WO1999032789A1 - Pale d'eolienne a amortisseur de vibrations - Google Patents

Pale d'eolienne a amortisseur de vibrations Download PDF

Info

Publication number
WO1999032789A1
WO1999032789A1 PCT/DK1998/000538 DK9800538W WO9932789A1 WO 1999032789 A1 WO1999032789 A1 WO 1999032789A1 DK 9800538 W DK9800538 W DK 9800538W WO 9932789 A1 WO9932789 A1 WO 9932789A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
liquid
containers
damping
container
Prior art date
Application number
PCT/DK1998/000538
Other languages
Danish (da)
English (en)
Inventor
Peter Grabau
Original Assignee
Lm Glasfiber 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 Lm Glasfiber A/S filed Critical Lm Glasfiber A/S
Priority to AU14840/99A priority Critical patent/AU1484099A/en
Priority to DE19882884T priority patent/DE19882884T1/de
Publication of WO1999032789A1 publication Critical patent/WO1999032789A1/fr
Priority to DK200000859A priority patent/DK173885B1/da

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/16—Form or construction for counteracting blade vibration
    • 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
    • F03D7/0296—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
    • 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
    • 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
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/96—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

Definitions

  • the present invention concerns a windmill blade with an arrangement for the damping of vibrations.
  • a tuned vibration damper shall be understood to be an arrangement with a freely movable mass, which in an undamped manner can be accelerated at the beginning of a vibration phase, and is hereby capable of arriving at an opposing, fixed stop face just as the vibration changes to a counter- phase sequence, whereby the reverse vibration is counteracted by the whole of the kinetic energy of the moved mass.
  • Fig. 1 is a plan view of a windmill blade which is provided near its top area with built-in containers for vibra- tion damping in accordance with the invention
  • Fig. 2 is a perspective view of the relevant area, partly in section, and
  • Fig. 3 is a schematic perspective view of just one of the relevant containers .
  • the windmill blade 2 shown in fig. 1 is provided with a number of built-in, transversely-extending liquid containers 4 which more or less fill out the whole of the internal cavity in the blade in the relevant area.
  • the breadth of the blade decreases outwards, and for precisely this reason use is made of several containers which can be of a breadth or transverse length which will be decreasing outwards.
  • these contain- ers will be of a breadth which also decreases outwards.
  • fig. 2 shows the shell construction of the blade with the outer end of an internal main beam 6 and with a number of containers 4 placed opposite the end of this beam.
  • the containers 4 more or less fill out the inner cavity in the blade, whereby outwardly they decrease in both breadth and height.
  • fig. 3 only three containers are shown, but in practice a considerably higher number can be involved, e.g. up towards fifty or more containers.
  • the object will be for all of the containers to- gether to hold an amount of liquid which is so great that by its said swashing it can manifest sufficient kinetic energy to effectively counteract the natural frequency of the blade .
  • a total liquid con- tent of 10-20 1 in the containers will be sufficient to achieve a good vibration damping against the natural vibrations contemplated, and precisely such a content will actually be able to be housed in half-filled containers 4 lying near the tip area of the blade.
  • One of the containers 4 is shown schematically in fig. 3, in a situation where a liquid wave at the natural frequency of the blade has reached all the way forward to the left-hand end of the container. From here, the wave will return to a congruent formation at the opposite end, and hereby influence this almost in a blow-like manner for counteraction of the vibration.
  • each individual container 4 When the frequency of the edgewise natural vibration for the relevant blade is known, together with the G-effect to which the container will be exposed when in operation, each individual container 4 must be filled with liquid for the tuning, e.g. in a vibration machine. When the G-effect is not known, the filling should be effected for tuning to a swash frequency which is the frequency of the natural vibration divided by the square root of the estimated G-effect.
  • the damping containers are preferably built into the outermost end of the blade, e.g. in a pivotal tip part of the blade as indicated in fig. 1, and they can be completely built in because with said embodiment they can be provided as long-life units which do not require any form of maintenance. In areas with possible frost, the filling with liquid should naturally be frost-proofed, e.g. by using glycol .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Selon cette invention, pour amortir les vibrations naturelles sur le chant d'une pale d'éolienne, on a monté, à l'extrémité externe de la pale, une série de contenants positionnés transversalement, et remplis partiellement d'un liquide constituant un système d'amortissement liquide accordé. La fréquence des vibrations naturelles est de quelques Hz en général, la longueur du contenant associé étant nécessairement une grandeur irréaliste, mais par la montée de la force centrifuge qui, avec un rotor de pale à vitesse de rotation constante, est d'une grandeur connue, la vitesse des ondes de liquide amorties est tellement augmentée que cela suffit toutefois pour que les contenants aient une longueur qui permette de les installer dans les pales de dimensions conventionnelles. Une quantité de liquide comprise entre environ 10 et 20 kg sera normalement suffisante pour empêcher l'accumulation de vibrations naturelles nuisibles.
PCT/DK1998/000538 1997-12-09 1998-12-09 Pale d'eolienne a amortisseur de vibrations WO1999032789A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU14840/99A AU1484099A (en) 1997-12-09 1998-12-09 Windmill blade with vibration damper
DE19882884T DE19882884T1 (de) 1997-12-09 1998-12-09 Windradblatt mit Vibrationsdämpfer
DK200000859A DK173885B1 (da) 1997-12-09 2000-06-02 Vindmøllevinge med svingningsdæmper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK1422/97 1997-12-09
DK142297 1997-12-09

Publications (1)

Publication Number Publication Date
WO1999032789A1 true WO1999032789A1 (fr) 1999-07-01

Family

ID=8104670

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1998/000538 WO1999032789A1 (fr) 1997-12-09 1998-12-09 Pale d'eolienne a amortisseur de vibrations

Country Status (4)

Country Link
AU (1) AU1484099A (fr)
DE (1) DE19882884T1 (fr)
DK (1) DK173885B1 (fr)
WO (1) WO1999032789A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006898A1 (fr) * 1998-07-28 2000-02-10 Neg Micon A/S Pale d'eolienne dotee d'un organe d'amortissement des oscillations en forme de u
WO2000077394A1 (fr) * 1999-06-16 2000-12-21 Neg Micon A/S Amortissement des vibrations dans les eoliennes
WO2002073031A1 (fr) * 2001-03-14 2002-09-19 Benny Klemar Pale pour eolienne
WO2002084114A1 (fr) * 2001-04-11 2002-10-24 Lm Glasfiber A/S Rotor d'eolienne a amortisseur de vibration incorpore
WO2003062637A1 (fr) * 2002-01-26 2003-07-31 Nordex Energy Gmbh Pale de rotor pour eolienne pourvue d'un systeme amortisseur
WO2007051465A1 (fr) * 2005-11-03 2007-05-10 Vestas Wind Systems A/S Pale d'eolienne comportant un ou plusieurs amortisseurs d'oscillations
WO2008119352A2 (fr) * 2007-03-30 2008-10-09 Vestas Wind Systems A/S Eolienne comprenant un ou plusieurs amortisseurs de vibrations
WO2009033472A2 (fr) * 2007-09-14 2009-03-19 Prüftechnik Dieter Busch AG Éolienne et procédé de fonctionnement d'une éolienne
US7854589B2 (en) 2006-10-02 2010-12-21 Vestas Wind Systems A/S Wind turbine, a method for damping edgewise oscillations in one or more blades of a wind turbine by changing the blade pitch and use hereof
US8070437B2 (en) 2006-12-08 2011-12-06 Vestas Wind Systems A/S Method for damping edgewise oscillations in one or more blades of a wind turbine, an active stall controlled wind turbine and use hereof
WO2012025211A2 (fr) 2010-08-24 2012-03-01 Fm Besitz Gmbh & Co.Kg Procédé pour réduire les vibrations dans une éolienne
EP2505825A2 (fr) 2011-03-29 2012-10-03 Gamesa Innovation & Technology, S.L. Éolienne dotée d'un dispositif d'amortissement à large bande dans chaque pale
DE102011107466A1 (de) * 2011-07-08 2013-01-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Windkraftanlage
CN103321853A (zh) * 2013-04-12 2013-09-25 太原科技大学 利用复合阻尼结构的风力机叶片抑颤方法
EP2889471A1 (fr) * 2013-12-30 2015-07-01 Siemens Aktiengesellschaft Agencement d'amortisseur
CN105626372A (zh) * 2016-02-02 2016-06-01 南安普敦咨询服务有限公司 一种风力发电机组
EP3677891A1 (fr) * 2019-01-02 2020-07-08 Siemens Gamesa Renewable Energy A/S Système, ensemble de test et procédé pour tester la fatigue d'une pale d'éolienne
CN113027699A (zh) * 2019-12-25 2021-06-25 新疆金风科技股份有限公司 风力发电机组的监测方法、装置和系统
US20240084778A1 (en) * 2021-05-07 2024-03-14 Lm Wind Power A/S Damping system for wind turbine blade edge vibration stabilization
US12043368B2 (en) 2022-03-23 2024-07-23 General Electric Company Rotating airfoil assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006022266A1 (de) * 2005-11-04 2007-05-10 Daubner & Stommel GbR Bau-Werk-Planung (vertretungsberechtigter Gesellschafter: Matthias Stommel, 27777 Ganderkesee) Windenergieanlage
DE102018007953A1 (de) * 2018-10-09 2020-04-09 Senvion Gmbh Rotorblatt einer Windkraftanlage mit einer Teilchendämpfungseinrichtung und ein Herstellungsverfahren dafür

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272169A (en) * 1969-09-20 1972-04-26 Maschf Augsburg Nuernberg Ag Improvements in or relating to the damping of rotary flow-machine blades
WO1995021327A1 (fr) * 1994-02-07 1995-08-10 Lm Glasfiber A/S Pale d'eolienne
DK9500222U3 (da) * 1995-06-07 1996-09-07 Bonus Energy As Vindmøllevinge med midler til svingningsdæmpning

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272169A (en) * 1969-09-20 1972-04-26 Maschf Augsburg Nuernberg Ag Improvements in or relating to the damping of rotary flow-machine blades
WO1995021327A1 (fr) * 1994-02-07 1995-08-10 Lm Glasfiber A/S Pale d'eolienne
DK9500222U3 (da) * 1995-06-07 1996-09-07 Bonus Energy As Vindmøllevinge med midler til svingningsdæmpning

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6626642B1 (en) 1998-07-28 2003-09-30 Neg Micon A/S Wind turbine blade with u-shaped oscillation damping means
WO2000006898A1 (fr) * 1998-07-28 2000-02-10 Neg Micon A/S Pale d'eolienne dotee d'un organe d'amortissement des oscillations en forme de u
WO2000077394A1 (fr) * 1999-06-16 2000-12-21 Neg Micon A/S Amortissement des vibrations dans les eoliennes
US6695588B1 (en) 1999-06-16 2004-02-24 Neg Micon A/S Damping of oscillations in wind turbines
EP1503075A1 (fr) * 1999-06-16 2005-02-02 NEG Micon A/S Amortissement des oscillations des éoliennes
WO2002073031A1 (fr) * 2001-03-14 2002-09-19 Benny Klemar Pale pour eolienne
WO2002084114A1 (fr) * 2001-04-11 2002-10-24 Lm Glasfiber A/S Rotor d'eolienne a amortisseur de vibration incorpore
WO2003062637A1 (fr) * 2002-01-26 2003-07-31 Nordex Energy Gmbh Pale de rotor pour eolienne pourvue d'un systeme amortisseur
CN100424338C (zh) * 2002-01-26 2008-10-08 诺德克斯能源有限公司 具有阻尼装置的用于风力发电设备的转子叶片
US7837439B2 (en) 2005-11-03 2010-11-23 Vestas Wind Systems A/S Wind turbine blade comprising one or more oscillation dampers
WO2007051465A1 (fr) * 2005-11-03 2007-05-10 Vestas Wind Systems A/S Pale d'eolienne comportant un ou plusieurs amortisseurs d'oscillations
US7854589B2 (en) 2006-10-02 2010-12-21 Vestas Wind Systems A/S Wind turbine, a method for damping edgewise oscillations in one or more blades of a wind turbine by changing the blade pitch and use hereof
US8070437B2 (en) 2006-12-08 2011-12-06 Vestas Wind Systems A/S Method for damping edgewise oscillations in one or more blades of a wind turbine, an active stall controlled wind turbine and use hereof
WO2008119352A3 (fr) * 2007-03-30 2009-01-22 Vestas Wind Sys As Eolienne comprenant un ou plusieurs amortisseurs de vibrations
WO2008119352A2 (fr) * 2007-03-30 2008-10-09 Vestas Wind Systems A/S Eolienne comprenant un ou plusieurs amortisseurs de vibrations
WO2009033472A2 (fr) * 2007-09-14 2009-03-19 Prüftechnik Dieter Busch AG Éolienne et procédé de fonctionnement d'une éolienne
WO2009033472A3 (fr) * 2007-09-14 2010-01-07 Prüftechnik Dieter Busch AG Éolienne et procédé de fonctionnement d'une éolienne
WO2012025211A2 (fr) 2010-08-24 2012-03-01 Fm Besitz Gmbh & Co.Kg Procédé pour réduire les vibrations dans une éolienne
EP2505825A2 (fr) 2011-03-29 2012-10-03 Gamesa Innovation & Technology, S.L. Éolienne dotée d'un dispositif d'amortissement à large bande dans chaque pale
CN102734079A (zh) * 2011-03-29 2012-10-17 歌美飒创新技术公司 每个叶片上具有宽波段减震装置的风力涡轮机
DE102011107466B4 (de) * 2011-07-08 2021-07-01 Deutsches Zentrum für Luft- und Raumfahrt e.V. Windkraftanlage
DE102011107466A1 (de) * 2011-07-08 2013-01-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Windkraftanlage
CN103321853A (zh) * 2013-04-12 2013-09-25 太原科技大学 利用复合阻尼结构的风力机叶片抑颤方法
CN103321853B (zh) * 2013-04-12 2016-03-02 太原科技大学 利用复合阻尼结构的风力机叶片抑颤方法
EP2889471A1 (fr) * 2013-12-30 2015-07-01 Siemens Aktiengesellschaft Agencement d'amortisseur
CN105626372A (zh) * 2016-02-02 2016-06-01 南安普敦咨询服务有限公司 一种风力发电机组
EP3677891A1 (fr) * 2019-01-02 2020-07-08 Siemens Gamesa Renewable Energy A/S Système, ensemble de test et procédé pour tester la fatigue d'une pale d'éolienne
US11255744B2 (en) 2019-01-02 2022-02-22 Siemens Gamesa Renewable Energy A/S System, testing assembly and method for fatigue testing a wind turbine blade
CN113027699A (zh) * 2019-12-25 2021-06-25 新疆金风科技股份有限公司 风力发电机组的监测方法、装置和系统
CN113027699B (zh) * 2019-12-25 2022-07-12 新疆金风科技股份有限公司 风力发电机组的监测方法、装置和系统
US20240084778A1 (en) * 2021-05-07 2024-03-14 Lm Wind Power A/S Damping system for wind turbine blade edge vibration stabilization
US12043368B2 (en) 2022-03-23 2024-07-23 General Electric Company Rotating airfoil assembly

Also Published As

Publication number Publication date
DK200000859A (da) 2000-06-02
AU1484099A (en) 1999-07-12
DK173885B1 (da) 2002-01-28
DE19882884T1 (de) 2001-10-04

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