Solar PV grid connected system using Phase Lock Loop Synchronization and SPWM technique

In this paper a phase lock loop-based grid-tied solar inverter is designed and verified in MATLAB. Here PLL has been utilized so as to synchronize the yield voltage of inverter with framework voltage [3]. Thus, to achieve the same a sinusoidal reference is generated from PLL Output which generates PWM signal which is controlled by grid voltage [7]. This paper proposes a simulation model of the Solar PV grid connected system (closed loop) using sinusoidal pulse width modulation and Phase lock loop for grid synchronization. The proposed scheme is verified in MATLAB.