This paper presents a comprehensive analysis of single-phase grid-connected inverter technology, covering fundamental operating principles, advanced control strategies, grid integration requirements, and power quality considerations. . There is a rapid increase in the amount of inverter-based resources (IBRs) on the grid from Solar PV, Wind, and Batteries. Villegas Pico. . Grid-connected PV inverters (GCPI) are key components that enable photovoltaic (PV) power generation to interface with the grid. Their control performance directly influences system stability and grid connection quality. It's a device that converts direct current (DC) electricity, which is what a solar panel generates, to alternating current (AC) electricity, which the electrical grid uses.