Title
Saturated output feedback tracking control for robot manipulators via fuzzy self-tuning
Abstract
This paper concerns the problem of output feedback tracking (OFT) control with bounded torque inputs of robot manipulators, and proposes a novel saturated OFT controller based on fuzzy self-tuning proportional and derivative (PD) gains. First, aiming to accomplish the whole closed-loop control with only position measurements, a linear filter is involved to generate a pseudo velocity error signal. Second, different from previous strategies, the arctangent function with error-gain is applied to ensure the boundedness of the torque control input, and an explicit system stability proof is made by using the theory of singularly perturbed systems. Moreover, a fuzzy self-tuning PD regulator, which guarantees the continuous stability of the overall closed-loop system, is added to obtain an adaptive performance in tackling the disturbances during tracking control. Simulation showed that the proposed controller gains more satisfactory tracking results than the others, with a better dynamic response performance and stronger anti-disturbance capability.
Year
DOI
Venue
2010
10.1631/jzus.C0910772
浙江大学学报C辑(计算机与电子)(英文版)
Keywords
Field
DocType
bounded torque input,robot,output feedback,fuzzy control,tracking systems,Robot,Tracking systems,Bounded torque input,Fuzzy control,Output feedback,TP24
Control theory,Torque,Linear filter,Control theory,Computer science,Fuzzy logic,Tracking system,Self-tuning,Fuzzy control system,Iterative learning control
Journal
Volume
Issue
ISSN
11
12
1869-196X
Citations 
PageRank 
References 
3
0.44
12
Authors
3
Name
Order
Citations
PageRank
Hua-shan Liu173.22
Shi-qiang Zhu2135.34
Zhang-wei Chen330.44