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IN2014DN03261A - - Google Patents

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Publication number
IN2014DN03261A
IN2014DN03261A IN3261DEN2014A IN2014DN03261A IN 2014DN03261 A IN2014DN03261 A IN 2014DN03261A IN 3261DEN2014 A IN3261DEN2014 A IN 3261DEN2014A IN 2014DN03261 A IN2014DN03261 A IN 2014DN03261A
Authority
IN
India
Prior art keywords
blade
root
length
along
tip
Prior art date
Application number
Inventor
Lasse Gilling
Henrik Fredslund Hansen
Scott J Johnson
John M Obrecht
Ryan A Sievers
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47594715&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN2014DN03261(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of IN2014DN03261A publication Critical patent/IN2014DN03261A/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
    • 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
    • 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
    • F05B2200/00—Mathematical features
    • F05B2200/20—Special functions
    • F05B2200/22—Power
    • F05B2200/222—Cubic power
    • 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
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/221—Rotors for wind turbines with horizontal axis
    • 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
    • F05B2250/70—Shape
    • F05B2250/71—Shape curved
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

A swept wind turbine blade (20) includes a blade body (24) extending along a length between a root (26) and a tip (28) of the blade (20). A pitch axis (36) extends through the root (26) of the blade (20). A reference line (48) defines a deviation from the pitch axis (36) and corresponds to a swept shape of the blade (20) along its length. The reference line (48) has a zero sweep at the root (26) a zero slope at the root (26) and a positive curvature (66) along a segment within 25% of the length from the root (26) to the tip (28) of the blade (20).
IN3261DEN2014 2012-01-25 2013-01-15 IN2014DN03261A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/357,661 US9920741B2 (en) 2012-01-25 2012-01-25 Wind turbine blade having a geometric sweep
PCT/EP2013/050663 WO2013110527A1 (en) 2012-01-25 2013-01-15 Wind turbine blade having a geometric sweep

Publications (1)

Publication Number Publication Date
IN2014DN03261A true IN2014DN03261A (en) 2015-05-22

Family

ID=47594715

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3261DEN2014 IN2014DN03261A (en) 2012-01-25 2013-01-15

Country Status (10)

Country Link
US (1) US9920741B2 (en)
EP (1) EP2761170B1 (en)
JP (1) JP6053825B2 (en)
KR (1) KR20140124797A (en)
CN (1) CN104066976B (en)
BR (1) BR112014017906A8 (en)
CA (1) CA2862327A1 (en)
DK (1) DK2761170T3 (en)
IN (1) IN2014DN03261A (en)
WO (1) WO2013110527A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9920741B2 (en) 2012-01-25 2018-03-20 Siemens Aktiengesellschaft Wind turbine blade having a geometric sweep
EP3077661B1 (en) * 2013-12-04 2022-09-28 Vestas Wind Systems A/S Pre-bent wind turbine blade
EP3130799A4 (en) * 2014-03-28 2017-04-12 The Chugoku Electric Power Co., Inc. Wind turbine blade and wind power generator provided with same
FR3062886B1 (en) * 2017-02-14 2021-04-23 Univ Paris Diderot Paris 7 DEFORMABLE BLADES FOR OPTIMIZING ROTOR PERFORMANCE. APPLICATION TO WIND ENERGY AND AERONAUTICS
CN114320732B (en) * 2020-09-30 2023-12-15 江苏金风科技有限公司 Blade, design method and wind generating set
CN113719408A (en) * 2021-09-23 2021-11-30 中国华能集团清洁能源技术研究院有限公司 Sweepback blade of wind turbine generator and wind turbine generator
CN118273864A (en) * 2022-12-30 2024-07-02 浙江金风科技有限公司 Forward-swept wind turbine blade and design method, manufacturing method and wind turbine generator set
CN119830756B (en) * 2024-12-31 2025-10-10 华能广东汕头海上风电有限责任公司 Blade design method and device, storage medium, electronic device, and computer program product

Family Cites Families (28)

* Cited by examiner, † Cited by third party
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US5584661A (en) 1994-05-02 1996-12-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Forward sweep, low noise rotor blade
DE19738278A1 (en) 1997-09-02 1999-03-04 Felix Hafner Adaptive rotor for wind power plants
DE19963086C1 (en) 1999-12-24 2001-06-28 Aloys Wobben Rotor blade for wind-turbine energy plant divided into 2 sections with different blade tip to wind velocity ratios
DE10300284A1 (en) 2003-01-02 2004-07-15 Aloys Wobben Turbine rotor blade for wind-powered energy plant has tip region curved or angled in direction of rotor blade trailing edge
ES2440218T3 (en) * 2003-01-02 2014-01-28 Wobben Properties Gmbh Wind turbine rotor blade with reduced noise emission
US7118338B2 (en) 2004-06-30 2006-10-10 General Electric Company Methods and apparatus for twist bend coupled (TCB) wind turbine blades
US7344360B2 (en) 2004-09-29 2008-03-18 General Electric Company Wind turbine rotor blade with in-plane sweep and devices using same, and methods for making same
US7153090B2 (en) 2004-12-17 2006-12-26 General Electric Company System and method for passive load attenuation in a wind turbine
US7476086B2 (en) 2005-04-07 2009-01-13 General Electric Company Tip cambered swept blade
US7690895B2 (en) 2005-07-29 2010-04-06 General Electric Company Multi-piece passive load reducing blades and wind turbines using same
US7802968B2 (en) 2005-07-29 2010-09-28 General Electric Company Methods and apparatus for reducing load in a rotor blade
DE102006053712A1 (en) 2006-11-15 2008-05-21 Nordex Energy Gmbh Rotor blade and wind turbine
WO2008104629A1 (en) 2007-02-28 2008-09-04 Gamesa Innovation & Technology, S.L. Wind generator blade
EP2129908B1 (en) 2007-03-20 2010-12-01 Vestas Wind Systems A/S Wind turbine blades with vortex generators
US20100143138A1 (en) 2008-12-08 2010-06-10 Russel Hugh Marvin Axial flow wind turbine
US8418967B2 (en) 2008-02-21 2013-04-16 Cornerstone Research Group, Inc. Passive adaptive structures
US8215906B2 (en) 2008-02-29 2012-07-10 General Electric Company Variable tip speed ratio tracking control for wind turbines
US8061996B2 (en) 2008-05-30 2011-11-22 General Electric Company Wind turbine blade planforms with twisted and tapered tips
US20090324416A1 (en) * 2008-06-30 2009-12-31 Ge Wind Energy Gmbh Wind turbine blades with multiple curvatures
US8075278B2 (en) 2009-05-21 2011-12-13 Zuteck Michael D Shell structure of wind turbine blade having regions of low shear modulus
US20110052407A1 (en) 2009-08-25 2011-03-03 Zuteck Michael D Swept blades utilizing asymmetric double biased fabrics
US20110052404A1 (en) 2009-08-25 2011-03-03 Zuteck Michael D Swept blades with enhanced twist response
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US7946826B1 (en) * 2010-07-16 2011-05-24 General Electric Company Wind turbine rotor blade with a suction side winglet
US7997875B2 (en) 2010-11-16 2011-08-16 General Electric Company Winglet for wind turbine rotor blade
DE102011050777A1 (en) 2011-05-31 2012-12-06 Dewind Europe Gmbh Rotor and rotor blade for a wind turbine
US9920741B2 (en) 2012-01-25 2018-03-20 Siemens Aktiengesellschaft Wind turbine blade having a geometric sweep

Also Published As

Publication number Publication date
CA2862327A1 (en) 2013-08-01
US20130189116A1 (en) 2013-07-25
DK2761170T3 (en) 2017-05-15
BR112014017906A8 (en) 2017-07-11
KR20140124797A (en) 2014-10-27
EP2761170A1 (en) 2014-08-06
JP6053825B2 (en) 2016-12-27
CN104066976A (en) 2014-09-24
EP2761170B1 (en) 2017-03-08
WO2013110527A1 (en) 2013-08-01
BR112014017906A2 (en) 2017-06-20
US9920741B2 (en) 2018-03-20
CN104066976B (en) 2018-01-19
JP2015505008A (en) 2015-02-16

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