Thevénin Model Based on Look-up Table to Emulate PV Panels in Power Electronics Simulation

Photovoltaic (PV) systems have become an attractive solution for the growing energy demand. Nevertheless, this technology requires improvements in the efficiency, design and dynamic response of PV inverters, reducing operational costs and expand the use of PV systems. For this purpose, modeling and simulation of PV systems are fundamental for development and analyses of techniques, focusing on improve the system response, optimize the design and reduce power losses. Moreover, a wide range of PV panels technologies are available on the market for which the manufacturers usually inform parameters for specific operational conditions. Consequently, the ability to perform simulations of PV systems under different conditions, using the parameters informed by the manufacturers, is an important issue. Therefore, this work proposes a Thevénin model-based on look-up table, which emulates a PV panel in power electronics simulations under different operational conditions, with adjustable error and reduced computational effort.