Robust integrity for uncertain NNCS with actuator saturation

In this paper, the problem of robust integrity considering actuator structural failures for a class of uncertain nonlinear networked control system (NNCS) subject to actuator saturation is investigated. By utilizing the delay-dependent Lyapunov method and convex combination expression of input satur...

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Bibliographic Details
Main Authors: Cao Huichao, Li Wei, Jiang Dong-nian
Format: Conference Proceeding
Language:English
Subjects:
Actuator saturation
Actuators
Artificial neural networks
Comprehensive time-varying delay
Delays
Fault tolerance
Fault tolerant systems
Networked control system
Robust integrity
Robustness
Symmetric matrices
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Summary:In this paper, the problem of robust integrity considering actuator structural failures for a class of uncertain nonlinear networked control system (NNCS) subject to actuator saturation is investigated. By utilizing the delay-dependent Lyapunov method and convex combination expression of input saturation function, the less conservative stability criteria and the approach of robust fault-tolerant state feedback controller are derived for the control problem. By introducing a definition of the fault-tolerant attraction domain and solving an optimization problem with LMIs constraints, the maximum fault-tolerant attraction domain can be estimated. The key features of the proposed approach include the use of a tighter bounding technique for reducing conservativeness and the introduction of augmented matrix items into the Lyapunov-Krasovakii functional for reducing computational demand. Finally, an example is used to illustrate the effectiveness and the feasibility of proposed approach.approach.
ISSN:1948-9439
1948-9447
DOI:10.1109/CCDC.2013.6561831