Loss Reduction of Modular Multilevel Converter with Balancing Circuit for Low-Voltage Grid Converter

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: 2022/01/01

タイトル(英語): Loss Reduction of Modular Multilevel Converter with Balancing Circuit for Low-Voltage Grid Converter

著者名: Takuro Arai (Toshiba Infrastructure Systems and Solutions Corporation), Kei Sekiguchi (Toshiba Infrastructure Systems and Solutions Corporation), Hiroshi Mochikawa (Toshiba Infrastructure Systems and Solutions Corporation), Kenichiro Sano (Department of E

著者名(英語): Takuro Arai (Toshiba Infrastructure Systems and Solutions Corporation), Kei Sekiguchi (Toshiba Infrastructure Systems and Solutions Corporation), Hiroshi Mochikawa (Toshiba Infrastructure Systems and Solutions Corporation), Kenichiro Sano (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: modular multilevel converter，MMC，grid-connected converter，cell capacitor，balance circuit，Si-MOSFET

要約(英語): This study proposes a modular multilevel converter by applying a balancing circuit with a resistor for a low-voltage grid converter. The proposed balancing circuit, which is controlled by the same gate signal as that of the main switch, can reduce the loss of the additional balancing circuit and the current rating of the balance switch without the need for additional the cell capacitors. Only one voltage sensor per converter arm is required to automatically balance the cell capacitor voltages. The experimental results indicate that the cell capacitor voltages are well balanced during a rated operation of 10kW and a high efficiency of up to 99.2% is achieved, which is almost the same as that without a balancing circuit.

本誌: IEEJ Journal of Industry Applications Vol.11 No.1 （2022）

本誌掲載ページ: 216-226 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/11/1/11_20012264/_article/-char/ja/