EP3347592A1 - Procédé d'installation ultérieure d'une unité d'installation ultérieure de dents au niveau d'un bord de fuite d'une pale de rotor d'éolienne et unité de d'installation ultérieure de dents pour une pale de rotor d'éolienne - Google Patents

Procédé d'installation ultérieure d'une unité d'installation ultérieure de dents au niveau d'un bord de fuite d'une pale de rotor d'éolienne et unité de d'installation ultérieure de dents pour une pale de rotor d'éolienne

Info

Publication number
EP3347592A1
EP3347592A1 EP16765951.5A EP16765951A EP3347592A1 EP 3347592 A1 EP3347592 A1 EP 3347592A1 EP 16765951 A EP16765951 A EP 16765951A EP 3347592 A1 EP3347592 A1 EP 3347592A1
Authority
EP
European Patent Office
Prior art keywords
rotor blade
wind turbine
trailing edge
unit
turbine rotor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP16765951.5A
Other languages
German (de)
English (en)
Inventor
Sebastian Engelhardt
Uwe Rahmann
Jörg BAJEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wobben Properties GmbH
Original Assignee
Wobben Properties GmbH
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
Priority claimed from DE102015217331.3A external-priority patent/DE102015217331A1/de
Priority claimed from DE102016101485.0A external-priority patent/DE102016101485A1/de
Application filed by Wobben Properties GmbH filed Critical Wobben Properties GmbH
Publication of EP3347592A1 publication Critical patent/EP3347592A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • F03D80/50—Maintenance or repair
    • 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
    • F05B2230/00—Manufacture
    • F05B2230/80—Repairing, retrofitting or upgrading methods
    • 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
    • F05B2240/301—Cross-section characteristics
    • 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
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • F05B2250/183—Geometry two-dimensional patterned zigzag
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a method for retrofitting at least one rack retrofit unit to a trailing edge of a wind turbine rotor blade and a Zacken retrofit unit for a wind turbine rotor blade.
  • the rotor blades of a wind turbine have a suction side and a pressure side, which converge at a trailing edge of the rotor blade.
  • the pressure difference between the suction side and the pressure side vortices can be generated, which can provide at the trailing edge of the rotor blade for a noise emission and a reduction in performance.
  • To reduce the noise emission and the power reduction spikes may be provided at the trailing edge of the rotor blade.
  • the effectiveness of the noise reduction depends on the geometry of the teeth.
  • the object of the present invention relates to a method for retrofitting a serrated unit at the trailing edge of a rotor blade at existing rotor blades.
  • This object is achieved by a method for retrofitting at least one serrated unit at a trailing edge of a wind turbine rotor blade according to claim 1 and by a serrated retrofit unit according to claim 3.
  • a method is provided for retrofitting a serration unit at a trailing edge of a wind turbine rotor blade. A portion of the trailing edge of the rotor blade is cut out and removed.
  • a tine retrofit unit is glued to the trailing edge of the wind turbine rotor blade in the cut and removed portion.
  • the Zacken retrofit unit has a V-shaped profile and on its first side two attachment arms and on an opposite side a plurality of prongs. The two attachment arms are glued to the trailing edge of the rotor blade to mount the Jag retrofit unit.
  • the tine retrofit unit has a V-shaped profile and, in the region of the attachment arms, lugs or tabs which can be laminated to a material of the trailing edge of the wind turbine rotor blade.
  • the invention further relates to a method for retrofitting a Zacken retrofit unit on a rotor blade trailing edge of a wind turbine rotor blade. For this purpose, a portion of the rotor blade trailing edge is cut out and removed, while the rotor blade is still on a hub of a wind turbine.
  • the rotor blade trailing edge has a hollow chamber which is partially open after removal of the portion of the rotor blade trailing edge.
  • the prongs retrofit unit has a first end with an adhesive tab, a middle portion and a second end with a plurality of prongs.
  • the adhesive flag is introduced into the hollow chamber at the rotor blade trailing edge and glued by means of adhesive.
  • the adhesive may be provided in the hollow chamber.
  • the invention also relates to a Zacken retrofit unit for a wind turbine rotor blade.
  • the retrofit unit has a V-shaped profile, a first side with two attachment arms and an opposite side with a plurality of prongs. The two attachment arms can be glued to the trailing edge of the rotor blade.
  • the retrofit unit has a V-shaped profile and, in the region of the attachment arms, lugs or tabs which can be laminated to a material of the trailing edge of the wind turbine rotor blade.
  • the invention relates to a concept of equipping a serration unit or a serration unit with rotor blades of a wind turbine, in particular if the rotor blades are still attached to the hub of the wind turbine.
  • a section or cutout is cut out of a trailing edge of the rotor blade.
  • This section or cutout is preferably located in the outer third of the rotor blade.
  • a serration retrofit unit is attached at this location.
  • the prongs retrofit unit may optionally be configured as a V-shaped profile having on its first side two attachment arms and on its opposite second side the prongs.
  • the prongs retrofit unit may be adhered to the trailing edge of the rotor blade according to an aspect of the present invention at the point where a portion of the trailing edge of the rotor blade has been removed.
  • a heating unit may be temporarily provided in the region of the first side of the tine trailing edge to cure the adhesive.
  • FIG. 1 shows a schematic representation of a wind energy plant according to the invention
  • FIG. 2A shows a schematic cross section of a trailing edge of a rotor blade of a wind power plant
  • FIG. 2B shows a schematic representation of a rotor blade according to the invention
  • 3A each show schematic representations of a Zacken retrofit and 3B unit according to a first embodiment of the invention.
  • FIG. 4 shows a schematic cross section of a trailing edge of a rotor blade of a wind energy plant according to a second exemplary embodiment of the invention.
  • Fig. 1 shows a schematic representation of a wind turbine according to the invention.
  • the wind energy plant 100 has a tower 102 and a nacelle 104 on the tower 102.
  • On the nacelle 104 is an aerodynamic rotor 106 with three rotor blades. 200 and a spinner 1 10 provided.
  • the rotor blades 200 are each attached to a hub 105.
  • the aerodynamic rotor 106 is set into rotary motion by the wind during operation of the wind turbine and thus also rotates a rotor or rotor of a generator which is coupled directly or indirectly to the aerodynamic rotor 106.
  • the electric generator is disposed in the nacelle 104 and generates electrical energy.
  • the pitch angles of the rotor blades 200 can be changed by pitch motors on the rotor blade roots of the respective rotor blades 200.
  • Fig. 2A shows a schematic cross-sectional view of a trailing edge of a rotor blade according to the invention.
  • the rotor blade 200 has a trailing edge 201, a pressure side 202, a suction side 203 and optionally a hollow chamber 210 in the region of the trailing edge 201.
  • Fig. 2B shows a schematic representation of a rotor blade according to the invention.
  • the rotor blade has a leading edge 204, a trailing edge 201 and a cutout 220 in the region of the trailing edge 201 which has been cut away or cut out.
  • a Zacken retrofit unit is to be placed.
  • the prong retrofit unit 300 has a first end 310 for attachment to the trailing edge 201 of a wind turbine rotor blade 200. Furthermore, the serration retrofit unit 300 has a plurality of serrations 321 at its second end 320.
  • the prongs retrofit unit 300 may be configured as a V-shaped profile having at its first end two ends or arms 31 1, 312, by means of which the prongs retrofit unit 300 at a trailing edge 201 and in particular at the cutout or section 220 of the trailing edge shown in FIG. 2B attached and in particular can be glued.
  • the prongs retrofit unit 300 may have a V-profile 330 and tabs or lugs 31 1a, 312a in the region of the attachment arms 31 1, 312. For curing the adhesive, a heating unit may be temporarily provided in this area.
  • the trailing edge is cut off, for example, in the plane 200a.
  • the cutting can be done for example via a circular saw and a rip fence.
  • the Zacken retrofit unit can be made of thermosets, thermoplastics, elastomers or thermoplastic elastomers (TPE). If a hollow chamber 210 is present, then the retrofitted tine unit 300 can at least partially be glued into the hollow chamber 210.
  • FIG. 4 shows a schematic cross section of a trailing edge of a rotor blade of a wind energy plant according to a second exemplary embodiment of the invention.
  • the trailing edge of the rotor blade 200 according to the second embodiment can essentially correspond to the trailing edge 201 of the rotor blade 200 according to the first exemplary embodiment.
  • the rotor blade 200 thus has at its trailing edge a hollow chamber 210.
  • part of the trailing edge 201 may be cut off or cut out as described in FIG. 2b.
  • the cutting out or cutting can preferably take place according to the invention when the rotor blade is still mounted on the nacelle.
  • the rotor blade 200 can for example be rotated into the 6 o'clock position, so that it is arranged substantially vertically.
  • the hollow chamber 210 may then be at least partially filled with an adhesive 400.
  • the prongs retrofit unit 300 has at its first side or first end an adhesive flag 300a, which optionally tapers in the end region 300c.
  • the opposite second end 320 has a plurality of prongs 321 as in the first embodiment.
  • the tine retrofit unit has a central portion 300d, to which the adhesive vane 300a adjoins. Between the adhesive tab 300a and the central portion 300d, there is a recess 300b on both sides.
  • the adhesive vane 300a When mounting the tine retrofit unit 300, the adhesive vane 300a is inserted into the cavity 210 filled with adhesive 400.
  • adhesive 410 can come to the outside in the region of the recess 300b. This excess adhesive can be removed for example by means of a spatula and / or thus any recesses can be adjusted.
  • the Zacken retrofit units 300 can already be finished finished in the factory.
  • the prongs retrofit unit can be split into multiple segments to improve handling of the segments.

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

L'invention concerne un procédé d'installation ultérieure d'une unité de dents (300) au niveau d'un bord de fuite (201) d'une pale de rotor (200) d'éolienne. Une partie (220) du bord de fuite (201) de la pale de rotor (200) est découpée et enlevée. Cette opération peut s'effectuer lorsque la pale de rotor (200) se trouve encore sur un moyeu de l'éolienne (c'est-à-dire à l'état monté). Une unité d'installation ultérieure de dents (300) est collée dans ou sur le bord de fuite (201) de la pale de rotor (200) d'éolienne dans la partie (220) découpée et enlevée. L'unité d'installation ultérieure de dents (300) présente un profil en V et deux bras de fixation (311, 312) au niveau de son premier côté et une pluralité de dents (321) au niveau du côté opposé. Les deux bras de fixation (311, 312) sont collés au bord de fuite (201) de la pale de rotor (200) pour le montage de l'unité d'installation ultérieure de dents (300).
EP16765951.5A 2015-09-10 2016-09-07 Procédé d'installation ultérieure d'une unité d'installation ultérieure de dents au niveau d'un bord de fuite d'une pale de rotor d'éolienne et unité de d'installation ultérieure de dents pour une pale de rotor d'éolienne Withdrawn EP3347592A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015217331.3A DE102015217331A1 (de) 2015-09-10 2015-09-10 Verfahren zum Nachrüsten einer Zackeneinheit an einer Hinterkante eines Windenergieanlagen-Rotorblattes und Zacken-Nachrüsteinheit für ein Windenergieanlagen-Rotorblatt
DE102016101485.0A DE102016101485A1 (de) 2016-01-28 2016-01-28 Verfahren zum Nachrüsten einer Zacken-Nachrüsteinheit an einer Hinterkante eines Windenergieanlagen-Rotorblattes und Zacken-Nachrüsteinheit für ein Windenergieanlagen-Rotorblatt
PCT/EP2016/071033 WO2017042193A1 (fr) 2015-09-10 2016-09-07 Procédé d'installation ultérieure d'une unité d'installation ultérieure de dents au niveau d'un bord de fuite d'une pale de rotor d'éolienne et unité de d'installation ultérieure de dents pour une pale de rotor d'éolienne

Publications (1)

Publication Number Publication Date
EP3347592A1 true EP3347592A1 (fr) 2018-07-18

Family

ID=56926170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16765951.5A Withdrawn EP3347592A1 (fr) 2015-09-10 2016-09-07 Procédé d'installation ultérieure d'une unité d'installation ultérieure de dents au niveau d'un bord de fuite d'une pale de rotor d'éolienne et unité de d'installation ultérieure de dents pour une pale de rotor d'éolienne

Country Status (3)

Country Link
US (1) US20180266389A1 (fr)
EP (1) EP3347592A1 (fr)
WO (1) WO2017042193A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11927172B2 (en) 2019-04-23 2024-03-12 Vestas Wind Systems A/S Method of forming a wind turbine blade

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7918653B2 (en) * 2007-02-07 2011-04-05 General Electric Company Rotor blade trailing edge assemby and method of use
WO2011157849A2 (fr) * 2010-06-18 2011-12-22 Suzlon Blade Technology B.V. Pale de rotor pour éolienne
DK177533B1 (en) * 2012-05-25 2013-09-08 Envision Energy Denmark Aps Trailing edge tape
TWI537464B (zh) * 2012-12-07 2016-06-11 渥班資產公司 風力渦輪機
DE102013204637A1 (de) * 2013-03-15 2014-09-18 Wobben Properties Gmbh Windenergieanlage
DE102014206345A1 (de) * 2014-04-02 2015-10-08 Wobben Properties Gmbh Verfahren zum Anbringen einer Zackenhinterkante an einer Blatthinterkante eines Rotorblattes

Also Published As

Publication number Publication date
WO2017042193A1 (fr) 2017-03-16
US20180266389A1 (en) 2018-09-20

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