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Development and Validation of Methodologies for Structural Monitoring of Floating Wind Turbines

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A3: Wind, Wave and Tidal Energy".

Deadline for manuscript submissions: 25 April 2024 | Viewed by 133

Special Issue Editors

Dr. Francisco Pimenta
E-Mail Website1 Website2 Website3
Guest Editor
Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
Interests: operational modal analysis; floating wind turbines; structural dynamics; structural health monitoring
Dr. Eleonora Tronci
E-Mail Website
Guest Editor
Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA
Interests: data-driven structural health monitoring; structural dynamics; virtual sensing; offshore wind turbines
Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
Interests: structural health monitoring; operational modal analysis; wind turbines; structural dynamics
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Special Issue Information

Dear Colleagues,

With an increase in environmental concerns, the search for sustainable energy scenarios has been gaining more and more attention from academic research projects and industries in recent years. In particular, with the advent of floating platform solutions, the exploration of wind energy in offshore scenarios—which until very recently was confined to lower depths where bottom-fixed solutions (e.g., gravity structures and monopiles) for the overall stability of the system are used—has been successfully extended to deeper waters, which offer optimal conditions due to higher mean wind speeds and lower turbulence winds.

Although placing a wind turbine on top of a floating platform entails additional challenges for the design and operation teams, the particular dynamic nature of these complex structures also allows for the definition of new monitoring strategies that are still mostly unexplored, but which may play a very important role for the better, more efficient management and exploration of floating offshore wind farms.

This Special Issue aims not only to explore the extension and validation of conventional structural monitoring techniques to the offshore field, but also to develop new methodologies which are specially designed for these structures, with a particular focus on approaches for enhanced structural health monitoring, operational modal analysis and fatigue damage evaluation.

Dr. Francisco Pimenta
Dr. Eleonora Tronci
Dr. Sérgio Pereira
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. Energies is an international peer-reviewed open access semimonthly 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

  • floating wind turbines
  • operational modal analysis
  • structural dynamics
  • structural health monitoring
  • fatigue evaluation

Published Papers

This special issue is now open for submission, see below for planned papers.

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: On the effect of non linear damping sources in output-only identification methods applied to floating wind turbines
Authors: Francisco Pimenta; Vitor Liotto Pedrelli; Thea Vanelli; Filipe Magalhães
Affiliation: Faculty of Engineering of the University of Porto
Abstract: Output-only methods for modal identification are only strictly valid if a set of requirements are fulfilled regarding both structural and environmental conditions A particularly challenging effect in wind turbine dynamics is the significant presence of non-linear damping sources coming from the aerodynamic forces and, in offshore applications, the hydrodynamic forces on the sub-structure. In this work, the impact of these terms is firstly discussed in analytical grounds and then the corresponding effect on the performance of the covariance driven stochastic subspace identification is evaluated on a single degree of freedom model. The analysis is then extended to full hydro-aero-elastic simulation of a 5MW floating wind turbine using OpenFAST, mimicking the structural response in free decay tests and in parked conditions with turbulent wind fields. The results show that output-only identification methods are applicable in these challenging scenarios, but the results obtained must be carefully interpreted, since their dependence on the environmental conditions and motion amplitude imply that they are not directly translated into the structure properties, although still closely related to them.

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