Event-Triggered Control for Nonlinear Networked Cascade Control Systems with State Delay

This paper focuses on the event-triggered control problem of nonlinear continuous network cascade control systems (NCCSs) with network delay and state delay. Firstly, to markedly enhance transmission efficiency in the network environment, an event-triggered mechanism is introduced, and a nonlinear NCCS model is constructed by taking into account the influence of nonlinear disturbance and double time delays in the system. Secondly, by constructing Lyapunov generalized functions and with the help of known theorems, the sufficient condition for system stability is provided. Then, the design of the two state feedback controllers is accomplished using the LMI toolbox in Matlab. Finally, the feasibility of the method is confirmed in a simulation example of a thermal power plant, which demonstrates good performance.