Ubicación de fallas en líneas de transmisión eléctrica basado en el análisis de señales transitorias

Abstract

A technique that allows the fast and precise location of various types of failure along transmission lines and the importance of such location is addressed in this work, this is done by analyzing the signals that occur immediately after of the occurrence by means of the discrete Wavelet transform technique. For this, the detail coefficients of the voltage and current signals are obtained, as the case may be, testing various mother Wavelets to find the one that allows a calculation of the fault distance with the least percentage error. An IEEE type system of 39 bars is analyzed, which is made up of short, medium and long lines in order to carry out an analysis of the advantages and limitations of the proposed methodology, as well as the aspects that must be considered for accurate distance results. of failure including the calculation of the propagation speed, the choice of the calculation mode and choices that are specific to each line and their inherent characteristics. The use of the Clarke transform is also proposed, which allows a modal analysis of failure events.