モジュラー・マルチレベル・カスケード変換器を用いたFTF（Front-To-Front）システムの実験検証

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: 2015/07/01

タイトル(英語): Experimental Verification of a Front-To-Front (FTF) System Consisting of Two Modular Multilevel Cascade Converters Based on Double-Star Chopper Cells

著者名: 小熊　功太（東京工業大学 大学院理工学研究科 電気電子工学専攻），フィルマン ・　サソンコ（東京工業大学 大学院理工学研究科 電気電子工学専攻），萩原　誠（東京工業大学 大学院理工学研究科 電気電子工学専攻），赤木　泰文（東京工業大学 大学院理工学研究科 電気電子工学専攻）

著者名(英語): Kota Oguma (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Firman Sasongko (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Makoto Hagiwara (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Hirofumi Akagi (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)

キーワード: モジュラー・マルチレベル・カスケード変換器 (MMCC)，FTFシステム，位相シフトPWM　　Modular Multilevel Cascade Converters (MMCC)，front-to-front systems，phase-shifted PWM

要約(英語): This paper presents an experimental discussion on modular multilevel cascade converters based on double-star chopper cells (MMCC-DSCC). Hereinafter, a single MMCC-DSCC is referred to simply as a “DSCC”. A couple of DSCCs are used to form a front-to-front (FTF) system capable of dc voltage matching and galvanic isolation between two dc grids. The FTF system can be considered as a dc-ac-dc power conversion system including an ac-link high-power transformer. The higher the ac-link frequency, the smaller and lighter are the ac-link transformer and dc capacitors. When the so-called “phase-shifted-carrier PWM” is applied to the DSCC, theoretical analysis and computer simulation have confirmed that a ratio of the carrier frequency with respect to the ac-link frequency can be reduced to 5/2. This paper designs, constructs, and tests a 400-Vdc 10-kW downscaled FTF system with a carrier frequency of 450Hz and an ac-link frequency of 180Hz, where their ratio is 5/2. Experimental waveforms obtained from the downscaled system are compared with simulated ones obtained from a software package, PSCAD/EMTDC, under the same operating and circuit conditions. They agree well each other not only under steady states but also under transient states.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.135 No.7 （2015）

本誌掲載ページ: 794-801 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/135/7/135_794/_article/-char/ja/