大規模洋上風力発電の直流送配電システム向け高圧大容量DC/DC変換器の回路方式と制御法

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: 2018/01/01

タイトル(英語): Circuit Topology and Control Scheme of a High-Power High-Voltage DC/DC Converter for Large Scale Offshore Wind Project with DC Collector Grids

著者名: 石橋　卓治（三菱電機（株）先端技術総合研究所），地道　拓志（三菱電機（株）先端技術総合研究所），森　修（三菱電機（株）先端技術総合研究所）

著者名(英語): Takaharu Ishibashi (Advanced Technology R&D Center, Mitsubishi Electric Corporation), Takushi Jimichi (Advanced Technology R&D Center, Mitsubishi Electric Corporation), Osamu Mori (Advanced Technology R&D Center, Mitsubishi Electric Corporation)

キーワード: 洋上風力発電，HVDC送電，DC集電，電圧バランス制御＼Offshore wind farm，HVDC transmission system，DC collection system，Voltage balancing control

要約(英語): In the last decade, a number of offshore wind projects have been implemented or planned to meet the CO2 emission targets and nuclear fission policy, especially in Europe. Some projects adopt high-voltage DC (HVDC) transmission with a long-distance submarine cable laid from offshore to onshore. The HVDC transmission system has the advantages of high efficiency and low cost, when compared with AC systems. On the other hand, a medium-voltage (MV) collector grid uses AC 33kV instead of DC so that the efficiency and cost will be poor in case of high-power turbines because the higher power rating of turbines causes higher current in the collector grid and requires greater separation between the turbines. Presently, the MW rating of the latest wind turbines exceeds 8.0MW, and the MW rating has been increasing as the years go by. Thus, the MVDC collector grid will be installed, and an HVDC/DC converter is required to step up the MVDC to HVDC.This paper introduces a circuit topology and control scheme of a high-power HVDC/DC converter to convert MVDC to HVDC.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.138 No.1 （2018） 特集：半導体電力変換研究会

本誌掲載ページ: 58-66 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/138/1/138_58/_article/-char/ja/