An adaptive control scheme for systems with unknown actuator failures

被引：121

作者：

Tao, G ^{[1
]}

Chen, SH

Joshi, SM

机构：

[1] Univ Virginia, Dept Elect & Comp Engn, Charlottesville, VA 22903 USA

[2] NASA, Langley Res Ctr, Hampton, VA 23681 USA

来源：

AUTOMATICA | 2002年 / 38卷 / 06期

关键词：

actuator failure; adaptive control; plant-model output matching; state feedback; output tracking;

D O I：

10.1016/S0005-1098(02)00018-3

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 state feedback output tracking adaptive control scheme is developed for plants with actuator failures characterized by the failure pattern that some inputs are stuck at some unknown fixed values at unknown time instants. New controller parametrization and adaptive law are developed under some relaxed system conditions. All closed-loop signals are bounded and the plant output tracks a given reference output asymptotically, despite the uncertainties in actuator failures and plant parameters. Simulation results verify the desired adaptive control system performance in the presence of actuator failures. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1027 / 1034

页数：8

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