Publication type: | Article in scientific journal |
Type of review: | Peer review (publication) |
Title: | A semidefinite relaxation procedure for fault-tolerant observer design |
Authors: | Segundo Sevilla, Felix Rafael Jaimoukha, Imad Chaudhuri, Balarko Korba, Petr |
DOI: | 10.1109/TAC.2015.2418681 |
Published in: | IEEE Transactions on Automatic Control |
Volume(Issue): | 60 |
Issue: | 12 |
Page(s): | 3332 |
Pages to: | 3337 |
Issue Date: | 2015 |
Publisher / Ed. Institution: | IEEE |
ISSN: | 0018-9286 1558-2523 |
Language: | English |
Subject (DDC): | 621.3: Electrical, communications, control engineering |
Abstract: | A fault-tolerant observer design methodology is proposed. The aim is to guarantee a minimum level of closed-loop performance under all possible sensor fault combinations while optimizing performance under the nominal, fault-free condition. A novel approach is proposed to tackle the combinatorial nature of the problem, which is computationally intractable even for a moderate number of sensors, by recasting the problem as a robust performance problem, where the uncertainty set is composed of all combinations of a set of binary variables. A procedure based on an elimination lemma and an extension of a semidefinite relaxation procedure for binary variables is then used to derive sufficient conditions (necessary and sufficient in the case of one binary variable) for the solution of the problem which significantly reduces the number of matrix inequalities needed to solve the problem. The procedure is illustrated by considering a fault-tolerant observer switching scheme in which the observer outputs track the actual sensor fault condition. A numerical example from an electric power application is presented to illustrate the effectiveness of the design. |
URI: | https://digitalcollection.zhaw.ch/handle/11475/1720 |
Fulltext version: | Published version |
License (according to publishing contract): | Licence according to publishing contract |
Departement: | School of Engineering |
Organisational Unit: | Institute of Energy Systems and Fluid Engineering (IEFE) |
Appears in collections: | Publikationen School of Engineering |
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Segundo Sevilla, F. R., Jaimoukha, I., Chaudhuri, B., & Korba, P. (2015). A semidefinite relaxation procedure for fault-tolerant observer design. IEEE Transactions on Automatic Control, 60(12), 3332–3337. https://doi.org/10.1109/TAC.2015.2418681
Segundo Sevilla, F.R. et al. (2015) ‘A semidefinite relaxation procedure for fault-tolerant observer design’, IEEE Transactions on Automatic Control, 60(12), pp. 3332–3337. Available at: https://doi.org/10.1109/TAC.2015.2418681.
F. R. Segundo Sevilla, I. Jaimoukha, B. Chaudhuri, and P. Korba, “A semidefinite relaxation procedure for fault-tolerant observer design,” IEEE Transactions on Automatic Control, vol. 60, no. 12, pp. 3332–3337, 2015, doi: 10.1109/TAC.2015.2418681.
SEGUNDO SEVILLA, Felix Rafael, Imad JAIMOUKHA, Balarko CHAUDHURI und Petr KORBA, 2015. A semidefinite relaxation procedure for fault-tolerant observer design. IEEE Transactions on Automatic Control. 2015. Bd. 60, Nr. 12, S. 3332–3337. DOI 10.1109/TAC.2015.2418681
Segundo Sevilla, Felix Rafael, Imad Jaimoukha, Balarko Chaudhuri, and Petr Korba. 2015. “A Semidefinite Relaxation Procedure for Fault-Tolerant Observer Design.” IEEE Transactions on Automatic Control 60 (12): 3332–37. https://doi.org/10.1109/TAC.2015.2418681.
Segundo Sevilla, Felix Rafael, et al. “A Semidefinite Relaxation Procedure for Fault-Tolerant Observer Design.” IEEE Transactions on Automatic Control, vol. 60, no. 12, 2015, pp. 3332–37, https://doi.org/10.1109/TAC.2015.2418681.
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