IN2012DE00736A - - Google Patents

Info

Publication number
IN2012DE00736A
IN2012DE00736A IN736DE2012A IN2012DE00736A IN 2012DE00736 A IN2012DE00736 A IN 2012DE00736A IN 736DE2012 A IN736DE2012 A IN 736DE2012A IN 2012DE00736 A IN2012DE00736 A IN 2012DE00736A
Authority
IN
India
Prior art keywords
blade
resonance frequency
main resonance
frequencies
amplitude
Prior art date
Application number
Inventor
Prieto Javier Caso
Moreno Alejandro Saez
Andujar Juan Carlos Garcia
Ezpelta Aitor Sancet
Diez Jesus Lopez
Original Assignee
Gamesa Innovation & Tech Sl
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 Gamesa Innovation & Tech Sl filed Critical Gamesa Innovation & Tech Sl
Publication of IN2012DE00736A publication Critical patent/IN2012DE00736A/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
    • 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
    • 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
    • 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)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Wind turbine comprising one or more blades, incorporating in each blade a damping device comprising a first damping element tuned at the main resonance frequency of the blade Ωo and K additional damping elements tuned at frequencies Ω1, Ω2, ... Ωk so that in the event of blade vibrations its amplitude A is reduced in a percentage Y of the amplitude Ao at the main resonance frequency of the blade Ωo in a band extended above and below the main resonance frequency of the blade Ωo in a percentage X of Ωo, said frequencies Ω1, Ω2, ... Ωk being comprised within said band. Fig. 3
IN736DE2012 2011-03-29 2012-03-14 IN2012DE00736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201100358A ES2398005B1 (en) 2011-03-29 2011-03-29 WIND TURBINE WITH A BROADBAND DAMPER DEVICE ON EACH BLADE

Publications (1)

Publication Number Publication Date
IN2012DE00736A true IN2012DE00736A (en) 2015-08-21

Family

ID=45877951

Family Applications (1)

Application Number Title Priority Date Filing Date
IN736DE2012 IN2012DE00736A (en) 2011-03-29 2012-03-14

Country Status (6)

Country Link
US (1) US20120251318A1 (en)
EP (1) EP2505825A3 (en)
CN (1) CN102734079B (en)
BR (1) BR102012007071B1 (en)
ES (1) ES2398005B1 (en)
IN (1) IN2012DE00736A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3591221A1 (en) * 2018-07-03 2020-01-08 Siemens Gamesa Renewable Energy A/S Electrical resonance change in a wind turbine
EP3795824A1 (en) 2019-09-18 2021-03-24 General Electric Company System and method for mitigating vortex-shedding vibrations or stall-induced vibrations on a rotor blade of a wind turbine during standstill
US11409249B1 (en) * 2020-01-30 2022-08-09 The Mathworks, Inc. Simulating transverse motion response of a flexible rotor based on a parameter dependent eigenmodes
GB202010416D0 (en) 2020-07-07 2020-08-19 General Electric Renovables Espana Sl Rotor blade assembly for mitigating stall induced vibrations

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK172039B1 (en) 1994-02-07 1997-09-22 Bonus Energy As Wind turbine blade and method for reducing vibrations in one
AU1484099A (en) 1997-12-09 1999-07-12 Lm Glasfiber A/S Windmill blade with vibration damper
WO1999043955A1 (en) * 1998-02-24 1999-09-02 Lm Glasfiber A/S Wind turbine blade
WO2000006898A1 (en) 1998-07-28 2000-02-10 Neg Micon A/S Wind turbine blade with u-shaped oscillation damping means
AUPQ892800A0 (en) 2000-07-21 2000-08-17 3D Displays Pty Ltd A bubbling display for a dispensing font
DK174437B1 (en) * 2001-04-11 2003-03-03 Lm Glasfiber As Wind turbine blade with vibration damper
US7309930B2 (en) * 2004-09-30 2007-12-18 General Electric Company Vibration damping system and method for variable speed wind turbines
EP1754886B1 (en) * 2005-08-17 2012-10-10 General Electric Company Rotor blade for a wind energy turbine
CN101297112B (en) * 2005-11-03 2011-10-05 维斯塔斯风力系统有限公司 Wind turbine blade including one or more vibration dampers
AU2007341055A1 (en) * 2006-12-28 2008-07-10 Clipper Windpower, Inc. Wind turbine damping of tower resonant motion and symmetric blade motion using estimation methods
WO2008119352A2 (en) * 2007-03-30 2008-10-09 Vestas Wind Systems A/S A wind turbine comprising one or more oscillation dampers
EP2123906A1 (en) * 2008-05-21 2009-11-25 Siemens Aktiengesellschaft Method and apparatus for damping tower oscillation in a wind turbine
GB2466649B (en) * 2008-12-30 2014-01-29 Hywind As Blade pitch control in a wind turbine installation
US7988416B2 (en) * 2009-03-18 2011-08-02 Vestas Wind Systems A/S Wind turbine blade with damping element

Also Published As

Publication number Publication date
BR102012007071A2 (en) 2013-05-21
CN102734079A (en) 2012-10-17
EP2505825A3 (en) 2014-07-23
ES2398005B1 (en) 2014-09-05
CN102734079B (en) 2016-01-13
ES2398005R1 (en) 2013-11-08
EP2505825A2 (en) 2012-10-03
BR102012007071B1 (en) 2021-10-05
ES2398005A2 (en) 2013-03-13
US20120251318A1 (en) 2012-10-04

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