Stability Analysis And Controller Design Of A Motor Networked Cascade Control System With Event-Triggering Scheme

After entering the new century,a large amount of information technology has gradually been used in the control system.Especially for the networked control system(NCS)to explore a lot of practical value.One of these is Networked Cascade Control Systems(NCCSs).This kind of system belongs to a very special control system.Many experts have also done a lot of research on it and obtained corresponding results.Such results not only have a certain theoretical value,but also can be introduced into the practical process.However,because network resources are not pre-emptive,they also have many problems in their own right.As a result,the system performance is reduced or even the operation time is not stable.These problems are generally caused by network induced delays,packet loss,and timing churn.Therefore,under this premise,analyzing the NCCSs has extremely important value.In this paper,DC motor was selected as the control object in the research process,and NCCSs were applied to the NCMCS.NCCSs are classified into linear continuous NCCSs and linear discrete NCCSs.Then use Lyapunov stability theory and LMI techniques to give sufficient conditions for system stability and design corresponding primary and secondary controllers.Comparing with the current existing PID controller model based on experience and data comparison,this paper first obtains the theoretically optimal data of the main and sub controllers of the system from the theoretical level through reasonable calculations.Play better in production.The detailed analysis process is as follows:Currently,the advantages of the event trigger mechanism in saving bandwidth resources and the widespread existence of NCCSs in industrial production are considered.For the first time,the event trigger mechanism is used in a linear continuous NCCSs and a linear discrete NCCSs to establish a mathematical model of a NCCSs with an event trigger mechanism,using Lyapunov stability theory and the LMI technique then obtain the conditions for event triggering and the prerequisite requirements for ensuring the smooth operation of the system.Redesign the corresponding primary and secondary controllers,and demonstrate the feasibility and practical value of this approach via simulation.Finally,an experimental platform for a DC motor was built,and experimental verification was performed on the basis of theoretical proof and simulation verification.