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Active Fault Diagnosis via Reachable Set Separation using Interval Methods

Tsiakkas, M; Sopasakis, P; Boem, F; Panayiotou, C; Polycarpou, M; (2019) Active Fault Diagnosis via Reachable Set Separation using Interval Methods. In: Proceedings of the 2019 18th European Control Conference (ECC). (pp. pp. 4374-4379). IEEE: Naples, Italy. Green open access

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Abstract

This paper presents an optimization-based approach for active fault isolation in linear time invariant systems subject to additive disturbances which are bounded in intervals. We model the evolution of the system states and outputs using interval dynamics with the input signals also bounded within given intervals. The proposed approach is based on determining a sequence of control actions to minimize a function which quantifies the overlap of output intervals, while taking into account the prescribed input bounds. The resulting optimization problem is nonconvex, yet the cost function has Lipschitz-continuous gradient and the constraints are simple, which allows us to solve them efficiently. A numerical example is used to illustrate the implementation and suitability of the proposed optimization approach for active fault isolation.

Type: Proceedings paper
Title: Active Fault Diagnosis via Reachable Set Separation using Interval Methods
Event: 2019 18th European Control Conference (ECC)
ISBN-13: 978-3-907144-00-8
Open access status: An open access version is available from UCL Discovery
DOI: 10.23919/ECC.2019.8796074
Publisher version: https://doi.org/10.23919/ECC.2019.8796074
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10073626
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