Topic
Dynamic positioning
About: Dynamic positioning is a research topic. Over the lifetime, 1550 publications have been published within this topic receiving 13822 citations.
Papers published on a yearly basis
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Papers
TL;DR: In this paper a nonlinear observer is derived and is proven to be passive and GES, and the number of tuning parameters is reduced to a minimum by using passivity theory, which results in a simple and intuitive tuning procedure.
557 citations
TL;DR: A survey of some of the major technology advances in the DP controller design having taken place during more than 30 years of research and development is given.
530 citations
TL;DR: It is proved that the designed DP robust nonlinear control law can maintain ship's position and heading at desired values, while guaranteeing the uniform ultimate boundedness of all signals in the DP closed-loop control system.
397 citations
TL;DR: This paper proposes a globally exponentially stable (GES) nonlinear control where a nonlinear observer is included in the design such that only position measurements are required.
Abstract: Dynamic positioning (DP) systems for ships are usually designed under the assumption that the kinematic equations be linearized about a constant yaw angle such that linear and gain scheduling techniques can be applied. This paper proposes a globally exponentially stable (GES) nonlinear control where this assumption is removed. A nonlinear observer is included in the design such that only position measurements are required. GES is proven by applying the backstepping design methodology and Lyapunov stability theory. The control law is simulated on two thruster-controlled ships.
392 citations
TL;DR: The stability and stabilization criteria are derived by taking into consideration an asynchronous difference between the normalized membership function of the T–S fuzzy DPS and that of the controller, which can stabilize states of the UMV.
Abstract: This paper is concerned with a Takagi–Sugeno (T–S) fuzzy dynamic positioning controller design for an unmanned marine vehicle (UMV) in network environments. Network-based T–S fuzzy dynamic positioning system (DPS) models for the UMV are first established. Then, stability and stabilization criteria are derived by taking into consideration an asynchronous difference between the normalized membership function of the T–S fuzzy DPS and that of the controller. The proposed stabilization criteria can stabilize states of the UMV. The dynamic positioning performance analysis verifies the effectiveness of the networked modeling and the controller design.
275 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 13 |
| 2024 | 28 |
| 2023 | 58 |
| 2022 | 89 |
| 2021 | 86 |
| 2020 | 92 |