Bidirectional Converter with Multi-stage FETs Featuring Voltage Balance Control Function Using Variable Capacitors

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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: 2021/01/01タイトル(英語): Bidirectional Converter with Multi-stage FETs Featuring Voltage Balance Control Function Using Variable Capacitors著者名: Y uki Ishikura (Murata Manufacturing Co., Ltd./Nagoya University), Tatsuya Hosotani (Murata Manufacturing Co., Ltd./Nagoya University), Masayoshi Yamamoto (Nagoya University)著者名(英語): Yuki Ishikura (Murata Manufacturing Co., Ltd./Nagoya University), Tatsuya Hosotani (Murata Manufacturing Co., Ltd./Nagoya University), Masayoshi Yamamoto (Nagoya University)キーワード: bidirectional converter with multi-stage FET，variable capacitor，voltage balance control function，series connection要約(英語): This paper presents a bidirectional converter with multi-stage FETs featuring voltage balance control function using variable capacitors. The proposed converter is constructed using low-voltage Si-FETs in a series connection, and it improves the voltage balance between the drain-source voltages of the series connected FETs in the OFF period. Using the converter figure of merit (FOM), which can estimate the converter losses from the specifications of the FETs, the effectiveness of the proposed converter is compared to that of a converter using SiC-FETs. The factors of the voltage unbalance are analytically clarified using the equivalent circuit. The principle of voltage balance control function using the variable capacitor is discussed. The experimental results show that the proposed converter can achieve a maximum power conversion efficiency of 99.2%.本誌: IEEJ Journal of Industry Applications Vol.10 No.1 （2021） Special Issue on “Motor Drive and its Related Technologies”本誌掲載ページ: 100-106 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/10/1/10_19003873/_article/-char/ja/ Show more