Analysis Of Buck Converter: A Comparative Study Based On Fuzzy Logic And Internal Model Control Techniques

Abstract

Converter circuits are universally used in electronic systems to procure steady, stabilized output voltage from a provided input voltage. The performance of the structure relies on the type of control technique used. The focus of the article is to analyze the closed loop response of a buck converter circuit using Fuzzy Logic Control (FLC) and Internal Model Control (IMC) techniques. In the present study, the transfer function model of the buck converter is considered for the IMC design, whereas the FLC design is based on the general knowledge of the converter circuit. The design procedure is evaluated, and the comparisons are tabulated. The MATLAB/Simulink software is used to depict the converter’s closed loop performance. The simulation results exhibits the competence of the FLC over the IMC technique. From the study, it is observed that the FLC gives non-oscillatory output voltage compared with the IMC.