基于实时与仿真拓扑结构的保护灵敏度在线校验  

Onlin verification of relay protection sensitivities based on real-time and emulation topology configuration

作　　者：胡扬宇[1] 李冬梅 张建芬[3] 杨宛辉[3] 

机构地区：[1]河南省电力调度通信中心,河南郑州450052 [2]河南省电力勘测设计院,河南郑州450007 [3]郑州大学电气工程学院,河南郑州450002

出　　处：《中国电力》2004年第7期9-11,共3页Electric Power

基　　金：河南省科委科技攻关资助项目(0224330010)

摘　　要：利用控制中心SCADA系统的资源,开发保护灵敏度在线校验程序,为值班人员提供一种在线监测保护灵敏度的手段,对保证电力系统继电保护可靠性具有实际意义。根据城市电网的特点,确定电力系统实时网络拓扑结构,进行实时结线分析并形成导纳矩阵,在此基础上将短路计算的理论运用于在线。利用专家系统进行保护灵敏度的在线校验。同时,该系统可在线跟踪系统接线方式变化,对当前网架结构进行修改,实现对任意一种运行方式的保护灵敏度仿真计算。Based on the information acquired from the control center of a SCADA system, online verification program of relay protection sensitivities are developed, which provides an online means for operators to monitor the reliability of protection devices. According to the features of urban power network, the real-time network topology configuration is confirmed, and nodal admittance matrix is analyzed, and the short-circuit calculation is carried out online. By means of an expert system, the online verication of protection sensitivities is realized. This sensitivity verification can also be used for any network configuration modified from current power network connection.

关 键 词：电力系统 继电保护 SCADA系统 仿真 拓扑结构 保护灵敏度 在线校验 

分 类 号：TM774[电气工程—电力系统及自动化]