南方电网技术2024，Vol.18Issue(2)：30-38,9.DOI:10.13648/j.cnki.issn1674-0629.2024.02.004
2GW海上风电对称单极与对称双极柔直送出方案技术经济性对比
Technical and Economical Comparisons of 2 GW Offshore Wind Power Transmission Schemes by Symmetrical Monopole and Symmetrical Bipolar VSC-HVDC
摘要
Abstract
At present,the voltage source converter based high voltage direct current(VSC-HVDC)transmission technology is usually adopted for the access of large-capacity offshore wind power to the power grid.Symmetrical monopole wiring scheme is adopted for the offshore DC projects that have been put into operation.Although the symmetrical bipolar scheme has higher initial investment,its high reliability can improve the power generation profit in the operation stage.Based on the scale of 2 GW offshore wind power VSC-HVDC transmission,the design comparison of symmetrical monopole system and symmetrical bipolar system are conducted.Two schemes of offshore converter station platform layout and structure design are proposed,and the initial construction investments and full life cycle profits of the two schemes are calculated.The results show that the symmetrical monopole scheme has advantages in whole life cycle economy compared with the symmetrical bipolar scheme.关键词
海上换流站/柔性直流输电/对称单极/对称双极Key words
offshore converter station/VSC-HVDC transmission/symmetrical monopole/symmetrical bipolar分类
动力与电气工程引用本文复制引用
马向辉,张梓铭,吴冇,夏泠风,廖修谱,陈晨,许斌,胡超..2GW海上风电对称单极与对称双极柔直送出方案技术经济性对比[J].南方电网技术,2024,18(2):30-38,9.基金项目
国家自然科学基金资助项目"DRU和MMC混联的轻型化多端直流系统故障穿越研究"(52277120).Supported by the National Natural Science Foundation of China(52277120). （52277120）
