DK177907B1 - Wind turbine blade with wave shaped trailing edge - Google Patents

Wind turbine blade with wave shaped trailing edge Download PDF

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Publication number
DK177907B1
DK177907B1 DK201370712A DKPA201370712A DK177907B1 DK 177907 B1 DK177907 B1 DK 177907B1 DK 201370712 A DK201370712 A DK 201370712A DK PA201370712 A DKPA201370712 A DK PA201370712A DK 177907 B1 DK177907 B1 DK 177907B1
Authority
DK
Denmark
Prior art keywords
wind turbine
elements
profile
blade
trailing edge
Prior art date
Application number
DK201370712A
Other languages
English (en)
Inventor
Tommy Sørensen
Original Assignee
Envision Energy Denmark Aps
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 Envision Energy Denmark Aps filed Critical Envision Energy Denmark Aps
Priority to DK201370712A priority Critical patent/DK177907B1/en
Publication of DK201370712A publication Critical patent/DK201370712A/da
Priority to CA2931075A priority patent/CA2931075A1/en
Priority to US15/037,435 priority patent/US20160290314A1/en
Priority to CN201480050854.9A priority patent/CN105556115B/zh
Priority to PCT/DK2014/050320 priority patent/WO2015074661A1/en
Priority to EP14864569.0A priority patent/EP3071830B1/en
Application granted granted Critical
Publication of DK177907B1 publication Critical patent/DK177907B1/en

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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
    • 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
    • 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
    • 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
    • F05B2250/60—Structure; Surface texture
    • F05B2250/61—Structure; Surface texture corrugated
    • F05B2250/611—Structure; Surface texture corrugated undulated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/184—Two-dimensional patterned sinusoidal
    • 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

Claims (9)

1. Vindturbine (1, 10) omfattende: - et vindturbinetårn (4) med en top, 5. en maskinkabine (5) koblet til vindturbinetårnets (4) top, - et rotornav (6) roterbart monteret på maskinkabinen (5), - mindst et vindturbineblad (7, 11), som er koblet til rotomavet (6), hvor vindturbine-bladet (7, 11) har en aerodynamisk profil, der omfatter en første overflade (16), som definerer en trykside, og en anden overflade (17), som definerer en sugeside, og som 10 er indbyrdes forbundet via en forkant (14) og en bagkant (15), hvor - to eller flere første elementer (26) er arrangeret langs mindst en del af bagkanten (15) af vindturbinebladet (7, 11), og mindst et andet element (27) er arrangeret mellem to tilstødende første elementer, hvori de første og andre elementer (26, 27) danner et sammenhængende profil (24, 25), der strækker sig langs bagkanten (15), hvor hvert 15 element forløber i en korderetning mod forkanten (14), hvori hvert første element (26) og hvert tilstødende andet element (27) definerer et afsnit af det sammenhængende profil (24, 25), kendetegnet ved, at - mindst de første elementer (26) er udformet som fremspring, der strækker sig udad 20 fra en af de to overflader (16, 17) og er konfigureret til at deformeres (33) i en kantretning, hvori det første element (26) og det andet element (27) definerer en længde (L) og en højde (H) af hvert afsnit.
2. Vindturbine ifølge krav 1, kendetegnet ved, at de andre elementer (26, 27) er yder-25 ligere formet som fremspring, der strækker sig udad fra en af de to overflader (16, 17) og er konfigureret til at deformeres (33) i en kantretning, hvori et (26) af de to elementer strækker sig mod tryksiden (16) og det andet element (17) strækker sig mod sugesiden (17).
3. Vindturbine ifølge krav 1 eller 2, kendetegnet ved, at højden (H) af mindst de første elementer (26) aftager fra bagkanten (15) mod forkanten (14) og/eller fra en første position (28) mod en anden position (29) i en kantretning. DK 177907 B1 16
4. Vindturbine ifølge et af de foregående krav, kendetegnet ved, at forholdet mellem højden (H) og længden (L) af afsnittet er mindst 1:1.
5. Vindturbine ifølge et af de foregående krav, kendetegnet ved, at det sammenhæn-5 gende profil (24, 25) strækker sig fra en første position (28), f.eks. en bladrod eller inderbladende, mod en anden position (29), f.eks. en spidsende eller yderbladende.
6. Vindturbine ifølge et af de foregående krav, kendetegnet ved, at vindturbinebladet (7, 11) omfatter en første skaldel (18) koblet til en anden skaldel (19), hvor den sam- 10 menhængende profil (24, 25) er koblet til eller integreret i mindst en af skaldelene (18, 19).
7. Vindturbine ifølge krav 6, kendetegnet ved, at et første sammenhængende profil (24) er arrangeret i den første skaldel (18), og et andet sammenhængende profil (25) er 15 arrangeret i den anden skaldel (19).
8. Vindturbine ifølge et af de foregående krav, kendetegnet ved, at det sammenhængende profil (24, 25) omfatter et laminat af mindst to lag, der omfatter en flerhed af fibre, hvori fibrenes i et af lagene er arrangeret i en første aksialretning, f.eks. + 45°, i 20 forhold til længden af det sammenhængende profil (24, 25), og fibrene i det andet lag er arrangeret i en anden aksialretning, f.eks. - 45°, i forhold til længden af det sammenhængende profil (24, 25).
9. Vindturbine ifølge et af krav 6 til 8, kendetegnet ved, at en (18) af skaldelene om-25 fatter en første kontaktflade placeret ved bagkanten (15) for anlæg mod en anden kontaktflade på den anden skaldel (19), hvori mindst et elastisk element (32) er arrangeret mellem de to kontaktflader for forsegling af kontaktfladerne.
DK201370712A 2013-11-21 2013-11-21 Wind turbine blade with wave shaped trailing edge DK177907B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK201370712A DK177907B1 (en) 2013-11-21 2013-11-21 Wind turbine blade with wave shaped trailing edge
CA2931075A CA2931075A1 (en) 2013-11-21 2014-10-08 Wind turbine blade with wave shaped trailing edge
US15/037,435 US20160290314A1 (en) 2013-11-21 2014-10-08 Wind turbine blade with wave shaped trailing edge
CN201480050854.9A CN105556115B (zh) 2013-11-21 2014-10-08 具有波浪形后缘的风力涡轮机叶片
PCT/DK2014/050320 WO2015074661A1 (en) 2013-11-21 2014-10-08 Wind turbine blade with wave shaped trailing edge
EP14864569.0A EP3071830B1 (en) 2013-11-21 2014-10-08 Wind turbine blade with wave shaped trailing edge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK201370712A DK177907B1 (en) 2013-11-21 2013-11-21 Wind turbine blade with wave shaped trailing edge
DK201370712 2013-11-21

Publications (2)

Publication Number Publication Date
DK201370712A DK201370712A (en) 2013-12-18
DK177907B1 true DK177907B1 (en) 2014-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK201370712A DK177907B1 (en) 2013-11-21 2013-11-21 Wind turbine blade with wave shaped trailing edge

Country Status (6)

Country Link
US (1) US20160290314A1 (da)
EP (1) EP3071830B1 (da)
CN (1) CN105556115B (da)
CA (1) CA2931075A1 (da)
DK (1) DK177907B1 (da)
WO (1) WO2015074661A1 (da)

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US10458389B2 (en) * 2014-07-14 2019-10-29 Lm Wp Patent Holding A/S Profile wedge for attachment of an aeroshell extender piece
US10240576B2 (en) 2015-11-25 2019-03-26 General Electric Company Wind turbine noise reduction with acoustically absorbent serrations
US10519927B2 (en) * 2017-02-20 2019-12-31 General Electric Company Shear web for a wind turbine rotor blade
US10794358B2 (en) 2017-03-17 2020-10-06 Primo Energy, Inc. High torque wind turbine blade, turbine, and associated systems and methods
US9797370B1 (en) * 2017-03-17 2017-10-24 Primo Wind, Inc. High torque wind turbine blade, turbine, and associated systems and methods
CN109114019A (zh) * 2017-06-23 2019-01-01 博格华纳公司 轴向风扇
EP3728838B1 (en) * 2017-12-20 2022-10-05 Vestas Wind Systems A/S Applying wind turbine yaw moment via pitching
US10767623B2 (en) 2018-04-13 2020-09-08 General Electric Company Serrated noise reducer for a wind turbine rotor blade
US10746157B2 (en) 2018-08-31 2020-08-18 General Electric Company Noise reducer for a wind turbine rotor blade having a cambered serration
CN112796931B (zh) * 2020-12-30 2023-06-02 西安利和愽机械制造有限公司 一种风力扰流结构

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US4830315A (en) * 1986-04-30 1989-05-16 United Technologies Corporation Airfoil-shaped body
US4813633A (en) * 1986-12-29 1989-03-21 United Technologies Corporation Airfoil trailing edge
GB8829792D0 (en) * 1988-12-21 1989-07-05 Marconi Co Ltd Noise reduction method
DE102006043462A1 (de) * 2006-09-15 2008-03-27 Deutsches Zentrum für Luft- und Raumfahrt e.V. Aerodynamisches Bauteil mit einer gewellten Hinterkante
GB2462308A (en) * 2008-08-01 2010-02-03 Vestas Wind Sys As Extension portion for wind turbine blade
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Also Published As

Publication number Publication date
CN105556115A (zh) 2016-05-04
DK201370712A (en) 2013-12-18
EP3071830B1 (en) 2018-08-08
EP3071830A4 (en) 2017-04-05
CA2931075A1 (en) 2015-05-28
EP3071830A1 (en) 2016-09-28
US20160290314A1 (en) 2016-10-06
CN105556115B (zh) 2018-04-06
WO2015074661A1 (en) 2015-05-28

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