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Design and Reliability Analysis of DP-3 Dynamic Positioning Control Architecture
Abstract：As the exploration and exploitation of oil and gas proliferate throughout deepwater area,the requirements on the reliability of dynamic positioning system become increasingly stringent.The control objective ensuring safety operation at deep water will not be met by a single controller for dynamic positioning.In order to increase the availability and reliability of dynamic positioning control system,the triple redundancy hardware and software control architectures were designed and developed according to the safe specifications of DP-3 classification notation for dynamically positioned ships and rigs.The hardware redundant configuration takes the form of triple-redundant hot standby configuration including three identical operator stations and three real-time control computers which connect each other through dual networks.The function of motion control and redundancy management of control computers were implemented by software on the real-time operating system VxWorks.The software realization of task loose synchronization,majority voting and fault detection were presented in details.A hierarchical software architecture was planed during the development of software,consisting of application layer,real-time layer and physical layer.The behavior of the DP-3 dynamic positioning control system was modeled by a Markov model to analyze its reliability.The effects of variation in parameters on the reliability measures were investigated.The time domain dynamic simulation was carried out on a deepwater drilling rig to prove the feasibility of the proposed control architecture. 作者： Author： WANG Fang WAN Lei JIANG Da-peng XU Yu-ru 作者单位： State Key Lab of A UV, Harbin Engineering University, 150001 Harbin, China 期 刊： 中国海洋工程（英文版） ISTICEISCI Journal： China Ocean Engineering 年，卷(期)： 2011, 25(4) 分类号： U664.82 Keywords： DP-3 dynamic positioning system reliability triple redundancy motion control redundancy management 机标分类号： TP3 TP2 机标关键词： Control Architecture Dynamic Positioning Reliability Analysis dynamic positioning control system reliability development of software real-time software architecture redundancy management dynamic simulation computers application layer software control operating system fault detection motion control classification Markov model drilling rig 基金项目： the National Natural Science Foundation of China，the National High Technology Development Program of China Design and Reliability Analysis of DP-3 Dynamic Positioning Control Architecture[期刊论文] 中国海洋工程（英文版） --2011, 25(4)As the exploration and exploitation of oil and gas proliferate throughout deepwater area,the requirements on the reliability of dynamic positioning system become increasingly stringent.The control obje...【Design and Reliability Analysis of D】相关文章：
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