimental confirmation with SiC diodes. Finally, the minimum capacitance of the surge-snubber capacitor is determined for miniaturization.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.12 （2013）

本誌掲載ページ: 1171-1178 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/133/12/133_1171/_article/-char/ja/