MMCのセルコンデンサ電流を低減できる変調法の提案とアクティブフィルタへの応用

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: 2023/08/01

タイトル(英語): New Modulation Method to Reduce Cell Capacitor Ripple Current in Modular Multilevel Cascade Converters and its Application to Active Power Filters

著者名: 新井　卓郎（東芝インフラシステムズ（株）），餅川　宏（東芝インフラシステムズ（株）），佐野　憲一朗（東京工業大学 工学院電気電子系），藤田　英明（東京工業大学 工学院電気電子系）

著者名(英語): Takuro Arai (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: モジュラー・マルチレベル変換器，疑似ユニポーラ変調，セルコンデンサ，リプル電流，PWMチャンネル　　modular multilevel cascade converter，quasi-unipolar modulation，cell capacitor，ripple current，PWM channel

要約(英語): This paper proposes a new modulation method for modular multilevel cascade converter-based active power filters (MMC-APFs). The proposed modulation method uses the same pulse width modulation (PWM) controller as a traditional bipolar modulation method, and the generated PWM signals are interchanged among the bridge cells. This method makes it possible to shift the carrier phase angle between two switching legs in one cell, reducing the ripple current through the cell capacitor without increasing the number of PWM channels. This is important to reduce the cost of the control circuit, especially in low-voltage applications of MMCs. An experimental circuit of a 3.3kVA MMC-APF demonstrates a 20% reduction in the ripple current and a 38% reduction in the power loss in the cell capacitor.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.143 No.8 （2023）

本誌掲載ページ: 590-599 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/143/8/143_590/_article/-char/ja/