Korbicz, Józef (1951- ) - red. ; Uciński, Dariusz - red.
Title:Fault monitoring and fault recovery control for position-moored vessels
Group publication title: Subject and Keywords:fault diagnosis ; fault-tolerant control ; fault recovery ; position mooring ; non-Gaussian change detection
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.
Publisher:Zielona Góra: Uniwersytet Zielonogórski
Date: Resource Type: DOI: Pages: Source:AMCS, Volume 21, Number 3 (2011) ; click here to follow the link
Language: License CC BY 4.0: Rights: