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タイトル
和文:バランス回路を接続した低圧系統連系変換器向けモジュラー・マルチレベル変換器の損失低減 
英文:Loss Reduction of Modular Multilevel Converter with Balancing Circuit for Low-Voltage Grid Converter 
著者
和文: 新井卓郎, 関口慧, 餅川宏, 佐野憲一朗, 藤田英明.  
英文: Takuro Arai, Kei Sekiguchi, Hiroshi Mochikawa, Kenichiro Sano, Hideaki Fujita.  
言語 Japanese 
掲載誌/書名
和文:電気学会論文誌D(産業応用部門誌) 
英文:IEEJ Transactions on Industry Applications 
巻, 号, ページ vol. 141    no. 6    pp. 461-471
出版年月 2021年6月1日 
出版者
和文:一般社団法人 電気学会 
英文:The Institute of Electrical Engineers of Japan 
会議名称
和文: 
英文: 
開催地
和文: 
英文: 
公式リンク https://www.jstage.jst.go.jp/article/ieejias/141/6/141_461/_article/-char/ja
 
DOI https://doi.org/10.1541/ieejias.141.461
アブストラクト 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.

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