高肇直流换流变非电量 “ 三取二 ” 改造  

"Selecting 2 from 3" Modification for Converter Transformer Non-electricityProtection in Gaopo-Zhaoqing HVDC Project

作　　者：朱璧君 陈维莉 关就 吴梓阳 ZHU Bijun;CHEN Weili;GUAN Jiu;WU Ziyang(Central Southern China Electric Power Design Institute of China Power Engineering Consulting Group Corporation,Wuhan 430071,China;Guangzhou Bureau of China Southern Power Grid EHV Transmission Company,Guangzhou 510663,China)

机构地区：[1]中国电力工程顾问集团中南电力设计院有限公司,湖北武汉430071 [2]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510663

出　　处：《电工技术》2022年第5期167-169,共3页Electric Engineering

摘　　要：现阶段换流变非电量保护的单重化方案已不能满足工程的实际需求,而非电量保护“三取二”配置能有效提高系统可靠性。从换流变非电量的常用保护方案对比及各方案相应可靠性分析,并结合肇庆换流站和高坡换流站直流控保改造工程的特殊性,对实际工程中换流变非电量的配置和改造方式进行总结与比较。The single-layered scheme of non-electrical protection of converter transformers can no longer meet the actual needs of the project,and the three-out-of-two configuration of non-electrical protection can effectively improve the reliability of the system.From the common protection schemes of converter non-electric protection,corresponding reliability of each scheme are compared.Combined with the particularity of DC control and protection transformation project of Zhaoqing converter station and Gaopo converter station,the configuration and transformation methods of converter non electricity in the actual project are summarized and compared.

关 键 词：换流站 换流变 非电量保护 

分 类 号：TM407[电气工程—电器]