Modeling and Simulation of MPPT Controlled Solar System Integrated with Grid

The world is becoming more and more dependent on renewable energy resources. Presently we have two major renewable energy resources including wind and solar. This project is an effort to make solar energy more efficient and controllable. The model is consists of solar-cell array, MPPT controller, dc-dc converter and grid interface inverter. The MPPT is a Power control strategy which helps to extract the maximum power. To obtain the output of photovoltaic power generation system at the maximum power output MPPT tracker control is an essential tool. The proposed model is having a 200-kW solar array connected to a 25-kV grid via a single 3-phase voltage source converter and two DC-DC boost converters. The ?Perturb and Observe? technique is implemented to control the MPPT controller by means of a embeddable code in MATLAB Function block. The VSC inverter connected with grid transfers the energy drawn from the PV array to the grid by keeping common dc voltage constant. The simulation results show the performance and dynamic behavior of the MPPT controlled PV system.