全球能源互联网2025，Vol.8Issue(1)：3-12,10.DOI:10.19705/j.cnki.issn2096-5125.2025.01.002
LCC-VSC混合级联直流技术在江苏电网的应用研究
Application of LCC-VSC Hybrid Cascaded DC Technology in Jiangsu Power Grid
王之伟 1郑建华 2万振东 2程亮 1史大军 2虞瑄2
作者信息
- 1. 国网江苏省电力有限公司,江苏省 南京市 210000
- 2. 中国电力工程顾问集团华东电力设计院有限公司,上海市 黄浦区 200001
- 折叠
摘要
Abstract
The LCC-VSC cascaded DC topology and basic operating characteristics are expounded.Combined with the main problems in the development of Jiangsu power grid,the application background of hybrid cascaded DC in Jiangsu power grid is analyzed.Focusing on the problems of security and stability with multi-feed DC and the improvement of the power receiving capacity of load center,the advantages of applying the hybrid cascaded DC technology are studied and analyzed.The research and analysis show that,compared with the conventional DC technology,the hybrid cascaded DC technology is beneficial to reduce the interaction between the multi-feeding DC at the receiving end,reduce the number of commutation failures of the nearby conventional DC,and improve the secutity and stability level of the receiving end power grid.Through the flexible switching of the operation modes of multiple VSC converters,the necessary power flow control and dynamic reactive power support capabilities can be provided for the AC power grid,and the power receiving capacity of the receiving end load center can be improved.Finally,combined with the characteristics of Jiangsu power grid,the idea of further development and application of hybrid cascaded multi-terminal DC technology is proposed.关键词
混合级联直流系统/换相失败/江苏电网/直流多馈入系统/安全稳定/受端电网Key words
hybrid cascaded DC system/commutation failure/Jiangsu power grid/DC multi-feed system/security and stability/receiving-end power grid分类
信息技术与安全科学引用本文复制引用
王之伟,郑建华,万振东,程亮,史大军,虞瑄..LCC-VSC混合级联直流技术在江苏电网的应用研究[J].全球能源互联网,2025,8(1):3-12,10.
