NDLI: Adaptive fuzzy memory fault-tolerant control of non-linear systems with partially known time-varying delays

Content Provider	IET Digital Library
Author	Zhai, Ding An, Liwei Dong, Jiuxiang Zhang, Qingling
Abstract	This studies the fuzzy-approximation-based adaptive memory fault-tolerant control problem for a class of non-linear time-delay systems with non-affine non-linear delayed faults. The main advantages of the developed scheme are as follows: first, based on the partial information of time-varying delays, the unknown delay terms are approximated by combing fuzzy logic systems and adaptive mechanisms, and then, based on the obtained delay estimates, a memory controller is constructed, which removes the restriction on delays and time-delay functions due to the Krasovskii function in the existing results; second, non-affine non-linear delayed faults are initially considered, and this new technique combing the property of hyperbolic tangent function, implicit function theorem and mean value theorem is adopted to circumvent the algebraic loop problems in controller design. It is proved that the proposed controller can ensure that the closed-loop system is semi-globally bounded, and all entire state tracking errors converge to a priori known accuracy. Finally, a simulation example is included for validating the advantages of the proposed approach.
Starting Page	2060
Ending Page	2070
Page Count	11
ISSN	17518644
Volume Number	10
e-ISSN	17518652
Issue Number	Issue 16, Oct (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/10/16
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2016.0034
Journal	IET Control Theory & Applications
Publisher Date	2016-07-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Control Algebraic Loop Problem Approximation Theory Closed Loop System Closed-loop System Control System Analysis Control System Synthesis Controller Design Delay Estimate Delay Estimation Delay System Distributed Parameter Control System Fault Tolerant Control Fuzzy Control Fuzzy Logic System Fuzzy System Fuzzy-approximation-based Adaptive Memory Fault-tolerant Control Problem Hyperbolic Tangent Function Implicit Function Theorem Interpolation And Function Approximation Krasovskii Function Mean Value Theorem Modelling And Identification Nonaffine Nonlinear Delayed Fault Nonlinear Control System Nonlinear Time-delay System Numerical Analysis Self Adjusting Control System Simulation State Tracking Error Synthesis Method Time Varying Control System Time Varying System Unknown Delay Term
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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