配电网故障快速定位系统研究

提出了一种配电网故障快速定位系统的设计方案。该系统采用柱上故障监测终端识别故障,采用控制主站定位故障区段,两者通过GPRS通信管理机交换数据;采用过流速断法识别短路故障,采用全电流法识别接地故障;针对故障信息缺失及畸变情况,采用三态标识法对传统故障区段定位算法进行改进。仿真结果表明,在故障信息缺失和畸变的情况下,改进的故障区段定位算法可准确定位故障,容错性高。

Research of fast fault positioning system of distribution network

The paper proposed a design scheme of fast fault positioning system of distribution network.The system uses pole-mounted fault monitoring terminal to recognize faults and control master station to position fault section,the both exchange data through GPRS communication processor;uses instantaneous over-current method to recognize short circuit fault and total current method to recognize grounding fault.For situations of missing and distortion of fault information,the system uses tristate identification method to improve traditional positioning algorithm of fault section.The simulation result shows that the improved positioning algorithm of fault section can accurately position fault under situations of missing and distortion of fault information,it has high fault tolerance.