Optimization and Energy Maximizing Control Systems for Wave Energy Converters—3rd 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: 25 March 2025 | Viewed by 874

Special Issue Editors


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Guest Editor
Marine Offshore Renewable Energy Laboratory (MOREnergy Laboratory), Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
Interests: marine energy; nonlinear hydrodynamics; wave-body interaction; energy-maximizing control systems; mooring systems; computational fluid dynamics; nonlinear dynamics; numerical modeling; optimization algorithms; numerical computing
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Marine Offshore Renewable Energy Laboratory (MOREnergy Laboratory), Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Turin, Italy
Interests: marine energy; energy-maximizing control; hydraulic and mechanical PTO; nonlinear 6-DOF dynamics; optimal design; numerical modeling; experimental modeling; sustainable mobility; electric boat
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, the drive to industrialize wave energy conversion systems has intensified, particularly as global and regional policies, such as those in the European Union, emphasize the importance of renewable energy integration. Building on the progress of previous editions, this third-edition Special Issue continues to focus on maximizing the efficiency, durability, and economic viability of wave energy converters (WECs). This edition delves deeper into advanced control strategies that address both traditional and emerging challenges in WEC design and operation.

Key topics include the development of enhanced energy-maximizing control systems that consider multi-objective optimization problems, integrating both performance maximization and structural durability. With a particular focus on handling strong nonlinearities, nonidealities in power take-off, and extreme sea conditions, this Special Issue also explores the latest advancements in estimation, forecasting, and data-driven predictive control. The design of WEC arrays and coordinated control strategies are discussed as critical to scaling wave energy solutions to commercial viability. Novel solutions and concepts for energy harvesting are also welcome, both on the mechanical energy collector and power take-off systems, with the objective to provide higher control flexibility and conversion bandwidth. Finally, hybrid offshore systems are within the scope, if the integration aims at providing more flexibility and controllability for the WEC system.

We invite papers on novel optimization algorithms, experimental validation of control architectures, and innovative solutions to WEC challenges. This Special Issue aims to push forward the state of the art in wave energy research and contribute to its future as a viable component of the global renewable energy mix.

Dr. Giuseppe Giorgi
Dr. Mauro Bonfanti
Guest Editors

Manuscript Submission Information

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Keywords

  • wave energy converter
  • optimal design
  • energy-maximizing control
  • power conversion systems
  • estimation
  • forecasting
  • nonlinear modeling

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Published Papers (1 paper)

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Research

27 pages, 10660 KiB  
Article
Numerical Simulation of Hydrodynamic Performance of an Offshore Oscillating Water Column Wave Energy Converter Device
by Peng Tang, Xinyi Lin, Wei Wang and Hongsheng Zhang
J. Mar. Sci. Eng. 2024, 12(12), 2289; https://doi.org/10.3390/jmse12122289 - 12 Dec 2024
Viewed by 621
Abstract
Wave energy, as a renewable energy source, plays a significant role in sustainable energy development. This study focuses on a dual-chamber offshore oscillating water column (OWC) wave energy device and performs numerical simulations to analyze the influence of chamber geometry on hydrodynamic characteristics [...] Read more.
Wave energy, as a renewable energy source, plays a significant role in sustainable energy development. This study focuses on a dual-chamber offshore oscillating water column (OWC) wave energy device and performs numerical simulations to analyze the influence of chamber geometry on hydrodynamic characteristics and wave energy conversion efficiency. Unlike existing studies primarily focused on single-chamber configurations, the hydrodynamic characteristics of dual-chamber OWCs are relatively underexplored, especially regarding the impact of critical design parameters on performance. In this study, STAR-CCM+ V2302 software (Version 2410, Siemens Digital Industrial Software, Plano, TX, USA) is utilized to systematically evaluate the effects of key design parameters (including turbine configuration, mid-wall draught depth, and wall angles) on the hydrodynamic performance, wave energy capture efficiency, and wave reflection and loading characteristics of the device. The findings aim to provide a reference framework for the optimal design of dual-chamber OWC systems. The results show that the dual-chamber, dual-turbine (2C2T) configuration offers a 31.32% improvement in efficiency compared to the single-chamber, single-turbine (1C1T) configuration at low wave frequencies. In terms of reducing wave reflection and transmission, the 2C2T configuration outperforms the dual-chamber, single-turbine configuration. When the wall angle increases from 0° to 40°, the total efficiency increases by 166.37%, and the horizontal load decreases by 20.05%. Additionally, optimizing the mid-wall draught depth results in a 9.6% improvement in efficiency and a reduction of vertical load by 11.69%. Full article
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