WO2008052677A3 - Wind rotor blade and wind turbine comprising such blade - Google Patents

Wind rotor blade and wind turbine comprising such blade Download PDF

Info

Publication number
WO2008052677A3
WO2008052677A3 PCT/EP2007/009147 EP2007009147W WO2008052677A3 WO 2008052677 A3 WO2008052677 A3 WO 2008052677A3 EP 2007009147 W EP2007009147 W EP 2007009147W WO 2008052677 A3 WO2008052677 A3 WO 2008052677A3
Authority
WO
WIPO (PCT)
Prior art keywords
blade
load
distal end
proximal end
hub
Prior art date
Application number
PCT/EP2007/009147
Other languages
French (fr)
Other versions
WO2008052677A2 (en
Inventor
Michael B Warek
Original Assignee
Lignum Vitae Ltd
Michael B Warek
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 Lignum Vitae Ltd, Michael B Warek filed Critical Lignum Vitae Ltd
Priority to EP07819211A priority Critical patent/EP2153058A2/en
Publication of WO2008052677A2 publication Critical patent/WO2008052677A2/en
Publication of WO2008052677A3 publication Critical patent/WO2008052677A3/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
    • 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
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
    • 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
    • F03D15/00—Transmission of mechanical power
    • F03D15/05—Transmission of mechanical power using hollow exhausting 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • 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
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • 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
    • F03D7/0256—Stall control
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/30—Lightning protection
    • 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
    • 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
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F05B2240/311—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape flexible or elastic
    • 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
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The present invention relates to a wind rotor blade (1) for a wind turbine which is attachable to a hub (2) of the wind turbine at a preliminary adjusted blade pitch such that when a load is applied to the blade by the wind, the blade translates the load into thrust and torque that apply a rotational force to the hub about a rotational axis of the hub, the blade comprising a proximal end (3) configured to be attached to the hub, a distal end (5) opposite the proximal end, a windward side that extends from the proximal end to the distal end and faces a direction from which the load is applied and comprising at least one section of a leading edge fairing (7), a leeward side that extends from the proximal end to the distal end and which is opposite from the windward side and comprising at least one section of a trailing edge fairing (9), a central load bearing part or spar (11) extending essentially from the proximal end to the distal end of the blade and being capable to twist around a central axis of the spar, said at least one leading edge fairing and said at least one trailing edge fairing being attached to the central spar, wherein the blade responds to increases of the load applied by flexing to continuously change the blade pitch of said at least one leading and trailing edge fairing from the proximal end to the distal end of the blade, wherein the blade pitch is subject to a change from a positive lift to a negative lift along the blade from the proximal to the distal end thereof, so that the negative lift counteracts some of the positive lift in order to reduce the thrust and torque experienced by the blade as a result of the load.
PCT/EP2007/009147 2006-11-02 2007-10-22 Wind rotor blade and wind turbine comprising such blade WO2008052677A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07819211A EP2153058A2 (en) 2006-11-02 2007-10-22 Wind rotor blade and wind turbine comprising such blade

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2006060480 2006-11-02
USPCT/US2006/060480 2006-11-02

Publications (2)

Publication Number Publication Date
WO2008052677A2 WO2008052677A2 (en) 2008-05-08
WO2008052677A3 true WO2008052677A3 (en) 2008-09-18

Family

ID=39344628

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/009147 WO2008052677A2 (en) 2006-11-02 2007-10-22 Wind rotor blade and wind turbine comprising such blade

Country Status (2)

Country Link
EP (1) EP2153058A2 (en)
WO (1) WO2008052677A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103334872A (en) * 2013-06-08 2013-10-02 中国大唐集团科学技术研究院有限公司 Wind turbine blade and wind turbine
CN103032260B (en) * 2011-10-06 2016-02-17 通用电气公司 There is the wind turbine rotor blade of the trailing edge that passive type changes
CN107735571A (en) * 2015-07-08 2018-02-23 株式会社铃诗苑 Wind turbine blade and its manufacture method

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123848B (en) 2008-06-20 2014-08-13 维斯塔斯风力系统有限公司 A method of manufacturing a spar for a wind turbine from elements having geometrically well-defined joint surface portions, and the related spar
US8777579B2 (en) 2008-06-20 2014-07-15 Vestas Wind Systems A/S Method of manufacturing a spar for a wind turbine from elements comprising different materials
CN102123849B (en) 2008-06-20 2015-03-11 维斯塔斯风力系统有限公司 A method of manufacturing a spar for a wind turbine from elements having end portions extending transversely to an intermediate portion
GB2462308A (en) * 2008-08-01 2010-02-03 Vestas Wind Sys As Extension portion for wind turbine blade
ES2341074B1 (en) * 2008-10-28 2011-05-20 GAMESA INNOVATION & TECHNOLOGY, S.L A MULTI-PANEL AEROGENERATOR SHOVEL WITH INTEGRATED ROOT.
US7854594B2 (en) * 2009-04-28 2010-12-21 General Electric Company Segmented wind turbine blade
DE102009023001A1 (en) * 2009-05-28 2010-12-02 Smart Blade Gmbh Modular rotor blade for use in rotor of wind power plant, has profiled sections running via longitudinal extension of blade and twistably arranged with respect to each other so that profiled sections have offset with respect to each other
FR2956856A1 (en) 2010-02-26 2011-09-02 Eurocopter France ADAPTIVE WHEEL BLADE AND ROTOR WITH SUCH BLADE
DK2366892T3 (en) * 2010-03-18 2014-11-10 Nordex Energy Gmbh Wind power installation rotor blade-
FI20105594L (en) * 2010-05-26 2011-11-27 Meteco Oy A shovel and a method of making it
DE102010040596A1 (en) * 2010-09-10 2012-03-15 Aloys Wobben Removable rotor blade tip
US8186964B2 (en) * 2010-12-10 2012-05-29 General Electric Company Spar assembly for a wind turbine rotor blade
WO2012110486A1 (en) 2011-02-14 2012-08-23 Se Blades Technology B.V. A blade for a wind turbine and a production method therefore
EP2587050B1 (en) * 2011-10-27 2019-06-19 Siemens Gamesa Renewable Energy A/S Rotor blade
DE102012209935A1 (en) * 2011-12-08 2013-06-13 Wobben Properties Gmbh Rear box, rotor blade with rear box and wind turbine with such rotor blade
CN102650262B (en) * 2012-04-24 2017-02-08 李�杰 Blade underspeed-controllable vertical axis wind turbine
US20130315747A1 (en) * 2012-05-23 2013-11-28 Karsten Schibsbye Wind turbine blade with improved geometry for reinforcing fibers
US20140234115A1 (en) * 2013-02-19 2014-08-21 Karsten Schibsbye Wind turbine blade having twisted spar web
JP6523830B2 (en) * 2015-07-08 2019-06-05 Ntn株式会社 Wind turbine blade manufacturing method
JP6523831B2 (en) * 2015-07-08 2019-06-05 Ntn株式会社 Windmill blade
US20190360456A1 (en) * 2018-05-25 2019-11-28 Phillip Ridings WyndBlade / New blade for Wind Turbines
US11346320B2 (en) 2018-05-31 2022-05-31 Vestas Wind Systems A/S Wind turbine blade leading edge pairing

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459381A1 (en) * 1979-06-21 1981-01-09 Budd Co LONG TERMINAL ASSEMBLY FOR A FULLY FULLY BLADE STRUCTURE, AND METHOD OF MAKING SAME
US4339230A (en) * 1980-04-22 1982-07-13 Hercules Incorporated Bifoil blade
EP0258926A1 (en) * 1986-08-18 1988-03-09 Strijense Kunststof Technieken B.V. Wind turbine rotor with two rotor blades
GB2216606A (en) * 1988-03-23 1989-10-11 George Jeronimidis Fluid dynamic structures containing anisotropic material
US4976587A (en) * 1988-07-20 1990-12-11 Dwr Wind Technologies Inc. Composite wind turbine rotor blade and method for making same
FR2758594A1 (en) * 1997-01-20 1998-07-24 Alexandroff Gregoire IMPROVEMENTS ON BIROTORS AEROGENERATORS
WO2001046582A2 (en) * 1999-12-22 2001-06-28 Aerodyn Engineering Gmbh Rotor blade for wind power installations
US6327957B1 (en) * 1998-01-09 2001-12-11 Wind Eagle Joint Venture Wind-driven electric generator apparatus of the downwind type with flexible changeable-pitch blades

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459381A1 (en) * 1979-06-21 1981-01-09 Budd Co LONG TERMINAL ASSEMBLY FOR A FULLY FULLY BLADE STRUCTURE, AND METHOD OF MAKING SAME
US4339230A (en) * 1980-04-22 1982-07-13 Hercules Incorporated Bifoil blade
EP0258926A1 (en) * 1986-08-18 1988-03-09 Strijense Kunststof Technieken B.V. Wind turbine rotor with two rotor blades
GB2216606A (en) * 1988-03-23 1989-10-11 George Jeronimidis Fluid dynamic structures containing anisotropic material
US4976587A (en) * 1988-07-20 1990-12-11 Dwr Wind Technologies Inc. Composite wind turbine rotor blade and method for making same
FR2758594A1 (en) * 1997-01-20 1998-07-24 Alexandroff Gregoire IMPROVEMENTS ON BIROTORS AEROGENERATORS
US6327957B1 (en) * 1998-01-09 2001-12-11 Wind Eagle Joint Venture Wind-driven electric generator apparatus of the downwind type with flexible changeable-pitch blades
WO2001046582A2 (en) * 1999-12-22 2001-06-28 Aerodyn Engineering Gmbh Rotor blade for wind power installations

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032260B (en) * 2011-10-06 2016-02-17 通用电气公司 There is the wind turbine rotor blade of the trailing edge that passive type changes
CN103334872A (en) * 2013-06-08 2013-10-02 中国大唐集团科学技术研究院有限公司 Wind turbine blade and wind turbine
CN103334872B (en) * 2013-06-08 2015-07-15 中国大唐集团科学技术研究院有限公司 Wind turbine blade and wind turbine
CN107735571A (en) * 2015-07-08 2018-02-23 株式会社铃诗苑 Wind turbine blade and its manufacture method
CN107735571B (en) * 2015-07-08 2020-04-17 Ntn株式会社 Wind turbine blade and method of manufacturing the same

Also Published As

Publication number Publication date
WO2008052677A2 (en) 2008-05-08
EP2153058A2 (en) 2010-02-17

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