This paper studies an adaptive neuro-fuzzy (ANFIS) control for a three-phase grid-connected Photovoltaic (PV) system. This study aims to improve the performances of the system, ensure a high quality of the Total Harmonic Distortion and extract the maximum power while ensuring unity power factor. Due to the complexity of the tracker mechanism and non-linear nature of the photovoltaic system, the artificial intelligence-based ANFIS method is used instead of the two PI regulation loop for grid currents. The validation and training data of the utilized neuro-fuzzy controller are obtained by simulation of the entire system with the PI controllers calculated for variation of solar irradiance. The simulation study shows that the neuro-fuzzy controller indicates significantly more enhanced performance than that of the PI controller, reveals that the active and reactive power are tracked quickly and accurately for variation of irradiance, guarantee power factor unity and ensuring lower overshoot and better total harmonic distortion (THD).
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Performance Improvement of Grid connected PV System Using Neuro-Fuzzy Controller
Semantic Scholar · 2020
Abstract
This paper studies an adaptive neuro-fuzzy (ANFIS) control for a three-phase grid-connected Photovoltaic (PV) system. This study aims to improve the performances of the system, ensure a high quality of the Total Harmonic Distortion and extract the maximum power while ensuring unity power factor. Due to the complexity of the tracker mechanism and non-linear nature of the photovoltaic system, the artificial intelligence-based ANFIS method is used instead of the two PI regulation loop for grid currents. The validation and training data of the utilized neuro-fuzzy controller are obtained by simulation of the entire system with the PI controllers calculated for variation of solar irradiance. The simulation study shows that the neuro-fuzzy controller indicates significantly more enhanced performance than that of the PI controller, reveals that the active and reactive power are tracked quickly and accurately for variation of irradiance, guarantee power factor unity and ensuring lower overshoot and better total harmonic distortion (THD).