Event-triggered controllers based on the supremum norm of sampling-induced error

被引：10
作者：
Zhu, Lijun [1 ]
Chen, Zhiyong [2 ]
Hill, David J. [3 ]
Du, Shengli [4 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Artificial Intelligence & Automat, Key Lab Imaging Proc & Intelligence Control, Wuhan 430074, Peoples R China
[2] Univ Newcastle, Sch Elect Engn & Comp, Callaghan, NSW 2308, Australia
[3] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Peoples R China
[4] Beijing Univ Technol, Coll Automat, Fac Informat Technol, Beijing 100124, Peoples R China
来源：
AUTOMATICA | 2021年 / 128卷
关键词：
Event-triggered control; Zeno behavior; Lower-triangular systems; Nonlinear systems; NONLINEAR-SYSTEMS; STABILIZATION;
D O I：
10.1016/j.automatica.2021.109532
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The paper proposes a novel event-triggered control scheme for nonlinear systems. Specifically, the closed-loop system is associated with a pair of auxiliary input and output. The auxiliary output is defined as the derivative of the continuous-time input function, while the auxiliary input is defined as the input disturbance caused by the sampling or equivalently the integral of the auxiliary output over the sampling period. As a result, it forms a cyclic mapping from the input to the output via the system dynamics and back from the output to the input via the integral. The event-triggered law is constructed to make the mapping contractive such that the stabilization is achieved and an easy-to-check Zeno free condition is provided. Within this framework, we develop a theorem for the event-triggered control of interconnected nonlinear systems which is employed to solve the event-triggered control for lower-triangular systems with dynamic uncertainties. (C) 2021 Elsevier Ltd. All rights reserved.
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页数：9
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