WO2010048964A2 - Aérogénérateur comprenant un châssis conçu pour être fixé à un support par un système de guidage - Google Patents

Aérogénérateur comprenant un châssis conçu pour être fixé à un support par un système de guidage Download PDF

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Publication number
WO2010048964A2
WO2010048964A2 PCT/DK2009/050286 DK2009050286W WO2010048964A2 WO 2010048964 A2 WO2010048964 A2 WO 2010048964A2 DK 2009050286 W DK2009050286 W DK 2009050286W WO 2010048964 A2 WO2010048964 A2 WO 2010048964A2
Authority
WO
WIPO (PCT)
Prior art keywords
frame
power converter
support
connecting means
wind turbine
Prior art date
Application number
PCT/DK2009/050286
Other languages
English (en)
Other versions
WO2010048964A3 (fr
Inventor
Allan Laursen Molbech
Original Assignee
Vestas Wind Systems 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 Vestas Wind Systems A/S filed Critical Vestas Wind Systems A/S
Publication of WO2010048964A2 publication Critical patent/WO2010048964A2/fr
Publication of WO2010048964A3 publication Critical patent/WO2010048964A3/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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F05B2230/60—Assembly methods
    • F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
    • 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
    • F05B2230/60—Assembly methods
    • F05B2230/61—Assembly methods using auxiliary equipment for lifting or holding
    • 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
    • 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
    • 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
    • Y02E10/728—Onshore wind turbines

Definitions

  • a wind turbine generator comprising a frame adapted to be attached to a support by a guiding system
  • This invention relates to a wind turbine generator comprising a nacell including at least one power converter said power converter comprising a frame adapted to be attached to a support by a guiding system.
  • the inventic also relates to a method for replacing a power converter having a frame fastened to a support in a wind turbine generator nacelle.
  • a wind turbine generator or plant comprises a tower carrying a nacelle.
  • the nacelle is connected with the rotor via an axis which connected to a gearbox, generator, and optionally other parts located in the nacelle.
  • the life span of a wind turbine plant generally exceeds twenty year and, although, frequent maintenance is carried out, parts of the plant may b( worn out during the life span and it may be necessary to replace one or mor of those parts.
  • the crane may be an internal crane located within the nacelle or the crane may be an external crane. Whe larger and heavier parts have to be replaced, the normal procedure is to attach the part to a crane and then remove the nuts and bolts that fasten the part to a support structure.
  • the part is attached to the crane with a certain pretension in its cable ensuring that the crane carries and controls the part once the nuts and bolts are removed.
  • the larger part in question may e.g. be a generator, a gearbo> or a transformer.
  • Such parts may weight several tons and may constitute a potential risk to the fitters present in the nacelle during the replacement operation.
  • the part may swing or tilt in the cables of the crane e.g. due to a movement of the nacelle or due to a sudden blast of wind. This is also the case if the pretension in the cables is incorrect or unbalanced. In the latter case the part will then make a sudden more or less uncontrolled jump.
  • the swinging, tilting or jumping of the part may in unfortunate circumstances cause damage to the fitters or surrounding components, and the damage may be severe.
  • the invention in a first aspect, relates to a wind turbine generator comprising a nacelle including at least one power converter, said power converter comprising a frame adapted to be attached to a support by a guiding system, wherein said guiding system comprises a first and second connecting means allowing movement between the frame and the support in a first direction and preventing movement between the frame and the support in a second direction essentially perpendicular to said first direction.
  • the guiding system makes it possible to replace a power converter in a safer way as the possible options for movement of the power converter when its frame is loosened from the support is restricted to one direction only. Thus, tilting and other undesired movements of the power converter can be avoided.
  • the support may be a metal structure e.g. a grid forming the floor of the nacelle and having sufficient strength to support the power converter when the power converter is fastened to the support, i.e. when the frame of the power converter is fastened to the support.
  • the frame carries the power converter and it may have several designs, e.g. a pair of metal beams attached to the power converter.
  • the frame may be attached to the bottom, the sides or the top of the power converter.
  • the power converter may e.g. be a gearbox, a generator or a transformer, which all are examples of power converters with a considerable weight, and they may cause serious damage in case of undesired and unexpected movement during replacement in a nacelle.
  • the first direction is a vertical direction. This embodiment is advantageously as only a crane can move the power converter in vertical direction and gravity will serve to keep the power converter at rest when the crane is not in operation.
  • the frame or the power converter has mountings to be fixed to a crane.
  • the first connecting means are located on the frame, and the second connecting means are located on the support. This is an embodiment that facilitates the fastening between the frame and the support and also serves to ensure a safer connection between the frame and the support.
  • the first connecting means comprises at least one gripping means to engage with at least one recess and the second connecting means comprises a protrusion with at least one recess. Consequently, the gripping means of the first connecting means may engage with the recess of the second connection means and, thereby, serve to connect the frame and the support in a safe connection.
  • the first and the second connection means may form a dovetail connection.
  • the at least one recess in the protrusion can be orientated in the vertical direction and, thereby, the recess determines the direction of the first direction to be a vertical direction.
  • the first connecting means comprises at least one hook and the second connecting means comprises receiving means for receiving the at least one hook located on the first connecting means.
  • the term hook in this context is to be interpreted in a broad sense as the hook may simply be in the form of an U-profile or alternatively a L-profile or the hook may have a more sophisticated design as long as it can engage with the receiving means on the second connecting means.
  • the receiving means may e.g. be a recess or a hole in the second connecting means.
  • the invention also comprises an embodiment where the support comprises a protrusion adapted to support the frame.
  • the first and the second connecting means may hold the frame with the power converter connected to the support with a stable connection, in some situations it is desirable with a further support of the frame, in particular at the bottom part of the frame. This protrusion supporting the frame at the bottom part may reduce the risk that the power converter suddenly tilts, although it is connected to the support with the first and second connecting means.
  • the guiding system comprises a third connecting means adapted to connect the frame to the support and prevent movement of the frame in relation the support.
  • the first and the second connecting means can be considered to provide a temporarily attachment of the power converter to the support, and provides an excellent solution for the limited period of replacing the power converter.
  • the third connecting means can provide an attachment based on welding, rivets, screws, or bolts and nuts.
  • the third connecting means comprises bolts and nuts.
  • the invention also relates to a method for replacing a power converter having a frame fastened to a support in a wind turbine generator nacelle.
  • the method comprises the step of: removing the fastening means fastening the frame of the power converter to be replaced to the support; lifting the power converter free from a guiding system; placing a replacement power converter to engage with the guiding system; fastening the frame of the replacement power converter to the support with fastening means; wherein the guiding system allows a movement of the power converter in first direction and prevents movement in a second direction substantially perpendicular to the first direction when the power converter is not fastened with fastening means.
  • the method provides a safer way of replacing a power converter, as the method restricts the possible and desirable movements of a power converter during replacement.
  • the method allows only movement of the power converter in a first direction and, thereby, undesired movement is avoided.
  • direction in this context means a longitudinal or linear direction where the movement is possible in two directions, i.e. back and forth.
  • a crane may control the movement in the first direction and, thus, in an embodiment the method comprises the further step of attaching the frame and the power converter to a crane.
  • the first direction is a vertical direction. In this manner the embodiment ensures an easy and safe replacement of the power converter.
  • this embodiment has the advantage that the gravity helps to keep the power converter at rest, when it not is moved by a crane.
  • fastening means may be screws, welds or the like it is preferred the fastening means are bolts and nuts, as these easy can be loosened and fastened.
  • the guiding system comprises a receiving member having one or more recesses located on the support and at least one hooked member located on the frame, wherein the at least one hooked member is adapted to engage with the one or more recesses on the receiving member.
  • the guiding system may provide a dovetail-like connection and, thus, the guiding system is capable of connecting the support and the frame and keeps them in a substantially fixed position in relation to each other.
  • the support comprises a protrusion that abuts and further supports the frame.
  • the protrusion is placed in a position to abut the frame at the bottom of the frame in which position the protrusion provides a good support that in cooperation with the guiding system can prevent the frame from tilting.
  • Fig 1 illustrates an embodiment of the guiding system according to the invention
  • Fig 2 illustrates the embodiment of Fig 1 seen from above
  • FIG. 3 illustrates engagement of the connecting means seen in Fig 1 and 2;
  • Fig 4 illustrates an alternative embodiment of the guiding system according to the invention
  • Fig 5 shows an embodiment of a protrusion to support a frame from tilting.
  • Fig 1 illustrates an embodiment of the guiding system 1 according to the invention.
  • the guiding system 1 comprises a first connecting means 2 and a second connecting means 3.
  • the first connecting means 2 is attached to a frame 4 carrying a power converter 5.
  • the second connecting means is attached to a support 6.
  • a recess 7 is seen in the second connecting means 3.
  • the recesses 7 are formed in the vertical direction and therefore restricts movement of the first connecting means 2 to the vertical direction. All the parts mentioned are located within a nacelle of a wind turbine generator (not shown).
  • the frame 4 is attached to a crane by means of cables (not shown). In this illustrative embodiment the frame 4 is shown as a pair of beams attached to the power converter 5.
  • the frame 4 may be attached to the power converter by any suitable means, e.g. by welding, screws, and nuts and bolt, or the frame 4 may be fully integrated in the power converter 5. As such, it is not important how the frame 4 and the power converter 5 is located in relation to each other, however in the illustrated embodiment the frame 4 is located at the bottom of the power converter 5.
  • the support 6 may form the floor or part of the floor in the nacelle.
  • the support 6 may have a grid-like structure and be formed by profiled metal beams preferably welded together.
  • the support 6 should have sufficient strength to support one or more power converters 5 in the nacelle.
  • Fig 2 shows the embodiment of Fig 1 seen from the above. Two pairs of first connecting means 2 and second connecting means 3 are shown.
  • the first connecting means 2 is attached to the frame 4 carrying the power converter 5.
  • the second connecting means 3 are attached to the support 6.
  • the first connecting means 2 comprises hook-like L-profiles 8 to engage with the recesses 7 of the second connecting means 3.
  • Fig 3a and 3b illustrate the engagement between the first connecting means 2 and the second connecting means 3.
  • the L-profiles 8 of the first connecting means 2 are located in the recesses 7 of the second connecting means forming a dovetail- like connection.
  • the engagement is seen from the side.
  • Fig 4a and 4 b illustrate an alternative embodiment of the guiding system according to the invention.
  • the first connecting means 2 comprises a hook constituted by a L-profile 8 adapted to engage with a hole or recess 7 in the second connecting means 3.
  • Fig 4a shows the connecting means 2 and 3 apart.
  • Fig 4b and 4c shows the connecting means engaging.
  • Fig 4b shows the engagement from the side and Fig 4c shows the engagement from above.
  • Fig 5 shows a protrusion 9 that supports the frame 4 at the bottom when connecting means 2 and 3 connects the support 6 and the frame 4.
  • the protrusion 9 comprises an edge 10 that improves the supporting action on the frame 4.
  • This embodiment is advantageously if the first and second connecting means 2, 3 are unable to carry the load of the frame 5 and the power converter 5.
  • a wedging action between the first and second connecting means 2, 3 may appear as the result of the centre of gravity is outside the guiding means 2,3. This may lead to a tilting of the frame 4 and the power converter 5.
  • the tilting can be avoided by use of the protrusion 9, where the edge 10 abuts the bottom of the frame 4 and provides a further support that in combination with the guiding means prevents the tilting.
  • the embodiments shown in Fig 1 to 5 are meant to illustrate the principle of the invention and the dimensions of the connecting means in relations to the dimensions of the frame and the support are exaggerated.

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

La présente invention a pour objet un aérogénérateur, comprenant une nacelle qui comporte au moins un convertisseur de puissance. Ledit convertisseur de puissance comprend un châssis conçu pour être fixé à un support par un système de guidage, ce système de guidage comportant un premier et un second moyen de raccordement permettant un déplacement entre le châssis et le support dans une première direction, et empêchant tout déplacement entre le châssis et le support dans une seconde direction essentiellement perpendiculaire à ladite première direction. La présente invention concerne également un procédé permettant de remplacer un convertisseur de puissance comportant un châssis fixé à un support dans une nacelle d’aérogénérateur.
PCT/DK2009/050286 2008-10-31 2009-10-30 Aérogénérateur comprenant un châssis conçu pour être fixé à un support par un système de guidage WO2010048964A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA200801504 2008-10-31
DKPA200801504 2008-10-31
US11066908P 2008-11-03 2008-11-03
US61/110,669 2008-11-03

Publications (2)

Publication Number Publication Date
WO2010048964A2 true WO2010048964A2 (fr) 2010-05-06
WO2010048964A3 WO2010048964A3 (fr) 2011-02-17

Family

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Application Number Title Priority Date Filing Date
PCT/DK2009/050286 WO2010048964A2 (fr) 2008-10-31 2009-10-30 Aérogénérateur comprenant un châssis conçu pour être fixé à un support par un système de guidage

Country Status (1)

Country Link
WO (1) WO2010048964A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3293393A1 (fr) * 2016-09-12 2018-03-14 Senvion GmbH Dispositif et procédé d'échange de composants échangeables d'une éolienne

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546953A1 (fr) * 1983-06-02 1984-12-07 Chenel Guy Construction demontable, notamment pour exposition temporaire
US5244300A (en) * 1991-02-28 1993-09-14 Lehigh University Structural connector approximating a cone of elliptical cross-section
EP1101934A2 (fr) * 1999-11-18 2001-05-23 Enron Wind GmbH Eolienne avec grue de bord mobile
EP1617075A1 (fr) * 2004-07-13 2006-01-18 Eickhoff Machinenfabrik GmbH Procédé et dispositif pour le remplacement de la transmission dans une éolienne
EP1715182A1 (fr) * 2005-04-22 2006-10-25 NORDEX ENERGY GmbH Dispositif pour supporter et aligner un générateur d'une éolienne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546953A1 (fr) * 1983-06-02 1984-12-07 Chenel Guy Construction demontable, notamment pour exposition temporaire
US5244300A (en) * 1991-02-28 1993-09-14 Lehigh University Structural connector approximating a cone of elliptical cross-section
EP1101934A2 (fr) * 1999-11-18 2001-05-23 Enron Wind GmbH Eolienne avec grue de bord mobile
EP1617075A1 (fr) * 2004-07-13 2006-01-18 Eickhoff Machinenfabrik GmbH Procédé et dispositif pour le remplacement de la transmission dans une éolienne
EP1715182A1 (fr) * 2005-04-22 2006-10-25 NORDEX ENERGY GmbH Dispositif pour supporter et aligner un générateur d'une éolienne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3293393A1 (fr) * 2016-09-12 2018-03-14 Senvion GmbH Dispositif et procédé d'échange de composants échangeables d'une éolienne

Also Published As

Publication number Publication date
WO2010048964A3 (fr) 2011-02-17

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