PRACTICAL STABILIZATION OF A CLASS OF NONLINEAR-SYSTEMS WITH PARTIALLY KNOWN UNCERTAINTIES

被引：47

作者：

BROGLIATO, B ^{[1
]}

NETO, AT ^{[1
]}

机构：

[1] UNIV FED SANTA CATARINA,DEPT ELECT ENGN,LCMI,BR-88049 FLORIANOPOLIS,SC,BRAZIL

来源：

AUTOMATICA | 1995年 / 31卷 / 01期

关键词：

UNCERTAIN SYSTEMS; UNKNOWN UNCERTAINTIES; PRACTICAL STABILIZATION;

D O I：

10.1016/0005-1098(94)E0050-R

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper we deal with robust control of a class of nonlinear systems which contain uncertainties. It can be viewed as an extension of the work in Corless and Leitmann [IEEE Trans. Autom. Control, AC-26, 1139-1144 (1981)] for the cases where the vector of uncertainties is only partially known. To cope with the uncertainties, an adaptive controller using a dead-zone and a hysteresis function is proposed, and both the uniform boundedness of all the closed-loop signals and uniform ultimate boundedness of the system state are guaranteed. In contrast with some previous attempts to relax the a priori knowledge on the uncertainties bounds by using a discontinuous control law, we propose continuous control laws in this paper. Hence, chattering problems (which have practical importance) can be avoided.

引用

页码：145 / 150

页数：6

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