Avaliação da geração de uma usina híbrida eólico-fotovoltaica no estado do Rio Grande do Norte

Abstract

This study objectived to evaluate the generation of a wind-photovoltaic hybrid plant in the state of Rio Grande do Norte based on the methodological proposal developed by the Energy Research Office - EPE. Considering a wind farm with a capacity of 30 MW installed at the study site, the power generation of a standard photovoltaic solar plant of 1,054 MW was combined in this generation in staggered proportions up to the power of 10.54 MW. Two base cases were generated for comparison: a photovoltaic plant with a fixed structure and another plant with a single-axis solar tracking system. The results obtained in the simulations were power values using the SAM software and OFFICE package worksheet from anemometric and solarimetric data of energy resource prospecting stations registered at 10 minute intervals for one year of study. As the overlap of power generation could not exceed the flow limit equivalent to the installed capacity of the wind farm, the contingency of the generation would occur by the cut of the production of electric energy coming from the photovoltaic solar power plant. It is concluded that the complementarity occurs all year round, but between the months of November and May there is a greater use of photovoltaic energy due to the smaller wind profiles. The similarity from the point of view of energy utilization (injection versus cut) in the two types of structures of simulated solar power plants has also been proven.