Método evolutivo para seleção de contingências baseado em índices de desempenho aplicado na construção da região de segurança dinâmica

Abstract

This study proposes a method of contingency screening applied in the dynamic security region assessment, exploiting the results of the time domain simulations employed in this kind of assessment. The method is based upon the behavior of the contigencies’ performance indices along the evaluated operation points to verify the relevance of a contingency in the given operation condition and infer if it could be removed from de security region assessment. The applicability and the efficiency of the evolutionary method proposed was tested on the New England network model and the Brazilian Interconnected Power System network model. It was analyzed which parameters and operation conditions influences in the results and performance of the proposed method and some reference criteria were shown. The analysis was performed using ORGANON, a computer program used by the Brazilian ISO in real-time security assessment through security regions.