A Sliding Mode Observer for Infinitely Unobservable Descriptor Systems

Jeremy Hor Teong Ooi, Chee Pin Tan, Surya Girinatha Nurzaman, Kok Yew Ng

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

In existing work of sliding mode observers (SMOs) for descriptor systems, a necessary condition is that the system must be infinitely observable. This paper presents a scheme that circumvents that condition, by reformulating the system as a reduced-order system where certain structures in the system matrix are manipulated and certain states are treated as unknown inputs. Following that, an SMO is implemented on the reduced-order system where state and fault estimation can be achieved. Necessary and sufficient conditions of this scheme are also presented. Finally, a simulation example shows the effectiveness of the proposed scheme.
LanguageEnglish
Pages3580-3587
JournalIEEE Transactions on Automatic Control
Volume62
Issue number7
Early online date8 Feb 2017
DOIs
Publication statusPublished - 26 Jun 2017

Keywords

  • Estimation
  • fault detection
  • linear systems
  • sliding mode observers (SMOs)

Cite this

Ooi, Jeremy Hor Teong ; Tan, Chee Pin ; Nurzaman, Surya Girinatha ; Ng, Kok Yew. / A Sliding Mode Observer for Infinitely Unobservable Descriptor Systems. 2017 ; Vol. 62, No. 7. pp. 3580-3587.
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A Sliding Mode Observer for Infinitely Unobservable Descriptor Systems. / Ooi, Jeremy Hor Teong; Tan, Chee Pin; Nurzaman, Surya Girinatha; Ng, Kok Yew.

Vol. 62, No. 7, 26.06.2017, p. 3580-3587.

Research output: Contribution to journalArticle

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