EP2376772A2 - Nacelle d'éolienne - Google Patents

Nacelle d'éolienne

Info

Publication number
EP2376772A2
EP2376772A2 EP09771492A EP09771492A EP2376772A2 EP 2376772 A2 EP2376772 A2 EP 2376772A2 EP 09771492 A EP09771492 A EP 09771492A EP 09771492 A EP09771492 A EP 09771492A EP 2376772 A2 EP2376772 A2 EP 2376772A2
Authority
EP
European Patent Office
Prior art keywords
wind turbine
nacelle
strut member
turbine nacelle
nacelle according
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Withdrawn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
EP09771492A
Other languages
German (de)
English (en)
Inventor
Thomas Hjort
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.)
Vestas Wind Systems AS
Original Assignee
Vestas Wind Systems AS
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 AS filed Critical Vestas Wind Systems AS
Publication of EP2376772A2 publication Critical patent/EP2376772A2/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Withdrawn legal-status Critical Current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 
    • 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
    • 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
    • F03D80/80—Arrangement of components within nacelles or towers
    • 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
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • 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

  • the present invention relates to a wind turbine nacelle and a wind turbine.
  • the nacelle of a modern wind turbine may comprise a number of components weighing more than one ton such as the gearbox, electric generator, power converter and transformer, respectively.
  • the heavy components distributed in the long nacelle require a strong nacelle structure and accompanying yaw mechanism in order to continuously sustain and transfer the induced forces i.e. also resulting in a nacelle structure adding significantly to the total weight of the nacelle.
  • An object of the present invention is therefore to provide a wind turbine nacelle with an improved structure and especially in relation to transfer of forces.
  • a wind turbine nacelle comprising
  • At least one strut member carrying one or more of said wind turbine components at least one strut member carrying one or more of said wind turbine components
  • tie and strut members are connected at one end to each other and at the opposite ends to different positions on the base member for establishing one or more closed structures.
  • said one or more closed structure is triangular, substantially triangular in shape or at least has a triangular transfer of forces with said tie member as the upper triangle side which ensures a simple and strong structure in the nacelle.
  • said at least one tie member is one or more lightweight beams, cable stays or wires.
  • said strut member is inclined in relation to a horizontal plane by an angle ⁇ in a range of 15 to 75° such as approx. 45°.
  • the number of said at least one strut member is one centrally situated member in relation to the nacelle sides and orientated toward the rear of the nacelle.
  • a lightweight nacelle structure with the possibility of positioning the wind turbine components such as an electric generator on top of or below the member as well as attached on one or both sides e.g. as two separate generators for the same gearbox.
  • Other multiple configurations of a wind turbine component on opposite side of the member and behind or in front of another heavy component are also possible.
  • the number of said at least one strut member is two members at the nacelle sides e.g. parallel in direction or orientated to meet at the rear of the nacelle.
  • One or more of electric generators, power converters and transformers are carried by said at least one strut member in an even further aspect of the invention.
  • the layout, configuration and manufacturing of the nacelle are simplified by the strut member being capable of carrying most of or all of said wind turbine component i.e. establishing one straight line of components behind the gearbox without creating torque in the nacelle structure.
  • the transformer is suspended from said component carrying member in a suspension arrangement including a shaft attachment and one or more movement dampers and/or actuators.
  • the suspension arrangement ensures that the transformer is allowed to swing in a controlled manner in response to any nacelle vibrations and thus avoid fatigue in the suspension of the transformer.
  • the actuators may be used to control the movement of the transformer in an active damping of vibrations in the transformer or in the wind turbine as such.
  • said suspension arrangement being suspended to said component carrying member in a flexible joint connection and/or includes a flexible joint connection allowing the transformer to sway and/or said flexible joint connection is a cardan, ball or similar universal coupling joint.
  • fig. 1 illustrates a large modern wind turbine as known in the art
  • fig. 2 illustrates a simplified cross sectional view of a well- known wind turbine nacelle, as seen from the side,
  • fig. 3 illustrates schematically a wind turbine nacelle with a load carrying structure, as seen from the side,
  • fig. 4 illustrates the wind turbine nacelle of fig. 3 with more details
  • figs. 5a and 5b illustrate schematically another embodiment of the load carrying structure in the nacelle
  • fig. 6 illustrates a sectional view of a suspension arrangement for suspending a transformer in a load carrying structure of the wind turbine nacelle
  • fig. 7 illustrates a flexible embodiment of the suspension arrangement for a transformer, as seen from the rear of the nacelle.
  • Fig. 1 illustrates a large modern wind turbine 1 as known in the art, comprising a tower 2 and a wind turbine nacelle 3 positioned on top of the tower 2.
  • the wind turbine rotor 4 comprises three wind turbine blades 5 mounted on a common hub 6 which is connected to the nacelle 3 through the low speed shaft extending out of the nacelle 3 front.
  • the wind turbine rotor 4 could comprise another number of blades 5 such as one, two, four, five or more.
  • the wind turbine is erected on a concrete foundation 7 mainly positioned below a ground level 8 in order to establish a wind power plant for connection to a utility grid (not illustrated on the figure) transferring the generated power to utility customers.
  • Fig. 2 illustrates a simplified cross sectional view of a nacelle 3, as seen from the side with a number of wind turbine components being present.
  • the nacelle establishes a force transferring connection between the wind turbine rotor (not illustrated on the figure) and the tower 2 by especially including a bedframe as a bell-shaped member 9 carrying a gearbox 14 and a yaw mechanism 10 allowing a rotational connection to the tower.
  • the illustrated nacelle also includes two sets of horizontal orientated lower and upper side beams 11, 12 wherein the lower beams 1 1 are attached to the bell-shaped member 9.
  • the lower and upper beams 11, 12 are directly or indirectly connected by a number of further beams 13 in order to establish a nacelle structure.
  • a floor level support structure is established between the two lower side beams 11 , 12 in order to carry further wind turbine components such as the electric generator 15, the power converter 16 (illustrated as a number of converter units) and a transformer 17.
  • the transformer 17 transforms the electric power generated by the generator 15 and converted by the power converter 16 to a different high voltage level for feeding the power to the utility grid.
  • Fig. 3 illustrates schematically a wind turbine nacelle with a load carrying structure 20, as seen from the side, with a connection to the wind turbine tower 2 via the yaw mechanism 10.
  • the nacelle load carrying structure is illustrated as a closed structure having a triangular shape defined by a base member 21 including the bell-shaped bedframe 9, a strut member 19 and a tie member 22.
  • the nacelle may comprise one or two triangular shaped structures e.g. with the strut member 19 centrally located or located at both nacelle sides, respectively.
  • the nacelle may also comprise more than two triangular shaped structures e.g. one centrally located and two located at the nacelle sides.
  • the strut member 19 is inclined in relation to a horizontal plane (illustrated with the dotted line) by an angle ⁇ e.g. in a range of 15 to 75° such as approx. 45° orientated toward the rear of the nacelle.
  • the strut member 19 is schematically illustrated with one wind turbine component 18 such as an electric generator, power converter or transformer attached to the member 19.
  • the weight of the wind turbine component is converted to a force compressing the strut member 19 (illustrated with the arrow F strut ) and tensioning the tie member 22 (illustrated with the arrow F t j e ) in relation to the two different connection positions on the base member 21 and the bedframe 9.
  • the forces are transferred with the rigid connection established by the bedframe, yaw mechanism and tower 2 to the wind turbine foundation.
  • Fig. 4 illustrates the wind turbine nacelle of fig. 3 including a number of wind turbine components attached to the strut member 19.
  • the generator 15 is illustrated as being the first wind turbine component attached to the strut member 19 with use of connection means 24 such as bolts, rods or similar attachment means.
  • Fig. 5a and 5b illustrate schematically another embodiment of the load carrying structure 20 in the nacelle 3.
  • Fig. 5 a illustrates the load carrying structure of the nacelle, as seen from the side, with only the generator 15 and the transformer 17 present for clarity purposes.
  • the figure also illustrates a further cable stay 22a complementing the cable stay 22 of fig. 4 i.e. adding a bridge like suspension to the structure by using two (or more) cable stays.
  • the cable stays are connected to the structure in connection points 23, 23a on the strut member 19 e.g. in proximity of the connection means 24 for the wind turbine components.
  • Fig. 5b illustrates the embodiment of fig. 5a as seen from above.
  • the added cable stays 22a are illustrated in the embodiment as diagonally connecting the base frame 20 with the strut member 19 while the cable stays 22 are illustrated as in alignment with the nacelle 3. All the stays may however also be directed diagonally or in alignment with the nacelle 3 in other embodiments of the invention.
  • connection means 24 such as bolts, rods or similar attachment means between the two wind turbine components 15, 17 and the two strut members 19 of the embodiment.
  • the nacelle structure comprising strut and tie members may also be provided with a crane system allowing a wind turbine component such as a transformer to be released from the strut member(s) and lowered via a nacelle opening to the ground by the crane and/or elevated from the ground level to the members in an installation or replacement action.
  • Fig. 6 illustrates a suspension arrangement for the transformer 17 on the strut member 19 of the load carrying structure in the wind turbine nacelle 3.
  • the arrangement includes use of a pivoting connection means 24 and movement dampers or actuators 26 in attaching the transformer on the strut member 19.
  • the transformer may move back and forth in the longitudinal direction of the nacelle in response to nacelle vibrations but in a restricted manner by the movement dampers.
  • Fig. 7 illustrates a further embodiment of the suspension arrangement for the transformer 17, as seen from the rear of the nacelle, wherein the flexibility of the arrangement is enhanced by establishing a cardan functionality allowing the transformer to sway longitudinally and transversely (as illustrated with the arrows) in between the strut members 19 of the two closed structures.
  • Transformer for feeding generated power to the utility grid 18.
  • Wind turbine component such as generator, power converter or transformer
  • Strut member e.g. one or more beams or cable stays 23. Connection for the strut member

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 concerne une nacelle d'éolienne comprenant des composants d'éolienne. La nacelle comprend également une structure de support de charge comprenant un élément de base qui établit une connexion entre le rotor et la tour de l'éolienne, au moins un élément de fixation, et au moins un élément d'entretoise qui supporte un ou plusieurs desdits composants d'éolienne. Les éléments de fixation et d'entretoise sont connectés à une première extrémité l'un à l'autre, et aux extrémités opposées à différentes positions sur l'élément de base de manière à former une ou plusieurs structures fermées.
EP09771492A 2008-12-16 2009-12-11 Nacelle d'éolienne Withdrawn EP2376772A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12290008P 2008-12-16 2008-12-16
DKPA200801790 2008-12-16
PCT/DK2009/000253 WO2010069315A2 (fr) 2008-12-16 2009-12-11 Nacelle d'éolienne

Publications (1)

Publication Number Publication Date
EP2376772A2 true EP2376772A2 (fr) 2011-10-19

Family

ID=42269146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09771492A Withdrawn EP2376772A2 (fr) 2008-12-16 2009-12-11 Nacelle d'éolienne

Country Status (2)

Country Link
EP (1) EP2376772A2 (fr)
WO (1) WO2010069315A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8922038B2 (en) * 2010-12-08 2014-12-30 Northern Power Systems, Inc. Wind power unit having an underslung transformer
EP2565445B1 (fr) * 2011-09-02 2014-02-26 Siemens Aktiengesellschaft Chambre de transformateur pour éolienne, composant de structure d'éolienne, éolienne et procédé d'assemblage d'éolienne
EP2849189A1 (fr) * 2013-09-12 2015-03-18 Siemens Aktiengesellschaft Agencement de transformateur d'éolienne
EP3475561B1 (fr) 2016-06-22 2020-10-14 Vestas Wind Systems A/S Nacelle d'éolienne avec une structure du cadre arrière dotée de joints souples
WO2018001428A1 (fr) * 2016-06-27 2018-01-04 Vestas Wind Systems A/S Cadre pour supporter une charge dans une éolienne
EP3483428A1 (fr) * 2017-11-08 2019-05-15 Nordex Energy GmbH Moyens d'augmentation de la rigidité flexionnelle des composants porteurs d'une éolienne
EP3557052A1 (fr) * 2018-04-16 2019-10-23 Siemens Gamesa Renewable Energy A/S Support de transformateur pour une éolienne
EP3770427A1 (fr) * 2019-07-22 2021-01-27 Siemens Gamesa Renewable Energy A/S Système de transformateur de turbine d'éolienne
EP4133177A1 (fr) 2020-04-07 2023-02-15 Vestas Wind Systems A/S Nacelle dotée de câbles de renfort pré-tendus
EP4261404A1 (fr) * 2022-04-12 2023-10-18 General Electric Renovables España S.L. Cadre de turbine éolienne à couplage souple

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK173530B2 (da) * 1999-11-17 2005-07-18 Siemens Wind Power As Fremgangsmåde til montering af hovedkomponenter i kabine på vindmölle og en sådan kabine til vindmölle
ATE284487T1 (de) * 2000-03-17 2004-12-15 Gen Electric Offshore-windkraftanlage
DE10327849A1 (de) 2003-06-18 2005-01-05 W2E Wind To Energy Gmbh Verfahren und Vorrichtung zum Auswechseln des Rotorlagers einer Windenergieanlage
EP3144524B1 (fr) * 2006-06-29 2018-12-05 Vestas Wind Systems A/S Système de manutention d'une nacelle d'éolienne, procédés de transport et de déplacement vertical d'une nacelle d'éolienne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010069315A2 *

Also Published As

Publication number Publication date
WO2010069315A3 (fr) 2010-11-25
WO2010069315A2 (fr) 2010-06-24

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