Published Paper Details:

DC-DC converters, reducing or decreasing the input voltage at the output, are commonly used in many power electronics application. Generally, all types of converter are derived from Buck or Boost converter topology. Conventional control methods has slow dynamic response to power source perturbation compared to one cycle control method. This paper demonstrates that switching converters based on One-Cycle Control strategy. One cycle control is a kind of nonlinear control technique. It is defined as the average value of the switched variable can follow its control reference within a switching cycle. In this paper presents one cycle control method and PI Control Method for buck converter and its results are analyzing using MATLAB/SIMULINK. Buck converter is analyzed with two control methods, PI and One Cycle Control (OCC), have been applied to set the output voltage at desired voltage level with 100 W output power and 10 kHz switching frequency. The simulation results have been obtained by using Simulink/MATLAB and compared with each other. The results include the dynamic response of the suggested control methods with variation of reference, power at output and input voltages. And, the proposed OCC method has better results from the point of load and reference variation. For input voltage variation PI control method is superior.