Estudo de violações de fluxo de potência ativa em sistema teste modificado com os dados fornecidos pelo plano decenal de expansão de energia 2032

Abstract

The Brazilian population growth rate will be 5.56% over a 10-year period, contributing to the increasing demand for power. Studies conducted by the Decennial Plan for Energy Expansion 2031 show a perspective of a 3.5% annual rise in electric load consumption in Brazil, indicating the need to expand the connected energy sources in the current National Interconnected System (SIN). In line with the presented data, it can be inferred that it is of utmost importance to analyze the best way to make these connections. This work will use the ANAREDE software, simulating the STB 107 test system. Starting from the base case, the load data for the bars experienced an average annual increase of 3.5%, simulating load growth until 2032. Simultaneously, new hydroelectric plants were connected, built in the South, Southeast, and Mato Grosso regions, at the bars geographically closest to these constructions, using data provided by the Decennial Plan for Energy Expansion 2031 and employing the linearized power flow method. For transmission lines that exceeded their power flow limits, the connection of new lines to the test system was proposed. This methodology proved effective in correcting all cases of transmission lines with exceeded power flow limits. However, in solving cases where the operational limits of substations were exceeded, it was observed that more than two iterations occurred at these points, demonstrating the inefficiency of the presented methodology for these points.