MHz駆動電流形スナバレスソフトスイッチングDC-DCコンバータ

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: 2022/01/01

タイトル(英語): MHz-Driving Current-Fed Snubberless Soft Switching DC-DC Converter

著者名: 宮崎　竜成（神戸大学大学院海事科学研究科マリンエンジニアリング講座），三島　智和（神戸大学大学院海事科学研究科マリンエンジニアリング講座），頼　慶明（台湾国立中興大学電気工学科）

著者名(英語): Ryusei Miyazaki (Department of Marine Engineering, Graduate School of Maritime Science, Kobe University), Tomokazu Mishima (Department of Marine Engineering, Graduate School of Maritime Science, Kobe University), Ching-Ming Lai (Department of Electrical Engineering, National Chung Hsing University)

キーワード: 電流形昇圧DC-DCコンバータ，燃料電池，窒化ガリウム高電子移動度トランジスタ（GaN-HEMT），高周波プレーナトランス，磁気結合リアクトル，ゼロ電流ソフトスイッチング（ZCS）　　current-fed step-up DC-DC converter，fuel cell，GaN-HEMT，high-frequency planar transformer (HF-X)，magnetically coupled inductors，zero current soft-switching (ZCS)

要約(英語): This paper presents a novel current-fed step-up DC-DC converter that is suitable for the front-end high-frequency link DC-DC converter (DC-X) in a grid-tied inverter of a fuel cell interface. The proposed DC-DC converter features the snubberless zero current soft-switching (ZCS) commutation with high-frequency switching by adopting quasi-resonance and parallel load resonance; the multi resonance while minimizing the number of additional circuit components. The switch-mode transitions of the proposed DC-DC converter are explained in detail for revealing the principle of snubberless ZCS due the multi resonance. In order to analysis the proposed DC-DC converter more precisely, a time-domain analysis is employed to examine the high-order harmonics in the three-level stepwise voltage of the quasi-resonant high frequency inverter, which is superior to a conventional sinusoidal AC analysis. The effectiveness of the proposed converter and the analytical strategy is demonstrated by comparing the theoretical and simulation results, after which the feasibility is verified by experiment of a 1 MHz-55 W class prototype with Gallium Nitride (GaN) high-electron-mobility-transistor (HEMT).

本誌: 電気学会論文誌D（産業応用部門誌） Vol.142 No.1 （2022）

本誌掲載ページ: 2023/09/17 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/142/1/142_9/_article/-char/ja/