Title
Composite Learning Fuzzy Control of Uncertain Nonlinear Systems.
Abstract
Function approximation accuracy and computational cost are two major concerns in approximation-based adaptive fuzzy control. In this paper, a model reference composite learning fuzzy control strategy is proposed for a class of affine nonlinear systems with functional uncertainties. In the proposed approach, a modified modeling error that utilizes data recorded online is defined as a prediction error, a linear filter is applied to estimate time derivatives of plant states, and both the tracking error and the prediction error are exploited to update parametric estimates. It is proven that the closed-loop system achieves semiglobal practical exponential stability by an interval-excitation condition which is much weaker than a persistent-excitation condition. Compared with a concurrent learning approach that has the same aim as this study, the computational cost of the proposed approach is significantly reduced for the guarantee of accurate function approximation. An illustrative example of aircraft wing rock control has been provided to verify effectiveness of the proposed control strategy.
Year
DOI
Venue
2016
10.1007/s40815-016-0243-4
Int. J. Fuzzy Syst.
Keywords
Field
DocType
Adaptive control, Fuzzy approximation, Composite learning, Interval excitation, Parameter convergence, Online modeling
Mathematical optimization,Nonlinear system,Linear filter,Function approximation,Control theory,Exponential stability,Parametric statistics,Adaptive control,Fuzzy control system,Mathematics,Tracking error
Journal
Volume
Issue
ISSN
18
6
2199-3211
Citations 
PageRank 
References 
0
0.34
7
Authors
5
Name
Order
Citations
PageRank
Yongping Pan1504.64
J. Meng22793174.51
Yiqi Liu3223.46
Lin Pan4569.06
Haoyong Yu562174.47