Robust fault-tolerant self-recovering control of nonlinear uncertain systems

    Authors

    Z. H. Qu; C. M. Ihlefeld; Y. F. Jin;A. Saengdeejing

    Comments

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    Abbreviated Journal Title

    Automatica

    Keywords

    fault-tolerant control; self-recovering; Lyapunov direct method; OUTPUT-FEEDBACK CONTROL; DYNAMIC-SYSTEMS; STABILIZATION; INPUT; Automation & Control Systems; Engineering, Electrical & Electronic

    Abstract

    In this paper, the problem of devising a fault-tolerant robust control for a class of nonlinear uncertain systems is investigated. Possible failures of the sensor measuring the state variables are considered, and a robust measure is developed to identify the stability- and performance-vulnerable failures. Based on evaluation of the robust measure, a fault-tolerant robust control will switch itself between one robust control strategy designed under normal operation and another under the faulty condition. It is shown that, under two input-to-state stability conditions, the proposed scheme guarantees not only the desired performance under normal operations but also robust stability and best achievable performance when there is a sensor failure of any kind. (C) 2003 Elsevier Ltd. All rights reserved.

    Journal Title

    Automatica

    Volume

    39

    Issue/Number

    10

    Publication Date

    1-1-2003

    Document Type

    Article

    Language

    English

    First Page

    1763

    Last Page

    1771

    WOS Identifier

    WOS:000185273900008

    ISSN

    0005-1098

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