Grid Following Solar PV Array with Inverter Control

Grid-following solar PV system using a DC–DC converter and inverter to regulate DC-link voltage and inject controlled power into the utility

This model demonstrates a grid-following solar PV system integrated with a DC–DC converter and a grid-connected inverter. The solar PV array supplies power to a regulated DC-link through the DC–DC converter, ensuring stable operation under varying conditions.

A closed-loop control strategy is employed to maintain the DC-link voltage at the desired level. The inverter operates in grid-following mode, synchronizing with the utility grid and injecting power accordingly. Grid voltage is assumed to be stiff, eliminating the need for grid-forming control.

The system enables controlled power transfer from the solar PV array to the grid. This model is suitable for studying DC-link regulation, inverter control, and PV–grid integration. It can be easily extended to include MPPT, protection logic, or different power ratings.