Y結線モジュラーマルチレベル変換器STATCOMにおける対称座標法を用いた直流キャパシタ電圧制御法

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: 2017/09/01

タイトル(英語): DC Capacitor Voltage Control using Symmetrical Coordinates Frame for STATCOM Based on Star-Connected Modular Multilevel Converter

著者名: 上田　亮（立命館大学），松井　克樹（立命館大学），柿ヶ野　浩明（立命館大学）

著者名(英語): Ryo Ueda (Ritsumeikan University), Katsuki Matsui (Ritsumeikan University), Hiroaki Kakigano (Ritsumeikan University)

キーワード: モジュラーマルチレベル変換器，STATCOM，対称成分　　modular multilevel converter，STATCOM，symmetrical components

要約(英語): STATCOMs have attracted attention as var compensators on electric power distribution systems. In this study, a star-connected modular multilevel converter (MMC) was applied to STATCOM. The voltage across the strings of the star-connected MMC was 1/√3 times that of a delta-connected MMC. MMCs can be interconnected without a transformer because they have high equivalent carrier frequency through phase-shifted pulse-width modulation. The dc capacitor voltage control of a star-connected MMC is relatively complex compared with delta connected MMCs, which have a circulation current as a control parameter. Relevant literature suggests that conventional dc capacitor voltage controls of MMCs for STATCOMs might be difficult to operate when the output reactive power is zero var. This paper presents a new dc capacitor voltage control method using symmetrical components. The overall control block mainly consists of two parts: average dc and dc capacitor voltage controls. The proposed dc capacitor voltage control and reactive power control were verified through experiments.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.137 No.9 （2017）

本誌掲載ページ: 696-703 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/137/9/137_696/_article/-char/ja/