Comparison of solar panel models for grid integrations studies

Photovoltaic systems are highly dependent on climatic conditions in which they are submitted. The incident solar irradiance and temperature are the main factors impacting on the power generated by a solar panel. This paper presents three different models of a solar panel and compare, through simulations, their accuracies and efficiencies, and also shows the advantages and applications of each model. Simulations for each model connected to the grid were also made through a controlled inverter. This inverter keeps the voltage at the terminals of the panel in a constant value equal to its maximum power point, provided by the manufacturer. In the end, it is possible to see that two of the presented models have almost the same behavior while the third one has some discrepancy.