High-gain observers with limited gain power for systems with observability canonical form

被引：36

作者：

Wang, Lei ^{[1
]}

Astolfi, Daniele ^{[2
,3
]}

Marconi, Lorenzo ^{[2
]}

Su, Hongye ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Cyber Syst & Control, State Key Lab Ind Control Technol, Hangzhou, Zhejiang, Peoples R China

[2] Univ Bologna, CASY, DEI, Bologna, Italy

[3] PSL Res Univ, MINES ParisTech, CAS, Paris, France

来源：

AUTOMATICA | 2017年 / 75卷

关键词：

Observability canonical form; High-gain observers; Nonlinear separation principle; OUTPUT-FEEDBACK STABILIZATION; SEMIGLOBAL STABILIZATION;

D O I：

10.1016/j.automatica.2016.09.006

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We consider the problem of state observation for systems having a well-defined observability canonical form (Gauthier and Kupka (2004)) by means of high-gain observers. The main goal is to show that, for this class of systems, observers can be designed with the high-gain parameter powered just up to the order 2 regardless the dimension of the state system. In this way we substantially overtake the main limitations of standard design procedures in which the high-gain parameter is powered up to the order of the system. The observer structure, which generalizes the ideas presented in Astolfi and Marconi (2015), can be used in all those contexts where fast state observation is required, such as in the design of output feedback stabilizers by means of the nonlinear separation principle that is also specifically addressed in the paper. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：16 / 23

页数：8

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