A general H ∞ fault tolerant control and management for a linear system with actuator faults


Journal Article

This brief paper investigates the optimal selection of online controllers for a linear system with actuator faults in the framework of H ∞ control. The occurrence of actuator faults is modeled as a Markov chain to predict future faults. A compatible relationship of H ∞ controllers is proposed for successive fault modes. In order to shrink the set of all H ∞ controllers, seven methods are presented to construct a small set of controllers for different demands. Then five selection schemes are proposed to choose a proper controller from a given set of controllers for a given fault mode. Another selection scheme and a pre-selection scheme are presented when there might be false fault detection and identification. Considered together, they provide a powerful solution for all kinds of demands. A motivating example is used to illustrate the proposed methods. © 2012 Elsevier Ltd. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Liu, L; Shen, Y; Dowell, EH; Zhu, C

Published Date

  • August 1, 2012

Published In

Volume / Issue

  • 48 / 8

Start / End Page

  • 1676 - 1682

International Standard Serial Number (ISSN)

  • 0005-1098

Digital Object Identifier (DOI)

  • 10.1016/j.automatica.2012.05.018

Citation Source

  • Scopus