Design and construction of photovoltaic simulator based on dual-diode model

To validate the accuracy of the proposed model, three PV modules of different types (multi-crystalline and mono-crystalline) from various manufacturers are tested. The performance of the model was evaluated against the popular single diode models. It was found that the proposed model is superior when subjected to irradiance and temperature variations. In particular, the model matches accurately for all important points of the I-V curves, that is, the peak power, short-circuit current and open circuit voltage. The accuracy of the constructed simulator was evaluated by the real module and the laboratory and simulation results indicated the high accuracy of the simulator.