DIRECT ADAPTIVE FUZZY MOVING SLIDING MODE CONTROLLER DESIGN FOR ROBOTIC MANIPULATORS

Author:

MEDHAFFAR HANÈNE1,DAMAK TARAK2,DERBEL NABIL1

Affiliation:

1. Intelligent Control, design and Optimization of Complex Systems (ICOS), Ecole Nationale des Ingénieurs de Sfax B.P.W. 3038, Sfax, Tunisie

2. Unité de Commande Automatique (UCA), Ecole Nationale des Ingénieurs de Sfax B.P.W. 3038, Sfax, Tunisie

Abstract

This paper presents an adaptive moving sliding mode fuzzy control for robotic manipulators. The consequence parameters of the fuzzy control rules are adjusted online by applying the Lyapunov stability condition. Furthermore, parameters tuning is carried out in order to guarantee the sliding condition. Comparison between zero order and first order Sugeno model are presented. Moreover, a time-varying sliding surface is used with the aim of enhancing tracking-performance. Indeed, moving sliding surface improves the robustness during the reaching phase against uncertainties, parameter variations and extraneous disturbances. As an illustration, the trajectory control of a two degrees-of-freedom robotic manipulator is considered.

Publisher

World Scientific Pub Co Pte Lt

Subject

Computer Science Applications,Theoretical Computer Science,Software

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