Enhancing Distribution System Power Quality with an Integrated Ultra-Capacitor Based Dynamic Voltage Restorer (DVR)

Abstract

Power quality issues in electrical distribution systems, such as voltage sags, swells, and harmonics, significantly
impact the performance and reliability of electrical devices and renewable energy integration. This paper proposes
an innovative solution through the development of an Ultra-Capacitor based Dynamic Voltage Restorer (DVR)
designed to enhance power quality in distribution systems. The integration of ultra-capacitors provides a rapid
response to power quality disturbances, offering a reliable and efficient energy storage medium that enhances the
DVR's performance. The proposed system's design and control strategy are elaborated and simulated using
MATLAB/Simulink, demonstrating its capability to effectively mitigate voltage sags, swells, and reduce harmonic
distortion. The simulation results validate the ultra-capacitor based DVR's superiority in improving power quality,
showcasing its potential as a robust solution for maintaining voltage stability and ensuring the seamless operation of
sensitive loads in the distribution network.