电网故障行波定位装置优化配置方法

An Optimal Configuration Method for Traveling Wave Fault Location Equipments in Power Grid

现有的电网故障行波定位装置优化配置方法,算法复杂,不易操作,为此提出了一种电网故障行波定位装置优化配置方法。该算法通过分析电网中任意变电站到故障线路两端变电站的最短路径差与故障线路本身长度之间的关系,可将所有变电站分为两组,求其最小合集,该集合上元素即为需要装配行波定位装置的变电站。实际系统的配置分析和仿真结果表明提出的优化配置方法实现简单,可以在不影响定位可靠性的前提下减少定位装置的布点,从而有效节省投资。

The existing optimal configuration method for traveling wave fault location devices （TWFLD） is complex, and difficuh to operate, an optimal configuration method is proposed in this paper. By analyzing the relationship between the length of the fault line and the difference between the shortest paths from any substation to the substations at both ends of the fault line, all the substations at each side of the fault line are respectively formed two collections, the minimum sharing set is determined through the collections at each fault situation, and then the optimal configuration scheme can be determined. Placement analysis and simulation results of an actual power grid show that the optimal configuration method presented in this paper can be realized simply and reduces the number of TWFLD without influence on the reliability of fault location, so it is able to save investment effectively.