Subsynchronous Control Interaction Damping using Colocated BESS in Large Wind Farms

2021 ◽  
Author(s):  
Papiya Dattaray ◽  
Peter Wall ◽  
Vladimir Terzija
Keyword(s):  
Wind Farms ◽  
Large Wind ◽  
Control Interaction

Large Wind Farms and the Scalar Flux over an Heterogeneously Rough Land Surface

2014 ◽  
Vol 153 (3) ◽  
pp. 471-495 ◽  
Author(s):  
Marc Calaf ◽  
Chad Higgins ◽  
Marc B. Parlange
Keyword(s):  
Land Surface ◽  
Wind Farms ◽  
Scalar Flux ◽  
Large Wind

A Comparative Study of the Influence of Different Wake Models on Wind Farm Layout Optimization

2021 ◽  
Author(s):  
Puyi Yang ◽  
Hamidreza Najafi
Keyword(s):  
Wind Farm ◽  
Wind Farms ◽  
Vital Role ◽  
Layout Optimization ◽  
Zone Model ◽  
Wind Farm Layout ◽  
Yaw Control ◽  
Wind Farm Layout Optimization ◽  
Wake Model ◽  
Large Wind

Abstract The accuracy of analytical wake models applied in wind farm layout optimization (WFLO) problems plays a vital role in the present era that the high-fidelity methods such as LES and RANS are still not able to handle an optimization problem for large wind farms. Based on a verity of analytical wake models developed in the past decades, FLOw Redirection and Induction in Steady State (FLORIS) has been published as a tool integrated several widely used wake models and the expansions for them. This paper compares four wake models selected from FLORIS by applying three classical WFLO scenarios. The results illustrate that the Jensen wake model is the fastest one but the defect of underestimation of velocity deficit is obvious. The Multi Zone model needs to be applied additional tunning on the parameters inside the model to fit specific wind turbines. The Gaussian-Curl wake model as an advanced expansion of the Gaussian wake model does not perform an observable improvement in the current study that the yaw control is not included. The default Gaussian wake model is recommended to be used in the WFLO projects which implemented under the FLROIS framework and has similar wind conditions with the present work.

scholarly journals Performance and Equivalent Loads of Wind Turbines in Large Wind Farms

2017 ◽  
Vol 854 ◽  
pp. 012001 ◽  
Author(s):  
Søren J. Andersen ◽  
Jens N. Sørensen ◽  
Robert F. Mikkelsen
Keyword(s):  
Wind Turbines ◽  
Wind Farms ◽  
Large Wind

Wind farm cooperative control for optimal power generation

2018 ◽  
Vol 42 (6) ◽  
pp. 547-560 ◽  
Author(s):  
Fa Wang ◽  
Mario Garcia-Sanz
Keyword(s):  
Power Generation ◽  
Wind Turbines ◽  
Cooperative Control ◽  
Wind Farm ◽  
Wind Farms ◽  
Practical Method ◽  
Individual Case ◽  
Power Coefficient ◽  
The Individual ◽  
Large Wind

The power generation of a wind farm depends on the efficiency of the individual wind turbines of the farm. In large wind farms, wind turbines usually affect each other aerodynamically at some specific wind directions. Previous studies suggest that a way to maximize the power generation of these wind farms is to reduce the generation of the first rows wind turbines to allow the next rows to generate more power (coordinated case). Yet, other studies indicate that the maximum generation of the wind farm is reached when every wind turbine works at its individual maximum power coefficient CPmax (individual case). This article studies this paradigm and proposes a practical method to evaluate when the wind farm needs to be controlled according to the individual or the coordinated case. The discussion is based on basic principles, numerical computations, and wind tunnel experiments.

scholarly journals Partitioning approach for large wind farms: Active power control for optimizing power reserve

2018 ◽  
Author(s):  
Sara Siniscalchi-Minna ◽  
Carlos Ocampo-Martinez ◽  
Fernando D. Bianchi ◽  
Mikel De-Prada-Gil ◽  
Bart De-Schutter
Keyword(s):  
Power Control ◽  
Wind Farms ◽  
Active Power ◽  
Active Power Control ◽  
Large Wind

scholarly journals Tuning turbine rotor design for very large wind farms

2018 ◽  
Vol 474 (2220) ◽  
pp. 20180237 ◽  
Author(s):  
Takafumi Nishino ◽  
William Hunter
Keyword(s):  
Wind Farm ◽  
Wind Farms ◽  
Theoretical Method ◽  
Turbine Rotor ◽  
Aerodynamic Optimization ◽  
Rotor Design ◽  
Coupling Procedure ◽  
Future Extension ◽  
Large Wind ◽  
Bem Theory

A new theoretical method is presented for future multi-scale aerodynamic optimization of very large wind farms. The new method combines a recent two-scale coupled momentum analysis of ideal wind turbine arrays with the classical blade-element-momentum (BEM) theory for turbine rotor design, making it possible to explore some potentially important relationships between the design of rotors and their performance in a very large wind farm. The details of the original two-scale momentum model are described first, followed by the new coupling procedure with the classical BEM theory and some example solutions. The example solutions, obtained using a simplified but still realistic NREL S809 aerofoil performance curve, illustrate how the aerodynamically optimal rotor design may change depending on the farm density. It is also shown that the peak power of the rotors designed optimally for a given farm (i.e. ‘tuned' rotors) could be noticeably higher than that of the rotors designed for a different farm (i.e. ‘untuned' rotors) even if the blade pitch angle is allowed to be adjusted optimally during the operation. The results presented are for ideal very large wind farms and a possible future extension of the present work for real large wind farms is also discussed briefly.

Subsynchronous control interaction studies in DFIG-based wind farms using selective modal analysis

2020 ◽  
Vol 123 ◽  
pp. 106291
Author(s):  
Nicolás E. Costa ◽  
Gustavo Revel ◽  
Diego M. Alonso ◽  
Roberto D. Fernández
Keyword(s):  
Modal Analysis ◽  
Wind Farms ◽  
Interaction Studies ◽  
Control Interaction

scholarly journals Flow visualization using momentum and energy transport tubes and applications to turbulent flow in wind farms

2013 ◽  
Vol 715 ◽  
pp. 335-358 ◽  
Author(s):  
Johan Meyers ◽  
Charles Meneveau
Keyword(s):  
Turbulent Flow ◽  
Flow Visualization ◽  
Energy Transport ◽  
Three Dimensional ◽  
Wind Farms ◽  
Mean Flow ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Using Data ◽  
Large Wind

AbstractAs a generalization of the mass–flux based classical stream tube, the concept of momentum and energy transport tubes is discussed as a flow visualization tool. These transport tubes have the property that no fluxes of momentum or energy exist over their respective tube mantles. As an example application using data from large eddy simulation, such tubes are visualized for the mean-flow structure of turbulent flow in large wind farms, in fully developed wind-turbine-array boundary layers. The three-dimensional organization of energy transport tubes changes considerably when turbine spacings are varied, enabling the visualization of the path taken by the kinetic energy flux that is ultimately available at any given turbine within the array.

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