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Experimental Study on the Effect of the Blade Tip Distance on the Power and the Wake Recovery with Small Multi-Rotor Wind Turbines [PDF]

open access: goldJournal of Marine Science and Engineering, 2023
In order to investigate the output power and wake velocity of small multi-rotor wind turbines compared to single-rotor wind turbines, which operate in the same swept area at various blade tip distances, this paper used the wind tunnel test method to ...
Sen Gong, Kai Pan, Hua Yang, Junwei Yang
doaj   +2 more sources

Wind turbines

open access: yes, 2013
The European Project Semester is about much more than a period of study, it is an opportunity to explore new surroundings and embrace new cultures, all while studying in a unique environment with a blend of people from diff erent disciplines. Our project, put together with the help of our supervisor Gunther Steenackers fi nds three product developers ...
Jorge Luján, Clàudia   +3 more
  +12 more sources

Larger wind turbines as a solution to reduce environmental impacts [PDF]

open access: yesScientific Reports
The EU aims for carbon neutrality by 2050, focusing on offshore wind energy. Investments in North Sea wind farms, with optimal wind resources, play a crucial role.
Naveed Akhtar   +2 more
doaj   +2 more sources

Fault Diagnosis and Reconstruction of Wind Turbine Anemometer Based on RWSSA-AANN

open access: yesEnergies, 2021
When the state of the wind turbine sensors, especially the anemometer, appears abnormal it will cause unnecessary wind loss and affect the correctness of other parameters of the whole system.
Ling Zhou   +3 more
doaj   +1 more source

Ultra-Short-Term Wind Power Combined Prediction Based on Complementary Ensemble Empirical Mode Decomposition, Whale Optimisation Algorithm, and Elman Network

open access: yesEnergies, 2022
Accurate wind power forecasting helps relieve the regulation pressure of a power system, which is of great significance to the power system’s operation.
Anfeng Zhu   +3 more
doaj   +1 more source

Numerical Investigation of the Influence of the Wake of Wind Turbines with Different Scales Based on OpenFOAM

open access: yesApplied Sciences, 2022
The wake of a wind turbine has an important influence on the output power of wind farms. Staggered height layout is an emerging method for the layout optimization of wind farms.
Wenxin Tian   +7 more
doaj   +1 more source

Comparative Performance of DFIG and PMSG Wind Turbines during Transient State in Weak and Strong Grid Conditions Considering Series Dynamic Braking Resistor

open access: yesEnergies, 2022
The recently stipulated grid codes require wind generators to re-initiate normal power production after grid voltage sag. This paper presents a comparative performance of two commonly employed variable speed wind turbines in today’s electricity market ...
Kenneth E. Okedu, S. M. Muyeen
doaj   +1 more source

Wind turbine noise [PDF]

open access: yesBMJ, 2012
Seems to affect health adversely and an independent review of evidence is needed The evidence for adequate sleep as a prerequisite for human health, particularly child health, is overwhelming. Governments have recently paid much attention to the effects of environmental noise on sleep duration and quality, and to how to reduce such noise.1 However ...
Hanning, C.D., Evans, Alun
openaire   +4 more sources

Augmentation of DFIG and PMSG Wind Turbines Transient Performance Using Different Fault Current Limiters

open access: yesEnergies, 2022
The technology of variable speed wind turbines is very promising in renewable power generation. It is imperative for wind turbines to gain control after grid disturbances and contribute to the stability of power grids as part of the requirements of grid ...
Kenneth E. Okedu
doaj   +1 more source

Insect fatalities at wind turbines as biodiversity sinks

open access: yesConservation Science and Practice, 2021
Evidence is accumulating that insects are frequently killed by operating wind turbines, yet it is poorly understood if these fatalities cause population declines and changes in assemblage structures on various spatial scales. Current observations suggest
Christian C. Voigt
doaj   +1 more source

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