Experimental investigations of an energy-efficient dynamic positioning controller for different sea conditions

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DOI	Trouver le DOI : https://doi.org/10.1016/j.oceaneng.2024.117297
Auteur	Rechercher : Alagili, Osama; Rechercher : Fernando, Eranga Identifiant ORCID : https://orcid.org/0000-0003-2787-881X; Rechercher : Ahmed, Salim; Rechercher : Imtiaz, Syed Identifiant ORCID : https://orcid.org/0000-0002-2715-9084; Rechercher : Murrant, Kevin¹; Rechercher : Gash, Bob¹; Rechercher : Islam, Mohammed¹Identifiant ORCID : https://orcid.org/0000-0002-2129-5333; Rechercher : Zaman, Hasanat¹
Affiliation	Conseil national de recherches Canada. Génie océanique, côtier et fluvial
Bailleur de fonds	Rechercher : National Research Council Canada
Format	Texte, Article
Sujet	dynamic positioning; control algorithms; nonlinear model predictive controller
Résumé	The primary objective of a Dynamic Positioning (DP) controller is to maintain vessel position under varying environmental disturbances, while minimizing thruster usage. This work presents the development of an innovative energy-efficient DP controller, named Green NMPC (GNMPC), which minimizes thruster demand while upholding position constraints. Inspired from the structure of the economic nonlinear model predictive controller (ENMPC), GNMPC aligns with ”green” objectives and performance metrics, notably thruster energy efficiency. Extensive DP tests were conducted across a spectrum of wave conditions, including head seas, oblique angles, and large position set-point changes, to validate the efficacy of the GNMPC approach and evaluate the dynamic positioning system’s effectiveness in diverse challenging situations. The results demonstrated that the proposed controller is energy efficient compared to a benchmark NMPC and proportional–integral–derivative (PID) controller. It successfully reduced thruster demand in the sway direction compared to NMPC while preserving the vessel’s positioning objectives.
Date de publication	2024-03-11
Maison d’édition	Elsevier
Licence	Creative Commons, Attribution - Pas d’Utilisation Commerciale – Pas de Modification 4.0 International (CC BY-NC-ND 4.0) https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
Dans	Ocean Engineering 299, nº C, 117297 (1 mai 2024) : 1–14.
Langue	anglais
Publications évaluées par des pairs	Oui
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	c8d0de9d-607b-48c5-8668-4c911bd26c09
Enregistrement créé	2025-04-16
Enregistrement modifié	2025-11-03

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Date de modification :: 2026-06-14