Results 1 to 10 of about 22,591 (53)

Seasonal effects in the long-term correction of short-term wind measurements using reanalysis data [PDF]

open access: yesWind Energy Science, 2021
Measure–correlate–predict (MCP) approaches are often used to correct wind measurements to the long-term wind conditions on-site. This paper investigates systematic errors in MCP-based long-term corrections which occur if the measurement on-site covers ...
A. Basse   +5 more
doaj   +1 more source

The Power Curve Working Group's assessment of wind turbine power performance prediction methods [PDF]

open access: yesWind Energy Science, 2020
Wind turbine power production deviates from the reference power curve in real-world atmospheric conditions. Correctly predicting turbine power performance requires models to be validated for a wide range of wind turbines using inflow in different ...
J. C. Y. Lee   +8 more
doaj   +1 more source

Wear test programs for roller-type pitch bearings of wind turbines [PDF]

open access: yesWind Energy Science, 2023
Pitch bearings are critical for the safe and efficient operation of wind turbines. They connect the rotor blades to the rotor hub and allow for pitching movements that control loads and rotor speeds.
M. Stammler
doaj   +1 more source

Wind inflow observation from load harmonics: initial steps towards a field validation [PDF]

open access: yesWind Energy Science, 2021
A previously published wind sensing method is applied to an experimental dataset obtained from a 3.5 MW turbine. The method is based on a load-wind model that correlates once-per-revolution blade load harmonics to rotor-equivalent shears and wind ...
M. Bertelè   +2 more
doaj   +1 more source

A vállalati napenergia termelés feltételrendszere = Framework for Corporate Solar Energy Production [PDF]

open access: yes, 2020
The production and use of solar energy is increasingly important not only in the private or institution sector, but in the corporate sector as well. However, there are still some elements in the regulatory system that need to be optimized.
Baranyai, Gergő   +3 more
core   +1 more source

Initial results from a field campaign of wake steering applied at a commercial wind farm – Part 1 [PDF]

open access: yesWind Energy Science, 2019
Wake steering is a form of wind farm control in which turbines use yaw offsets to affect wakes in order to yield an increase in total energy production.
P. Fleming   +20 more
doaj   +1 more source

Augmented Kalman filter with a reduced mechanical model to estimate tower loads on a land-based wind turbine: a step towards digital-twin simulations [PDF]

open access: yesWind Energy Science, 2020
This article presents an application of the Kalman filtering technique to estimate loads on a wind turbine. The approach combines a mechanical model and a set of measurements to estimate signals that are not available in the measurements, such as wind ...
E. Branlard, D. Giardina, C. S. D. Brown
doaj   +1 more source

Power curve and wake analyses of the Vestas multi-rotor demonstrator [PDF]

open access: yesWind Energy Science, 2019
Numerical simulations of the Vestas multi-rotor demonstrator (4R-V29) are compared with field measurements of power performance and remote sensing measurements of the wake deficit from a short-range WindScanner lidar system.
M. P. van der Laan   +11 more
doaj   +1 more source

Development of an interface to introduce stationary LES data to the URANS solver THETA for HAWT performance prediction

open access: yesWind Energy, 2020
The impact of different sheared velocity profiles on the performance prediction of a horizontal axis wind turbine in the atmospheric boundary layer is investigated.
Annika Länger‐Möller
doaj   +1 more source

A prediction approach using ensemble empirical mode decomposition‐permutation entropy and regularized extreme learning machine for short‐term wind speed

open access: yesWind Energy, 2020
Accurate prediction of short‐term wind speed is of great significance to the operation and maintenance of wind farms, the optimal scheduling of turbines, and the safe and stable operation of power grids.
Zhongda Tian, Shujiang Li, Yanhong Wang
doaj   +1 more source

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