Author Name
Govind Kumar Maurya, Anil Kumar Yadav, Gunjan Yadav, Piyush Singh, Naveen Kumar
Abstract
The integration of solar photovoltaic (PV) systems with utility grids poses challenges in maintaining voltage stability, reducing harmonics, and improving power quality. Conventional PI controllers and passive filters, such as LCL filters, have been widely used for regulating voltage source inverters (VSIs) and mitigating harmonics. However, these methods often face limitations in handling system nonlinearities, dynamic load variations, and uncertainties in solar irradiance. Fuzzy Logic Control (FLC), as an intelligent and adaptive technique, provides an effective alternative by eliminating the need for an accurate mathematical model and offering robustness under varying operating conditions. This paper reviews the application of fuzzy logic controllers in grid-connected PV systems, particularly for inverter control, maximum power point tracking (MPPT), harmonic reduction, and power factor correction. A comparative analysis is presented between conventional PI control, LCL filter-based