Performance Analysis of Fuzzy Logic Controlled DC-DC Converters

This paper presents an approach for a comparative study on different types of dc-dc converters. The design of a fuzzy logic controller using output voltage as feedback for a remarkable improvement. The dynamic performance of various types of DC-DC converters by using MATLAB Simulink software is described in this paper. Here, closed loop Fuzzy logic controlled Buck, Boost, Flyback and Buck-Boost converters are developed. The outputs have been compared by MATLAB simulation between the open loop and PID controlled counterpart with same parameters. Comparing these results it has been noticed that the Fuzzy Logic Controlled Converters perform remarkably better (No overshoot, less ripple, settling time reduced) than the PID and open loop counterparts.