Synchronization Of Complex Dynamic Networks With Actuator Faults

Complex dynamic networks exist in every aspect of human life.The application of complex dynamic networks is more and more extensive with the rapid development of tech-nology,such as transportation network,social network and ecological network.Actuator faults inevitably occur in control processes because of the external disturbance and uncer-tainties of systems,which may reduce system performance and even lead to catastrophic accidents.Therefore,the study of fault-tolerant control methods for complex dynamic net-works has certain theoretical and practical significance.The synchronization of complex dynamic networks with actuator faults is studied in this paper.The main research work are as follows:Firstly,the synchronization of Markov jump complex dynamic network with actuator faults and time-varying delay and H_∞ synchronization of Markov jump complex dynamic network with actuator faults and external disturbance are realized by designing more general adaptive fault-tolerant and dynamic event-triggered control schemes.The proposed control strategies can effectively reduce the load of network traffic and deal with the actuator faults with unknown time-varying bounded signal.Secondly,the finite-time cluster synchronization of Markov jump complex dynamic networks with actuator faults is analyzed by applying the Lyapunov stability methods.The impact of actuator faults on the system is eliminated by designing appropriate quantified dynamic event-triggered controller.Based on the existing event-triggered control strategies,a more general quantified dynamic event-triggered control mechanism is considered which can reduce the network load and exclude Zeno phenomenon more effectively.Finally,the fixed/preassigned-time synchronization of stochastic complex dynamic net-works under quantized adaptive fault-tolerant control scheme is studied.By applying the comparison system and combining Wiener process,a more accurate upper limit of the set-tling time of stochastic system is estimated and the fixed-time stochastic synchronization of complex dynamic network with actuator fault,external interference and random disturbance is realized.In particular,the adaptive controller parameters design method is proposed to realize the preassigned-time stochastic synchronization of complex dynamic networks.