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换流变压器阀侧单相接地故障保护动作分析
引用本文:高爱云,聂娟红,李晓华,蔡泽祥.换流变压器阀侧单相接地故障保护动作分析[J].电工电能新技术,2010,29(4).
作者姓名:高爱云  聂娟红  李晓华  蔡泽祥
作者单位:1. 广东水利电力职业技术学院电力系,广东,广州,510635
2. 北京四方继保自动化股份有限公司,北京,100085
3. 华南理工大学电力学院,广东,广州,510640
摘    要:文章系统分析了超高压直流输电系统的换流变压器阀侧发生单相接地故障时的特点,并讨论了相应的换流变压器差动保护和换流器差动保护的动作行为,最后运用EMTDC对CIGRE直流输电标准测试系统的整流侧和逆变侧换流变压器阀侧单相接地故障进行了仿真分析,研究了交直流保护系统的配合及相关的解决措施,完善了超高压直流输电系统的故障分析和保护配置。

关 键 词:换流变压器  阀侧单相接地  交直流保护  

Protection analysis of single-phase ground fault at converter transformer valve side
GAO Ai-yun,NIE Juan-hong,LI Xiao-hua,CAI Ze-xiang.Protection analysis of single-phase ground fault at converter transformer valve side[J].Advanced Technology of Electrical Engineering and Energy,2010,29(4).
Authors:GAO Ai-yun  NIE Juan-hong  LI Xiao-hua  CAI Ze-xiang
Affiliation:GAO Ai-yun1,NIE Juan-hong2,LI Xiao-hua3,CAI Ze-xiang3(1.Guangdong Technical College of Water Resources , Electric Engineering,Guangzhou 510635,China,2.Beijing Sifang Automation Co.,Ltd,Beijing 100085,3.Electric Power College of South China University of Technology,Guangzhou 510640,China)
Abstract:Characteristic of single-phase ground fault at converter transformer valve side in HVDC system is ana-lyzed in this article.Protection of converter transformer and converter is discussed.Single-phase ground fault simu-lation of CIGRE at converter transformer valve is completed by EMTDC.By discussing coordination and strategy of AC /DC protection the fault analysis and protection design in HVDC system are improved.
Keywords:converter transformer  single-phase ground fault at valve side  AC /DC protection  
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