Results 31 to 40 of about 135,349 (273)
Experimental Study of a Reference Model Vertical-Axis Cross-Flow Turbine. [PDF]
PLoS ONE, 2016 The mechanical power, total rotor drag, and near-wake velocity of a 1:6 scale model (1.075 m diameter) of the US Department of Energy's Reference Model vertical-axis cross-flow turbine were measured experimentally in a towing tank, to provide a ...
Peter Bachant +3 more
doaj +1 more source
The impact of diffuser augmentation on a tidal stream turbine [PDF]
, 2015 The results from an experimental study of a model diffuser augmented tidal stream turbine are presented with a particular focus on the impact of the diffuser upon the turbine's performance in yawed flows.
Cresswell, N.W. +7 more
core +2 more sources
Energies, 2017 This paper proposes a short-term frequency-response scheme of a doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) for improving rotor speed recovery and frequency nadir.
Dejian Yang +6 more
doaj +1 more source
Energies, 2020 The large-scale application of wind power eases the shortage of conventional energy, but it also brings great hidden danger to the stability and security of the power grid because wind power has no ability for frequency regulation.
Xiangwu Yan, Xuewei Sun
doaj +1 more source
Recovery processes in a large offshore wind farm [PDF]
Wind Energy Science, 2021 Wind turbines in a wind farm extract energy from the atmospheric flow and convert it into electricity, resulting in a localized momentum deficit in the wake that reduces energy availability for downwind turbines.
T. Gupta, S. Baidya Roy
doaj +1 more source
Evaluation of flotation process course on the example of sulphide ores [PDF]
E3S Web of Conferences, 2017 The article concerns investigations over the influence of selected parameters of the flotation process course on the values of technological indices of beneficiation process assessment.
Oleksik Konrad +2 more
doaj +2 more sources
Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
Frontiers in Energy Research, 2021 With the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic ...
Yien Xu, Hongmei Wang
doaj +1 more source
Power curve and wake analyses of the Vestas multi-rotor demonstrator [PDF]
Wind 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
Rotor Side Speed Control Methods Using MATLAB/Simulink for Wound Induction Motor [PDF]
, 2017 In recent advancements in electric machine and drives, wound rotor motor is extensively used. The merit of using wound rotor induction motor is to control speed/torque characteristics by inserting external resistance.
Roopali Dogra +2 more
core +1 more source
DYNAMICAL CHARACTERISTICS OF BLAST FURNACE TOP GAS RECOVERY TURBINE UNIT ROTOR (MT) [PDF]
, 2023 Aiming at the problems of high vibration and low efficiency of TRT rotor, the dynamic characteristics of TRT rotor are studied. The geometric modeling of the rotor is carried out by using 3D software UG, and imported into Ansys Workbench to establish a ...
GOU YuJun +4 more
core +1 more source