WO2010022739A3 - A wind turbine comprising a rotor with vibration damping properties - Google Patents

A wind turbine comprising a rotor with vibration damping properties Download PDF

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Publication number
WO2010022739A3
WO2010022739A3 PCT/DK2009/050220 DK2009050220W WO2010022739A3 WO 2010022739 A3 WO2010022739 A3 WO 2010022739A3 DK 2009050220 W DK2009050220 W DK 2009050220W WO 2010022739 A3 WO2010022739 A3 WO 2010022739A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
wind turbine
rotor blades
vibration damping
damping properties
Prior art date
Application number
PCT/DK2009/050220
Other languages
French (fr)
Other versions
WO2010022739A2 (en
Inventor
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 WO2010022739A2 publication Critical patent/WO2010022739A2/en
Publication of WO2010022739A3 publication Critical patent/WO2010022739A3/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
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • 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
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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
    • F05B2280/50—Intrinsic material properties or characteristics
    • F05B2280/5001—Elasticity
    • 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
    • F05B2280/70—Treatments or modification of materials
    • F05B2280/702—Reinforcements
    • 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)
  • Wind Motors (AREA)

Abstract

This invention relates to a wind turbine generator comprising a rotor having at least two rotor blades, said rotor being arranged to be able to rotate around a substantially horizontal main shaft, said rotor blades extending radially outwards from the main shaft to which they are attached via a rotorhub, wherein one of the rotor blades is structurally different from the other one or more rotor blades. The invention further relates to use of rotor having two or more rotor blades, wherein at least one rotor blade is structurally different from the other rotor blade(s) for damping vibrations in a wind turbine generator during operation.
PCT/DK2009/050220 2008-08-29 2009-08-28 A wind turbine generator comprising a rotor with vibration damping properties WO2010022739A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA200801205 2008-08-29
DKPA200801205 2008-08-29
US9384908P 2008-09-03 2008-09-03
US61/093,849 2008-09-03

Publications (2)

Publication Number Publication Date
WO2010022739A2 WO2010022739A2 (en) 2010-03-04
WO2010022739A3 true WO2010022739A3 (en) 2010-12-02

Family

ID=41721997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2009/050220 WO2010022739A2 (en) 2008-08-29 2009-08-28 A wind turbine generator comprising a rotor with vibration damping properties

Country Status (1)

Country Link
WO (1) WO2010022739A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015158346A1 (en) * 2014-04-14 2015-10-22 Envision Energy (Denmark) Aps Asymmetric blade damper
GB201508004D0 (en) * 2015-05-11 2015-06-24 Blade Dynamics Ltd A wind turbine blade

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716326A1 (en) * 1987-05-15 1988-12-01 Schempp Hirth Gmbh & Co Kg Propeller
NL1014719C2 (en) * 2000-03-22 2001-09-25 Aerpac Holding B V Wind turbine, has asymmetrically arranged turbine vanes to reduced stall induced vibrations
US20050249586A1 (en) * 2004-04-20 2005-11-10 Snecma Moteurs Method for introducing a deliberate mismatch on a turbomachine bladed wheel, bladed wheel with a deliberate mismatch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716326A1 (en) * 1987-05-15 1988-12-01 Schempp Hirth Gmbh & Co Kg Propeller
NL1014719C2 (en) * 2000-03-22 2001-09-25 Aerpac Holding B V Wind turbine, has asymmetrically arranged turbine vanes to reduced stall induced vibrations
US20050249586A1 (en) * 2004-04-20 2005-11-10 Snecma Moteurs Method for introducing a deliberate mismatch on a turbomachine bladed wheel, bladed wheel with a deliberate mismatch

Also Published As

Publication number Publication date
WO2010022739A2 (en) 2010-03-04

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