Event-triggered equivalent-input-disturbance estimation and control for disturbance attenuation

被引：2
|
作者：
Ma, Guoqi [1 ]
Pagilla, Prabhakar R. [1 ]
机构：
[1] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA
来源：
IFAC JOURNAL OF SYSTEMS AND CONTROL | 2021年 / 16卷
基金：
美国国家科学基金会;
关键词：
Event-triggered; Disturbance attenuation; Output regulation; Internal model; Equivalent-input-disturbance estimation; REPETITIVE CONTROL; OUTPUT-FEEDBACK; SYSTEMS; REJECTION; DELAY; STABILITY;
D O I：
10.1016/j.ifacsc.2021.100137
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel three-channel event-triggered equivalent-input-disturbance (EID) estimation approach is proposed for active exogenous disturbance rejection in linear systems. The overall system governing equations consisting of the physical plant, disturbance estimator, internal model, and event-triggering mechanisms (ETMs) are modeled as an augmented closed-loop system with multiple time-varying delays using an input delay method. Sufficient conditions for asymptotic stability of the augmented closed-loop system are derived together with a procedure for co-designing the controller and state observer gains and the ETM parameters that satisfy the sufficient conditions for asymptotic stability. Numerical simulations on a DC motor system are provided to illustrate the effectiveness and potential of the proposed design approach. (C) 2021 Elsevier Ltd. All rights reserved.
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页数：8
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