Event-Triggered Control And Its Application To Aeroengine

Since event-triggered control has the advantage of saving resource and reducing the energy consumption with respect to the traditional time-triggered control,the research on event-triggered control gets more and more attention.The study on event-triggered control comes from the networked systems.For the case that model of the plant could not be described by accurate linear time invariant system,the linear parameter varying(LPV)system is used to describe the plant.The thesis carries out the research in the above background,and researching the event-triggered control of such a system is the main starting point,then the theoretical study has been carried on the LPV model of an aeroengine to further exploratory research.The robust control problem of the discrete-time LPV system based on the event-triggered control is studied in this thesis.The event-triggered control problem of the discrete-time switched LPV system was carried on in further study.Firstly,the discrete-time LPV system based on event-triggered control is studied in this thesis.The thesis solves the problem of co-design of feedback control gain and the event triggered condition which makes the system is input-to-state stable(ISS).Applying the ISS-Lyapunov function method,the thesis gives the sufficient condition of solving the problem.Besides,the robust control problem of the discrete-time LPV system based on the event-triggered control is studied.The thesis gives the method on co-design of the H?controller and the event triggered condition that makes the system is asymptotically stable.Secondly,the ISS problem of discrete-time switched LPV system based on event-triggered control is studied in this thesis.The feedback control law and event triggered condition of discrete-time switched LPV system are co-designed which forcing the system is ISS.Applying the common ISS-Lyapunov function method,a sufficient condition of the co-design of the feedback control gain and the event trigger condition are presented under two kinds of event triggered condition.Finally,a LPV model and a switched LPV model of an aeroengine are simulated over dynamic process,which indicates the availability of the control law.The main results of this thesis are summarized and the shortages of the study are pointed out.Moreover,some problems which will be studied in the future are pointed out.