Improve the Performance of a Grid Connected Photovoltaic System

This book proposes a new control scheme of ANFIS technique to control the performance of photovoltaic system connected to grid. The main components of the studied system are solar arrays connected through a DC bus to a grid side inverter. Due to the instantaneous changes of solar irradiance and temperature, maximum power point tracking (MPPT) is integrated in the inverter control. The energy generated by the grid photovoltaic system is sent to the grid. This is accomplished through an efficient DC/AC conversion where the MPPT is integrated in the inverter to control active and reactive power level injected to the grid. A hysteresis control technique is proposed to generate the required gate signals for grid side inverter, also helps to maintain proper synchronization with grid. This proposed system with both Fuzzy and ANFIS controller are implemented and tested in MATLAB, and compared the performance with these two techniques.