基于配电自动化系统以及现有断路器和柱上开关,提出了一种用现场检测到的断路器和柱上开关反馈的信息完成对故障段的定位,利用行波测距原理在此故障段上完成对故障点的精确定位。最后进行了实例验证,仿真结果和实例验证结果都表明,利用行波测距原理能够对难于准确定位的故障类型精确定位,并且算法简单,耗时较小,易于硬件实现,对配电网精确故障定位装置的研制提供了理论和技术依据。 Based on the distribution automation system as well as the existing circuit breakers and on-column switches, a method is proposed to locate the fault by using the feedback information from the circuit breakers and on-column switches detected in the field. By using traveling wave ranging principle, On the completion of the precise positioning of the fault point. Finally, an example is given to verify the results. The simulation results and examples show that the method can accurately locate the type of fault which is difficult to locate accurately. The algorithm is simple, time-consuming and easy to implement in hardware. Fault location device provides a theoretical and technical basis.