PV integrated single-phase dynamic voltage restorer for sag voltage, voltage fluctuations and harmonics compensation

Toufik Toumi (University of Sciences and Technology of Oran)
Ahmed Allali (University of Sciences and Technology of Oran)
Othmane Abdelkhalek (University of Tahri Mohammed Bechar)
Abdallah Ben Abdelkader (University of Tahri Mohammed Bechar)
Abdelmalek Meftouhi (University of Tahri Mohammed Bechar)
Mohammed Amine Soumeur (University of Tahri Mohammed Bechar)

International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 11, No 1: March 2020

This document proposes a photovoltaic (PV) based single-phase dynamic voltage restoration (DVR) device, it eliminates both sag and swell voltage and compensates for power. The proposed system requires a power source to compensate for the sag/swell voltage. This system has found a simple topology for the DVR that uses PV with two DC-DC boosts converters as the DC power source for the dynamic voltage conservator. The DC/DC boost converter powered by the PV generator is used to increase the voltage to meet the DC bus voltage requirements of the single-branch voltage source inverter (VSI). This system uses renewable energy; saves energy accordingly and supplies power to critical/sensitive loads. The control method used in this work is a Sliding Mode Control (SMC) method and relies on a phase locked loop (PLL) used to control the active filter. The effectiveness of the suggested method is confirmed by the MATLAB/Simulink® simulation results and some prototype experiments. These results show the capacity of the proposed DC link control.