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Fault estimation for a class of discrete-time nonlinear systems

  • School of Astronautics, Harbin Institute of Technology
  • Université de Lyon
  • Université de Lorraine

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

Abstract

This paper deals with actuator fault estimation for a class of discrete-time nonlinear systems whose linear part is described by a Linear Parameter-Varying (LPV) form and nonlinear term is Lipschitz. In this paper, an augmented system is constructed by considering the fault as an auxiliary state vector. Then, a robust fault estimation observer is designed based on the augmented system. The proposed fault estimation observer is able to attenuate the effect of the fault variation and measurement noise and the observer design is formulated as a Linear Matrix Inequality (LMI) feasibility problem, which can be easily solved. Finally, a missile model is used to demonstrate the effectiveness of the proposed method.

Original languageEnglish
Title of host publication19th IFAC World Congress IFAC 2014, Proceedings
EditorsEdward Boje, Xiaohua Xia
PublisherIFAC Secretariat
Pages8018-8023
Number of pages6
ISBN (Electronic)9783902823625
DOIs
StatePublished - 2014
Externally publishedYes
Event19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 - Cape Town, South Africa
Duration: 24 Aug 201429 Aug 2014

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
Volume19
ISSN (Print)1474-6670

Conference

Conference19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014
Country/TerritorySouth Africa
CityCape Town
Period24/08/1429/08/14

Keywords

  • Actuator fault estimation
  • Linear Matrix Inequality (LMI)
  • Linear Parameter-Varying (LPV)
  • Nonlinear systems
  • Observer design

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