Retrofit Winglets for Wind Turbines

Patrick Moriarty; Vijay Matheswaran; L. Miller

doi:10.2514/6.2019-1297

Retrofit Winglets for Wind Turbines

Patrick Moriarty, Vijay Matheswaran, L. Miller

National Wind Technology Center

Wichita State University

Research output: Contribution to conference › Paper › peer-review

5 Scopus Citations

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 (C_p) and 1.69% increase in Annual Energy Production (AEP).

Original language	American English
DOIs	https://doi.org/10.2514/6.2019-1297 https://doi.org/10.2514/6.2019-1297
State	Published - 2019
Event	AIAA Scitech Forum, 2019 - San Diego, United States Duration: 7 Jan 2019 → 11 Jan 2019

Conference

Conference	AIAA Scitech Forum, 2019
Country/Territory	United States
City	San Diego
Period	7/01/19 → 11/01/19

Bibliographical note

Publisher Copyright:
© 2019 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

NREL Publication Number

NREL/CP-5000-74491

Keywords

blades
reinforcement
retrofitting
wind turbines
winglets

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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).",

keywords = "blades, reinforcement, retrofitting, wind turbines, winglets",

author = "Patrick Moriarty and Vijay Matheswaran and L. Miller",

note = "Publisher Copyright: {\textcopyright} 2019 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.; AIAA Scitech Forum, 2019 ; Conference date: 07-01-2019 Through 11-01-2019",

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doi = "10.2514/6.2019-1297",

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T1 - Retrofit Winglets for Wind Turbines

AU - Moriarty, Patrick

AU - Matheswaran, Vijay

AU - Miller, L.

PY - 2019

Y1 - 2019

N2 - 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).

AB - 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).

KW - blades

KW - reinforcement

KW - retrofitting

KW - wind turbines

KW - winglets

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DO - 10.2514/6.2019-1297

M3 - Paper

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T2 - AIAA Scitech Forum, 2019

Y2 - 7 January 2019 through 11 January 2019

ER -

Retrofit Winglets for Wind Turbines

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

Access to Document

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