摘要
利用增广故障信息阵以及三态标识法提出了故障定位的新判据,即将电源节点作为增广节点考虑形成网络描述矩阵,再分别根据故障信息节点是否通过故障电流以及馈线终端单元FTU(FeederTerminalUnit)本身故障三种状态形成故障判定矩阵的对角元素,继而进行故障定位。还给出了FTU信息上传失败以及上传错误两种情况下的判定。该方法有效地解决了线路末端故障以及FTU本身故障的问题,无需复杂的矩阵乘运算以及规格化处理,可满足实时性要求。
Using enlarged fault information matrix and three-status-identifier method,a new fault locating criterion for distribution system is presented,in which the source nodes are taken to construct network description matrix and the diagonal elements of fault judgment matrix is formed in accordance with the three states(positive fault current,no or negative fault current,and FTU error) to prosecute the fault location. Two FTU conditions(uploading failure,incorrect message) can be estimated. The algorithm effectively resolves the problem of fault location of line terminal and FTU error. Since it does not need burdensome matrix multiplication and unification,it can be used in real-time applications.
出处
《电力自动化设备》
EI
CSCD
北大核心
2005年第6期31-33,共3页
Electric Power Automation Equipment
关键词
电力系统
配电网
故障定位
增广故障信息矩阵
power system
distribution network
fault locating
enlarged fault information matrix
