EVENT-TRIGGERED BASED MODEL-FREE ADAPTIVE SLIDING MODE CONSTRAINED CONTROL FOR NONLINEAR DISCRETE-TIME SYSTEMS

In this paper, a novel model-free adaptive event-triggered control strategy is proposed for nonlinear discrete-time systems. Firstly, the nonlinear system is described as an equivalent linear model via the compact form dynamic linearization method, and the pseudo partial derivative is estimated based on an observer-based adaptive law. Then, the anti-windup compensator is used to settle out the actuator saturation phenomenon in the control system, and the equivalent control law and switching control law are designed to track the desired output signal. Considering the computational pressure and time cost, the event-triggered mechanism is designed, which only updates the control signal when the preset event triggering condition is satisfied, and the stability of the proposed control algorithm is justified. Finally, the validity and applicability of the control strategy are verified by a simulation example.