Fault monitoring and fault recovery control for position-moored vessels

• Autorzy: Fang S. , Blanke M.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

fault diagnosis; fault tolerant control; fault recovery; position mooring; non Gaussian change detection

PL

diagnostyka uszkodzeń; sterowanie tolerujące uszkodzenia; usuwanie błędu; wykrywanie zmian

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2011
• Tom: Vol. 21, no 3
• Strony: 467--478
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Fang S.

autor

Blanke M.

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

Bibliografia

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