Simulation of Grid Integrated PV Array

This paper presents an easier approach for modelling a grid connected photovoltaic (PV) system using MATLAB/Simulink. The proposed model consists of a PV array, Pulse With Modulation generator, Inverter and an LC filter. Modelling of these components has been described and demonstrated in detail. The impact of solar irradiance and temperature on the overall power generation of a grid connected PV system has been studied. Control to maintain constant voltage at the inverter output and for synchronization of the output frequency with the electric utility grid, phase locked loop and regulators have been designed and modelled. The simulation method is easier and can be implemented in practice to study system performance for different conditions of temperature and solar irradiance levels.