高周波サイクロコンバータ方式絶縁形単相交流-直流変換器のパワーデカップリング制御法

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: 2018/04/01

タイトル(英語): A Power Decoupling Control Method for an Isolated Single-Phase AC-to-DC Converter Based on a Hign-Frequency Cycloconverter

著者名: 米田　昇平（東京工業大学 大学院理工学研究科 電気電子工学専攻），藤田　英明（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): Shohei Komeda (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology), Hideaki Fujita (Department of Electrical and Electronic Engineering, Tokyo Institute of Technology)

キーワード: 交流直接変換，パワーデカップリング，力率改善，単相整流器，電圧リプル　　direct ac-to-ac power conversion，power decoupling technique，power factor correction，single-phase rectifiers，voltage ripples

要約(英語): This paper proposes a new power decoupling method for a high-frequency cycloconverter which converts the single-phase line-frequency ac input to the high-frequency ac output directly. The cycloconverter consists of two half-bridge inverters, two input filter capacitors, and a series-resonant circuit. The proposed power decoupling method stores the input power ripple at double the line frequency in the filter capacitors. Therefore, the proposed method achieves a unity power factor in ac input and a constant current amplitude in the high-frequency output without any additional switching device or energy storage element. This paper theoretically discusses the principle and operating performance of the proposed power decoupling method, and the viability is confirmed by using an experimental isolated ac-to-dc converter based on the high-frequency cycloconverter. As a result, the proposed power decoupling method effectively improved the displacement power factor in the line current to more than 0.99 and reduced the output voltage ripple to 4% without any electrolytic capacitor.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.138 No.4 （2018） 特集：平成29 年産業応用部門大会

本誌掲載ページ: 352-359 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/138/4/138_352/_article/-char/ja/