Results 21 to 30 of about 255,138 (334)

Modelling the aerodynamics of vertical-axis wind turbines in unsteady wind conditions [PDF]

open access: yes, 2013
Most numerical and experimental studies of the performance of vertical-axis wind turbines have been conducted with the rotors in steady, and thus somewhat artificial, wind conditions - with the result that turbine aerodynamics, under varying wind ...
Brown   +8 more
core   +1 more source

Fish schooling as a basis for vertical axis wind turbine farm design [PDF]

open access: yes, 2000
Most wind farms consist of horizontal axis wind turbines (HAWTs) due to the high power coefficient (mechanical power output divided by the power of the free-stream air through the turbine cross-sectional area) of an isolated turbine.
Whittlesey, Robert W.   +2 more
core   +8 more sources

Optimization of constant power control of wind turbines to provide power reserves [PDF]

open access: yes, 2013
In several countries, the wind power penetration increased tremendously in the last years. As the current wind turbines do not participate in frequency control nor reserve provision, this may compromise the proper functioning of the primary control and ...
De Kooning, Jeroen   +4 more
core   +1 more source

Numerical simulation of nautilus equiangular spiral wind turbine and analysis of building turbulence

open access: yesJournal of Hebei University of Science and Technology, 2020
In order to improve the overall performance of wind turbines and solve the problem that the wind turbine is affected by the building in actual operation, the simulation analysis software Fluent was used to study the aerodynamic performance of the new ...
Zheng LI   +3 more
doaj   +1 more source

Performance prediction of wind turbines utilizing passive smart blades: approaches and evaluation [PDF]

open access: yes, 2009
The induced deformation, because of the presence of elastic coupling in the structure of passive smart blades, is the key parameter that affects the wind turbine aerodynamic performance, namely rotor mechanical power and blade loading.
Isikveren, Askin, Maheri, Alireza
core   +1 more source

Minimizing the Energy Cost of Offshore Wind Farms by Simultaneously Optimizing Wind Turbines and Their Layout

open access: yesApplied Sciences, 2019
The construction and gradual installation of turbines on wind farms has been hindered by the high cost of the energy production. An effective way to minimize energy costs is via the optimal design of wind turbines and their layout, but relevant and ...
Longfu Luo   +5 more
doaj   +1 more source

Correlations of power output fluctuations in an offshore wind farm using high-resolution SCADA data [PDF]

open access: yesWind Energy Science, 2021
Space–time correlations of power output fluctuations of wind turbine pairs provide information on the flow conditions within a wind farm and the interactions of wind turbines.
J. K. Seifert   +3 more
doaj   +1 more source

Wind turbine condition assessment through power curve copula modeling [PDF]

open access: yes, 2012
Power curves constructed from wind speed and active power output measurements provide an established method of analyzing wind turbine performance. In this paper it is proposed that operational data from wind turbines are used to estimate bivariate ...
Galloway, Stuart   +2 more
core   +1 more source

Theoretical and experimental power from large horizontal-axis wind turbines [PDF]

open access: yes, 1982
A method for calculating the output power from large horizontal-axis wind turbines is presented. Modifications to the airfoil characteristics and the momentum portion of classical blade element-momentum theory are given that improve correlation with ...
Janetzke, D. C., Viterna, L. A.
core   +2 more sources

Development of a Monitoring System for the State of the Main Components of the Wind Turbine [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
To date, there is a problem in the high cost of maintenance costs for wind turbines, this is due to the remote location of wind turbines from civilization, as well as the high location of the turbines above the ground [1].
FAZYLOVA Alina   +2 more
doaj  

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