Adaptive Fuzzy Finite-Time Command-Filtered Backstepping Control of Flexible-Joint Robots

Autor: Achille Melingui, Roger Datouo, Joseph Jean Baptiste Mvogo Ahanda, Frédéric Biya-Motto, Bernard Essimbi Zobo
Rok vydání: 2020
Předmět:
Zdroj: Robotica. 39:1081-1100
ISSN: 1469-8668
0263-5747
DOI: 10.1017/s0263574720000910
Popis: SUMMARYThe problem of finite-time tracking control for n-link flexible-joint robot manipulators is addressed. An adaptive fuzzy finite-time command-filtered backstepping control scheme is presented to solve the following problems: “explosion of terms” problem, finite-time stabilization of the closed-loop system, and the reduction of computational cost. To this end, new virtual adaptive control signals and new finite-time error compensation mechanism are constructed using inherent properties of robot manipulator systems. Based on the Lyapunov theory, the finite-time stabilization of the closed-loop system is proved. Simulation studies show the effectiveness of the proposed method.
Databáze: OpenAIRE