Power Transmission and Interaction: The primary function of a grid-connected inverter is to convert DC to AC and connect to the grid, enabling power transmission. The operating principles involve several aspects: Energy Conversion Process: Under sunlight, PV panels generate DC electricity. . An inverter is one of the most important pieces of equipment in a solar energy system. 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. Grid-tie inverters are used between local electrical power generators: solar panel, wind turbine. . Overall, a grid-connected system works in different operation modes depending on the control switch states, which can be guided locally through the inverter or remotely through an operator (Yang et al.
