Event-triggered And Quantized Control Analysis Of Switched Systems

In this paper,the stability of switched systems under two kinds of feedback control is considered,and the results are applied to two-stage chemical reaction systems,flight control systems and boost converter systems.In the first chapter,several definitions and lemmas are prepared in order to derive the main conclusions of this paper.Chapter 2 investigates the stabilization of coupling event-triggered sampling mechanism and observer-based input feedback control of a class of actuator saturated switched systems with time-varying delays.Compared with the general continuous time feedback control,the advantage of observer-based event-triggered feedback control is that it can carry out non-continuous time feedback control,especially in response to incomplete system state information,the feedback control method is more practical;the second,controller can flexibly adjust and change with the switching signals and triggering signals to achieve the desired control effectiveness;the third,the observer is not only an important component of event-triggering,but also can track the performance of the switched systems.In this chapter,by combining the Lyapunov function method with the convex hull technique,sufficient conditions in terms of LMIs are presented to guarantees the exponential stability of the closed-loop system subject to an average dwell time constraint.Moreover,we verify that the proposed method does not cause Zeno behavior.Chapter 3 investigates the problem of finite-time stability and finite-time H? stabilization for switched systems with parametric uncertainties and nonlinear disturbances.In this chapter,we propose a dynamic quantized input feedback control technology,which is different from sampling,quantization depends on state space separation,so it is a good tool when considering limited bandwidth and cost orientation.In addition,since the adopted quantization method can improve network congestion by reducing the impact of packet loss and packet confusion,the feedback control method is compared with static feedback control or general dynamic feedback control,in the face of complex systems or minimizing the impact of system disturbance,the applicability is more extensive and stronger.In this chapter,sufficient conditions for finite time stability and H? finite time stabilization of the closed-loop systems are given by using Lyapunov function method and average dwell time method.