A comparative study of four methodologies for parameter estimation in photovoltaic cells

To assess the energy efficiency of a photovoltaic device, a precise extraction of the electrical parameters from its equivalent circuit is essential to comprehensively describe the curve representing its current-voltage characteristic. In this context, the present study provides a comparative analysis of four widely employed methods in the literature for identifying the single diode model. Of these four methods, two are analytical, while the other two involve iterative approaches. The assessment of each method's performance relies on comparing its results with experimental data. Criteria such as mean square error and absolute error are also introduced to evaluate the inherent precision of each method.