Application of Hilbert-Huang and Stockwell Transforms to Fault Location in Transmission Lines Using Traveling Wave Theory

Abstract

This paper presents an application and comparison between two techniques, the Hilbert-Huang and Stockwell transforms, to extract the characteristic data from two terminals and use them with the traveling wave theory for fault location in a 200 km long transmission line between two voltage sources. The MATLAB/Simulink® software was used to simulate different fault conditions and analyze the voltage signals, through the programmed algorithm, to calculate the fault location. The results obtained have shown the efficiency in using the techniques to identify the traveling wave arrival time and locate the fault with a low computational cost, considering all types of faults. Different fault locations and fault resistances were considered.