超高压输电线路断相测距工程计算新方法

New Algorithm For Engineering Fault Location of EHV Transmission Line Open Conductor Faults

针对超高压线路断相时,故障突变量原理的线路保护及故障录波器无法实现故障测距的现状,提出了一种基于线路集总参数模型的断相故障测距工程计算新方法,介绍了该计算方法的原理,分析了该计算方法的可行性,并通过算例验证了该方法的有效性。

While EHV transmission line occurs the open conductor fault,the line protections and fault recorders based on fault component data can＇t locate the fault point.A new algorithm for engineering fault location is suggested based on the lumped parameter model.In this thesis,the principle of the algorithm is introduced and the feasibility is analyzed.the validity of this algorithm is proved by an example.