Event-triggered Control For Several Classes Of Networked Control Systems

Networked systems have been the research hotspot in the fields of communication and control in recent years due to their wide applications in practical engineering.The limited network resources and network bandwidth bring much difficulty to the research of networked systems.ETC schemes can save network resources.Thus,ETC problems of networked systems have received plenty of attention in recent years.This dissertation considers that networked systems may be subject to random structure and parameter changes,network-induced delays and random cyber attacks.ETC problems of several classes of networked system are addressed by using tools of the delay method,Lyapunov stability theory and linear matrix inequality.The main results of this dissertation are as follows:· For NCSs with actuator fault and random parameter,the control strategy based on the HETM is designed,which could save communication resources while avoiding the Zeno behavior.The effect of actuator fault is considered and the time-varying actuator fault model is established.By using the delay method,sufficient conditions in form of LMIs are given to ensure the closed-loop system satisfies stochastic passivity.Furthermore,the problem of exponential synchronization for master-slave NNs is addressed.Sufficient conditions are given to ensure the master-slave NN achieves mean square exponential synchronization with prescribed (?)_∞performance.· Consider the cases of actuator fault and random deception attacks for the masterslave NNs with semi-Markovian jump,the mode-dependent ETS is designed.Sufficient conditions are given to ensure the master-slave NN achieves asymptotical synchronization with prescribed (?)_∞performance.· The problem of (?)_∞ filtering for a class of networked systems subject to de-ception attacks is addressed.The improved output-based ETS is designed,which can further reduce data transmission to save more network resources.The Bernoulli process is used to establish the random deception attack model.Sufficient conditions are given to ensure the filtering error system achieves stochastic asymptotic stability with prescribed (?)_∞performance.