A novel technique for mitigation of voltage sag/swell by Dynamic Voltage Restorer (DVR)

This paper deals with modeling and simulation technique of a Dynamic Voltage Restore (DVR). The DVR is a dynamic solution for protection of critical loads from voltage sags / swells. The DVR restores constant load voltage and voltage wave form by injecting an appropriate voltage. Present novel structure improves power quality by compensating voltage sag and voltage swells. This paper discussed abc to dq0 base new control algorithm to generate the pulse. The proposed control scheme is simple to design and has excellent voltage compensation capabilities. Effectiveness of proposed technique is investigated through computer simulation by using MATLAB/SIMULNK software. The simulation results have shown validation of the control system.

[1]  F.A.L. Jowder.  Modeling and Simulation of Dynamic Voltage Restorer (DVR) Based on Hysteresis Voltage Control , 2007, IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society.

[2]  Yan Li,et al.  Voltage Sag Study for a Practical Industrial Distribution Network , 2006, 2006 International Conference on Power System Technology.

[3]  Frede Blaabjerg,et al.  Control and testing of a dynamic voltage restorer (DVR) at medium voltage level , 2004 .

[4]  Y.Y. Kolhatkar,et al.  Experimental Investigation of a Single-Phase UPQC With Minimum VA Loading , 2007, IEEE Transactions on Power Delivery.

[5]  G. Joos,et al.  A nonlinear control method of dynamic voltage restorers , 2002, 2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289).

[6]  N.A. Rahim,et al.  Modeling and simulation for voltage sags/swells mitigation using dynamic voltage restorer (DVR) , 2008, 2008 Australasian Universities Power Engineering Conference.