Modeling and Simulation Based Approach of Photovoltaic System

As the Photovoltaic module exhibits non-linear V-I Characteristics, which are dependent on solar Insolation and environment factors, the development of an accurate power electronic circuit oriented model is essential to simulate and design the photovoltaic integrated system. A circuit based model of photovoltaic array (PV) suitable for simulation studies of solar power system is proposed in this paper. The model is realized using power system block set under MATLAB/SIMULINK. Detailed modelling procedure for the circuit model with numerical values is presented. The simulator is verified by applying the model to 36 W PV modules. The proposed model was found to be better and accurate for any irradiance and temperature variations. The proposed model can be very useful for PV Engineers and expert who requires a simple, fast and accurate PV simulator to design their systems.