Results 31 to 40 of about 1,372,760 (431)
Definition of a 5-MW Reference Wind Turbine for Offshore System Development
, 2009 This report describes a three-bladed, upwind, variable-speed, variable blade-pitch-to-feather-controlled multimegawatt wind turbine model developed by NREL to support concept studies aimed at assessing offshore wind technology.
J. Jonkman +3 more
semanticscholar +1 more source
Wind turbine condition monitoring strategy through multiway PCA and multivariate inference [PDF]
, 2018 This article states a condition monitoring strategy for wind turbines using a statistical data-driven modeling approach by means of supervisory control and data acquisition (SCADA) data. Initially, a baseline data-based model is obtained from the healthy
Pozo Montero, Francesc +2 more
core +3 more sources
Applied Sciences, 2019 The cable cross section of an offshore wind farm power system is conventionally determined on the basis of the maximum current carrying capacity. However, this criterion cannot be matched and optimized with connection topology, which may lead to a large ...
Long Wang +3 more
doaj +1 more source
Wind turbine wakes for wind energy [PDF]
Wind Energy, 2011 During recent years, wind energy has moved from an emerging technology to a nearly competitive technology. This fact, coupled with an increasing global focus on environmental concern and a political desire of a certain level of diversification in the energy supply, ensures wind energy an important role in the future electricity market.
Larsen, Gunner C. +1 more
openaire +2 more sources
Probabilistic Design of Wind Turbines [PDF]
Energies, 2010 Probabilistic design of wind turbines requires definition of the structural elements to be included in the probabilistic basis: e.g., blades, tower, foundation; identification of important failure modes; careful stochastic modeling of the uncertain parameters; recommendations for target reliability levels and recommendation for consideration of system ...
John D. Sørensen, Henrik S. Toft
openaire +5 more sources
Dependence of optimal wind turbine spacing on wind farm length [PDF]
Wind Energy, 19: 651-663 (2016), 2017 Recent large eddy simulations have led to improved parameterizations of the effective roughness height of wind farms. This effective roughness height can be used to predict the wind velocity at hub-height as function of the geometric mean of the spanwise and streamwise turbine spacings and the turbine loading factors.
arxiv +1 more source
Investigation on the impact of design wind speed and control strategy on the performance of fixed-pitch variable-speed wind turbines [PDF]
, 2017 Wind turbine blade design optimization remains one of the fundamental research areas for modern wind turbine technology. The general design process for fixed-pitch variablespeed wind turbine blades assumes the rated wind speed as the design wind speed ...
Liu, Xiongwei +2 more
core +1 more source
Combined Effect of Rotational Augmentation and Dynamic Stall on a Horizontal Axis Wind Turbine
Energies, 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
Energies, 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
Performance Analysis of Vertical Axis Wind Turbine Clusters: Effect of Inter-Turbine Spacing and Turbine Rotation [PDF]
Physics of Fluids, 2023, 2023 Wind energy has emerged as a viable alternative to fossil fuels, with vertical axis wind turbines (VAWTs) gaining popularity due to their efficiency and adaptability. Combining the Actuator Line Method (ALM) with Large Eddy Simulation (LES) enables accurate performance evaluations, facilitating the design and optimization of wind turbines.
arxiv +1 more source