Adaptive fuzzy H∞ tracking design of SISO uncertain nonlinear fractional order time-delay systems

被引:0
作者
Tsung-Chih Lin
Chia-Hao Kuo
Tun-Yuan Lee
Valentina E. Balas
机构
[1] Feng-Chia University,Department of Electronic Engineering
[2] Feng-Chia University,Ph.D. Program in Electrical and Communications Engineering
[3] Aurel Vlaicu University of Arad,undefined
来源
Nonlinear Dynamics | 2012年 / 69卷
关键词
Adaptive fuzzy control; Fractional order; Time delay; control; Lyapunov criterion;
D O I
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中图分类号
学科分类号
摘要
In this paper, a fuzzy logic controller equipped with training algorithms is developed such that the H∞ tracking performance should be satisfied for a model-free nonlinear fractional order time delay system which is infinite dimensional in nature and time delay is a source of instability. In order to deal with the linguistic uncertainties caused from delay terms, the adaptive time delay fuzzy logic system is constructed to approximate the unknown time delay system functions. By incorporating Lyapunov stability criterion with H∞ tracking design technique, the free parameters of the adaptive fuzzy controller can be tuned on line by output feedback control law and adaptive law. Moreover, the tracking error and external disturbance can be attenuated to arbitrary desired level. The numerical results show the effectiveness of the proposed adaptive H∞ tracking scheme.
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页码:1639 / 1650
页数:11
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