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Title: Wind farm blockage effects: comparison of different engineering models

Abstract

The work presents four engineering methods to estimate the induction zone in front of a wind turbine and account for the wind farm blockage effect. The methods comprise the vortex cylinder model, vortex dipole model, self-similar model, and wake projection model. The majority of the models presented account for yaw misalignments and ground effect. Actuator disk simulations are used to verify the individual models. The performance of each model is evaluated both in terms of precision and computational time. The induction models are coupled to wake models within the FLOw Redirection and Induction in Steady State framework to provide the full velocity field within a wind farm. Sample wind farm computations are presented, and the impact of including induction effects into wind farm performance predictions is reported. The different codes are publicly available online.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Technical Univ. of Denmark, Roskilde (Denmark). DTU National Lab. for Wind Energy
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office
OSTI Identifier:
1665823
Report Number(s):
NREL/JA-5000-76855
Journal ID: ISSN 1742-6588; MainId:10499;UUID:7a402978-9523-4fba-8f34-37b6f73b5062;MainAdminID:17405
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 1618; Journal ID: ISSN 1742-6588
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
49 EE - Wind and Water Power Program - Wind (EE-4W); wind farm; blockage effect; induction zone; wakes

Citation Formats

Branlard, Emmanuel, Quon, Eliot, Meyer Forsting, Alexander R., King, Jennifer, and Moriarty, Patrick. Wind farm blockage effects: comparison of different engineering models. United States: N. p., 2020. Web. doi:10.1088/1742-6596/1618/6/062036.
Branlard, Emmanuel, Quon, Eliot, Meyer Forsting, Alexander R., King, Jennifer, & Moriarty, Patrick. Wind farm blockage effects: comparison of different engineering models. United States. doi:10.1088/1742-6596/1618/6/062036.
Branlard, Emmanuel, Quon, Eliot, Meyer Forsting, Alexander R., King, Jennifer, and Moriarty, Patrick. Tue . "Wind farm blockage effects: comparison of different engineering models". United States. doi:10.1088/1742-6596/1618/6/062036. https://www.osti.gov/servlets/purl/1665823.
@article{osti_1665823,
title = {Wind farm blockage effects: comparison of different engineering models},
author = {Branlard, Emmanuel and Quon, Eliot and Meyer Forsting, Alexander R. and King, Jennifer and Moriarty, Patrick},
abstractNote = {The work presents four engineering methods to estimate the induction zone in front of a wind turbine and account for the wind farm blockage effect. The methods comprise the vortex cylinder model, vortex dipole model, self-similar model, and wake projection model. The majority of the models presented account for yaw misalignments and ground effect. Actuator disk simulations are used to verify the individual models. The performance of each model is evaluated both in terms of precision and computational time. The induction models are coupled to wake models within the FLOw Redirection and Induction in Steady State framework to provide the full velocity field within a wind farm. Sample wind farm computations are presented, and the impact of including induction effects into wind farm performance predictions is reported. The different codes are publicly available online.},
doi = {10.1088/1742-6596/1618/6/062036},
journal = {Journal of Physics. Conference Series},
number = ,
volume = 1618,
place = {United States},
year = {2020},
month = {9}
}

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Works referenced in this record:

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