Photovoltaic model for circuit simulation

This paper looks at the performance of model of photovoltaic modules. This paper presents the photovoltaic panel model obtained by the identification method on the basis of measured data. The obtained model is applied in an analog-digital simulator that provides an simulations as a functional circuit model with numerical algorithms. The constructed model results from the nonlinear form of Norton model and is further used for the model performance optimization. This approach can be has its advantages, which are discussed in paper. The final model regards the solar radiation and is valid for a particular panel and temperature changes. The final constructed model is experimentally tested both on the level of simulation and the real measurements. The article also contains the analysis of implemented PV panel model errors. These results can be useful in designing of photovoltaic systems with maximum power point tracking.