Control of power converter for power quality improvement in a Grid Connected PV system

RENEWABLE energy sources are spreading due to environmental and energetic shortcomings. These systems are usually grid connected, and a power converter is the key item to connect the renewable energy sources to the grid. The power converter must be accurately designed in order to comply with grid requirements in terms of power quality and safety. This paper focuses on the design, modeling and control of power converters for power quality improvement in a grid connected Distributed Generators system. In this paper Photovoltaic is considered as DG. Control action of power converters are designed such that they can figure out with a transformer coupled grid connected system with different voltage levels of the grid. The Grid Connected Photovoltaic system in which a low voltage based PV generation system fed to grid of 25 kV and 125 kV along with the effect of irradiance on active power fed to grid is demonstrated All the simulations are carried out in MATLAB/Simulink environment and the results with priggish analysis are exhibited.