Output Feedback Adaptive Control of a Class of Uncertain Nonlinear Systems with Dynamic Event-Triggered Strategy

• Published in: IEEE transactions on circuits and systems. II, Express briefs Vol. 70; no. 12; p. 1
• Main Authors: Liu, Wenhui, Ma, Qian, Xu, Shengyuan
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.12.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adaptive control; Adaptive sampling; Adaptive systems; Behavioral sciences; Circuit stability; Circuits and systems; Closed loops; Control methods; Control theory; Dynamic stability; event-triggering; Lyapunov methods; Nonlinear dynamical systems; Nonlinear systems; Output feedback; Parameter uncertainty; state observer; State observers
• ISSN: 1549-7747; 1558-3791
• DOI: 10.1109/TCSII.2023.3292175

This work aims at the global output feedback regulation of nonlinear systems subject to uncertain parameter and event-triggered signals. To handle the uncertain parameter in the nonlinear system, an adaptive law and a dynamic event-triggering-based sampling approach are produced. On the basis of the state observer, we propose a novel adaptive sampled control law to ensure the global stability of the closed-loop nonlinear systems. Owing to the dynamic event-triggered adaptive control method, the control performance can be guaranteed, and the Zeno behavior is avoided. The verification of the method is attributed to the simulation of a manipulator system.