絶縁型高圧AC-DCモジュラーマトリックスコンバータのキャパシタ電圧バランス制御

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: 2023/06/01

タイトル(英語): Capacitor-Voltage-Balancing Control for Isolated Medium-Voltage AC-DC Modular Matrix Converter

著者名: 武道　宏平（名古屋工業大学），竹下　隆晴（名古屋工業大学）

著者名(英語): Kohei Budo (Nagoya Institute of Technology), Takaharu Takeshita (Nagoya Institute of Technology)

キーワード: 絶縁型AC-DCコンバータ，モジュラーマトリックスコンバータ，レベルシフトPWM制御，キャパシタ電圧バランス制御　　isolated AC-DC converter，modular matrix converter，level-shifted PWM control，capacitor-voltage-balancing control

要約(英語): This paper presents a capacitor-voltage-balancing control scheme for an isolated medium-voltage AC-DC converter using level-shifted PWM control of a modular matrix converter (MMxC). The proposed isolated AC-DC converter is composed of the primary MMxC with level-shifted PWM control, high-frequency transformer, and secondary H-bridge circuits. The high-frequency transformer of the proposed circuit can be downsized because the level-shifted PWM control scheme makes the rated frequency of the high-frequency transformer equal to the switching-frequency. The proposed capacitor-voltage-balancing control can compensate for the capacitor voltage imbalance of the MMxC using the positive-sequence and negative-sequence circulating-currents with a power supply frequency and high-frequency voltage. In the proposed control system, the three feedback control systems with DC control variables can be developed to compensate for the capacitor voltage imbalance. The effectiveness of the proposed capacitor-voltage-balancing control scheme and the control systems is verified by experiments using a 200V, 5-kW laboratory prototype.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.143 No.6 （2023） 特集：2022年産業応用部門大会

本誌掲載ページ: 493-505 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/143/6/143_493/_article/-char/ja/