Field testing of morphing flaps on a wind turbine blade using an outdoor rotating rig

Qing Ai, Paul M. Weaver*, Athanasios Barlas, Anders Smærup Olsen, Helge Aagaard Madsen , Tom Løgstrup Andersen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In recent years, active flap devices on wind turbine blades have been shown to both reduce peak loads at the tower and extend blade fatigue life. Associated benefits include retrofitting existing tower infrastructure with longer and greater energy-producing blades whilst also extending service life of blades. In the current work, a novel wind turbine blade control method using morphing flaps has been successfully investigated and demonstrated using a scaled demonstrator mounted on an outdoor rotating test rig. Shape adaptive structures that remain conformal to the flow are increasingly referred to as morphing devices. As part of the INNWind.eu project, a novel morphing flap device was developed for a recently designed aerofoil. The proposed morphing flap comprises a light-weight carbon fibre laminate, 3D printed honeycomb core and a flexible silicone surface. A comprehensive test campaign using an outdoor rotating test rig under atmospheric conditions was carried out to assess the potential effectiveness. As shown by experimental data, the morphing flap provides good performance in terms of aerodynamic lift control of the blade and can provide dynamic load alleviation capability.
Original languageEnglish
JournalRenewable Energy
Volume133
Pages (from-to)53-65
Number of pages13
ISSN0960-1481
DOIs
Publication statusPublished - 2019

Keywords

  • Morphing flap
  • Turbine blade
  • Load control
  • Rotating test rig
  • Dynamic

Cite this

@article{b4e518ac15514cbf82be786eaf70ddfe,
title = "Field testing of morphing flaps on a wind turbine blade using an outdoor rotating rig",
abstract = "In recent years, active flap devices on wind turbine blades have been shown to both reduce peak loads at the tower and extend blade fatigue life. Associated benefits include retrofitting existing tower infrastructure with longer and greater energy-producing blades whilst also extending service life of blades. In the current work, a novel wind turbine blade control method using morphing flaps has been successfully investigated and demonstrated using a scaled demonstrator mounted on an outdoor rotating test rig. Shape adaptive structures that remain conformal to the flow are increasingly referred to as morphing devices. As part of the INNWind.eu project, a novel morphing flap device was developed for a recently designed aerofoil. The proposed morphing flap comprises a light-weight carbon fibre laminate, 3D printed honeycomb core and a flexible silicone surface. A comprehensive test campaign using an outdoor rotating test rig under atmospheric conditions was carried out to assess the potential effectiveness. As shown by experimental data, the morphing flap provides good performance in terms of aerodynamic lift control of the blade and can provide dynamic load alleviation capability.",
keywords = "Morphing flap, Turbine blade, Load control, Rotating test rig, Dynamic",
author = "Qing Ai and Weaver, {Paul M.} and Athanasios Barlas and Olsen, {Anders Sm{\ae}rup} and {Aagaard Madsen}, Helge and {L{\o}gstrup Andersen}, Tom",
year = "2019",
doi = "10.1016/j.renene.2018.09.092",
language = "English",
volume = "133",
pages = "53--65",
journal = "Renewable Energy",
issn = "0960-1481",
publisher = "Pergamon Press",

}

Field testing of morphing flaps on a wind turbine blade using an outdoor rotating rig. / Ai, Qing; Weaver, Paul M.; Barlas, Athanasios; Olsen, Anders Smærup; Aagaard Madsen , Helge; Løgstrup Andersen, Tom.

In: Renewable Energy, Vol. 133, 2019, p. 53-65.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Field testing of morphing flaps on a wind turbine blade using an outdoor rotating rig

AU - Ai, Qing

AU - Weaver, Paul M.

AU - Barlas, Athanasios

AU - Olsen, Anders Smærup

AU - Aagaard Madsen , Helge

AU - Løgstrup Andersen, Tom

PY - 2019

Y1 - 2019

N2 - In recent years, active flap devices on wind turbine blades have been shown to both reduce peak loads at the tower and extend blade fatigue life. Associated benefits include retrofitting existing tower infrastructure with longer and greater energy-producing blades whilst also extending service life of blades. In the current work, a novel wind turbine blade control method using morphing flaps has been successfully investigated and demonstrated using a scaled demonstrator mounted on an outdoor rotating test rig. Shape adaptive structures that remain conformal to the flow are increasingly referred to as morphing devices. As part of the INNWind.eu project, a novel morphing flap device was developed for a recently designed aerofoil. The proposed morphing flap comprises a light-weight carbon fibre laminate, 3D printed honeycomb core and a flexible silicone surface. A comprehensive test campaign using an outdoor rotating test rig under atmospheric conditions was carried out to assess the potential effectiveness. As shown by experimental data, the morphing flap provides good performance in terms of aerodynamic lift control of the blade and can provide dynamic load alleviation capability.

AB - In recent years, active flap devices on wind turbine blades have been shown to both reduce peak loads at the tower and extend blade fatigue life. Associated benefits include retrofitting existing tower infrastructure with longer and greater energy-producing blades whilst also extending service life of blades. In the current work, a novel wind turbine blade control method using morphing flaps has been successfully investigated and demonstrated using a scaled demonstrator mounted on an outdoor rotating test rig. Shape adaptive structures that remain conformal to the flow are increasingly referred to as morphing devices. As part of the INNWind.eu project, a novel morphing flap device was developed for a recently designed aerofoil. The proposed morphing flap comprises a light-weight carbon fibre laminate, 3D printed honeycomb core and a flexible silicone surface. A comprehensive test campaign using an outdoor rotating test rig under atmospheric conditions was carried out to assess the potential effectiveness. As shown by experimental data, the morphing flap provides good performance in terms of aerodynamic lift control of the blade and can provide dynamic load alleviation capability.

KW - Morphing flap

KW - Turbine blade

KW - Load control

KW - Rotating test rig

KW - Dynamic

U2 - 10.1016/j.renene.2018.09.092

DO - 10.1016/j.renene.2018.09.092

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VL - 133

SP - 53

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JO - Renewable Energy

JF - Renewable Energy

SN - 0960-1481

ER -