高圧IGBTを2直列3並列接続した高圧大容量DC/DC変換器

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: 2019/06/01

タイトル(英語): High-Voltage DC/DC Converter with Two-Series, Three-Parallel Connected IGBTs

著者名: 石橋　卓治（三菱電機（株）先端技術総合研究所／千葉大学大学院融合理工学府），地道　拓志（三菱電機（株）先端技術総合研究所），岩田　明彦（三菱電機（株）先端技術総合研究所），佐藤　之彦（千葉大学大学院融合理工学府）

著者名(英語): Takaharu Ishibashi (Mitsubishi Electric Corporation, Advanced Technology R&D Center/Graduate School of Science and Engineering, China Unibersity), Takushi Jimichi (Mitsubishi Electric Corporation, Advanced Technology R&D Center), Akihiko Iwata (Mitsubishi

キーワード: 洋上風力発電，HVDC送電，DC集電，2直列3並列接続IGBT　　offshore wind farm，HVDC transmission system，DC collection system，two-series three-parallel connected IGBTs

要約(英語): In the last decade, many projects on offshore wind farms have been planned and conducted to be compliant with government policies, especially in Europe. Some projects adopt HVDC transmission using a long-distance submarine cable from offshore to onshore. However, medium-voltage (MV) collection grids use AC, not DC. Moreover, the MW rating of wind turbines have been increasing over the years. The increase in the MW rating has led to higher currents in the MV collection grid and longer distances between wind turbines. Thus, the MVDC collector grid is expected, and an HV DC/DC converter is required to step up the MVDC to HVDC.This paper introduces a circuit configuration of a high-voltage DC/DC converter with two-series, three-parallel connected IGBTs (2S3P-IGBT) to convert MVDC to HVDC and the switching test results of 2S3P-IGBTs. Further, this paper discusses a design method of a snubber capacitor for voltage sharing and the zero-voltage switching operation in series-connected IGBTs. A bus-bur construction is also discussed to reduce current mismatch in parallel-connected IGBTs. Experimental results show less than 10% voltage imbalance and current mismatch.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.139 No.6 （2019） 特集：自動車の電動化技術

本誌掲載ページ: 597-605 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/139/6/139_597/_article/-char/ja/