适应变电站二次系统全面优化的继电保护系统级测试关键技术  

Key Technology of Relay Protection System-level Testing Considering Comprehensive Optimization of Substation Secondary System

作　　者：孟江雯 李仲青 詹荣荣 牟黎 周泽昕 徐凯 余越 任玉保 MENG Jiangwen;LI Zhongqing;ZHAN Rongrong;MOU Li;ZHOU Zexin;XU Kai;YU Yue;REN Yubao(State Key Laboratory of Power Grid Safety(China Electric Power Research Institute),Haidian District,Beijing 100192,China;State Grid of China Technology College,Jinan 250002,Shandong Province,China;State Grid Corporation of China,Xicheng District,Beijing 100031,China)

机构地区：[1]电网安全全国重点实验室(中国电力科学研究院有限公司),北京市海淀区100192 [2]国家电网有限公司技术学院分公司,山东省济南市250002 [3]国家电网有限公司,北京市西城区100031

出　　处：《电网技术》2023年第9期3791-3798,共8页Power System Technology

基　　金：国家电网有限公司科技项目“自主可控新一代变电站配置信息可靠管控及继电保护测试关键技术研究”(5100-202155026A-0-0-00)。

摘　　要：变电站二次系统优化完成了从技术架构到功能设计的全面提升,继电保护作为二次系统核心业务,确保其可靠运行是电网安全稳定运行的关键基础。为了充分考核验证新一代继电保护系统的可靠性,该文首先从自主可控、功能优化、运行监控以及安全防护方面分析了变电站二次系统全面优化提升下的继电保护技术革新点以及由此带来的运行风险。然后在梳理继电保护业务功能交互数据流的基础上,针对继电保护系统级测试关键技术进行了探讨,提出了继电保护在复杂工况下动作性能、功能交互、配置管控、虚回路可靠性等方面的测试方法。最后建立了继电保护系统级测试平台,完成了对继电保护动作性能和功能实现关键环节的全面考核验证,对于消除设备缺陷和运行隐患、推动优化总体方案的实用进程具有重要意义。The optimization of the substation secondary system has completed the overall improvement of the secondary system from the technical architecture to the functional design.The reliable operation of the relay protection,the core business of the secondary system,is the key basis for the safe and stable operation of the power grid.In order to fully assess and verify the reliability of the new generation relay protection system,this paper first analyzes the innovation points of the relay protection technology and the resulting operation risks from the aspects of autonomous control,function optimization,operation monitoring and safety enhancement on the premise of the comprehensive optimization of substation secondary system.Moreover,on the basis of sorting out the interactive data flow of the relay protection functions,the key technologies of the relay protection system-level testing are discussed.Test methods for the relay protection in terms of the operation performance under the complex working conditions,the configuration control,the functional interaction and the virtual loop reliability are proposed.In the end,a relay protection system-level test platform is established,accompolishing the comprehensive assessment and verification of the relay protection action performance and function,which is of great significance for eliminating the equipment defects,reducing the peration risks and accelerating the practical process of the optimization scheme.

关 键 词：变电站 二次系统 优化 继电保护 系统级测试 

分 类 号：TM721[电气工程—电力系统及自动化]