Results 21 to 30 of about 294,872 (332)

Using Multiple Fidelity Numerical Models for Floating Offshore Wind Turbine Advanced Control Design [PDF]

open access: yes, 2018
This paper summarises the tuning process of the Aerodynamic Platform Stabiliser control loop and its performance with Floating Offshore Wind Turbine model.
Alonso Quesada, Santiago   +6 more
core   +2 more sources

State of the Art in the Optimisation of Wind Turbine Performance Using CFD [PDF]

open access: yes, 2019
Wind energy has received increasing attention in recent years due to its sustainability and geographically wide availability. The efficiency of wind energy utilisation highly depends on the performance of wind turbines, which convert the kinetic energy ...
Haghnegahdar, Mohammad Amin   +5 more
core   +1 more source

Experimental study of yawed inflow around wind turbine rotor [PDF]

open access: yes, 2012
In this article, we present an experimental study in a wind tunnel of a three-bladed, Rutland 503 model, horizontal axis yawed wind turbine. Power measurement and an exploration downstream wake of the turbine using particle image velocimetry measurements
DIZENE, Rabah   +4 more
core   +6 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

Comparative Study of the Aerodynamic Performance of the New MEXICO Rotor under Yaw Conditions

open access: yesEnergies, 2018
The influence of yaw misalignment on the aerodynamic performance of the New MEXICO rotor is investigated using blade-resolved Computational Fluid Dynamics (CFD) approaches with three wind speeds considered at a fixed yaw angle of 30 degrees. The air-load
Yaoru Qian, Zhenyu Zhang, Tongguang Wang
doaj   +1 more source

Numerical Investigation of Passive Vortex Generators on a Wind Turbine Airfoil Undergoing Pitch Oscillations

open access: yesEnergies, 2019
Passive vortex generators (VGs) are widely used to suppress the flow separation of wind turbine blades, and hence, to improve rotor performance. VGs have been extensively investigated on stationary airfoils; however, their influence on unsteady airfoil ...
Chengyong Zhu   +2 more
doaj   +1 more source

Modeling and control of a variable speed variable pitch angle prototype wind turbine [PDF]

open access: yes, 2013
This paper focuses on modeling, control and simulation of a 500 KW horizontal axis prototype wind turbine that is being developed in the context of the MILRES (National Wind Energy Systems) Project in Turkey. The prototype turbine is designed as variable
Aksit, Mahmut Faruk   +4 more
core   +2 more sources

Combined Effect of Rotational Augmentation and Dynamic Stall on a Horizontal Axis Wind Turbine

open access: yesEnergies, 2019
Rotational augmentation and dynamic stall have been extensively investigated on horizontal axis wind turbines (HAWTs), but usually as separate topics. Although these two aerodynamic phenomena mainly determine the unsteady loads and rotor performance, the
Chengyong Zhu, Tongguang Wang, Wei Zhong
doaj   +1 more source

Active Disturbance Rejection Control for Wind Turbine Fatigue Load

open access: yesEnergies, 2022
With the participation of wind power in grid frequency modulation, the fatigue load of the wind turbine increases accordingly. A new control method that considers both fatigue load and output power of wind turbine (WT) is proposed in this paper. A linear
Xingkang Jin   +3 more
doaj   +1 more source

Study on Actuator Line Modeling of Two NREL 5-MW Wind Turbine Wakes [PDF]

open access: yes, 2018
The wind turbine wakes impact the efficiency and lifespan of the wind farm. Therefore, to improve the wind plant performance, research on wind plant control is essential. The actuator line model (ALM) is proposed to simulate the wind turbine efficiently.
Ma, Q., Yu, Z., Zheng, X.
core   +2 more sources

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