DK2998571T3 - Opdriftpåvirkningsindretning til en rotorvinge af en vindmølle - Google Patents

Opdriftpåvirkningsindretning til en rotorvinge af en vindmølle Download PDF

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Publication number
DK2998571T3
DK2998571T3 DK14185540.3T DK14185540T DK2998571T3 DK 2998571 T3 DK2998571 T3 DK 2998571T3 DK 14185540 T DK14185540 T DK 14185540T DK 2998571 T3 DK2998571 T3 DK 2998571T3
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DK
Denmark
Prior art keywords
buoyancy
edge section
modifier
rotor blade
rear edge
Prior art date
Application number
DK14185540.3T
Other languages
English (en)
Inventor
Alejandro Gomez Gonzalez
Jesper Monrad Laursen
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of DK2998571T3 publication Critical patent/DK2998571T3/da

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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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

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  • 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)

Claims (10)

1. Rotorvinge (20) af en vindmølle (10) med en opdriftmodificeringsindretning (30), hvor - rotorvingen (20) omfatter en trykside (251), en sugeside (252), en forreste kantsektion (24) med en forkant (241) og en bagerste kantsektion (23) med en bagkant (231), - opdriftmodificeringsindretningen (30) er en del af den bagerste kantsektion (23), og - opdriftmodificeringsindretningen (30) er udformet således, at ved en forudbestemt belastning (31,32) af den bagerste kantsektion (23) åbner en luftkanal (46) en strømningsbane fra tryksiden (251) til sugesiden (252) og omvendt i den bagerste kantsektion (23), - således at luftstrøm (45), der strømmer fra den forreste kantsektion (24) til den bagerste kantsektion (23) mindst delvist afbøjes af den åbne luftkanal (46), hvilket medfører en modificering af opdriften af rotorvingen (20), kendetegnet ved, at - opdriftmodificeringsindretningen (30) er fast forbundet til den bagerste kantsektion (23), og - opdriftmodificeringsindretningen (30) er fleksibel, således at den kan afbøjes elastisk til passiv åbning af luftkanalen (46) ved en forudbestemt belastning (31,32) af den bagerste kantsektion (23).
2. Rotorvinge (20) ifølge krav 1, hvor - den bagerste kantsektion (23) omfatter en forlængelsesdel (39), som er adskilt fra en resterende bagerste kantsektion, - forlængelsesdelen (39) er fastgjort til den resterende bagerste kantsektion, og - opdriftmodificeringsindretningen (30) er en del af forlængelsesdelen (39).
3. Rotorvinge (20) ifølge krav 1, hvor den bagerste kantsektion (23) med opdriftmodificeringsindretningen (30) er bygget som et enkelt stykke.
4. Rotorvinge (20) ifølge et af de foregående krav, hvor rotorvingen (20) omfatter en flerhed af opdriftmodificeringsindretninger (30), som er anbragt i en spanwise retning langs den bagerste kantsektion (23), således at opdriften af rotorvingen (20) kan modificeres lokalt med hensyn til en spanwise position langs rotorvingen (20).
5. Rotorvinge (20) ifølge et af de foregående krav, hvor, ved en første forudbestemt belastning (31), en kraft fra sugesiden (252) anvendes på den bagerste kantsektion (23) af rotorvingen (20), således at opdriftmodificeringsindretningen (30) åbner sig mod tryksiden (251) af rotorvingen (20).
6. Rotorvinge (20) ifølge et af kravene 1 til 4, hvor, ved en anden forudbestemt belastning (32), en kraft fra tryksiden (251) anvendes på den bagerste kantsektion (23) af rotorvingen (20), således at opdriftmodificeringsindretningen (30) åbner sig mod sugesiden (252) af rotorvingen (20).
7. Rotorvinge (20) ifølge et af de foregående krav, hvor opdriftmodificeringsindretningen (30) omfatter en mekanisme - som forhindrer, at opdriftmodificeringsindretningen (30) åbner sig imod tryksiden (251), således at opdriftmodificeringsindretningen (30) kun kan åbne sig mod sugesiden (252), eller - som forhindrer, at opdriftmodificeringsindretningen (30) åbner sig mod sugesiden (252), således at opdriftmodificeringsindretningen (30) kun kan åbne sig mod tryksiden (251).
8. Rotorvinge (20) ifølge krav 7, hvor mekanismen med selektivt at blokere åbningen af luftkanalen (46) mod enten tryksiden (251) eller sugesiden (252) effektueres ved hjælp af en rand af opdriftmodificeringsindretningen (33), som mindst delvist overlapper med en rand af luftkanalen (34) i den lukkede tilstand af luftkanalen (46).
9. Rotorvinge (20) ifølge et af de foregående krav, hvor - opdriftmodificeringsindretningen (30) omfatter en forkantindretningsdel (35), som vender mod den forreste kantsektion (24) af rotorvingen (20), og en bagkantindretningsdel (36), som er over for forkantindretningsdelen (35), og - opdriftmodificeringsindretningen (30) åbner sig ved enten forkantindretningsdelen (35) eller bagkantindretningsdelen (36).
10. Fremgangsmåde til modificering af opdriften af en rotorvinge (20) af en vindmølle (10), hvor rotorvingen (20) er udformet ifølge et af de følgende krav, og - den fleksible opdriftmodificeringsindretning ved den forudbestemte belastning (31, 32) af den bagerste kantsektion (23) afbøjes elastisk, hvorved den passivt åbner luftkanalen, og - luftstrømmen (45), der strømmer fra den forreste kantsektion (24) til den bagerste kantsektion (23) mindst delvist afbøjes af den åbne luftkanal (46), hvilket medfører en modificering af opdriften af rotorvingen (20).
DK14185540.3T 2014-09-19 2014-09-19 Opdriftpåvirkningsindretning til en rotorvinge af en vindmølle DK2998571T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14185540.3A EP2998571B1 (en) 2014-09-19 2014-09-19 Lift influencing device for a rotor blade of a wind turbine

Publications (1)

Publication Number Publication Date
DK2998571T3 true DK2998571T3 (da) 2017-12-18

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US (1) US10408192B2 (da)
EP (1) EP2998571B1 (da)
CN (1) CN105443313B (da)
DK (1) DK2998571T3 (da)

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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

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Also Published As

Publication number Publication date
US10408192B2 (en) 2019-09-10
CN105443313B (zh) 2019-12-03
EP2998571A1 (en) 2016-03-23
EP2998571B1 (en) 2017-11-01
CN105443313A (zh) 2016-03-30
US20160084223A1 (en) 2016-03-24

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