WO2011157849A3 - Rotor blade for a wind turbine - Google Patents

Rotor blade for a wind turbine Download PDF

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Publication number
WO2011157849A3
WO2011157849A3 PCT/EP2011/060242 EP2011060242W WO2011157849A3 WO 2011157849 A3 WO2011157849 A3 WO 2011157849A3 EP 2011060242 W EP2011060242 W EP 2011060242W WO 2011157849 A3 WO2011157849 A3 WO 2011157849A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor blade
trailing edge
edge
pre manufactured
length
Prior art date
Application number
PCT/EP2011/060242
Other languages
French (fr)
Other versions
WO2011157849A2 (en
Inventor
Erik Billeskov Sloth
Thomas Steiniche Bjertrup Nielsen
Esther Peterslund
Lennart Kuhlmeier
Rasmus Jensen
Original Assignee
Suzlon Blade Technology B.V.
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 Suzlon Blade Technology B.V. filed Critical Suzlon Blade Technology B.V.
Publication of WO2011157849A2 publication Critical patent/WO2011157849A2/en
Publication of WO2011157849A3 publication Critical patent/WO2011157849A3/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
    • 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
    • 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
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • 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
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • F05B2250/184—Geometry two-dimensional patterned sinusoidal
    • 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
    • F05B2260/00—Function
    • F05B2260/60—Fluid transfer
    • 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
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
    • F05B2280/6003—Composites; e.g. fibre-reinforced
    • 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
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
    • F05B2280/6013—Fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/04—Composite, e.g. fibre-reinforced
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/16—Fibres
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention concerns a rotor blade for a wind turbine comprising a leading edge and a trailing edge. At least a part of the trailing edge – in the lengthwise direction of the rotor blade – comprises at least one pre manufactured trailing edge part, where said pre manufactured trailing edge part is arranged to cover at least one lengthwise joint of at least one airfoil surface to one other structural part on the rotor blade, where the pre manufactured trailing edge part has a width of 0 to a certain percentage according to a specific rotor radius of the length of the chord of the rotor blade. The pre manufactured trailing edge is preferably made of a fibre composite material or from another suitable material in parts with a length suitable for handling and installing along a rotor blade. The above mentioned structural part can for instance be a full length or part length web, providing stiffness to the construction at the outer area near the trailing edge, by connecting two aerodynamic shell parts. The pre manufactured trailing edge part can then be fixed to a blunt and somewhat roughly shaped rear edge, and thereby act as a cover as well as a well-defined edge of the rotor blade and that the rotor blade has a thickness at the rear edge of said body of 0 to 10 %, preferably of 0 to 5 %, and even more preferred has a thickness of 3 % of the height of the body, where said rear edge has a thickness of at least 2 millimetres, said height is also known as the height of the specific airfoil profile.
PCT/EP2011/060242 2010-06-18 2011-06-20 Rotor blade for a wind turbine WO2011157849A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201070271 2010-06-18
DKPA201070271 2010-06-18

Publications (2)

Publication Number Publication Date
WO2011157849A2 WO2011157849A2 (en) 2011-12-22
WO2011157849A3 true WO2011157849A3 (en) 2012-03-15

Family

ID=44627258

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/060242 WO2011157849A2 (en) 2010-06-18 2011-06-20 Rotor blade for a wind turbine

Country Status (1)

Country Link
WO (1) WO2011157849A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2497739A (en) * 2011-12-19 2013-06-26 Rolls Royce Plc Rotor blade with serrated trailing edge
DK177533B1 (en) * 2012-05-25 2013-09-08 Envision Energy Denmark Aps Trailing edge tape
WO2014048437A1 (en) * 2012-09-25 2014-04-03 Vestas Wind Systems A/S Noise attenuator for a wind turbine blade and a method for reducing wind turbine noise
TWI537464B (en) 2012-12-07 2016-06-11 渥班資產公司 Wind turbine
US20150050154A1 (en) * 2013-05-23 2015-02-19 Kristian R. DIXON Airfoil trailing edge apparatus for noise reduction
US9638164B2 (en) 2013-10-31 2017-05-02 General Electric Company Chord extenders for a wind turbine rotor blade assembly
DK3084209T3 (en) * 2013-12-20 2020-01-13 Lm Wp Patent Holding As A wind turbine blade with deployable aerodynamic units
US11143160B2 (en) * 2014-07-14 2021-10-12 Lm Wp Patent Holding A/S Aeroshell extender piece for a wind turbine blade
US9890765B2 (en) * 2015-04-08 2018-02-13 Ge Infrastructure Technology, Llc Load compensating devices
ES2787608T3 (en) * 2015-05-29 2020-10-16 Siemens Gamesa Renewable Energy As Noise reduction flap with aperture
GB201512688D0 (en) * 2015-07-20 2015-08-26 Rolls Royce Plc Aerofoil
DE102016101485A1 (en) * 2016-01-28 2017-08-03 Wobben Properties Gmbh A method for retrofitting a Zacken retrofit unit at a trailing edge of a wind turbine rotor blade and Zacken retrofit unit for a wind turbine rotor blade
WO2017042193A1 (en) * 2015-09-10 2017-03-16 Wobben Properties Gmbh Method for retrofitting a toothed retrofitting unit on a rear edge of a wind turbine rotor blade, and toothed retrofitting unit for a wind turbine rotor blade
EP3219980B1 (en) * 2016-03-16 2019-01-02 Siemens Aktiengesellschaft Trailing edge air duct of a wind turbine rotor blade
CN114341486A (en) 2019-08-14 2022-04-12 功率曲线有限公司 Wind turbine blade with gurney flap
EP3945208A1 (en) 2020-07-27 2022-02-02 Wobben Properties GmbH Wind energy system and rotor blade for a wind energy system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK9500009U3 (en) * 1995-01-10 1996-04-10 Stiesdal Bonus Energy A Henrik Body for improving the efficiency of a wind turbine
EP1112928A2 (en) * 1999-12-31 2001-07-04 DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. Airfoil with performance enhancing trailing edge
US20030175121A1 (en) * 2002-02-22 2003-09-18 Masaaki Shibata Wind turbine provided with nacelle
US20080187442A1 (en) * 2007-02-07 2008-08-07 Kevin James Standish Rotor blade trailing edge assembly and method of use
US20090104038A1 (en) * 2005-12-20 2009-04-23 Peter Grabau Airfoil Family for a Blade of a Wind Turbine
US20100047070A1 (en) * 2006-09-15 2010-02-25 Mark Olaf Slot Optimised wind turbine blade

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1413595A (en) 1994-01-12 1995-08-01 Lm Glasfiber A/S Windmill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK9500009U3 (en) * 1995-01-10 1996-04-10 Stiesdal Bonus Energy A Henrik Body for improving the efficiency of a wind turbine
EP1112928A2 (en) * 1999-12-31 2001-07-04 DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. Airfoil with performance enhancing trailing edge
US20030175121A1 (en) * 2002-02-22 2003-09-18 Masaaki Shibata Wind turbine provided with nacelle
US20090104038A1 (en) * 2005-12-20 2009-04-23 Peter Grabau Airfoil Family for a Blade of a Wind Turbine
US20100047070A1 (en) * 2006-09-15 2010-02-25 Mark Olaf Slot Optimised wind turbine blade
US20080187442A1 (en) * 2007-02-07 2008-08-07 Kevin James Standish Rotor blade trailing edge assembly and method of use

Also Published As

Publication number Publication date
WO2011157849A2 (en) 2011-12-22

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