电网调度自动化SOE及GPS校验实现技术  

Implementation techniques of SOE and GPS verification in power network dispatch automation

作　　者：张周胜[1] 张晓阳[2] 浦子耿 徐洪峰 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200030 [2]陕西省电力公司调度中心,陕西西安710004 [3]上海益奥自控设备有限公司,上海201602

出　　处：《电力自动化设备》2009年第4期122-125,共4页Electric Power Automation Equipment

摘　　要：电力系统精确的统一时钟是运行监控和事故后故障分析的基本前提,提出并分析了综合校验实现技术的原理与实现方法。事件顺序记录(SOE)及全球卫星定位系统(GPS)综合校验技术是利用GPS取得标准的统一的同步时标,配合自动化技术的功能设计,实现对调度系统厂站内/站间事件分辨率、系统同步时钟、系统过量遥信变位处理能力的校验测试。通过模块继电器空接点输出脉冲来比较被测系统各遥信点对同一事件的SOE分辨率及各单元对同一事件响应的时间差异。通过模块遥信变位输入来检验现场设备变位时间的准确性。应用开发的校验装置,试验结果表明达到设计技术要求。The unified accurate clock is an essential element for the operation and post-tault analysis of electric power system. The theories and implementation techniques of synthetical SOE and GPS verification are introduced, which obtain the unified standard time from GPS, cooperated with the functional design of automation techniques, to implement the verification of the SOE resolution within and among substations, the system sync clock and the capacity of excessive COS（Change-Of-State） signals. The SOE resolution of every remote signaling point and the time difference of every unit are compared with each other for the same event of the output pulse from a relay module. The COS time accuracy of site devices is verified using the COS input module. A tester applying the proposed verification technique is designed and the experimental results show the design requirements satisfied.

关 键 词：全球定位系统 事件顺序记录 综合校验 分辨率 电力系统 

分 类 号：TM73[电气工程—电力系统及自动化]