摘要
针对两回直流共用接地极线的两种方案,在构建共用接地极线的直流输电系统稳态模型的基础上,研究共用接地极线方案对两回直流控制系统、保护系统的影响,并对相应的解决措施进行了分析。对直流保护系统,接地极线路相关故障时,有双回直流闭锁的风险。
Aiming at the two schemes of two DCs sharing the grounding electrode line,on the basis of constructing the steady-state model of the DC transmission system with the common grounding electrode line,the influence of the common grounding electrode line scheme on the two-circuit DC control system and protection system is studied.The corresponding solutions are analyzed.For DC protection systems,there is a risk of double-circuit DC blocking when there is a fault related to the grounding electrode circuit.
作者
徐攀腾
朱博
喻文翔
宋述波
焦石
樊友平
XU Panteng;ZHU Bo;YU Wenxiang;SONG Shubo;JIAO Shi;FAN Youping(Guangzhou Bureau of China Southern Power Grid Co.,Ltd.EHV Transmission Company,Guangzhou 510500,China;School of Electrical and Automation,Wuhan University,Wuhan 430072,China)
出处
《电工技术》
2022年第7期49-53,共5页
Electric Engineering
基金
国家重点研发计划项目(编号2016YFB0900903)。
关键词
多端直流输电
共用接地极线
控制系统
保护系统
multi-terminal DC transmission
common ground wire
control system
protection system
