摘要
使用行波线路故障定位方法受行波波速误差和输电线路长度误差的影响。鉴于上述问题,分析了分布式故障定位的优点,采用分布式设备在线监测线路行波波速,尽可能降低波速测量误差和输电线路长度误差的影响,从而更加准确地进行故障定位。通过分析故障分量中分相电流,基于相位差动原理对输电线路中出现故障的相和区段进行定位,将故障电流分量的相位差动与基于分布式设备的故障定位方法结合,制订利用分布式在线测速的特高压输电线路故障定位流程。
The line fault location method using traveling wave is subject to traveling wave velocity error and transmission line length error.This paper analyzes the advantages of distributed fault location.Distributed devices are used to monitor the line's traveling wave velocity on line to reduce the influence of wave speed measurement errors and transmission line length errors as much as possible,so as to locate faults more accurately.By analyzing the split⁃phase current in the fault component,the faulty phase and section of the transmission line are located based on the principle of phase difference.This paper combine the phase difference of the fault current component with the fault location method based on distributed equipment,and formulates the fault location process of UHV transmission line based on distributed online speed measurement.
作者
马波
季世超
王一帆
董心怡
陆璐
MA Bo;JI Shichao;WANG Yifan;DONG Xinyi;LU Lu(State Grid Huzhou Electric Power Supply Company,Huzhou 313000,China)
出处
《内蒙古电力技术》
2022年第4期85-90,共6页
Inner Mongolia Electric Power
关键词
分布式监测
特高压输电线路
行波故障定位
相模变换
线模分量
distributed monitoring
UHV transmission lines
traveling wave fault location
phase⁃mode transformation
aerial mode component
