Reactive Power Compensation of Modular Multilevel Cascaded Converter STATCOM using Average Power Inter-Cluster Control Method under Unbalanced Voltage Conditions

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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: 2021/05/01タイトル(英語): Reactive Power Compensation of Modular Multilevel Cascaded Converter STATCOM using Average Power Inter-Cluster Control M ethod under Unbalanced Voltage Conditions著者名: Oghenewvogaga Oghorada (Department of Electrical & Information Engineering, Landmark University), Huang Han (Department of engineering, Swansea University), Ayodele Esan (Department of Electrical & Information Engineering, Landmark University)著者名(英語): Oghenewvogaga Oghorada (Department of Electrical & Information Engineering, Landmark University), Huang Han (Department of engineering, Swansea University), Ayodele Esan (Department of Electrical & Information Engineering, Landmark University)キーワード: static synchronous compensator，asymmetrical fault，modular multilevel cascaded converter，average active power balancing control，inter-cluster balancing，reactive power要約(英語): This presents a reactive power control strategy for the single delta bridge cell modular multilevel cascaded converter (SDBC-MMCC) for static synchronous compensator (STATCOM) under asymmetric voltage conditions. An average power balancing method is proposed to support continuous injection of reactive power under grid voltage fault conditions, considering sub-module capacitor voltage balancing and STATCOM maximum phase current protection. Analytical solutions of the STATCOM phase currents are presented. A maximum current limit control scheme is proposed to ensure continuous reactive power injection and STATCOM operation under unbalanced voltage condition. The fault-ride through capability of the SDBC STATCOM under asymmetrical condition is analyzed using the proposed method. A comparative analysis shows that the current requirement of the proposed strategy is superior to the zero-sequence current balancing technique.本誌: IEEJ Journal of Industry Applications Vol.10 No.3 （2021）本誌掲載ページ: 331-338 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/10/3/10_20005237/_article/-char/ja/ Show more