Results 1 to 10 of about 176 (64)

Performance and Effect of Load Mitigation of a Trailing-Edge Flap in a Large-Scale Offshore Wind Turbine

Journal of Marine Science and Engineering, 2020
As a result of the large-scale trend of offshore wind turbines, wind shear and turbulent wind conditions cause significant fluctuations of the wind turbine’s torque and thrust, which significantly affect the service life of the wind turbine gearbox
Xin Cai, Yazhou Wang, Bofeng Xu, Junheng Feng   +3 more
doaj   +3 more sources

Quadratic feedback–based equivalent sliding mode control of wind turbine blade section based on rigid trailing-edge flap

Measurement + Control, 2019
Modeling of aeroelastic system of wind turbine blade section based on chordwise rigid trailing-edge flap has been investigated. The flutter suppression of blade section exhibiting flap-wise bending and twist deformation is performed by equivalent sliding
Ting-Rui Liu
doaj   +2 more sources

Trailing-Edge Flap Control for Mitigating Rotor Power Fluctuations of a Large-Scale Offshore Floating Wind Turbine under the Turbulent Wind Condition

Entropy, 2018
A trailing-edge flap control strategy for mitigating rotor power fluctuations of a 5 MW offshore floating wind turbine is developed under turbulent wind inflow. The wind shear must be considered because of the large rotor diameter. The trailing-edge flap
Bofeng Xu, Junheng Feng, Tongguang Wang, Yue Yuan, Zhenzhou Zhao, Wei Zhong   +5 more
doaj   +3 more sources

Sliding Mode Control of Active Trailing-Edge Flap Based on Adaptive Reaching Law and Minimum Parameter Learning of Neural Networks

Energies, 2020
Theoretical modeling and the sliding mode control (SMC) of an active trailing-edge flap of a wind turbine blade based on the adaptive reaching law are investigated.
Tingrui Liu, Ailing Gong, Changle Song, Yuehua Wang   +3 more
doaj   +3 more sources

Numerical study on technical and conceptual improvements to a civil aircraft trailing-edge flap using passive/active flow control

Engineering Applications of Computational Fluid Mechanics, 2021
Future civil aircrafts require simple, low-noise, and highly efficient trailing-edge flaps. In this study, a detailed numerical study for flap improvements using steady and unsteady Reynolds-averaged Navier–Stokes computations was conducted.
Gang Wang, Binqian Zhang
doaj   +2 more sources

Combined Pitch and Trailing Edge Flap Control for Load Mitigation of Wind Turbines

Energies, 2018
Using active control methods for load mitigation in wind turbines could greatly reduce the cost of per kilowatt hour of wind power. In this work, the combined pitch and trailing edge flap control (CPFC) for load mitigation of wind turbines is ...
Keshan He, Liangwen Qi, Liming Zheng, Yan Chen   +3 more
doaj   +3 more sources

Effect of Trailing Edge Flaps on Power Coefficient of a Horizontal Axis Wind Turbine Model [PDF]

Port Said Engineering Research Journal, 2023
The field of wind energy has made significant progress, yet there is always room for improving the efficiency and the energy extracted from horizontal axis wind turbines HAWTs . There is interest in new renewable energy, including wind energy. This study
Mahmoud Khalil, Abd Elhady Ahmed, mohamed elsakka, Mohamed El-Ghandour   +3 more
doaj   +1 more source

Identifying the flap side‐edge noise contribution of a wind turbine blade section with an adaptive trailing edge

Wind Energy, 2023
Active trailing‐edge technology is a promising application for localized load alleviation of large‐diameter wind turbine rotors, accomplished using one or more control surfaces in the rotor blade's outer region.
A. Suryadi, C. Jätz, J.R. Seume, M. Herr   +3 more
doaj   +1 more source

Alleviation of Dynamic Stall Moments by Morphing Flap

Hangkong gongcheng jinzhan, 2021
Active deflection of trailing edge control surface can reduce the adverse effect of airfoil dynamic stall on aerodynamic characteristics.This study set out to investigate the performance of morphing flap on dynamic stall alleviation.
OUYANG Yan, KOU Xiping, GUO Hongtao, YANG Zhichun   +3 more
doaj   +1 more source

Aerodynamic Effect of Deflection Angle of Trailing Edge Flap on Vertical Axis Wind Turbine with Different Airfoils

Shanghai Jiaotong Daxue xuebao, 2022
Low power efficiency is a critical factor that restricts marketization development of the vertical axis wind turbine (VAWT). The proposal of the trailing edge flap can change flow structure on blade surface, so as to improve the aerodynamic performance ...
DAI Mengyi, ZHANG Zhihao, TU Jiahuang, HAN Zhaolong, ZHOU Dai, ZHU Hongbo
doaj   +1 more source