Experimental Evaluation of Fuzzy-Sliding Mode Control Applied to A Single Phase VSI For Photovoltaic Application

Abstract

This study investigates a Fuzzy-Sliding mode control (Fuzzy-SMC) scheme for a single-phase Voltage Source Inverter (VSI) interfacing a photovoltaic (PV) system. The suggested controller is developed to control the real and reactive power in a robust and smooth way and deal with the system parameter uncertainties and external disturbances. The stability of the obtained control laws is proved according to Lyapunov stability criterion. The effectiveness of the adopted strategy is validated through an experimental verification using a Dspace 1104 real-time implementation board. The experimental results, under different load levels, demonstrate that the Fuzzy-SMC provides enhanced transient performance and lower Total Harmonic Distortion (THD) of the output current and voltage in comparison with SMC.