Composite finite-time adaptive anti-disturbance control for dynamic positioning of vessels with output constraints

Shi, Quan; Li, Xin; Dong, Qing; Yang, Jie; Guo, Xiaoxian

doi:10.1016/j.oceaneng.2022.111414

Cited by 13 publications

(7 citation statements)

References 34 publications

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“…Therefore, how to suppress these types of disturbances in ships is a long-standing research topic. Existing methods such as H ∞ control [11,12], neural networks [13,14], fuzzy logic systems [15], disturbance observer [16,17], extended state observer [18] and the Kalman filter [19,20]. It is evident that DP anti-disturbance control under multiple disturbances remains a core focus in current research.…”

Section: Impact Of Multiple Source Disturbancementioning

confidence: 99%

“…2) to save and utilize historical data ȳ(t − s) and r(t − s) such that some accidental triggering events can be avoided. If ε1 = 1 and ε(t) = ε 3 , ETM (9) degrades to the traditional condition of normal ETM in [17] and [19]. If ε1 = 0 and ε(t) = ε 3 , ETM (9) degrades to the memory ETM in [28].…”

Section: Ry-based Etmmentioning

confidence: 99%

“…Remark 2: Compared with the fixed triggering threshold in [13], [17], and [19], a dynamic triggering threshold with exponential variation is designed in this work, which is adjusted by the scalar function in (11) based on the linear convex combination of ζ i (t) and φ i (t). Meanwhile, more ETM parameters are introduced to expand the adjustable range of system performance.…”

Section: Ry-based Etmmentioning

confidence: 99%

“…Therefore, DP control based on DO has made rapid progress [16,77,78,80,81]. Experts and scholars have improved DP control based on finite-time DO [15,17,82] and fixed-time DO [83,84] compared to the general form of DO.…”

mentioning

confidence: 99%

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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: Impact Of Multiple Source Disturbancementioning

confidence: 99%

Section: Ry-based Etmmentioning

confidence: 99%

Section: Ry-based Etmmentioning

confidence: 99%

mentioning

confidence: 99%

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

Gao,

2024

JMSE

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“…The abundant marine resources worldwide have prompted global exploitation and exploration, necessitating the high reliability of marine equipment [1]. However, practical experiments conducted on marine vessels are time consuming and costly.…”

Section: Introductionmentioning

confidence: 99%

Tracking control based on proportional resonant controller for electro‐hydraulic systems with input delay

Ye,

Liu,

et al. 2023

IET Control Theory & Appl

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The growth of marine resources exploitation has led to increased research interest in electro‐hydraulic systems for marine simulation. This study proposes a proportional plus resonant (PR) controller to achieve high tracking performance for electro‐hydraulic systems. Due to the complex structure and non‐linear flow dynamics, establishing accurate mathematical models of electro‐hydraulic systems is challenging. The local linearization technique is applied to simplify the process of model establishment. The system gain is limited by the stability margin due to the input delay, resulting in a phase delay between the real trajectory and the desired reference. To compensate for the phase delay in tracking periodic reference with the traditional proportional and integral controller, a resonant item is added into the controller. The stability analysis of the closed‐loop system is performed using Routh‐Hurwitz criterion. Furthermore, the controller parameters are tuned based on the frequency characteristic to achieve high tracking performance and maintain the adequate stability margin. The effectiveness of the proposed PR controller in tracking periodic references is validated through numerical simulations and practical experiments.

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