基于同步相量测量技术的输电线路故障测距综述

A survey of fault location on transmission line based on synchronized phasor measurement technique

随着广域测量系统WAMS(Wide Area Measurement System)的发展,同步相量测量技术为输电线路的双端故障测距提供了新的平台。在简介WAMS系统基本原理的基础上,首先介绍了基于双端同步数据的线路参数在线估算;其次总结了现有基于双端同步数据的各种故障测距算法,按采用的数据量对各种方法进行了分类比较,并对其特点及应用效果作了一定的评价;最后介绍了目前测距算法在实际电网结构中的应用情况。

With the development of wide area measurement system, the synchronized phasor measurement technology provides a new platform for the two-terminal fault location on transmission line. After introducing the basic principle of WAMS, this paper introduces the parameters on-line estimation based on the synchronous data. Then it concludes the various algorithms based on the two-terminal synchronous data, classifies and analyses the different methods by the amount of data, and evaluates their characteristics and application effect. At last, the algorithms applied in the power system are introduced.