Parameter Extraction of Two Diode Photovoltaic Model Using An Analytical Approach

In this study, a Two-Diode Model (TDM) is implemented for Photovoltaic (PV) modules to accurately derive PV parameters. A noteworthy contribution of this work is the introduction of a simplified current equation, necessitating the estimation of only seven parameters. Additionally, we present an effective modeling approach for the PV module based on the TDM. The extraction of TDM parameters is accomplished using the suggested analytical method. Case studies are conducted on the PWP-201 module and the R.T.C. France Solar Cell module to showcase the accuracy of the analytical method. Results from an experimental setup comprising two 40 W Poly-crystalline PV panels are also reported. The performance of the proposed analytical method for the TDM is assessed, and its consistency with experimental I-V curves and other methods is established.