Robust control of a class of uncertain first-order systems with least prior knowledge

被引：8

作者：

Alvarez-Ramirez, J ^{[1
]}

Femat, R ^{[1
]}

Gonzalez-Trejo, J ^{[1
]}

机构：

[1] Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Proc, Div Ciencias Basicas & Ingn, Mexico City 09000, DF, Mexico

来源：

CHEMICAL ENGINEERING SCIENCE | 1998年 / 53卷 / 15期

关键词：

robust control; uncertainties; dynamic compensation; temperature regulation; one-point distillation control;

D O I：

10.1016/S0009-2509(98)00096-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this work we deal with robust control of a class of first-order nonlinear systems which contain uncertainties. To cope with the uncertainties, an observer-based controller is proposed, and the uniform boundedness of all closed-loop signals and semiglobal practical convergence of the system state are guaranteed. In contrast with some previous attempts to relax the a priori knowledge on uncertainties bounds by using discontinuous control law, we propose a dynamic compensator which leads to continuous control laws. The applicability of the control scheme to regulation of temperature in stirred tanks and one-point control in distillation is shown by numerical simulations. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2701 / 2710

页数：10

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[2]

[Anonymous], 1968, NONLINEAR DIFFERENTI

[3]

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