Modeling & Simulation of Photovoltaic System Connected to Grid using Matlab

This paper represents PV model which is connected to the grid having maximum power point tracking (MPPT) by the use of MATLAB/Simulink software. It also gives the information about the behaviours of the photovoltaic (PV) model and its characteristics. The PV system connected to Grid comprises a photovoltaic array with MPPT, a distribution network, a control system and a load. The control system part of PV system connected to Grid consists of two operative controls. One of them is the current control which regulates the current at the PCC (point of common coupling). So, it achieves power factor control as well as regulates dc link voltage. The other one is the voltage control which is employed to achieve the PV output voltage, so that maximum power point can be tracked smoothly and quickly of PV array. MPPT improves the efficiency of the solar energy of PV panel effectively. P&O (Perturb and observe) technique is used in this paper to attain the obtained results. The proposed simulation model and obtained results shall provide the depth understanding of grid connected photovoltaic system.