A Novel Fuzzy Logic Based Adaptive Supertwisting Sliding Mode Control Algorithm for Dynamic Uncertain Systems

摘要

This paper presents a novel fuzzy logic based Adaptive Super-twisting SlidingMode Controller for the control of dynamic uncertain systems. The proposedcontroller combines the advantages of Second order Sliding Mode Control, FuzzyLogic Control and Adaptive Control. The reaching conditions, stability androbustness of the system with the proposed controller are guaranteed. Inaddition, the proposed controller is well suited for simple design andimplementation. The effectiveness of the proposed controller over the firstorder Sliding Mode Fuzzy Logic controller is illustrated by Matlab basedsimulations performed on a DC-DC Buck converter. Based on this comparison, theproposed controller is shown to obtain the desired transient response withoutcausing chattering and error under steady-state conditions. The proposedcontroller is able to give robust performance in terms of rejection to inputvoltage variations and load variations.