乌东德与滇西北共用接地极线对直流输电系统影响研究  

Research on the Influence of the Common Ground Electrode Line Between Wudongde and NorthwestYunnan on the HVDC Transmission System

作　　者：徐攀腾[1] 朱博 喻文翔 宋述波[1] 焦石 樊友平[2] 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)

机构地区：[1]中国南方电网有限责任公司超高压输电公司广州局,广东广州510500 [2]武汉大学电气与自动化学院,湖北武汉430072

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)。

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.

关 键 词：多端直流输电 共用接地极线 控制系统 保护系统 

分 类 号：TM723[电气工程—电力系统及自动化]