Design and Analysis of a Novel Fuzzy Logic Controller Based AFLL Topology for Grid Connected PV System
Keywords:
Advanced frequency locked loop (AFLL), maximum power point tracking (MPPT), power quality (PQ), photovoltaic (PV), voltage source converter (VSC).Abstract
This research provides an advanced frequency locked loop (AFLL) architecture for grid-connected PV systems that is based on fuzzy logic control (FLC). The FLC's interlinking with AFLL offers grid-connected PV systems both advantages. One artificial intelligence technology that offers fast reaction to system disruptions is the FLC. The proposed grid-connected PV system's performance is enhanced by the FLC-AFLL control architecture across a variety of disturbances, including polluted grid conditions, fault conditions, and load shifts. This suggested design would lessen harmonics in grid-connected PV systems and decrease load current disturbance. By injecting/absorbing active and reactive energy into grid-connected PV systems, FLC-AFLL control architecture enhances power quality in a long-distance radial transmission system. The entire proposed system performance is tested by using MATLAB/SIMULINK software.
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