Photovoltaic model with MPP tracker for standalone / grid connected applications

In this study, a novel solar power plant model is proposed. The model is implemented using MATLAB/SIMULINK software package. Perturb and Observe (P&O) algorithm is used for MPP tracker implementation. The dynamic behaviour of the proposed model has been validated by using Sharp´s NUS0E3E and Lorentz´ mono-crystalline modules in different solar radiation and temperature conditions. Good agreement between the outcomes of the model and the experimental data was achieved. The output characteristics of the PV module under different solar irradiance and temperature are nonlinear. Furthermore, the solar irradiation is unpredictable, which makes the maximum power point (MPP) of the PV module change accordingly. Therefore, a maximum power point tracking (MPPT) technique is needed to operate the PV module at its maximum power point. The developed simulation offers a novel teaching and training tool for undergraduate degree program on renewable power systems.