<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>This paper addresses fault-tolerant control for position mooring of a shuttle or floating production storage and offloading vessels. A complete framework for fault diagnosis is presented. A loss of a sub-sea mooring line buoyancy element and line breakage are given particular attention, since such failures might cause high-risk abortion of an oil-loading operation. With significant drift forces from waves, non-Gaussian elements dominate forces and the residuals designed for fault diagnosis. Hypothesis testing is designed using dedicated change detection for the type of distribution encountered. A new position recovery algorithm is proposed as a means of fault accommodation in order to keep the mooring system in a safe state, despite faults. The position control is shown to be capable of accommodating serious failures and preventing breakage of a mooring line, or a loss of a buoyancy element, from causing subsequent failures. Properties of the detection and fault-tolerant control algorithms are demonstrated by high fidelity simulations.</p></abstract>

This paper addresses fault-tolerant control for position mooring of a shuttle or floating production storage and offloading vessels. A complete framework for fault diagnosis is presented. A loss of a sub-sea mooring line buoyancy element and line breakage are given particular attention, since such failures might cause high-risk abortion of an oil-loading operation. With significant drift forces from waves, non-Gaussian elements dominate forces and the residuals designed for fault diagnosis. Hypothesis testing is designed using dedicated change detection for the type of distribution encountered. A new position recovery algorithm is proposed as a means of fault accommodation in order to keep the mooring system in a safe state, despite faults. The position control is shown to be capable of accommodating serious failures and preventing breakage of a mooring line, or a loss of a buoyancy element, from causing subsequent failures. Properties of the detection and fault-tolerant control algorithms are demonstrated by high fidelity simulations.

Fault monitoring and fault recovery control for position-moored vessels

Centre for Ships and Ocean Structures, Norwegian University of Science and Technology, Otto Nielsens Vei 10, NO 7491 Trondheim, Norway

Automation and Control Group, Department of Electrical Engineering, Technical University of Denmark, Elektrovej build. 326, DK 2800 Kgs Lyngby, Denmark

International Journal of Applied Mathematics and Computer Science

{"article-title":"Fault monitoring and fault recovery control for position-moored vessels"}

This paper addresses fault-tolerant control for position mooring of a shuttle or floating production storage and offloading vessels. A complete framework for...

Fault monitoring and fault recovery control for position-moored vessels

Published Online: Sep 22, 2011

Page range: 467 - 478

DOI: https://doi.org/10.2478/v10006-011-0035-9

Keywords
fault diagnosis, fault-tolerant control, fault recovery, position mooring, non-Gaussian change detection

This content is open access.

Fault monitoring and fault recovery control for position-moored vessels

Published Online: Sep 22, 2011

Page range: 467 - 478

DOI: https://doi.org/10.2478/v10006-011-0035-9

Keywordsfault diagnosis, fault-tolerant control, fault recovery, position mooring, non-Gaussian change detection

This content is open access.

Keywords
fault diagnosis, fault-tolerant control, fault recovery, position mooring, non-Gaussian change detection