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Advances in Offshore Wind and Wave Energies—2nd Edition
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Advances in Offshore Wind and Wave Energies—2nd Edition

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Ocean Engineering".

Deadline for manuscript submissions: 30 August 2024 | Viewed by 2929

Special Issue Editors

Dr. Pedro Beirão

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Guest Editor
1. Polytechnic of Coimbra, Coimbra Institute of Engineering, Department of Mechanical Engineering, Rua Pedro Nunes—Quinta da Nora, 3030-199 Coimbra, Portugal
2. IDMEC—Mechanical Engineering Institute, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
Interests: wave energy; modeling; control; PLC programming; equipment development
Special Issues, Collections and Topics in MDPI journals
Dr. Mário J. G. C. Mendes

E-Mail Website
Guest Editor
1. Polytechnic Institute of Lisbon, Instituto Superior de Engenharia de Lisboa (ISEL), Mechanical Engineering Department, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisbon, Portugal
2. CENTEC—Centre for Marine Technology and Ocean Engineering, University of Lisbon, Instituto Superior Técnico (IST), Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
Interests: renewable energy; wave energy converters; fault-tolerant control systems; multi-agent systems; soft robotics; digital factories
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Journal of Marine Science and Engineering is pleased to announce a Special Issue entitled "Advances in Offshore Wind and Wave Energies—2nd Edition" based on the great success of our previous Special Issue with the same title. The aim of this Special Issue is to collate and publish original research articles covering the latest developments in the field of offshore wind and wave energy. Some potential topics might include, but are not limited to, technological aspects, such as new devices and their designs, modeling, control algorithms and simulation approaches, power optimization, energy harnessing, storage, management and grid connection. The Guest Editors of this Special Issue, together with the Editors of the Journal of Marine Science and Engineering will provide a high-quality reviewing process and ensure efficient publication of original research and review articles.

Dr. Pedro Beirão
Dr. Mário J. G. C. Mendes
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • renewable energy
  • wind energy
  • wave energy
  • offshore wind devices
  • offshore wave energy converters
  • modeling
  • control
  • wind and wave energy management

Related Special Issue

Published Papers (3 papers)

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Research

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16 pages, 5004 KiB  
Article
A Jacket-Frame Mounted Oscillating Water Column with a Variable Aperture Skirt
by Carlos Pérez-Collazo, Deborah M. Greaves and Gregorio Iglesias
J. Mar. Sci. Eng. 2023, 11(12), 2383; https://doi.org/10.3390/jmse11122383 - 18 Dec 2023
Viewed by 1089
Abstract
During the last decade jacket-frames have emerged as the main kind of substructure for bottom-mounted offshore wind farms in intermediate water depths. With the offshore wind industry moving towards deeper waters, the predominance of jacket-frames is expected to increase in future years. Multipurpose [...] Read more.
During the last decade jacket-frames have emerged as the main kind of substructure for bottom-mounted offshore wind farms in intermediate water depths. With the offshore wind industry moving towards deeper waters, the predominance of jacket-frames is expected to increase in future years. Multipurpose platforms combining wind and wave energy are proposed as an innovative solution to enhance the sustainability of offshore wind energy. In this research, a multipurpose platform is investigated with a novel feature in its oscillating water column (OWC) wave energy converter—a variable geometry skirt. A comprehensive physical modelling campaign was carried out using a 1:50 scale model. The performance of the OWC and its interaction with the wave field were investigated under four different skirt aperture angles. It was found that the skirt aperture angle plays a significant role in the capture-width ratio and the pneumatic mean power of the OWC. The best performance was obtained with a skirt aperture angle of 140 deg. More generally, these results prove that the variable-geometry skirt is a promising innovation for hybrid wave-wind systems mounted on jacket-frame substructures. Full article
(This article belongs to the Special Issue Advances in Offshore Wind and Wave Energies—2nd Edition)
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23 pages, 8364 KiB  
Article
A Novel Composite Pitch Control Scheme for Floating Offshore Wind Turbines with Actuator Fault Consideration
by Shuang Liu, Yaozhen Han, Ronglin Ma, Mingdong Hou and Chao Kang
J. Mar. Sci. Eng. 2023, 11(12), 2272; https://doi.org/10.3390/jmse11122272 - 30 Nov 2023
Cited by 1 | Viewed by 813
Abstract
It is of great importance to simultaneously stabilize output power and suppress platform motion and fatigue loads in floating offshore wind turbine control systems. In this paper, a novel composite blade pitch control scheme considering actuator fault is proposed based on an augmented [...] Read more.
It is of great importance to simultaneously stabilize output power and suppress platform motion and fatigue loads in floating offshore wind turbine control systems. In this paper, a novel composite blade pitch control scheme considering actuator fault is proposed based on an augmented linear quadratic regulator (LQR), a fuzzy proportional integral (PI) and an adaptive second-order sliding-mode observer. Collective pitch control was achieved via the fuzzy PI, while individual pitch control was based on the augmented LQR. In the case of actuator fault, an adaptive second-order sliding-mode observer was constructed to effectively eliminate the need for the upper bound of unknown fault derivatives and suppress the chattering effect. This paper conducted co-simulations based on FAST (Fatigue, Aerodynamics, Structures, and Turbulence) and MATLAB/Simulink to verify the effectiveness and superiority of the proposed scheme under different environmental conditions. It is shown that platform roll was reduced by approximately 54% compared to that under PI control. For the tower fore–aft moment, load reductions of 45% or more were achievable. The proposed scheme can greatly reduce the pitch and roll of the floating platform and loads in the windward direction of the wind turbine. Full article
(This article belongs to the Special Issue Advances in Offshore Wind and Wave Energies—2nd Edition)
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Review

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34 pages, 11771 KiB  
Review
A Review and Design Principle of Fixed-Bottom Foundation Scour Protection Schemes for Offshore Wind Energy
by Dongyue Gao, Xinying Pan, Bingchen Liang, Bo Yang, Guoxiang Wu and Zhenlu Wang
J. Mar. Sci. Eng. 2024, 12(4), 660; https://doi.org/10.3390/jmse12040660 - 16 Apr 2024
Viewed by 461
Abstract
Foundation scour is the erosion of sediments around pile foundations by wave and current in offshore wind energy. This phenomenon destabilizes foundations and poses a threat to pile safety. Therefore, scour protection becomes a crucial challenge in offshore wind projects. This paper reviews [...] Read more.
Foundation scour is the erosion of sediments around pile foundations by wave and current in offshore wind energy. This phenomenon destabilizes foundations and poses a threat to pile safety. Therefore, scour protection becomes a crucial challenge in offshore wind projects. This paper reviews and synthesizes recent publications and patented technologies related to scour protection. Considering the primary engineering concerns, the paper proposes design principles for effective scour protection schemes to standardize evaluation criteria. These principles prioritize efficacy, independence, and cost-efficiency, enabling the analysis of scour protection scheme applicability. In addition, this paper summarizes and describes common protection schemes in the literature. The effectiveness of their protection is analyzed and summarized, and their economic and performance independence is evaluated. This paper categorizes flow-altering scour protection schemes found in the literature. Based on a comprehensive understanding of the mechanisms and engineering requirements of scour protection, the paper proposes a focus on determining the erosion reduction rate curve (Ep−U/Uc curve) as a key criterion for evaluating the effectiveness of protection schemes under varying flow velocities and the erosion reduction rate of scour protection schemes under extreme conditions. The study highlights the necessity of establishing a comprehensive design evaluation methodology, which is crucial for addressing the significant challenges related to scour encountered in offshore wind power projects. Full article
(This article belongs to the Special Issue Advances in Offshore Wind and Wave Energies—2nd Edition)
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