WO2013113603A1 - Éolienne - Google Patents

Éolienne Download PDF

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Publication number
WO2013113603A1
WO2013113603A1 PCT/EP2013/051287 EP2013051287W WO2013113603A1 WO 2013113603 A1 WO2013113603 A1 WO 2013113603A1 EP 2013051287 W EP2013051287 W EP 2013051287W WO 2013113603 A1 WO2013113603 A1 WO 2013113603A1
Authority
WO
WIPO (PCT)
Prior art keywords
weight
wind turbine
wing
rotor
turbine according
Prior art date
Application number
PCT/EP2013/051287
Other languages
German (de)
English (en)
Inventor
Johannes Goetz
Jens Beck
Original Assignee
Aktiebolaget Skf
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 Aktiebolaget Skf filed Critical Aktiebolaget Skf
Publication of WO2013113603A1 publication Critical patent/WO2013113603A1/fr

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
    • 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
    • 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
    • F05B2260/966—Preventing, counteracting or reducing vibration or noise by correcting static or dynamic imbalance
    • 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 invention relates to a wind turbine comprising a rotatably mounted rotor on which a number of vanes are arranged, each wing extending in a direction radial to the rotor.
  • Such wind turbines are well known in the art.
  • the rotor is mounted relative to a receiving housing mostly by means of a roller bearing, which ensures a low-friction and stable mounting of the rotor and the wings.
  • roller bearings have proven useful for supporting a rotor of a wind turbine, rolling bearings are relatively sensitive when the wind turbine is at rest. In the case of stationary wind turbines, vibrations that occur due to wind forces can cause standstill damage to the raceways of the roller bearings.
  • the solution to this problem by the invention is characterized in that at least one weight is arranged in the interior of at least a number of vanes, wherein means are provided with which the weight, in particular for generating a torque driving the rotor, in the direction of the longitudinal extent of the wing can be moved.
  • Said means for moving the weight may comprise two deflection elements, over which a transmission element, in particular a belt or a chain, runs, to which the weight is fastened, wherein at least one of the deflection elements is driveable.
  • the means for moving the weight comprise a linear guide with a linear motor, the weight being arranged on a linearly movable part of the linear motor on a linear guide.
  • the said means for moving the weight can be driven electrically, hydraulically or pneumatically.
  • weight is moved by means of a hydraulic or pneumatic piston-cylinder system, wherein the piston moves in the wing in the radial direction and carries the weight or is the weight.
  • the means for moving the weight may according to a further alternative embodiment extend in the direction of the longitudinal extension of the wing- have the receiving space in which the weight is arranged, wherein the receiving space is at least partially filled with a bulk material.
  • the bulk material is preferably sand or gravel.
  • the receiving space is preferably formed by a tube located in the interior of the wing.
  • the weight is preferably spherical in this case.
  • the wind turbine preferably has two, three or four wings, wherein in each wing in each case a weight is arranged and wherein all weights preferably have the same mass.
  • the invention thus aims to integrate into the wings of the rotor masses or weights, which within the wing in the radial direction of the rotor, d. H. towards the axis of rotation and away from this again, are arranged movable.
  • Fig. 1 shows schematically a wind turbine in front view, wherein the
  • FIG. 2 in the illustration of FIG. 1, the wind turbine, wherein a first
  • FIG. 5 shows schematically a wing of the wind turbine, in which a weight is slidably mounted by means of a belt drive in the radial direction, and
  • Fig. 6 shows a detail of Fig. 2, namely a wing in which a filled with bulk material tube is arranged, in which there is a weight.
  • a wind turbine 1 is sketched, which is constructed in a conventional manner.
  • a rotor 2 is rotatably mounted with a rolling bearing, not shown.
  • three wings 3, 4 and 5 are arranged, which extend away from the rotor 2 in the radial direction R.
  • each weight 6, 7 and 8 is arranged in each of the wings 3, 4, 5 .
  • the weights 6, 7, 8 can, with means not shown here in the direction of the longitudinal extent of the wing 3, 4, 5, ie, in the radial direction R, to be moved.
  • Each weight 6, 7, 8 has a mass and consequently a weight F GI> F G2 and F G3 , respectively, which act in the direction of gravitational attraction.
  • Fig. 1 the three weights 6, 7, 8 moved into their position in which they are the axis of rotation of the rotor 2 closest. It can be provided that the weights 6, 7, 8 are locked in this position. In this position of the weights is the regular operation of Appendix 1.
  • Fig. 5 is a possible constructive implementation of the means 9 for moving the weights schematically outlined:
  • a transmission element 12 runs in the form of a belt (eg., Timing belt).
  • the weight 6, 7, 8 is attached.
  • the weight 6, 7, 8 thus in the direction R, ie in the longitudinal direction of the Wing 3, 4, 5 are moved back and forth to accomplish the movement of the rotor 2 - as explained above.
  • the drive, d. H. the movement of the weight 6, 7, 8, can be made electrically, hydraulically or pneumatically.
  • FIG. 1 An alternative solution is sketched schematically in FIG. This is where the buoyancy principle comes into play, using the buoyancy of a body that it experiences when placed in a bulk material that is subject to vibration:
  • the weight 6, 7, 8 is formed here spherical. It is located in a tube 14 which extends in the longitudinal direction R of the wing 3, 4, 5 and forms a cylindrical receiving space 13 for the ball 6, 7, 8.
  • the receiving space 14 is almost completely filled with a bulk material, eg. B. filled with sand.
  • vibrations which act at a standstill on the wind turbine 1, also experiences the bulk material said vibration. Due to these vibrations, the small particles of sand infiltrate the spherical buoyant body and convey it upwards in the direction of the force of gravity. As a result, the above-described weight shift, s. Fig. 2 to 4, generated so that a slow rotational movement of the rotor 2 is the result. The energy required for the rotation of the rotor 2 thus comes from the vibration energy of the vibrations registered in the sand.

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

L'invention concerne une éolienne (1) comprenant un rotor rotatif (2), sur lequel est agencé un certain nombre de pales (3, 4, 5). Chaque pale (3, 4, 5) s'étend dans une direction radiale (R) par rapport au rotor (2). L'invention vise à protéger le support du rotor contre tout endommagement lorsque l'éolienne est à l'arrêt. A cet effet, au moins un poids (6, 7, 8) est agencé à l'intérieur d'au moins un certain nombre des pales (3, 4, 5). Des moyens (9) sont prévus, lesquels permettent de déplacer le poids (6, 7, 8) pour produire un couple d'entraînement du rotor (2) dans la direction (R) de l'étendue longitudinale des pales (3, 4, 5).
PCT/EP2013/051287 2012-02-01 2013-01-24 Éolienne WO2013113603A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012201470.5 2012-02-01
DE102012201470A DE102012201470A1 (de) 2012-02-01 2012-02-01 Windkraftanlage

Publications (1)

Publication Number Publication Date
WO2013113603A1 true WO2013113603A1 (fr) 2013-08-08

Family

ID=47630310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/051287 WO2013113603A1 (fr) 2012-02-01 2013-01-24 Éolienne

Country Status (2)

Country Link
DE (1) DE102012201470A1 (fr)
WO (1) WO2013113603A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180045174A1 (en) * 2016-08-10 2018-02-15 General Electric Company Method for balancing segmented wind turbine rotor blades
CN112922781A (zh) * 2021-01-29 2021-06-08 中材科技风电叶片股份有限公司 风力发电机及其叶片质量分布控制系统、方法及设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014222099A1 (de) 2014-10-29 2016-05-04 Aktiebolaget Skf Verfahren zum Betreiben einer Windkraftanlage
DE102015015217A1 (de) * 2015-11-26 2017-06-01 Senvion Gmbh Rotorblatt einer Windenergieanlage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580543A2 (fr) * 2004-03-26 2005-09-28 Hofmann Mess- und Auswuchttechnik GmbH & Co. KG Dispositif d'équilibrage pour compenser le déséquilibre des rotors des installations d'éoliennes
DE102006030167A1 (de) * 2006-06-30 2008-01-03 Robert Bosch Gmbh Rotorblatt für eine Windkraftanlage
US20100021303A1 (en) * 2007-03-30 2010-01-28 Thomas Steiniche Bjertrup Nielsen Wind Turbine Comprising One Or More Oscillation Dampers
WO2012059381A2 (fr) * 2010-11-03 2012-05-10 Siemens Aktiengesellschaft Système et procédé d'amortissement de mouvement d'éolienne

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10141928B4 (de) * 2001-07-20 2004-04-15 Wobben, Aloys, Dipl.-Ing. Verfahren zur Montage einer Windenergieanlage
DE102008023109A1 (de) * 2007-09-14 2009-03-19 Prüftechnik Dieter Busch AG Windenergieanlage und Verfahren zum Betreiben einer Windenergieanlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580543A2 (fr) * 2004-03-26 2005-09-28 Hofmann Mess- und Auswuchttechnik GmbH & Co. KG Dispositif d'équilibrage pour compenser le déséquilibre des rotors des installations d'éoliennes
DE102006030167A1 (de) * 2006-06-30 2008-01-03 Robert Bosch Gmbh Rotorblatt für eine Windkraftanlage
US20100021303A1 (en) * 2007-03-30 2010-01-28 Thomas Steiniche Bjertrup Nielsen Wind Turbine Comprising One Or More Oscillation Dampers
WO2012059381A2 (fr) * 2010-11-03 2012-05-10 Siemens Aktiengesellschaft Système et procédé d'amortissement de mouvement d'éolienne

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180045174A1 (en) * 2016-08-10 2018-02-15 General Electric Company Method for balancing segmented wind turbine rotor blades
US10550823B2 (en) * 2016-08-10 2020-02-04 General Electric Company Method for balancing segmented wind turbine rotor blades
CN112922781A (zh) * 2021-01-29 2021-06-08 中材科技风电叶片股份有限公司 风力发电机及其叶片质量分布控制系统、方法及设备
CN112922781B (zh) * 2021-01-29 2023-02-17 中材科技风电叶片股份有限公司 风力发电机及其叶片质量分布控制系统、方法及设备

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