Análise dos impactos técnicos e econômicos provenientes da expansão da minigeração distribuída em redes de distribuição : um estudo de caso na distribuidora de eletricidade do estado de Mato Grosso

Abstract

The expansion of Distributed Generation in Brazil is a reality. When connected in small quantities, the modality presents an insignificant impact. However, the potential advancement of distributed generation in large projects, such as "solar farms," produces impacts on the distribution grid, resulting in an intensification of investments by the distributor to maintain the distribution grid at appropriate operation levels. Within this context, this work aims to perform a technical analysis of a distribution grid involving a feeder located in a rural area of the state of Mato Grosso, considering the operating conditions of the grid before and after the insertion of the mini-generation project, aiming to identify the technical and economic impacts of this scenario for the energy distributor in the concession area. The choice of this arrangement is justified by the mini-generation modality providing a greater potential for generation in kilowatts injected into the grid. Therefore, the expansion of this modality may imply a saturation of the capacity to absorb and accommodate this generation. In other words, at certain moments, the generation may exceed local consumption, resulting in a change in power flow and voltage profile, that is, a new model of operation for the distribution grid.