Observer-Based Synchronization of Complex Dynamical Networks Under Actuator Saturation and Probabilistic Faults

This paper investigates the observer-based synchronization problem for a family of complex dynamical networks subject to time delay, external disturbance, randomly occurring actuator faults, and input saturation. A realistic actuator fault model is considered in which the actuator faults are represe...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on systems, man, and cybernetics. Systems man, and cybernetics. Systems, 2019-07, Vol.49 (7), p.1516-1526
Main Authors: Selvaraj, Palanisamy, Sakthivel, Rathinasamy, Ahn, Choon Ki
Format: Article
Language:English
Subjects:
Actuator saturation
Actuators
complex dynamical networks (CDNs)
Computer simulation
Controllers
Faults
Matrix methods
Observers
Optimization
Optimization techniques
Peer-to-peer computing
Probability theory
Saturation
state observer
Stochastic processes
stochastic reliable control
Symmetric matrices
Synchronism
Synchronization
Time lag
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper investigates the observer-based synchronization problem for a family of complex dynamical networks subject to time delay, external disturbance, randomly occurring actuator faults, and input saturation. A realistic actuator fault model is considered in which the actuator faults are represented by stochastic variables that are assumed to obey a certain probabilistic distribution. An H_{\infty} performance-related criterion is obtained via the Lyapunov-Krasovskii functional approach and stochastic analysis technique to asymptotically minimize the synchronization error and observer error simultaneously. Moreover, to meet the requirement of actuator saturation, the conditions for the domain of the attraction region are determined by employing the linear matrix inequality (LMI) approach and an optimization technique. Specifically, the proposed controller for the network synchronization is very simple and easy to implement in practical systems. Furthermore, the gain values of controller and observer gains are calculated by solving a set of LMIs. Eventually, the proposed theoretical results are verified through numerical simulations.
ISSN:2168-2216
2168-2232
DOI:10.1109/TSMC.2018.2803261