Robust Event-Triggered Control Subject to External Disturbance*. Issue 1 (July 2017)

• Record Type: Journal Article
• Authors: Zhang, Pengpeng; Liu, Tengfei; Jiang, Zhong-Ping
• Is Part Of: IFAC-PapersOnLine. Volume 50:Issue 1(2017)
• Page Start: 7899
• Page End: 7904
• Publication Date: 2017-07
• Subjects: Event-Triggered Control -- Input-to-State Stabilization -- External Disturbances -- Dynamic Uncertainty; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2017.08.752
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: This paper studies the event-triggered control problem for systems subject to both dynamic uncertainties and external disturbances. To overcome infinitely fast sampling caused by the disturbance, a new event-triggering mechanism is proposed, which uses not only the measurable system state but also an estimate of the unmeasurable state and the external disturbance. The inter-sampling intervals can be proved to be lower bounded by a positive constant, which is independent on the magnitudes of the unmeasurable state and the external disturbance. With the proposed design, the closed-loop event-triggered system can be input-to-state stabilized with the external disturbance as the input. Refined tools of input-to-state stability (ISS) and the small-gain theorem are employed in solving the problem.