An Assessment of Power Regulation Strategy and Fuzzy Controller for a Grid-Interfaced Solar Photovoltaic System

The emphasis of this study is to provide a fundamental real power regulatory control scheme that can effectively deliver frequency control function to a single-phase grid, without the reliance on an energy storage system. The reserve share of power is supplied to the real power regulation controller by the power regulation system. The appropriate fraction can be used to determine the quantity of reference power that can be extracted from the PV panels and fed to the grid. Using a PI Controller will result in slower system responsiveness due to the proportional and the combined derivative and integral controllers. Therefore, a fuzzy logic controller used instead of a PID controller to achieve faster response time. The power quality of these controllers is superior to that of traditional controllers, resulting in improved system performance. In the MATLAB/SIMULINK environment, the controller’s performance on the system is modelled and simulated.