A novel method to extract maximum power from solar panel of a grid connected phototvoltaic system using phase angle control and hysteresis current control

Categorized as one of the renewable energies, photovoltaic (PV) system has great potential due to the availability of the sun in most part of the world. This project proposes a high performance, single stage single phase inverter topology for grid connected PV systems. The proposed configuration converts the solar panel's dc power into high quality ac power for feeding into mains, while tracking maximum power from the PV array. The power transferred to the mains is controlled by using two different control strategies viz phase angle control and current control. At the same time the THD of inverter output voltage will have the values as specified by IEEE standards for grid interconnection and the frequency of generated inverter output voltage is synchronized with the grid frequency.