Novel DSOGI-Based SRF Controller for Power Quality Enhancement in Three-Phase-Grid-Connected Dynamic Voltage Restorer Integrated With Photovoltaic System
Year: 2025
Type: article
Abstract: : This paper presents a DSOGI-based SRF control methodology that regulates load voltages using a dynamicvoltage restorer (DVR) with the integration of photovoltaic (PV) systems under severe grid voltage disturbances.The primary objective of the proposed controller is to provide a synchronization signal from the distorted gridvoltages to the control methodology for the generation of reference signals. A DSOGI-based phase-locked loophas been employed over the conventional phase-locked loop in the proposed controller. The photovoltaic-basedsystem has been attached to the dc link of the DVR for voltage regulation of DC link. Simulations under MATLAB/Simulink platform are conducted to analyze controller performance under severe grid conditions such as voltagesags, voltage swells, and voltage harmonics. Moreover, controller efficiency has been verified under sudden dualvoltage sags. The analysis of the PV-based DVR with the proposed controller points towards the efficiency of theproposed controller in regulating load voltages for the normal operation of consumer loads. The total harmonicdistortions have been reduced significantly, complying with the IEEE standards for power quality.Cite this article as: R. Mallajoshula and I. E. S. Naidu, “Novel DSOGI-based SRF controller for power quality enhancement in three-phase-grid-connected dynamicvoltage restorer integrated with photovoltaic system,” Electrica, 25, 0067, 2025. doi: 10.5152/electrica.2025.24067.
Authors: Ravikanth Mallajoshula, I. E. S. Naidu
Institution: GITAM University
Language: English
Topic: Power Quality and Harmonics
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4407370751