Capacitively Isolated Multicell Dc-Dc Transformer for Future Dc Distribution System

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: 2017/07/01

タイトル(英語): Capacitively Isolated Multicell Dc-Dc Transformer for Future Dc Distribution System

著者名: Yusuke Hayashi (Power Electronics Circuit and Systems Laboratory, Green Electronics Research Institute, Kitakyushu), Yoshikatsu Matsugaki (Power Electronics Circuit and Systems Laboratory, Green Electronics Research Institute, Kitakyushu), Tamotsu Ninomiy

著者名(英語): Yusuke Hayashi (Power Electronics Circuit and Systems Laboratory, Green Electronics Research Institute, Kitakyushu), Yoshikatsu Matsugaki (Power Electronics Circuit and Systems Laboratory, Green Electronics Research Institute, Kitakyushu), Tamotsu Ninomiya (Power Electronics Circuit and Systems Laboratory, Green Electronics Research Institute, Kitakyushu)

キーワード: dc-dc transformer (dcx)，capacitive isolation，multicell topology，ISOP (input series output parallel)，IPOS (input parallel output series)

要約(英語): This paper proposes a new capacitively isolated multicell dc-dc transformer (dcx). The proposed dcx consists of dc-dc cell converters with pairs of isolation capacitors that substitute for high frequency transformers. The capacitively isolated cell converter achieves higher efficiency compared with the conventional inductively isolated dc-dc converter because of no transformers. The multicell approach also accomplishes the various voltage transformation ratios based on the input-series-and-output-parallel and input-parallel-and-output-series connections of the cell converters, overcoming the drawback of the capacively isolated converter with the fixed voltage transformation ratio. The analysis of the isolation voltage-sharing across the capacitors was conducted to show the feasibility of the proposed multicell dcx. The prototype of the 96V-24V, 200W dcx using two 48V-24V, 100W capacitively isolated dc-dc cell converters was also fabricated to confirm the validity of the analysis. The proposed approach contributes to the achievement of highly efficient and scalable power converters to realize future low-carbon societies.

本誌: IEEJ Journal of Industry Applications Vol.6 No.4 （2017）

本誌掲載ページ: 268-277 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/6/4/6_268/_article/-char/ja/