Event-Triggered Control For Continuous System Based On Output Feedback

Because of its extensive existence in production and life,continuous systems have long been studied by researchers as an interested field.In actual production,there are a large number of continuous systems,such as the control of temperature and water level in industrial production,power flow control in the power system and so on.In our daily life,there are also many continuous systems,including the operation and control of the escalator in the mall,the remote sensing control of unmanned aerial vehicles,etc.For the different control problems in a continuous system,some researchers have given different control algorithms.From the feedback signal of the system,state feedback control and output feedback control are the two most basic feedback control methods.Since the output feedback is generally measurable,it has a certain advantage over the state feedback.The proposed event triggering mechanism provides a systematic design method and step for non-uniform sampling of the system,and it can effectively reduce the number of sampling.The application of event-triggered mechanism in continuous systems to optimize the performance of the system has become a hot topic in recent years.In this thesis,the control strategy of continuous system based on output feedback is studied from the perspective of event-triggering.The main algorithm is divided into three parts.In the first part,the controller of linear continuous system is designed based on the combined state of distributed individuals.Because event-triggered control is controlled by error,the measurement error of local combined state is defined.After that,the triggering function is given.Finally,it is proved that the Zeno behavior of the system is excluded.In the second part,a state observer based output feedback event-triggered control algorithm is designed.Unlike the first part,we design the control output of the system based on the state observer state,and give the definition of the measurement error.By using the superior performance of the observer,the design method of the controller is given according to the steps.Under the event-triggered condition,the system is sampled inhomogeneous.In simulation,we have counted some interesting event-triggered parameters,such as trigger times,minimum event-triggered intervals and average event-triggered intervals.In the third part,the detailed design process of the distributed event-triggered tracking control algorithm based on output feedback is given for the "leader-following" problem in the continuous system.Firstly,we give the dynamic equation that satisfying the leader and follower,and point out that each follower can get the leader's state information,and define the measurement error of the leader and followers.Secondly,the designed controller is divided into two parts,that is,the event-triggered control input and the dynamic compensation input.