New results in disturbance decoupled fault reconstruction in linear uncertain systems using two sliding mode observers in cascade

Kok Yew Ng; Chee Pin Tan

doi:10.3182/20090630-4-ES-2003.0298

New results in disturbance decoupled fault reconstruction in linear uncertain systems using two sliding mode observers in cascade

Kok Yew Ng, Chee Pin Tan

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper presents a disturbance decoupled fault reconstruction (DDFR) scheme using two sliding mode observers in cascade. Measurable signals from the first observer are found to be the output of a fictitious system that is driven by the fault and disturbances. Then the signals are fed into a second observer which will reconstruct the fault. It is found that this scheme will enable DDFR to be achieved for a wider class of systems compared to previous work of using one single observer. A simulation example validates the claims made in this paper.

Original language	English
Title of host publication	SAFEPROCESS'09 - 7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, Proceedings
Pages	780-785
Number of pages	6
DOIs	https://doi.org/10.3182/20090630-4-ES-2003.0298
Publication status	Published (in print/issue) - 1 Dec 2009
Event	7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09 - Barcelona, Spain Duration: 30 Jun 2009 → 3 Jul 2009

Conference

Conference	7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09
Country/Territory	Spain
City	Barcelona
Period	30/06/09 → 3/07/09

Keywords

Disturbance rejection
Fault diagnosis
Sliding mode observers

Access to Document

10.3182/20090630-4-ES-2003.0298

Cite this

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title = "New results in disturbance decoupled fault reconstruction in linear uncertain systems using two sliding mode observers in cascade",

abstract = "This paper presents a disturbance decoupled fault reconstruction (DDFR) scheme using two sliding mode observers in cascade. Measurable signals from the first observer are found to be the output of a fictitious system that is driven by the fault and disturbances. Then the signals are fed into a second observer which will reconstruct the fault. It is found that this scheme will enable DDFR to be achieved for a wider class of systems compared to previous work of using one single observer. A simulation example validates the claims made in this paper.",

keywords = "Disturbance rejection, Fault diagnosis, Sliding mode observers",

author = "Ng, {Kok Yew} and Tan, {Chee Pin}",

year = "2009",

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doi = "10.3182/20090630-4-ES-2003.0298",

language = "English",

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note = "7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09 ; Conference date: 30-06-2009 Through 03-07-2009",

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Ng, KY & Tan, CP 2009, New results in disturbance decoupled fault reconstruction in linear uncertain systems using two sliding mode observers in cascade. in SAFEPROCESS'09 - 7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, Proceedings. pp. 780-785, 7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09, Barcelona, Spain, 30/06/09. https://doi.org/10.3182/20090630-4-ES-2003.0298

New results in disturbance decoupled fault reconstruction in linear uncertain systems using two sliding mode observers in cascade. / Ng, Kok Yew; Tan, Chee Pin.
SAFEPROCESS'09 - 7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, Proceedings. 2009. p. 780-785.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Y1 - 2009/12/1

N2 - This paper presents a disturbance decoupled fault reconstruction (DDFR) scheme using two sliding mode observers in cascade. Measurable signals from the first observer are found to be the output of a fictitious system that is driven by the fault and disturbances. Then the signals are fed into a second observer which will reconstruct the fault. It is found that this scheme will enable DDFR to be achieved for a wider class of systems compared to previous work of using one single observer. A simulation example validates the claims made in this paper.

AB - This paper presents a disturbance decoupled fault reconstruction (DDFR) scheme using two sliding mode observers in cascade. Measurable signals from the first observer are found to be the output of a fictitious system that is driven by the fault and disturbances. Then the signals are fed into a second observer which will reconstruct the fault. It is found that this scheme will enable DDFR to be achieved for a wider class of systems compared to previous work of using one single observer. A simulation example validates the claims made in this paper.

KW - Disturbance rejection

KW - Fault diagnosis

KW - Sliding mode observers

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EP - 785

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T2 - 7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09

Y2 - 30 June 2009 through 3 July 2009

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New results in disturbance decoupled fault reconstruction in linear uncertain systems using two sliding mode observers in cascade

Abstract

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Keywords

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Advancements in robust fault reconstruction using sliding mode observers

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