Análise da aplicação do chaveamento controlado em linhas de transmissão de circuito duplo.

Abstract

The objective of this work is to evaluate the performance of the algorithm of a controlled switching method when applied to the reclosing of double circuit transmission lines. Using the ATP (Alternative Transients Program), an electric system is modeled using two different geometries of double circuit transmission lines. Simulations are done in ATP and the algorithm is applied considering the line with transposition cycles. The results are evaluated and it is verified that the chosen controlled switching method is able to identify the optimal reclosing instants of the line, except for the phases under fault. In order to overcome this limitation, a modified strategy for calculating the optimal reclosing instants was proposed. The proposed modification was tested and an improvement in the location of the optimal reclosing instants for the phases under fault was observed for some of the simulation cases.