Passive Fault-tolerant Control of Discrete-time Piecewise Affine Systems against Actuator Faults

Seyed Mojtaba Tabatabaeipour, Roozbeh Izadi-Zamanabadi, Thomas Bak, Anders Peter Ravn

Research output: Contribution to journalJournal articleResearchpeer-review

32 Citations (Scopus)

Abstract

In this paper, we propose a new method for passive fault-tolerant control of discrete time piecewise affine systems. Actuator faults are considered. A reliable piecewise linear quadratic regulator (LQR) state feedback is designed such that it can tolerate actuator faults. A sufficient condition for the exis- tence of a passive fault-tolerant controller is derived and formulated as the feasibility of a set of linear matrix inequalities (LMIs). The upper bound on the performance cost can be minimized using a convex optimization problem with LMI constraints which can be solved efficiently. The approach is illustrated on a numerical example and a two degree of freedom helicopter.
Original languageEnglish
JournalInternational Journal of Systems Science
Volume43
Issue number11
Pages (from-to)1985-1997
Number of pages13
ISSN0020-7721
DOIs
Publication statusPublished - Nov 2012

Keywords

  • Piecewise affine systems
  • Passive fault tolerant control
  • Actuator fault
  • Discrete time systems
  • Guaranteed cost control

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