Study of Sliding Mode Control of DC-DC Buck Converter
Hanifi Guldemir
DOI: 10.4236/epe.2011.34051   PDF    HTML     10,624 Downloads   21,638 Views   Citations


In this paper, a robust sliding mode controller for the control of dc-dc buck converter is designed and analyzed. Dynamic equations describing the buck converter are derived and sliding mode controller is designed. A two-loop control is employed for a buck converter. The robustness of the sliding mode controlled buck converter system is tested for step load changes and input voltage variations. The theoretical predictions are validated by means of simulations. Matlab/Simulink is used for the simulations. The simulation results are presented. The buck converter is tested with operating point changes and parameter uncertainties. Fast dynamic response of the output voltage and robustness to load and input voltage variations are obtained.

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Guldemir, H. (2011) Study of Sliding Mode Control of DC-DC Buck Converter. Energy and Power Engineering, 3, 401-406. doi: 10.4236/epe.2011.34051.

Conflicts of Interest

The authors declare no conflicts of interest.


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