Energy performance modeling of a stand-alone PV system using real meteorological data

The paper evaluates energy performance of stand-alone PV systems. The main parameters of the system are obtained by proper models based on real meteorological data. Recommendations are derived for stand-alone PV-systems with boost charge controller based on the performance evaluation. MATLAB Simulink models are developed and long period operation is simulated for PV-systems with common MPPT algorithms and without MPPT. The annual increase of the energy output of the system was found to be 19%, if a MPPT algorithm is implemented. The derived guidelines and results can be further used for the decision-making process of PV-standalone system development.