配电网故障定位与快速抢修系统研究

针对配电网发生故障后采用传统的人工巡线方式存在故障区段定位困难、抢修效率低的问题,设计了一种基于柱上故障定位监测终端的配电网故障定位与快速抢修系统。该系统采用柱上故障定位监测终端实时测量配电网数据,采用过流速断法判别短路故障、全电流法判别接地故障;当故障发生时,柱上故障定位监测终端通过GPRS无线通信模块将故障信息发送到监控主站,监控主站采用改进的矩阵定位算法实现故障区段的准确定位;故障类型及故障位置以短信方式通知相关工作人员并在监控主站界面上显示,从而可实现故障的快速抢修。仿真结果验证了该系统的可行性。

Research of Fault Location and Rapid Repair System of Distribution Network

In view of problems of difficult location for fault section and low efficiency of rush-repair in traditional manual patrolling mode when distribution network happens fault,a fault location and rapid repair system of distribution network based on pole fault location monitoring terminal was designed.The system uses pole fault location monitoring terminal to real-timely measure data of distribution network,and uses instantaneous over-current method to judge short-circuit fault and uses total current method to judge grounding fault.When fault happens,pole fault location monitoring terminal sends fault data to monitoring host through GPRS wireless communication module,monitoring host uses improved matrix location algorithm to realize accurate location for fault section.The fault type and position is noticed to related working personnel by message way and is displayed on interface of monitoring host to realize rapid repair for fault.The simulation result validates feasibility of the system.