Worldwide Research Trends on Optimizing Wind Turbine Efficiency

Alcayde, Alfredo; Hernández-Escobedo, Quetzalcoatl; Muñoz-Rodríguez, David; Perea-Moreno, Alberto-Jesús

doi:10.3390/en15186559

Cited by 1 publication

(3 citation statements)

References 21 publications

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“…Maximum equivalent stresses, calculated using the von-Mises criteria, were found to be equal to 186.6 MPa in Figs. 3. It is important to note that since these values were less than the material's yield value (207 MPa), the wind turbine hub could operate in perfect safety even under extreme stress circumstances, without enduring any substantial changes impacting its operation and performance.…”

Section: Ii1 Structural Verificationsmentioning

confidence: 99%

“…Indeed, it is essential that the supply of this electricity is safe, reliable, sustainable, and environmentally friendly, reducing CO2 emissions into the atmosphere and the use of fossil fuels. Renewable energies, and wind energy, offer a significant contribution to this end [3]. Wind energy research dates to the last century, but the efforts to improve the performance of wind turbines are still considerable worldwide.…”

Section: Introductionmentioning

confidence: 99%

“…Department National Institute of Nuclear Physics, National Laboratories of the South, Via S. Sofia 62 -95123 Catania (Italy) 3. Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Via Marengo 2, 09123 Cagliari, Italy.…”

mentioning

confidence: 99%

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Efficiency Optimization in Medium Power Wind Turbines: an Innovative Mechanical Pitch Control System

Calı̀

Cacopardo²,

Baiamonte

et al. 2022

IREMOS

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The paper illustrates the design of a new mechanical system for propeller blades pitch calibration in medium power wind turbines. The peculiarity of this system is its capacity of adjusting through a feedback control system, which allows the wind turbine to capture the maximum amount of energy from the wind. In this work an axial drive system was studied by means of racks capable of linearly adjusting the pitch of all wind turbine propeller blades in an intrinsically synchronous way, with an advantage over the traditional methods of propeller blades pitch calibration. For different wind speeds the system adjusts the blades angle of incidence in order to reduce the rotation speed and keep the system as close as possible to the pre-established design conditions generating maximum energy with a high efficiency. The manuscript examines the main analyses and simulations conducted during the design phase. These show that the proposed method allows to reach higher efficiencies with a greater intrinsic stability compared to the traditional pitch control mechanisms in medium power wind turbines. The experimental results on the first prototypes confirm the efficiency increase.

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Section: Ii1 Structural Verificationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%