High-order sliding-mode observation and fault detection via weakly unobservable subspace reconstruction

Leonid Fridman, Jorge Davila, Arie Levant

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A high-order sliding-mode observer is designed for linear time invariant systems with bounded unknown inputs. It provides the global observation of the state under sufficient and necessary conditions of strong observability or strong detectability. The observation is finite-time-convergent and exact in the strongly observable case and asymptotically exact in the strongly detectable case. An unknown input identification algorithm is proposed with finite time convergence for the strongly observable case, and asymptotic convergence for the strongly detectable case. Necessary and sufficient conditions for unknown input identification are given. The unknown input identification algorithm is applied for fault detection. The case of sensor-faults detection is considered without filtration.

Original languageEnglish
Title of host publication2007 European Control Conference, ECC 2007
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5139-5146
Number of pages8
ISBN (Electronic)9783952417386
DOIs
StatePublished - 2007
Event2007 9th European Control Conference, ECC 2007 - Kos, Greece
Duration: 2 Jul 20075 Jul 2007

Publication series

Name2007 European Control Conference, ECC 2007

Conference

Conference2007 9th European Control Conference, ECC 2007
Country/TerritoryGreece
CityKos
Period2/07/075/07/07

Fingerprint

Dive into the research topics of 'High-order sliding-mode observation and fault detection via weakly unobservable subspace reconstruction'. Together they form a unique fingerprint.

Cite this