Double-mode robust model predictive control of ship dynamic positioning system based on event-triggered mechanism

Luan, Tiantian; Tan, Zhenggang; Sun, Mingxuan; Wang, Haibin; Li, Mingyang; Yao, Hanhong

doi:10.1016/j.oceaneng.2023.115536

Cited by 6 publications

(3 citation statements)

References 28 publications

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“…In addition, model predictive control (MPC), which considers various constraints and excels in handling complex systems and rolling optimization, plays a crucial role. Linear MPC-based DP control schemes have been extensively developed and successfully applied in practical marine engineering [76,[94][95][96][97][98][99][100][101]. Furthermore, to enhance the robustness of MPC DP controllers, tube-MPC schemes have been proposed [102].…”

Section: Optimal Control Designmentioning

confidence: 99%

Dynamic Positioning Control for Marine Crafts: A Survey and Recent Advances

Gao,

2024

JMSE

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This paper surveys the recent advances in dynamic positioning (DP) control for marine crafts. DP of marine crafts means that a craft can maintain a fixed position and heading, or move along a predetermined trajectory slowly without the anchoring system, using only its own thruster system to counteract ocean disturbances. The survey is by no means exhaustive but provides a survey of some of the major technological advancements in DP controller design over the years of research and development. Firstly, the model of marine crafts and some difficult problems in DP control are introduced including the impact of multiple source disturbance, unavailable velocity measurement information, resource conservation and performance optimization, destabilizing impact of faults and network security and compound multi-constraint restrictions. Then, the DP control schemes in recent years are summarized and classified in detail. Finally, some theoretical and technical problems are proposed, including online data-driven model-free control, man–machine combination intelligent control and composite hierarchical anti-disturbance control to guide future investigations.

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Section: Optimal Control Designmentioning

confidence: 99%

Dynamic Positioning Control for Marine Crafts: A Survey and Recent Advances

Gao,

2024

JMSE

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“…The ship can accommodate 15 crew members and 30 students. Considering the needs of scientific research, three cabins are set up for scientific researchers to use, and there are five long-term scientific researchers on board [3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Intelligent Research and Practical Training Dual-use Vessel ...mentioning

confidence: 99%

Power Positioning System Control Study of “Intelligent Research and Internship Vessel” Based on Terminal Sliding Mode

Wei,

He,

et al. 2024

Applied Sciences

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As most of the current dynamic positioning systems are based on model ships, they cannot accurately reflect the motion state, position changes, and mutual influence of each part of the dynamic positioning system of actual ships in complex environments. Other actual ships such as cargo ships cannot add various sensors and auxiliary equipment to verify and analyze the positioning system. This article takes the intelligent research and training dual-use ship of Dalian Maritime University, which integrates scientific research and training, as the object of study. This ship will not be affected by the voyage period and route and can choose a suitable sea area for research. Therefore, in order to improve the accuracy and reliability of the dynamic positioning system, research on the ship’s dynamic positioning system was carried out. Firstly, an accurate mathematical model was developed to simulate ship motion, focusing on the use of the Dalian Maritime University’s intelligent and practical training dual-purpose vessel as the modeling object. Through this approach, a more detailed understanding of the effects of actual environmental perturbations on ship control and positioning can be obtained, as well as more realistic ship control and positioning results. The hydrodynamic derivatives of ship model motion were obtained by numerical calculation and applied to the three-degree-of-freedom model of the intelligent research and training dual-use ship. Then, the model was used as part of the closed-loop simulation model of the ship’s dynamic positioning system, and the terminal sliding mode controller was used for simulation and emulation, thereby obtaining ideal simulation test results. Our results deepen the understanding of DPS accuracy and are consistent with the theory of terminal slip modes for ship power positioning control systems. This has implications for improving the accuracy of ship power positioning systems, as previously discussed in previous authors. In conclusion, this study not only improves the accuracy and reliability of the DPS but also proposes the use of the terminal slip film for a ship power positioning control system modeled on the Dalian Maritime University intelligent and practical dual-purpose vessel. These contributions are significant in improving the efficiency, safety, and environmental sustainability of ship operations.

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“…Dalian Maritime University Intelligent Research and Training Ship function is "ship intelligent research + student teaching and training", is around the national strategic needs, the formation of leading intelligent ship cutting-edge technology, related equipment and system testing and experimental research, as well as intelligent shipping under the new mode of talent training integration of intelligent research and training ship. Each time, it can arrange 30 students for practical training and 5 researchers for scientific research test, plus the number of crew members (15) to ensure the normal operation of the ship, which belongs to the special-purpose ship. This ship not only meets the needs of teaching and practical training, but also has the more important function of becoming an open research platform to study ship intelligence and then realise unmanned ship.…”

Section: Intelligent Research and Practical Training Dual-use Vessel ...mentioning

confidence: 99%

Power Positioning System Control Study of “Intelligent Research and Internship Vessel” Based on Terminal Sliding Mode

Wei,

He,

et al. 2023

Preprint

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As most of the current dynamic positioning systems are based on model ships, they cannot accu-rately reflect the motion state, position changes, and mutual influence of each part of the dynamic positioning system of actual ships in complex environments. Other actual ships such as cargo ships cannot add various sensors and auxiliary equipment to verify and analyze the positioning system. This article takes the intelligent research and training dual-use ship of Dalian Maritime University, which integrates scientific research and training, as the object of study. This ship will not be affected by the voyage period and route and can choose a suitable sea area for research. Therefore, in order to improve the accuracy and reliability of the dynamic positioning system, research on the ship’s dynamic positioning system was carried out. Firstly, an accurate mathematical model of ship motion was established, and the hydrodynamic derivatives of ship model motion were obtained by nu-merical calculation, and applied to the three-degree-of-freedom model of the intelligent research and training dual-use ship. Then, the model was used as part of the closed-loop simulation model of the ship’s dynamic positioning system, and the terminal sliding mode controller was used for sim-ulation and emulation, thereby obtaining ideal simulation test results. This research helps to im-prove the accuracy and reliability of the dynamic positioning system and provides new ideas and methods for ship motion control.

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Double-mode robust model predictive control of ship dynamic positioning system based on event-triggered mechanism

Cited by 6 publications

References 28 publications

Dynamic Positioning Control for Marine Crafts: A Survey and Recent Advances

Dynamic Positioning Control for Marine Crafts: A Survey and Recent Advances

Power Positioning System Control Study of “Intelligent Research and Internship Vessel” Based on Terminal Sliding Mode

Power Positioning System Control Study of “Intelligent Research and Internship Vessel” Based on Terminal Sliding Mode

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