Recoil suppression of deepwater drilling riser systems via static output feedback control with memory

反冲 控制理论(社会学) 钻井隔水管 控制器(灌溉) 流离失所(心理学) 工程类 全状态反馈 反馈控制器 计算机科学 钻探 机械工程 物理 控制(管理) 人工智能 农学 生物 心理治疗师 量子力学 心理学
作者
Bao‐Lin Zhang,Zhihui Cai,Wei Zhang,Feng-Bin Pang,Qing‐Long Han,Xian-Ming Zhang
出处
期刊:Ocean Engineering [Elsevier BV]
卷期号:271: 113691-113691 被引量:12
标识
DOI:10.1016/j.oceaneng.2023.113691
摘要

In the dangerous ocean situations, the deepwater drilling riser needs evacuate emergently to guarantee the safety of the structures. The bottom equipment of the lower marine riser package should be disconnected from the blowout preventer timely. In this case, the recoil response of the riser occurs, which may lead to potential safety risks of the structure. This paper deals with the recoil suppression control problem of a deepwater drilling riser system via static output feedback recoil control scheme with memory. First, for the riser-tensioner system subject to the friction resistance of drilling discharge and the heave motion of platform, a static output feedback recoil controller with both current and delayed output signals of the system is proposed. Then, the existence conditions and design algorithm of the static output feedback recoil controller are derived. The gain matrices of the recoil controller can be obtained by solving linear matrices inequalities. It is found through simulation results that (i) the static output feedback recoil controllers with and without memory are effective to reduce the recoil responses of the riser; and (ii) to design the applicable output feedback recoil controllers, the displacement and velocity signals of the first mass block of the riser are required, and specifically, the velocity signal of the first mass block is indispensable; and (iii) the output feedback recoil controllers with memory provide more implementation options, and practically better than the ones without memory and some existing full state feedback recoil controllers.
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