Dimensionamento de um sistema fotovoltaico conectado à rede a partir das características de inclinação e orientação dos módulos fotovoltaicos
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2016-06-03
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Universidade Federal de Goiás
Resumo
This study aimed to evaluate the design of a grid-connected photovoltaic (PV) system
according to the positioning of the modules which compose the generator depending on tilt
and azimuth angles in Goiânia, Goiás. In that purpose, a review of the literature was carried
out concerning the main methods of inverter sizing ratio analysis applied to grid-connected
PV systems. Starting from an hourly average climate measurement database from Goiania, an
algorithm was developed to search for the ideal local inverter sizing ratio, considering the
use of polycrystalline module technology. The parameters used in the analysis were provided
by the manufacturers of the componentes used in the grid-connected PV system in installation
at the Electrical, Mechanical and Computational Engineering School (EMC) from Federal
University of Goias (UFG), which nominal power is 33.84 kWp. An inverter sizing ratio band
of 0.54 to 0.77 was obtained for a -90° to +90° azimuth angle variation and 0° to 90° tilt
angle variation. The potential of financial indicators improvement was verified and it was
estimated a potential reduction in the levelized cost of energy above 10% comparing the
inverter sizing ratio improved system to an unitary inverter sizing ratio system.
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PAIVA, G. M. Dimensionamento de um sistema fotovoltaico conectado à rede a partir das características de inclinação e orientação dos módulos fotovoltaicos. 2016.105 f. Dissertação (Mestrado em Engenharia Elétrica e da Computação) - Universidade Federal de Goiás, Goiânia, 2016.