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Wind Turbine Wakes

Article A BEM-based actuator disk model for wind turbine wakes considering atmospheric stability

Article A BEM-based actuator disk model for wind turbine wakes considering atmospheric stability

... affects wind turbine wakes ...in wind farm engineering applications due to its expensive ...make wind farm simulations computationally affordable, this paper proposes a new actuator ...

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Article Monin-Obukhov similarity theory for modeling of wind turbine wakes under atmospheric stable conditions: breakdown and modifications

Article Monin-Obukhov similarity theory for modeling of wind turbine wakes under atmospheric stable conditions: breakdown and modifications

... models based on MOST and a modified one based on the new similarity functions are investigated through numerical simulations. These turbulence models are combined with the actuator disk model (AD) and Reynolds-averaged ...

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Quantifying error of lidar and sodar Doppler beam swinging measurements of wind turbine wakes using computational fluid dynamics

Quantifying error of lidar and sodar Doppler beam swinging measurements of wind turbine wakes using computational fluid dynamics

... characterize wind tur- bine wakes with sodar (Barthelmie et ...as wind turbine wakes are vulnerable to errors, and interpretations of field observations should ac- count for this ...

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

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

... The wind turbine wakes impact the efficiency and lifespan of the wind ...the wind plant performance, research on wind plant control is ...the wind turbine ...5-MW) ...

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An improved k –ω turbulence model for the simulations of the wind turbine wakes in a neutral atmospheric boundary layer flow

An improved k –ω turbulence model for the simulations of the wind turbine wakes in a neutral atmospheric boundary layer flow

... Bouras, I., Ma, L., Ingham, D. et al. (1 more author) (2018) An improved k –ω turbulence model for the simulations of the wind turbine wakes in a neutral atmospheric boundary layer flow. Journal of ...

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Three-dimensional structure of wind turbine wakes as measured by scanning lidar

Three-dimensional structure of wind turbine wakes as measured by scanning lidar

... of wind tunnel simu- lations, such as down-scaled geometric dimensions and low Reynolds numbers (Iungo et ...characterize wind turbine wakes. These instruments can measure wind ...

16

On the self-similarity of wind turbine wakes in  a complex terrain using large eddy simulation

On the self-similarity of wind turbine wakes in a complex terrain using large eddy simulation

... Rotor wakes have a consequential impact on the efficiency of a wind farm, as the turbines standing in wake generally face lower wind speeds along with enhanced turbulence levels (Barthelmie et ...of ...

12

Wind tunnel experiments on wind turbine wakes in yaw: redefining the wake width

Wind tunnel experiments on wind turbine wakes in yaw: redefining the wake width

... the wakes be- hind yawed wind turbines, this study examines the wakes behind model wind turbines during yaw ...varying turbine models are ...a wind turbine is modeled by a ...

17

Wind tunnel experiments on wind turbine wakes in yaw: effects of inflow turbulence and shear

Wind tunnel experiments on wind turbine wakes in yaw: effects of inflow turbulence and shear

... yawed turbine was reported by Grant et ...model turbine of D = ...model turbine of D = ...yawed turbine was developed by Schepers (1999), which was based on inflow measure- ments in front of ...

15

3-D shear-layer model for the simulation of multiple wind turbine wakes: description and first assessment

3-D shear-layer model for the simulation of multiple wind turbine wakes: description and first assessment

... offshore wind farms has strongly increased in the last years and at the same time the need for more precise estimations of the wind farm efficiency ...between wakes has become a relevant aspect for ...

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Evaluation of the wind farm parameterization in the Weather Research and Forecasting model (version 3.8.1) with meteorological and turbine power data

Evaluation of the wind farm parameterization in the Weather Research and Forecasting model (version 3.8.1) with meteorological and turbine power data

... of wind-power production are necessary to facilitate the integration of wind energy into power grids, and these forecasts should incorporate the impact of wind- turbine ...the wind farm ...

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Automated wind turbine wake characterization in complex terrain

Automated wind turbine wake characterization in complex terrain

... the wind turbine at a location in the cen- tral valley ...of wind turbine wakes in complex ...the wind climatology for the site, and results from the test experiment Perdigão ...

22

Analysis of wide-area availability of wind generators during storm events

Analysis of wide-area availability of wind generators during storm events

... high wind speed shutdown (HWSS) events, the power outputs of wind power plants may be subject to high ramp rates, causing issues for the System Operator (SO) in predicting total wind output, ...

6

Study of SVM Based Controller for Grid Connected Wind Turbine

Study of SVM Based Controller for Grid Connected Wind Turbine

... a wind turbine system are illustrated in Fig.1, including a turbine blade, generator, rectifier, power electronic system ...[1]. Wind turbines capture the power from wind by means of ...

12

Statistical forecasting for offshore wind helicopter operations

Statistical forecasting for offshore wind helicopter operations

... The results show that the probabilistic models presented are capable of reducing forecast error when compared to a baseline persistence model in most cases. However, the performance of the models is shown to be sensitive ...

7

A Method for Wind Farm Reactive Power Controlling using DIgSILENT and MATLAB

A Method for Wind Farm Reactive Power Controlling using DIgSILENT and MATLAB

... of wind farm in the power generation test of 33 sets of wind turbines is shown in Figure ...single turbine also uses close-loop control while receiving control demand, and there’s no dead zone, ...

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WIND JET TURBINE

WIND JET TURBINE

... to wind turbine efficiency will allow the limits of today to be surpassed, and someday be able to extract all of the energy from the wind with only a few improvements in ...

6

Design of a small wind turbine for a rural community in Australia

Design of a small wind turbine for a rural community in Australia

... The drive train includes the shaft, gearbox, coupling, mechanical brake and generator. For this SWT design a gearbox is not necessary due to the low power requirements of the design and to minimise overall complexity. ...

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Active Power Control of Wind Farm Equipped DFIG Wind Turbines with Energy Storage System

Active Power Control of Wind Farm Equipped DFIG Wind Turbines with Energy Storage System

... Large wind turbine are subjected harmful loads that arise from spatially uneven and temporarly unsteady on coming Wind such loads are known sources of fatigue damage that reduce the turbine ...

8

Mass Optimization of HAWT Blades Using Composite Material and to Study its Aerodynamics Using CFD Ankita C. Bagul, Arun M. Kulkarni, Amol S. Dayma

Mass Optimization of HAWT Blades Using Composite Material and to Study its Aerodynamics Using CFD Ankita C. Bagul, Arun M. Kulkarni, Amol S. Dayma

... 1.5MW wind turbine blade is used as a reference wind turbine blade and our objective is to develop an optimization process for FSI system and obtain optimum blade design to minimize weight, ...

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