Estudo do comportamento da tensão de uma rede de distribuição de energia elétrica de média tensão devido a conexão de minigeradores fotovoltaicos

Abstract

The generation of solar energy in Brazil through micro and mini photovoltaic generators has been growing since the approval of the Electric Energy Compensation System by the National Electric Energy Agency in 2012, through micro and mini distributed generation, however the number of connections is still reduced compared to other countries that already use this energy source for a longer time. Therefore, this work makes a study of the voltage behavior of a system adapted from a medium voltage electricity distribution network, computationally simulating scenarios of connections of mini photovoltaic generators to the grid, following data from Australia, which has a larger number of connections and a possible scenario. The computer simulation program used is OpenDSS, which is an excellent software to perform power flow in a determined period of time and has elements that help in the distributed generation activity. The results show that only one of the scenarios was the violation of electrical voltage of the system buses, to mitigate the voltage rise, three strategies were used and they were effective, causing the voltage levels to be within the limits imposed by the Module 8 of ANEEL's Electricity Distribution Procedures.