电力系统行波测距方法探究

Method of Traveling Wave Distance Measurement in Power System

精准地定位故障点,快速修复永久和瞬时故障,以保证电网的稳定和安全运行,维护电网的经济效益,对电力系统意义重大。讨论了行波测距算法及研究现状,分析了行波的获取、波头的检测,波速对测距的影响、故障波形的构造及计算步骤等。相关研究结果表明,行波故障测距在电力系统中有广泛的应用前景,是今后输电线路故障定位领域的重要发展方向。

It is very important for power system to locate fault points accurately and repair permanent and transient faults quickly,so as to ensure stable and safe operation of power grid,and maintain economic benefits of power grid.The algorithm and research status of traveling wave are discussed comprehensively. The acquisition of traveling wave,the detection of wave head,the effect of wave speed on ranging,the construction and calculation steps of fault waveform are reviewed. The related research results show that traveling wave fault location has wide application prospects in power system,becoming an important development direction in the field of transmission line fault location in the future.