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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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