Wavelet-based one-terminal fault location algorithm for aged cables without using cable parameters applying fault clearing voltage transients

Considering characteristics of arc on travelling wave fault location algorithm for the transmission lines without using line parameters

“…L l is distance between fault point and near terminal. The travelling wave propagation speed is v which can be calculated as: (10) Using wave speed obtained by (10) L l can be calculated by: …”

“…Proposed method uses voltage and current samples which are taken from both ends of the line. Proposed algorithm in [10] calculates accurate location of the fault using voltage traveling waves taken from one terminal of the cable lines independent of line parameters. Usually, in all travelling wave-based fault location algorithms, it is neglected from arc characteristics.…”

Localização de faltas em sistemas elétricos por meio de análise de assinaturas magnéticas.

“…Esse método de detecção tem sido amplamente estudado, a fim de aprimorar a precisão do algoritmo. Para essa tarefa, algumas abordagens tem sido propostas na literatura; dentre elas métodos baseados em: Transformada Wavelet (TW) (5,22,23), Transformada Hilbert-Huang (24), Filtro Kalman (25,26), além de métodos que associam TW a outras técnicas de processamento de sinal, como Análise de Componentes Principais (27) e Redes Neurais Artificiais (27, 28).…”