A fuzzy rule-based PID controller for dynamic positioning of vessels in variable environmental disturbances
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Marine Science and Technology"
DOI: 10.1007/s00773-019-00689-2
Abstract: Conventional dynamic positioning systems are based on PID controllers and an extended Kalman filter or a nonlinear state observer. However, it is nontrivial to tune the control parameters, and the station-keeping performance varies with environmental… read more here.
Keywords: based pid; rule based; dynamic positioning; controller ... See more keywords
SOS Based Robust Control for Dynamic Positioning System Subject to Actuator Saturation
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Control, Automation and Systems"
DOI: 10.1007/s12555-017-0769-8
Abstract: In this paper, the problem of thruster saturation is considered for dynamic positioning systems of offshore platforms, specifically, a state feedback controller is developed for polynomial systems subject to actuator saturation. The sufficient conditions of… read more here.
Keywords: system; subject actuator; control; dynamic positioning ... See more keywords
Adaptive Unscented Kalman Filter Based Estimation and Filtering for Dynamic Positioning with Model Uncertainties
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Control, Automation and Systems"
DOI: 10.1007/s12555-018-9503-4
Abstract: A novel adaptive unscented Kalman filter (AUKF) is presented and applied to ship dynamic positioning (DP) system with model uncertainties of time-varying noise statistics, model mismatch and slow varying drift forces. The adaptive algorithm is… read more here.
Keywords: adaptive unscented; dynamic positioning; covariance; kalman filter ... See more keywords
Dynamic Positioning Capability Analysis for Marine Vessels Based on A DPCap Polar Plot Program
Sign Up to like & getrecommendations! Published in 2018 at "China Ocean Engineering"
DOI: 10.1007/s13344-018-0010-4
Abstract: Dynamic positioning capability (DPCap) analysis is essential in the selection of thrusters, in their configuration, and during preliminary investigation of the positioning ability of a newly designed vessel dynamic positioning system. DPCap analysis can help… read more here.
Keywords: analysis marine; analysis; dpcap analysis; program ... See more keywords
Comparison of control design models and observers for dynamic positioning of surface vessels
Sign Up to like & getrecommendations! Published in 2019 at "Control Engineering Practice"
DOI: 10.1016/j.conengprac.2019.01.015
Abstract: Abstract This paper investigates some fundamental aspects of control system design for dynamic positioning of marine surface vessels. Different control design models are compared. The impact of applying linear and nonlinear models to describe the… read more here.
Keywords: surface vessels; control; design models; control design ... See more keywords
Observer-based Robust Control for Dynamic Positioning of Large-Scale Heavy Lift Vessels
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DOI: 10.1016/j.ifacol.2019.06.024
Abstract: Abstract With the growing demand of large-scale heavy lift vessels in the deep-sea offshore construction works, high performance of Dynamic positioning (DP) systems is becoming ever crucial. However, current DP systems on board of heavy… read more here.
Keywords: scale heavy; dynamic positioning; large scale; heavy lift ... See more keywords
Tube-based Model Predictive Control for Dynamic Positioning of Marine Vessels
Sign Up to like & getrecommendations! Published in 2019 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2019.12.279
Abstract: Abstract This paper focuses on the design of a robust model predictive control law for dynamic positioning (DP) of marine vessels in the presence of actuator saturation and environmental disturbances. The proposed solution is a… read more here.
Keywords: model predictive; marine vessels; dynamic positioning; predictive control ... See more keywords
Reduction of state vector size in dynamic positioning simulation of supply vessel using a nonlinear extension of Kalman Filter
Sign Up to like & getrecommendations! Published in 2019 at "Ocean Engineering"
DOI: 10.1016/j.oceaneng.2019.02.038
Abstract: Abstract Having a reliable and fast estimation of states regardless of prior knowledge about environmental conditions is a major goal to be achieved in application of Dynamic Positioning (DP). One way to have a faster… read more here.
Keywords: elements model; kalman filter; dynamic positioning; state ... See more keywords
Design and Implementation of Pseudo-Inverse Thrust Allocation Algorithm for Ship Dynamic Positioning
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DOI: 10.1109/access.2019.2923718
Abstract: The pseudo-inverse method cannot optimize the angle and needs to give the azimuth angle artificially, therefore, when the dynamic positioning system has variable vector propellers and rudders, the pseudo-inverse method cannot be applied to the… read more here.
Keywords: thrust allocation; pseudo inverse; design implementation; dynamic positioning ... See more keywords
Robust Output-Feedback Control in a Dynamic Positioning System via High Order Sliding Modes: Theoretical Framework and Experimental Evaluation
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DOI: 10.1109/access.2020.2994515
Abstract: Despite being an established and mature technology, Vessel Dynamic Positioning Systems are always in focus for the development of novel control applications in order to increase their operational capacities. Rapid and robust transient response without… read more here.
Keywords: order sliding; control; dynamic positioning; sliding modes ... See more keywords
Stability Analysis and T-S Fuzzy Dynamic Positioning Controller Design for Autonomous Surface Vehicles Based on Sampled-Data Control
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DOI: 10.1109/access.2020.3015589
Abstract: This article investigates the stability analysis and the fuzzy dynamic positioning (DP) controller design for an autonomous surface vehicle (ASV) based on sampled-data. Firstly, the Takagi-Sugeno (T-S) fuzzy model for the ASV with dynamic positioning… read more here.
Keywords: stability analysis; sampled data; dynamic positioning; controller ... See more keywords