文章基本信息

标题：Supervisory Control of Line Breakage for Thruster-Assisted Position Mooring System
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作者：Zhengru Ren ; Roger Skjetne ; Vahid Hassani 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2015
卷号：48
期号：16
页码：235-240
DOI：10.1016/j.ifacol.2015.10.286
语种：English
出版社：Elsevier
摘要：AbstractThruster-assisted position mooring (TAPM) is an energy-efficient and reliable stationkeeping method for deep water structures. Mooring line breakage can significantly influence the control system, and ultimately reduce the reliability and safety during operation and production. Therefore, line break detection is a crucial issue for TAPM systems. Tension measurement units are useful tools to detect line failures. However, these units increase the building cost of the system, and in a large portion of existing units in operation line tension sensors are not installed. This paper presents a fault-tolerant control scheme based on estimator-based supervisory control methodology to detect and isolate a line failure with only position measurements. After detecting a line break, a supervisor switches automatically a new controller into the feedback loop to keep the vessel within the safety region. Numerical simulations are conducted to verify the performance of the proposed technique, for a turret-based mooring system.
关键词：KeywordsThruster-Assisted Position MooringSupervisory ControlTAPMMooring Line BreakageFault Diagnosis