基于GPRS通信的一种馈线故障定位方式  

The Orientate Position Method Based on GPRS Communication in Distribution Lines Fault

作　　者：刘旭鹏[1] 付立思[1] 顾欣欣[2] 李辉[2] 

机构地区：[1]沈阳农业大学信息与电气工程学院,110161 [2]国电自动化研究院城乡电网自动化研究所,210003

出　　处：《中国科技信息》2005年第23A期12-13,共2页China Science and Technology Information

摘　　要：本系统利用GPRS信息通道的可靠、高速率、低价来作为馈线自动化的信息通道,当线路发生故障时,FTU通过GPRSModem向配电主站上报信息,主站SCADA中根据网络中开关的连接关系和假定的正方向建立一个网络描述矩阵D,从FTU得到故障状态变量值构成馈线节点故障信息矩阵G,功率方向上相邻的两故障状态变量值进行异或运算,修正D中的故障信息元素,得出故障判别矩阵P,依据P中值为1的元素在P矩阵的位置,轻易的判断出故障区段的位置,同时,下发除故障点两侧开关的合闸命令,恢复非故障区域的供电。The system makes full use of GPRS reliability ,high speed and low costs as feeder automation＇s commnnication chaneels; When liee arises fault,FTU communicates distribution computer by GPffS Modem, The algorithm forms the network describing matrix D on basis of the connection of the switches and power flow directions between two Mjacent switches in the computer SCADA. The fault state variablee from FTU form feeder nade＇s fault information matrix G. The two neighborhood fault state variables in power direction operation in the light of XOE algorithm to revise fault information variables in matrix D and get a fault judgement matrix P. According to the variable location that variable value is equal to 1 in matrix P. The fault section can be identified immediately and correctly.

关 键 词：GPRS 配电网 故障定位 矩阵故障信息元素 

分 类 号：TN929.532[电子电信—通信与信息系统]