Research On Analysis Modeling And Control Of Network Switching Control System

Based on the linear time-invariant controlled object,this paper considers the influence of system delay,uncertainty,and transmission restriction on the system,and studies the modeling,stability analysis and controller design of the network switching control system.Then the Lyapunov function,the small gain theorem,the average dwell time,and the linear matrix inequality method are used to analyze the stability and performance of the system.Finally,the results obtained by the Jitterbug toolbox are verified by simulation.Firstly,a network switching control system model is established.In consideration of time delay and energy bounded disturbances,a polytopic differential inclusion(PDI)and a norm-bounded differential inclusion(NDI)method are used to describe the actuator saturation system.The sufficient conditions of the output feedback control law that make the system stable,thus designing the controller that can guarantee the stability of the system.Then through the comparison of the attracting domain of the switched linear system,the simulation results show that the controller designed by using the norm-bounded differential inclusion method to describe the system is effective.Secondly,we further consider the situation of bounded disturbances and network delays,a time-delay system model is constructed.Through the Lyapunov-Metzler inequality and linear matrix inequality analysis,the asymptotic stability of the system with uncertainties and delays is studied and designed.An output feedback controller that can meet the pre-defined ? gain performance is also verified by simulation experiments.Finally,considering the impact of network transmission rate limitation and disturbance on the network switching control system,a corresponding control system model is established.After quantizing the output signal,an average dwell time method is adopted,and the existing technology is used to switch the linear system.The simplified dynamic quantizer of the linear system is analyzed and the conditions for stabilizing the system are obtained.Simulation experiments verify that the effect of the output quantization controller on system stability is effective.