http://www.iaeme.com/IJEET/index.asp 289 editor@iaeme.com International Journal of Electrical Engineering and Technology (IJEET) Volume 12, Issue 3, March 2021, pp. 289-295, Article ID: IJEET_12_03_037 Available online at http://www.iaeme.com/ijeet/issues.asp?JType=IJEET&VType=12&IType=3 ISSN Print: 0976-6545 and ISSN Online: 0976-6553 DOI: 10.34218/IJEET.12.3.2021.037 © IAEME Publication Scopus Indexed VOLTAGE SAG COMPENSATION AND POWER QUALITY IMPROVEMENT USING DYNAMIC VOLTAGE RESTORER S.Balaji Final year Student, Department of Electrical and Electronics Engineering, SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India P.Jagannathan Final year Student, Department of Electrical and Electronics Engineering, SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India S.Jayapriya Final year Student, Department of Electrical and Electronics Engineering SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India Ajay Krishna Final year Student, Department of Electrical and Electronics Engineering SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India Dr R.Karthik Associate Professor, Department of Electrical and Electronics Engineering, SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, India ABSTRACT Electrical and Electronic systems are subjected to a wide range of power quality problems such as short duration, long duration variations, wave form distortion, presence of non-sinusoidal components in the voltage waveform which interrupt production processes. Equipment sensitivity may lead to downtime scrap and capacity losses. Also, good power quality saves more energy and money. One approach to address voltage sag problem is by implementing Dynamic Voltage Restorer (DVR) as it gives compensation to sag, swell, improves the line regulation and restores load voltage within a few milliseconds. DVR are a relatively new static VAR device that has seen applications in a variety of distribution and transmission applications. Unlike other static compensators, DVR provides voltage compensation online, from a capacitor bank via an DC link. Due to its miniaturization, and cost reliability it includes fast dynamic response. This proposal presents modelling, analysis of voltage sags and correction of power factor for improved power quality using MATLAB/SIMULINK