Análise comparativa de índices de mérito entre seis microgeradores fotovoltaicos de 270 Wp Instalados no Instituto Federal de Goiás Câmpus Itumbiara

Abstract

Now a days, in the current paradigm marked by the growth and the popularization of grid-connected photovoltaic generation, it is important to develop studies in order to know the possibilities for obtaining the best yields in the conversion of solar to electric energy, in this sense one of the possibilities is to study the positioning of the modules, main subject of the present work. In order to study the influence of the solar orientation angle and the inclination for a grid connected photovoltaic system, it was proposed to analyze a photovoltaic system installed at the Federal Institute of Goiás, Campus Itumbiara, where all six modules that make up the system present different orientations and inclinations. In this system, data were collected over during months, from August 2018 to January 2019, in order to compare the generated energy and other merit indices, such as system productivity, overall performance and capacity factor. These indices allow us to identify if a given system is working within normal range and to compare systems with different installed powers. To perform the data collection was used the online monitoring system of the manufacturer Renovigi, company where the microinverters installed in the system were manufactured. The results show the importance of photovoltaic array positioning to achieve the best possible performance.