Análise de contingências no sistema elétrico de potência nos cenários de cargas ZIP

Abstract

Contingency analysis is of great relevance for the planning and operation of the Electric Power System. The objective of this work was to determine rankings of critical contingencies for the IEEE-14 bus system, in order to determine the most severe system shutdowns, so that their effects can be analyzed. The rankings were elaborated by the calculation of performance and severity indexes, in relation to voltage and power, through power flow simulation, for n-1 contingency, in constant impedance and constant power load scenarios. For the simulation of the power flows, the software MATLAB®1 and ANAREDE®2. According to the contingency classifications obtained, it was found that the indices determine different contingencies as the most critical for the system, while the load model has little influence on the classification of critical contingencies.