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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 6    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 6, June 2011 Edition
Analysis and Simulation of DVR by Using AC Chopper for Distribution System
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Author(s)
D.R.K.Praveen, T.Vijay Muni, V V Satyanarayana Rao.R
KEYWORDS
AC chopper, Dynamic Voltage Restorer (DVR), Sensitive loads, Series Compensation, Simulink, Voltage sags, Voltage swells.
ABSTRACT
This paper deals with modelling and digital simulation of AC chopper based Dynamic Voltage Restorer (DVR). The control of DVR that injects a voltage in series with a distribution feeder is presented. DVR is a power electronic controller that can protect sensitive loads from disturbances of voltage fluctuations in supply system. It is observed that DVR can regulate the voltage at the load. Circuit model is developed for the single phase model and the same is used for simulation studies. It is tested for different capacity loads.
References
[1] N.H. Woodley, L. Morgan and A. Sundaram, “Experience with an inverter-base dynamic voltage restorer,” IEEE Trans. Power Delivery, Vol. 14, No.3, pp.1181-1185, 1999.

[2] Lei B.H., Choi S. S., and Vilathgamuwa D.M.: “Design considerations on the line-side filter used in the dynamic voltage restorer”. IEEE Proceedings — Generation, Transmission, and Distribution, vol.148, pp. 1–7, Jan. 2001.

[3] Mozder, A. JR. – Bose, B. K., “Three-Phase AC Power Control Using Power Transistors,” IEEE Trans. Ind. Appl., IA-12 (1976), pp. 499– 505.

[4] Chan, K., 1998. “Technical and performance aspects of a dynamic voltage restorer”. In IEE Half DayColloquium on Dynamic Voltage Restorers- Replacing Those Missing Cycles, pp: 5/1-525.

[5] Kularatna N.: “Power Electronics Design Handbook: Low-Power Components and Applications”. Boston: Newnes, 1998.

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