Abstract
Development of fault-tolerant control systems is crucial to maintain safe operation of offshore installations. The objective of this paper is to develop a fault- tolerant control for thruster-assisted position mooring (PM) system with faults occurring in the mooring lines. Faults in line's pretension or line breaks will degrade the performance of the positioning of the vessel. Faults are detected and isolated through fault diagnosis procedures. When faults are detected, they are accommodated through the control action in which only parameters of the controlled plant have to be updated to cope with the faulty condition. Simulations are carried out to verify the advantages of the fault-tolerant control strategy for a PM system.
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