• K.Revathi Ramana Kumar
• K. Padma

In this paper the issue of control strategies for single-stage photovoltaic (PV) Grid connected inverter is addressed. Two different current controllers have been implemented and an experimental comparison between them has been made. A complete control structure for the single-phase PV system is also presented. The main elements of the PV control structure are: - a maximum power point tracker (MPPT) algorithm using the incremental conductance method; - a synchronization method using the phase-locked-loop (PLL), based on delay; - the input power control using the dc voltage controller and power feed-forward; - and the grid current controller implemented in two different ways, using the classical proportional integral (PI) and the novel proportional resonant (PR) controllers.

Photovoltaic, Mppt algorithm, Boost converter, H- Bridge Inverter, PLL Structure, PR controller, PI controller, lcl filters.

"Single stage single phase photovoltaic system to the grid", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 11, page no.c381-c392, November-2021, Available :http://www.jetir.org/papers/JETIR2111255.pdf

"Single stage single phase photovoltaic system to the grid", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 11, page no. ppc381-c392, November-2021, Available at : http://www.jetir.org/papers/JETIR2111255.pdf