Title: Fault-tolerant observer design with a tolerance measure for systems with sensor failures
Authors : Zhang, Cong
Jaimoukha, Imad M.
Segundo Sevilla, Felix Rafael
Proceedings: 2016 American Control Conference (ACC)
Pages : 7523
Pages to: 7528
Conference details: 2016 American Control Conference (ACC), Boston, USA, 6-8 July 2016
Publisher / Ed. Institution : IEEE
Issue Date: 2016
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subject (DDC) : 003: Systems
Abstract: A fault-tolerant switching observer design methodology is proposed. The aim is to maintain a desired level of closed-loop performance under a range of sensor fault scenarios while the fault-free nominal performance is optimized. The range of considered fault scenarios is determined by a minimum number p of assumed working sensors. Thus the smaller p is, the more fault tolerant is the observer. This is then used to define a fault tolerance measure for observer design. Due to the combinatorial nature of the problem, a semidefinite relaxation procedure is proposed to deal with the large number of fault scenarios for systems that have many vulnerable sensors. The procedure results in a significant reduction in the number of constraints needed to solve the problem. Two numerical examples are presented to illustrate the effectiveness of the fault-tolerant observer design.
Departement: School of Engineering
Organisational Unit: Institute of Energy Systems and Fluid Engineering (IEFE)
Publication type: Conference Paper
DOI : 10.1109/ACC.2016.7526861
ISBN: 978-1-4673-8682-1
ISSN: 2378-5861
URI: https://digitalcollection.zhaw.ch/handle/11475/13424
Appears in Collections:Publikationen School of Engineering

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