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Special Issue "Wind Turbines and Wind Farms Performance Analysis through Numerical and Experimental Methods"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B2: Wind, Wave and Tidal Energy".

Deadline for manuscript submissions: 10 December 2022 | Viewed by 465

Special Issue Editor

Dr. Davide Astolfi
E-Mail Website
Guest Editor
Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy
Interests: wind turbines; condition monitoring; fault diagnosis; non-stationary machinery; control and monitoring; vibrations; applied statistics; numerical modelling; mechanical systems dynamics
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Special Issue Information

Dear Colleagues,

Greater exploitation of renewable energy is, at present, at the centre of the global policy agenda. In this context, wind turbines represent an extremely promising technology. On the one hand, new installations with large rotors are growing at a remarkable rate, necessitating precise evaluation of their actual capacity. On the other hand, a vast fraction of the wind turbines operating in Europe are presently reaching the end of their expected lifetime, and thus, judicious decisions will need to be taken regarding their repowering, decommissioning and so on.

While wind turbine and wind farm performance research is increasingly relevant, this objective poses several scientific and technological challenges. Wind turbines are complex machines subjected to nonstationary operation conditions, and in real-world plants it is impractical to monitor all the environmental conditions on which the extracted power depends.

Considering this premise, this Special Issue will present high-quality contributions covering all aspects of wind farms and wind turbine performance. While contributions on the following topics are particularly welcome, the list should not be considered exclusive:

  • Wind turbine power curves;
  • SCADA data analysis;
  • Diagnosis of wind turbine under-performance and faults;
  • Wind turbine and wind farm wakes and turbulence;
  • Wind farm blockage;
  • Jets and wind turbine performance;
  • Wind power forecast;
  • Wind turbine life cycle assessment;
  • Wind turbine ageing and end-of-life issues;
  • Wind turbine technology;
  • Wind tunnel testing;
  • LiDAR and anemometry;
  • Wind farm control and wake steering;
  • Yaw and pitch control;
  • Wind turbines in complex terrain;
  • Computational fluid dynamics
  • Large wind turbines;
  • Offshore wind farms;
  • Floating wind turbines;
  • Microwind turbines.

Dr. Davide Astolfi
Guest Editor

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 2200 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.

Published Papers (1 paper)

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Research

Article
Experimental Investigation of the Cooperation of Wind Turbines
Energies 2022, 15(11), 3906; https://doi.org/10.3390/en15113906 - 25 May 2022
Viewed by 358
Abstract
The article discusses the wind tunnel experimental investigation of two turbines (the downstream unit placed fully in the wake of the upstream one) at various turbulence intensity levels and wind turbine separation distances, at a Reynolds number of approximately 105. The [...] Read more.
The article discusses the wind tunnel experimental investigation of two turbines (the downstream unit placed fully in the wake of the upstream one) at various turbulence intensity levels and wind turbine separation distances, at a Reynolds number of approximately 105. The velocity deficit due to the upstream turbine operation is reduced as the wake mixes with the undisturbed flow, which may be enhanced by increasing the turbulence intensity. In a natural environment, this may be provoked by natural wind gusts or changes in the wind inflow conditions. Increased levels of turbulence intensity enlarge the plateau of optimum wind turbine operation—this results in the turbine performance being less prone to variations of tip speed ratio. Another important set of results quantifies the influence of the upstream turbine operation at non-optimal tip speed ratio on the overall system performance, as the downstream machine gains more energy from the wake flow. Thus, all power output maximisation analyses of wind turbine layout in a cluster should encompass not only the locations and distances between the units, but also their operating parameters (TSR, but also pitch or yaw control of the upstream turbine(s)). Full article
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