Geração de energia elétrica no Nordeste brasileiro: aplicação de método de dimensionamento para sistemas híbridos renováveis

Abstract

This paper discusses the generation of electricity from renewable sources, considering the intermittence of wind and solar sources, seen as an impediment to a greater participation of these sources in the energy matrix; also analyzes the complementarity between these sources as an alternative to reduce generation variability in a hybrid system. As for the methodological procedures, it is an explanatory research, developed from a bibliographical and documentary survey, allowing the analysis of the variability of the renewable sources, with the purpose of eliminating the intermittent perceived by the electric system. For this, using a real wind generation data and a computer simulation for solar generation, a set of information is developed that allows the sizing of a hybrid generation proposed for installation in the city of Brotas de Macaúbas / BA. It is proposed the use of biomass generation as an additional source to the proposed hybrid system, and a method of sizing the optimum capacity installed for each system source was applied, based on a graphical and analytical evaluation of the data set obtained by the research. Finally, the obtained result shows that the combination of the sources in a hybrid system allows the reduction of the value of the energy generated when compared to the individual generation of each one of the sources, besides reducing the intermittence caused to the electrical system. The value of energy is compared with international references related to generation costs, including when considering socio-environmental aspects.