Análise do sobredimensionamento de inversores instalados em sistemas fotovoltaicos em microgeração

Abstract

This TCC evaluated the performance of residential photovoltaic systems connected to the grid. Different powers, changes in solar orientation and different inverter sizing factors were used. The energy generation and the impacts caused by the proposed variations were analyzed. For the development of the work, a location was defined that served as a basis for the collection of climatic data used in the calculations and, based on a survey obtained at ANEEL, the choice of the three most homologated powers in the region in the base year of 2022 was carried out. From this, sizing was carried out for different solar orientations and clipped and non clipped systems to verify the performance in energy generation of each system. From each sizing, the analysis of theoretical electric generation was carried out, being possible to verify the impacts of oversizing of inverters used in residential microgeneration projects and the impact of solar orientation. In addition, the leveled cost of energy LCOE was carried out as a way of comparing the financial impacts caused in relation to the changes in each system. As a conclusion, it was observed that the north orientation is the most suitable for photovoltaic systems, and that oversizing photovoltaic inverters up to their maximum limit is not a rule that can lead the system to a better efficiency. [resumo fornecido pelo autor]