Proposta metodológica para o cálculo do custo marginal de expansão do sistema interligado nacional

Abstract

This presents a new methodological approach to calculate the Brazilian power system’s marginal cost of expansion, derived from optimization problems’ solution. The methodology consists in solving a mixed integer problem that models the energy market and the system’s expansion decisions and then calculate the marginal cost of expansion from the linear relaxation of the integer variables. Furthermore, since it is about planning decisions, it was decided in this work, to develop a deterministic model, while the models widely used in the Brazilian electric system are stochastic.