State feedback linearization control of a grid connected photovoltaic interface with MPPT

A three phase grid connected photovoltaic system is simulated. The grid connected photovoltaic (PV) interface system consists of a sine PWM inverter and its control. The control algorithm is based on state feedback linearization technique. The Matlab/SimPowerSystems simulation of the grid connected PV interface under a sudden change of environmental conditions shows the validity of the state feedback linearization technique for maximum point tracking, power factor control and total harmonic distortion in compliance with IEEE519-1992.