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Andressa P. Oliveira
Colegiado de Engenharia Elétrica, Universidade Federal do Oeste da Bahia-UFOB, Centro Multidisciplinar de Bom Jesus da Lapa-BA; Doutoranda do Programa de Pós-Graduação em Engenharia Elétrica, Universidade Federal da Bahia- UFBA, Salvador-BA
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Fernando A. Moreira
Departamento de Engenharia Elétrica, Universidade Federal da Bahia-UFBA, Salvador-BA
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Alessandra F. Picanço
Departamento de Engenharia Elétrica, Instituto Federal de Educação, Ciência e Tecnologia da Bahia-IFBA, Salvador-BA
Keywords:
Fault diagnostics, fault location, variational mode decomposition, traveling wave theory, Teager energy operator, transmission lines
Abstract
This paper presents the application of the variational mode decomposition associated with the Teager energy operator to extract the characteristic data from two terminals for fault location in transmission lines using the traveling wave theory in a test system with 200 km long transmission line between two voltage sources. The simulation was performed using the MATLAB/Simulink® software, reading voltage and current signals, considering all types of faults, the variation of the occurrence location, fault inception angle and fault resistance. The numerical and graphic results proved the low dependence of the fault resistance in the estimation of the distance from the local of occurrence to the main reading terminal and showed high accuracy for the methodology used.
