Design and Simulation of Dynamic Voltage Restorer (DVR) Using Sinusoidal Pulse Width Modulation (SPWM).

P.Sukrutha; K.T.S Meghana; N.Arun Kumar; P.Sailesh babu

Volume : IV, Issue : XI, November - 2015

Design and Simulation of Dynamic Voltage Restorer (DVR) Using Sinusoidal Pulse Width Modulation (SPWM).

P. Sukrutha, K. T. S Meghana, N. Arun Kumar, P. Sailesh Babu

Abstract :

This paper gives a systematic procedure of the design and simulation of Dynamic Voltage Restorer (DVR) using Sinusoidal Pulse Width Modulation (SPWM). Though power quality related problems like voltage sags/swells occur both on the transmission side as well as the distribution side, the terminology used for the compensation devices is different. DVR is a series connected device used for compensating voltage sags and swells on the distribution side. In this work, a step by step procedure is given to figure out the components that are required for the design and simulation of DVR. The detection of sags/swells is carried out with the help of dqo theory, whereas the control of the voltage source inverter is done with the help of SPWM. The VSI has been implemented with the help of both Bipolar SPWM as well as Unipolar SPWM and the results were compared. The simulation was carried out with the help of SIMULINK & MATLAB and the results were found to be in accordance with theory