WO2011026495A3 - Wind turbine rotor blade - Google Patents

Wind turbine rotor blade Download PDF

Info

Publication number
WO2011026495A3
WO2011026495A3 PCT/DK2010/050226 DK2010050226W WO2011026495A3 WO 2011026495 A3 WO2011026495 A3 WO 2011026495A3 DK 2010050226 W DK2010050226 W DK 2010050226W WO 2011026495 A3 WO2011026495 A3 WO 2011026495A3
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
rotor blade
wind turbine
turbine rotor
change
Prior art date
Application number
PCT/DK2010/050226
Other languages
French (fr)
Other versions
WO2011026495A2 (en
Inventor
Tim Behrens
Carsten Hein Westergaard
Original Assignee
Vestas Wind Systems A/S
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vestas Wind Systems A/S filed Critical Vestas Wind Systems A/S
Publication of WO2011026495A2 publication Critical patent/WO2011026495A2/en
Publication of WO2011026495A3 publication Critical patent/WO2011026495A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0232—Adjusting aerodynamic properties of the blades with flaps or slats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/305—Flaps, slats or spoilers
    • F05B2240/3052—Flaps, slats or spoilers adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/301—Pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

A wind turbine rotor blade comprising: a flap for modifying the aerodynamic surface of the rotor blade; a chamber disposed in the rotor blade and configured such that movement of the flap causes a property change in the chamber, the property change being a change of air pressure within the chamber and/or a change of the volume of air in the chamber; a nozzle disposed on the aerodynamic surface of the rotor blade and in fluid communication with the chamber; wherein the chamber and the first nozzle are configured such that the property change in the chamber generates an air mass flow through the nozzle.
PCT/DK2010/050226 2009-09-04 2010-09-01 Wind turbine rotor blade WO2011026495A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA200970107 2009-09-04
DKPA200970107 2009-09-04
US24196109P 2009-09-14 2009-09-14
US61/241,961 2009-09-14

Publications (2)

Publication Number Publication Date
WO2011026495A2 WO2011026495A2 (en) 2011-03-10
WO2011026495A3 true WO2011026495A3 (en) 2011-07-14

Family

ID=43649695

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2010/050226 WO2011026495A2 (en) 2009-09-04 2010-09-01 Wind turbine rotor blade

Country Status (1)

Country Link
WO (1) WO2011026495A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013045601A1 (en) * 2011-09-29 2013-04-04 Lm Wind Power A/S A wind turbine blade
EP2628946B1 (en) 2012-02-20 2017-09-27 GE Renewable Technologies Aerodynamic blade and method of controlling the lift of such a blade
EP2653718A1 (en) * 2012-04-19 2013-10-23 LM Wind Power A/S A wind turbine blade having reduced drag
CN108374751B (en) * 2018-01-25 2020-01-21 上海理工大学 Sectional type blade device capable of automatically opening and closing wing gap jet flow
EP3667077A1 (en) * 2018-12-13 2020-06-17 Siemens Gamesa Renewable Energy A/S Quick adaptation of wind turbine blade flow regulation
EP3667070A1 (en) * 2018-12-13 2020-06-17 Siemens Gamesa Renewable Energy A/S Safe state of an adaptable wind turbine blade
EP3907401A1 (en) * 2020-05-05 2021-11-10 Siemens Gamesa Renewable Energy A/S Lift modifying device for a rotor blade, rotor blade of a wind turbine and method for modifying the lift of a rotor blade

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290585A1 (en) * 1974-11-07 1976-06-04 Morin Bernard Blade with variable profile for windmill rotor - has profile controlled by wind force and rotor speed
WO2002051730A2 (en) * 2000-12-23 2002-07-04 Aloys Wobben Rotor blade for a wind power installation
WO2007045940A1 (en) * 2005-10-17 2007-04-26 Vestas Wind Systems A/S Wind turbine blade with variable aerodynamic profile
US20090074573A1 (en) * 2007-09-14 2009-03-19 Gamesa Innovation & Technology, S.L. Wind turbine blade with cambering flaps controlled by surface pressure changes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008131800A1 (en) 2007-04-30 2008-11-06 Vestas Wind Systems A/S A wind turbine blade

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290585A1 (en) * 1974-11-07 1976-06-04 Morin Bernard Blade with variable profile for windmill rotor - has profile controlled by wind force and rotor speed
WO2002051730A2 (en) * 2000-12-23 2002-07-04 Aloys Wobben Rotor blade for a wind power installation
WO2007045940A1 (en) * 2005-10-17 2007-04-26 Vestas Wind Systems A/S Wind turbine blade with variable aerodynamic profile
US20090074573A1 (en) * 2007-09-14 2009-03-19 Gamesa Innovation & Technology, S.L. Wind turbine blade with cambering flaps controlled by surface pressure changes

Also Published As

Publication number Publication date
WO2011026495A2 (en) 2011-03-10

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