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Title: Retrofit Winglets for Wind Turbines

Abstract

The benefits of using winglets on wind turbines has been well documented. However, adding winglets to wind turbine blades leads to significant increases in blade root bending moments, requiring expensive structural reinforcement with cost and weight drawbacks. A unique design philosophy for retrofitting winglets on existing wind turbines is presented. These retrofit winglets offer an increase in power produced without the need for structural reinforcement. Predicted performance and cost benefits are illustrated via a study using the NREL 5MW reference wind turbine. The addition of winglets resulted in a 2.45% increase in Coefficient of Power (Cp) and 1.69% increase in Annual Energy Production (AEP).

Authors:
 [1];  [1]; ORCiD logo [2]
  1. Wichita State University
  2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1547241
Report Number(s):
NREL/CP-5000-74491
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the AIAA SciTech 2019 Forum, 7-11 January 2019, San Diego, California
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; 42 ENGINEERING; reinforcement; retrofitting; wind turbines; winglets; blades

Citation Formats

Matheswaran, Vijay, Miller, L. Scott, and Moriarty, Patrick J. Retrofit Winglets for Wind Turbines. United States: N. p., 2019. Web. doi:10.2514/6.2019-1297.
Matheswaran, Vijay, Miller, L. Scott, & Moriarty, Patrick J. Retrofit Winglets for Wind Turbines. United States. doi:10.2514/6.2019-1297.
Matheswaran, Vijay, Miller, L. Scott, and Moriarty, Patrick J. Sun . "Retrofit Winglets for Wind Turbines". United States. doi:10.2514/6.2019-1297.
@article{osti_1547241,
title = {Retrofit Winglets for Wind Turbines},
author = {Matheswaran, Vijay and Miller, L. Scott and Moriarty, Patrick J},
abstractNote = {The benefits of using winglets on wind turbines has been well documented. However, adding winglets to wind turbine blades leads to significant increases in blade root bending moments, requiring expensive structural reinforcement with cost and weight drawbacks. A unique design philosophy for retrofitting winglets on existing wind turbines is presented. These retrofit winglets offer an increase in power produced without the need for structural reinforcement. Predicted performance and cost benefits are illustrated via a study using the NREL 5MW reference wind turbine. The addition of winglets resulted in a 2.45% increase in Coefficient of Power (Cp) and 1.69% increase in Annual Energy Production (AEP).},
doi = {10.2514/6.2019-1297},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {1}
}

Conference:
Other availability
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