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Simulation analysis of cascade controller for DC-DC buck converter.

Author(s)
Mukhtiar Ahmed Mahar Department of Electrical Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan
Muhammad Rafiq Abro Department of Electrical Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan
Abdul Sattar Larik Department of Electrical Engineering, Mehran University of Engineering and Technology, Jamshoro, Pakistan
Abstract
Power electronic converters are periodic variable structure systems due to their switched operation. During the last few decades several new dc-dc converter topologies have emerged. Buck converter being simple in topology, has recently drawn attraction of many researchers. Basically, a buck converter is highly under damped system. In order to overcome the developed oscillations in output of this converter, various control techniques have been proposed. However, these techniques are fraught with many drawbacks. This paper focuses on a cascade controller based buck topology. Steady state analysis is given in this paper which shows output voltage and inductor current in detail. Dynamic analysis for line and load variation is also presented. The buck topology is implemented and simulated in MATLAB/Simulink. The simulated results are presented.
Publication Details
Page(s) 349-356
DOI DOI not available
Published Journal: Mehran University Research Journal of Engineering and Technology, Volume: 28, Issue: 3, Year: 2009

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