基于希尔伯特-黄变换的高压输电线路行波故障定位研究

Research on Fault Locating Algorithm for HV Transmission Line Based on Hilbert-Huang Transform

把希尔伯特-黄变换用于故障定位中的暂态行波信号处理,详细介绍了希尔伯特-黄变换的基本概念和原理,行波故障定位的原理及定位信号的选取。利用希尔伯特-黄变换对信号进行滤波,消除行波在传播过程中由于衰减和畸变所引起的高频振荡和其它一些噪声,仿真结果表明,所提方法有效且具有很高的精度。

This paper introduces fault location method using digital signal processing algorithm based on Hilbert-Huang transform, discusses its basic concept and theory, and analysis the principle of traveling wave fault location and selection of location signal. The Hilbert-Huang transform is used to filter traveling wave noises from transmission attenuation and distortion. The simulation results show that the proposed method is effective and possesses high location accuracy.