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Optimal Control of Wind and Wave Energy Converters: 2nd Edition
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Optimal Control of Wind and Wave Energy Converters: 2nd Edition

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: 22 September 2026 | Viewed by 864

Special Issue Editors

Dr. Cristian Paul Chioncel

E-Mail Website
Guest Editor
Department of Engineering Science, Babeș-Bolyai University, 400347 Cluj Napoca, Romania
Interests: renewable energy; energy policy; energy conversion
Special Issues, Collections and Topics in MDPI journals
Dr. Gelu Ovidiu Tirian

E-Mail Website
Guest Editor
Engineering Faculty of Hunedoara, Politehnica University Timisoara, 300006 Timișoara, Romania
Interests: automation; process control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nowadays, it is difficult to imagine a society where, in the energy mix, the electricity produced from renewable sources will not experience a significant increase. In this area, the capture and transformation of air (wind) and sea (wave) current energy is the most efficient method, as it reduces the footprint on the ground, has minimal negative effects in the construction phase, and has an overall positive environmental impact.

Regarding wind exploitation, this trend can be traced for onshore as well as offshore wind energy production.

Independent of energy source, wind, or wave, the first step is to identify a location with the right potential, which is then followed by different site assessments, technical planning, bureaucratic approval, and the authorization process. Offshore areas have become some of the leading renewable energy areas, driving change in energy production.

Once the wind and wave turbines operate, it is a big challenge to ensure the operation of the turbines according to the wind power or wave characteristics. Therefore, ensuring operation at the maximum power point (MPP) represents a continuing challenge.

The location with the best wind or wave source is unusable for exploiting this potential if the network grid capacity is not given. A continuous challenge is maintaining constant grid improvement and intelligent network control that can facilitate better power distribution in the network.

The Guest Editors of this Special Issue, “Optimal Control of Wind and Wave Energy Converters: 2nd Edition”, invite you to present and disseminate the most recent advances related to the theory, design, modelling, application, control, and condition monitoring of all types of wind or wave turbines to increase their efficiency.

Dr. Cristian Paul Chioncel
Dr. Gelu Ovidiu Tirian
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 250 words) can be sent to the Editorial Office for assessment.

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

  • electric generators
  • wave energy converters
  • transmission and distribution grid
  • smart grid
  • wind measurement techniques
  • onshore and offshore wind turbines

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Related Special Issue

Published Papers (2 papers)

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Research

20 pages, 480 KB  
Article
Pitch Angle Control Strategies for Power Regulation in Horizontal-Axis Wind Turbines
by Cristian-Paul Chioncel and Elisabeta Spunei
Energies 2026, 19(10), 2397; https://doi.org/10.3390/en19102397 - 16 May 2026
Viewed by 91
Abstract
Wind turbines operating under highly variable wind conditions require effective pitch-angle control to ensure maximum energy capture and structural protection. This study examines the performance of a 2.5 MW GEWE-B2.5-100 horizontal-axis wind turbine by quantifying how pitch-angle regulation affects power limitation, rotor-speed stability, [...] Read more.
Wind turbines operating under highly variable wind conditions require effective pitch-angle control to ensure maximum energy capture and structural protection. This study examines the performance of a 2.5 MW GEWE-B2.5-100 horizontal-axis wind turbine by quantifying how pitch-angle regulation affects power limitation, rotor-speed stability, and mechanical loading. Using an aerodynamic model, the maximum power point (MPP) was identified at an optimal mechanical angular speed of ωOPTIM = 240.45 rad/s for V = 10 m/s, and the corresponding pitch-angle adjustments were determined for wind speeds up to 26 m/s, where β increases from 9.28° to 29.06° to maintain safe operation. Three dynamic case studies were conducted. Under sinusoidal wind variations between 10 and 14 m/s, PI-based pitch control limited rotor-speed oscillations to below 0.1%, ensuring stable operation. For exponential wind increases to 24 m/s and 34 m/s, the pitch angle rose to 28.48°, with rotor-speed overshoot remaining minimal at 0.004% and 0.006%, respectively. As stated in the manuscript, “dynamic pitch angle control significantly reduces rotor speed oscillations and mitigates excessive which indirectly contributes to alleviating potential structural stresses”. These results show that pitch-angle control is a key factor in turbine performance, enabling precise power capping at 2.178 MW and ensuring structural safety under extreme wind conditions. The proposed strategy supports reliable integration of large wind turbines into modern power systems. Full article
(This article belongs to the Special Issue Optimal Control of Wind and Wave Energy Converters: 2nd Edition)
17 pages, 1460 KB  
Article
Method of Evaluation of Potential Location of EV Charging Stations Based on Long-Term Wind Power Density in Poland
by Olga Orynycz, Magdalena Zimakowska-Laskowska, Paweł Ruchała, Piotr Laskowski, Jonas Matijošius, Stefka Fidanova, Olympia Roeva, Edgar Sokolovskij and Maciej Menes
Energies 2026, 19(2), 434; https://doi.org/10.3390/en19020434 - 15 Jan 2026
Cited by 1 | Viewed by 453
Abstract
The rapid development of electromobility increases the need for fast, accessible and robust charging stations devoted to EVs (electric vehicles). Planning a network of such stations poses new challenges—amongst others, a power supply that may power such chargers. One major concept is to [...] Read more.
The rapid development of electromobility increases the need for fast, accessible and robust charging stations devoted to EVs (electric vehicles). Planning a network of such stations poses new challenges—amongst others, a power supply that may power such chargers. One major concept is to utilise wind energy as a power source. The paper analyses meteorological data gathered since 2001 in several stations across Poland to achieve quantitative indexes, which summarise (a) wind power density (WPD) as a metric of energy amount, (b) long-term (multiannual) time trends of amount of energy, (c) short-term stability (and thus predictability) of the wind power. The indexes that cover the abovementioned factors allow the authors to answer the research questions, where the local wind conditions allow the authors to consider the integration of a wind powerplant and a network of EV chargers. Additionally, we investigated locations where the amount of available energy is sufficient, but the variability of wind power impedes its practical exploitation. In such cases, the power system may be extended by an energy storage system that acts as a buffer, smoothing power fluctuations and thereby improving the robustness and reliability of downstream charging systems. Full article
(This article belongs to the Special Issue Optimal Control of Wind and Wave Energy Converters: 2nd Edition)
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