Advanced Control Strategies for Optimal Integration of Grid-Tied PV Systems in Active Distribution Networks

Renewable energy sources, particularly photovoltaic (PV) systems, are assuming increasing significance in order to meet future power demand. Grid-tied PV systems are receiving a lot of interest from businesses and organizations as a fossil fuel replacement. The grid-tied inverter is essential for transforming DC electrical energy from PV systems into AC electricity. This article presents a detailed analysis of inactive distribution networks with grid-connected PV inverters. A method called maximum power point tracking (MPPT) is utilized to enhance the PV system’s efficiency. This uses the Perturb and Observe approach to operate a Buck-Boost converter, a DC-to-DC converter. The DC electricity from the Buck-Boost converter is subsequently transformed into AC power using an H-bridge inverter. A battery bank is attached to the Buck-Boost converter so that it may be used in times of power shortage. A single-phase H-bridge inverter is created and developed with practicality in mind. A PIC18f452 microcontroller is used to digitally control the inverter’s switching. Closed-loop control is done using additional filtering and protective circuitry. By adjusting the grid voltage and solar irradiation, the system is also put to actual testing and verification. We can get a step closer to supplying all of the electricity we will need in the future by embracing renewable energy sources, especially grid-tied PV installations. Grid-tied inverters’ use of maximum power point tracking methods and sophisticated control schemes enhances the overall efficiency and performance of these systems. For these systems to be reliable and flexible under a variety of circumstances, practical testing and verification are essential.