2重Y結線モジュラーマルチレベル変換器の制御法

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: 2013/09/01

タイトル(英語): Control Method for Double Y-connection Modular Multilevel Converter

著者名: 菊間　俊明（電力中央研究所），高崎　昌洋（電力中央研究所）

著者名(英語): Toshiaki Kikuma (Central Research Institute of Electric Power Industry), Masahiro Takasaki (Central Research Institute of Electric Power Industry)

キーワード: 直流送電，自励式変換器，回路シミュレーション，マルチレベル変換器　　HVDC transmission，voltage source converter，circuit simulation，multi-level converter

要約(英語): Recently, voltage source converter (VSC) HVDC systems employing a modular multilevel converter (MMC) topology have been introduced in power systems because of the low loss and the low harmonic characteristics. An MMC consists of half bridge cells or full bridge cells connected in series. The double Y-connection MMC is a type of MMC family that can handle active power and is expected to be used for HVDC and BTB systems.In this study, we proposed a transformation matrix for double Y-connection MMCs. The voltage and current of the double Y-connection MMC are separated into AC, loop and DC components in the transformation. We write state equations for the double Y-connection MMC circuit and prove the independence of the three components with the transformation. By using the transformation, we can control the voltage and current of the AC, DC, and loop circuits for the DC capacitor voltage balance control independently. In addition, we calculated the DC voltage amplitude that the double Y-connection MMC could output, and analyzed the voltage ripple of the cell capacitor when a second order current was superimposed on the arm current of the MMC. The utilization ratio of the semiconductor devices is improved and the amplitude of the cell voltage ripple becomes large by second order superimposition.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.133 No.9 （2013）

本誌掲載ページ: 917-927 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/133/9/133_917/_article/-char/ja/