在双端电压行波定位的基础上,提出了一种基于整个输电网的行波故障定位算法,该算法在某一条线路故障后每个变电站均记录电压行波到达该站的时间,然后由主站根据整个输电网中各变电站所有的时间信息进行融合处理和容错分析,从而在某一台定位装置故障、启动失灵或时间记录错误后仍能进行精确定位。仿真结果表明,该算法具有很强的容错性和很高的定位精度。 Based on the dual-terminal voltage traveling wave locating, a traveling wave fault location algorithm based on the entire transmission network is proposed. Each substation records the time when the traveling wave reaches the station after a certain line failure, Based on all the time information of the substations in the entire transmission network, the master station performs fusion processing and fault tolerance analysis so as to accurately locate a fault of a positioning device, a startup failure or a time recording error. Simulation results show that the algorithm has strong fault tolerance and high positioning accuracy.