Browsing by Author "Guerreiro, M."
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- Transmission lines protection based on the current eigenvalues differential conceptPublication . Pires, V. Fernão; Guerreiro, M.; Fortunato, Carlos; Martins, L. SousaThis work presents a new approach for a current differential protection of the transmission lines. The proposed approach is based on the Clarke-Concordia transformation and principal component analysis. First the acquired current signals are transformed into “αβo” components by applying the Clarke-Concordia transformation. This allows obtaining typical patterns. To identify these patterns a principal component analysis is performed. Several tests under different fault conditions were performed. The obtained results allow verifying the effectiveness of the proposed approach.