Stabilization Design Of Network Switched Fuzzy Control System

The essence of network switched fuzzy system is nonlinear network switched system.Based on the T-S model modeling nonlinear network switched system as a network switched fuzzy system,studied the stability control problem of nonlinear network switched system.As a new type of control system,network switched fuzzy control system is widely used in industrial control process,UAV and other fields.It is a new development direction of control system and has important research value.However,the research results for nonlinear network switched control system are quite limited.Aimed at the nonlinear network switched system modeled by T-S model,studied the non-fragile control and fault-tolerant control of network switched fuzzy system with uncertainty,time delay and external interference.The details are as follows:(1)The non-fragile control problem is studied for uncertain network switched fuzzy system with state is unmeasurable,in which the controller gain exists perturbation,designed the observer-based controller and system switching law.(2)Based on the Lyapunov function method and the average dwell time method,the state feedback controller and the observer-based feedback controller are designed for uncertain network switched fuzzy system with time-varying delay.The average dwell time condition of the exponential stability and system switching law for network switched fuzzy time-delay system is presented.(3)The non-fragile H_? control problem is studied for uncertain network switched fuzzy system with external disturbance and data packet dropout.The packet loss is treated as a time delay,and the time delay is described by the random sequence of Bernoulli distributed.Presented a sufficient condition to make the mean square exponential of system stable and also satisfy the performance criterion of H_??(4)The non-fragile H_? fault-tolerant control problem is studied for uncertain network switched fuzzy system with system actuator malfunction and the controller gain exists perturbation.Designed the system switching law to make the system with actuator failure reach exponential stability.Finally,a MATLAB numerical simulation example verifies the effectiveness of the design method.