不同拓扑结构的换流器对启动特性影响  

Influence of Converters with Different Topologies on Start-Up Characteristics

作　　者：余敬冬 曾子安 吕习超 荣军 陆小剑 石万里 樊友平[2] YU Jingdong;ZENG Zian;Lü Xichao;RONG Jun;LU Xiaojian;SHI Wanli;FAN Youping(Liuzhou Bureau of EHV Transmission Company,CSG,Liuzhou,Guangxi 545000,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司柳州局,广西柳州545000 [2]武汉大学电气与自动化学院,武汉430072

出　　处：《南方电网技术》2022年第2期28-33,共6页Southern Power System Technology

基　　金：中国南方电网有限责任公司科技项目(CGYKJXM20180508);国家重点研发计划项目(2016YFB0900903)。

摘　　要：为了对昆柳龙输电工程中的启动电阻选型和系统启动策略提出建议。首先对柔性换流站的启动回路做了简介,然后对不同拓扑结构下的启动回路进行分析,得到了不同拓扑结构下的启动特性。最后针对昆柳龙输电工程中的柔性换流站,搭建了PSCAD/EMTDC模型对冲击能量进行仿真,得到的结果与理论计算均相符。根据仿真结果提出了对昆柳龙工程中柔性换流站启动电阻冲击吸收能量要求和系统启动建议。In order to make suggestions on the selection of starting resistance and the starting strategy of in the Kunliulong transmission project.This paper first introduces the start-up circuit of the flexible converter station.Then the startup loops under different topologies are analyzed,and the startup characteristics under different topologies are obtained.Finally,for the flexible converter station in Kunliulong transmission project,a PSCAD/EMTDC model is built to simulate the impact energy,and the results obtained are consistent with theoretical calculations.According to the simulation results,the requirements for the starting resistance shock absorption energy of the flexible converter station in Kunliulong transmission project and the system starting suggestions are proposed.

关 键 词：混合多端直流系统 MMC混合拓扑结构 启动特性 仿真分析 

分 类 号：TM721[电气工程—电力系统及自动化]