电网技术2011，Vol.35Issue(3)：216-220,5.
基于能量比法的输电线路行波故障测距
Energy Ratio Function-Based Traveling-Wave Fault Location for Transmission Lines
韩志锟 1饶曙勇 1姜玉山 1王世钊 1刘嘉婧 1卢毅1
作者信息
- 1. 东南大学,电气工程学院,江苏省,南京市,210096
- 折叠
摘要
Abstract
The crux of traveling wave fault location for transmission lines is the identification and location of the wave front of fault generated traveling wave. To implement accurate fault location, a new signal processing method is utilized, i.e., from the viewpoint of traveling wave energy the fault generated traveling wave is processed by the energy ratio function obtained from time-window continuous calculation, thus the time-delay of wave front can be calculated and fault location is implemented. The influences of different time-window widths on location accuracy is researched and on this basis rational time-window is chosen for the calculation of energy ratio, meanwhile the accuracy of fault location by energy ratio under complex environmental interference is analyzed. Processing results of ATP/EMTP simulation data show that the proposed method is accurate and effective, and the calculation is simple, convenient and rapid, besides, it possesses satisfied anti-interference ability in the environment with low S/N ratio.关键词
能量比/行波/故障测距/时间窗/干扰Key words
energy ratio/ traveling wave/ fault location/ time window/ noise分类
信息技术与安全科学引用本文复制引用
韩志锟,饶曙勇,姜玉山,王世钊,刘嘉婧,卢毅..基于能量比法的输电线路行波故障测距[J].电网技术,2011,35(3):216-220,5.
