At present , all the existing fault location methods for hv transmission lines can be classified into two main types : travelling waves location and fault analytical location 目前高压输电线路故障测距方法主要分为两类:行波法和故障分析法。
When faults occur in the transmission line , locating the fault accurately and timely is propitious to eliminate the fault and restore power supply 高压输电线路发生故障时,及时准确地测量出故障位置有利于快速排除故障、恢复供电,对电力系统安全可靠运行有重要意义。
In this article , a new design scheme of the fault locator for hv transmission lines is presented , which can realize both travelling waves location and fault analytical location 本文设计了一套高压输电线路新型故障测距装置,同时为行波法和故障分析法的实现提供了硬件支持。
With the accomplishment of high voltage network and connection between the grids , the faults of high voltage transmission line threaten the power systems " security and stability seriously 随着超高压电力系统的构成,大电网之间的互联,高压输电线路的故障对电力系统的安全运行构成严重威胁。
Secondly the present fault location on hv transmission network has been commented on . tree fault location methods based on the power frequency fault data of two - terminal are proposed 本文其次对现有高压输电线路故障定位方法进行了综合评述,在此基础上提出了三种基于双端数据的工频故障测距算法。
With the rapid development of the power cause , the voltage degree of the power transmission increases continually , the extra - high voltage ( ehv ) and ultra - high voltage ( uhv ) transmission lines appear in succession 随着电力事业的快速发展,输电电压的等级不断提高,相继出现超高压和特高压输电线路。
As the important part of relay protection devices , the high - voltage transmission line auto - reclosing function acts as the crucial role in ensuring system safety , stability and economical running 高压输电线路自动重合闸功能作为电力系统继电保护装置保护功能的重要组成部分,它在保证系统安全、稳定和经济运行等方面起着非常重要的作用。
With the development of computer communication technology and the wide application of microcomputer - based protection devices with electric power system , it is possible to locate high - voltage transmission line faults precisely 随着计算机通信技术的发展和微机保护装置在电力系统中的广泛应用,实现高压输电线路故障的准确定位已经成为可能。
In this thesis , the fault location algorithms of hv transmission line are evaluated at first , then the factors that affect the accuracy of the fault location are analyzed , and the proper solutions are presented 本文首先对现有高压输电线路故障定位方法进行了综合评述,在此基础上对造成稳态故障测距误差的一些尚未获得满意消除的因素进行了深入的探讨,并提出了相应的解决方法。
When faults occur in the transmission line , locating the fault accurately and timely is propitious to eliminate the fault and resupply power . the exact fault location of the transmission line is fundamental to ensure a proper operation of the system 高压输电线路发生故障时,及时准确地测量出故障位置有利于快速排除故障、恢复供电,因此,故障测距对电力系统安全可靠运行有重要意义。