EP2440783A1 - Eolienne et nacelle associée - Google Patents

Eolienne et nacelle associée

Info

Publication number
EP2440783A1
EP2440783A1 EP09776696A EP09776696A EP2440783A1 EP 2440783 A1 EP2440783 A1 EP 2440783A1 EP 09776696 A EP09776696 A EP 09776696A EP 09776696 A EP09776696 A EP 09776696A EP 2440783 A1 EP2440783 A1 EP 2440783A1
Authority
EP
European Patent Office
Prior art keywords
tower
support
extending
rotor
stabilizing
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Withdrawn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
EP09776696A
Other languages
German (de)
English (en)
Inventor
Thomas Korzeniewski
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.)
Powerwind GmbH
Original Assignee
Powerwind 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
Application filed by Powerwind GmbH filed Critical Powerwind GmbH
Publication of EP2440783A1 publication Critical patent/EP2440783A1/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Withdrawn legal-status Critical Current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
    • 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
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • 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
    • F05B2240/80—Platforms for stationary or moving blades
    • 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 invention relates to a wind energy plant with a tower having a tower axis extending approximately in the direction of gravity, a gondola rotatably mounted at the upper end of the tower with respect to the tower axis and rotatable on the nacelle with respect to a rotor axis extending transversely, in particular approximately perpendicular, to the tower axis mounted rotor, in which the nacelle a geometrically penetrated by the tower axis base frame and on the side facing away from the rotor of the base frame starting therefrom with respect to the tower axis radially outwardly extending and for supporting plant components, such as one possibly via a transmission the rotor coupled generator, serving support surface comprising carrier assembly comprises.
  • Wind energy plants with a tower, a gondola rotatably mounted thereon and a rotor rotatably mounted on the nacelle are described, for example, in WO 2006/032237 A2.
  • a base frame of the nacelle is wavy equipped to improve the load transfer of the static and dynamic forces in the tower of the wind turbine. This should be the case with known wind energy plants. This happens that arise at the connection points between the wavy designed base frame and the base frame with the tower connecting rotary bearing only point loads that are optimally derivable.
  • the nacelle above the base frame is designed in the manner of a self-supporting truss structure.
  • wind turbines are used, in which the nacelle in addition to the base frame also on the side facing away from the rotor of the base frame, starting therefrom with respect to the tower axis radially outwardly extending and for supporting plant components, such as a possibly over a transmission to the rotor coupled generator, serving support surface comprising carrier assembly comprises.
  • Such nacelle constructions offer enough space for the accommodation of all essential plant components.
  • the present invention seeks to provide wind turbines of the type described above, which can be installed with less material use without excessive installation work.
  • this object is achieved by a development of the known wind turbines, which essentially characterized in that the carrier assembly has an at least partially spaced above the support surface arranged stabilization arrangement, in which upon application of the support surface with a force in the direction of gravity a tensile force is initiated.
  • the stabilization device acts like the upper flange of a bridge whose lower flange is formed by the components of the carrier arrangement which form the support surface and originate from the base frame.
  • the upper belt formed by the stabilization device can be arranged in a basically arbitrary distance above the support surface so as to increase the static moment of the overall construction, without thereby increasing the weight of the support assembly as a whole.
  • the plant components, such as the generator, can be at least partially disposed between stabilizer and support surface. Therefore, with a simultaneous improvement in the rigidity of the overall arrangement, it is also possible to achieve a significant reduction in the overall height of the overall arrangement or of the components forming the support surface, because it is no longer necessary to use individual support elements with a particularly large overall height.
  • the projection of the carrier arrangement of wind turbines according to the invention beyond the base frame can be 5 m or more, in particular 7 m or more, whereby a total height of 2 m or more, in particular about 3 m or more, can result.
  • the base frame and support assembly are at least two parts, wherein the support assembly at least one fixed to the base frame and transverse to the tower axis, esp. In the horizontal direction, extending support element, such as a double T-beam, has.
  • the support assembly comprises two approximately parallel to each other and the support surface limiting support elements, each of which may be attached via a screw on the base frame.
  • the individual support elements such as individual double-T beams, can be designed with a lower overall height and a correspondingly lower weight without impairing the vertical rigidity, so that even lower requirements are placed on the screw connections.
  • corresponding screws can be chosen smaller and more economical.
  • the support elements may have closed or open cross-sections, with the use of double-T profiles has proven to be particularly favorable.
  • the carrier assembly of a wind turbine expediently has at least one extending approximately parallel to the tower axis or a acute angle of less than 15 °, esp. Less than 10 °, with the tower axis enclosing and serving to support the stabilizer on the tower support member, wherein the lower end of the support member preferably rests on the rotatably supported on the tower base frame so as to direct force transmission from the stabilizer (over the base frame) into the tower.
  • the stabilization device may comprise at least one stabilizing element having the upper belt and extending at a distance, preferably approximately parallel to the support element in the horizontal direction, or an acute angle of less than 15 °, in particular less than 10 °, with the support element enclosing, for example, with a Screw is connected to the upper end of the support member.
  • the stabilization device comprises two approximately parallel to each other, for example.
  • a further stabilization of the overall arrangement can be achieved if the stabilizing element is connected to the support element via a coupling element fastened on the one hand to a support element and on the other hand to the stabilizing element, wherein the coupling element can extend in the manner of a strut approximately parallel to the support element between stabilizing element and support element.
  • strut-like coupling elements can be used which enclose an acute angle of preferably about 30 to 60 ° with the stabilizing element.
  • a further stabilization of the overall arrangement is possible if the carrier element is used in the manner of a span of a cantilever reducing pylon and the stabilizing device at least one remote from the base frame upper end of the support member and / or a coupling element on its side facing away from the rotor obliquely Having below the upper end of the support member and / or a coupling element on its side facing the rotor extending obliquely downwards in the direction of the support base and thus connected tension element extending in the direction of the support element and thus connected.
  • the carrier arrangement has two longitudinally extended support elements arranged side by side in an approximately horizontally extending support plane, each of which is fastened to a side of the base frame facing away from the rotor and the stabilization device comprises at least two elongate stabilizing elements arranged in a stabilization plane extending above the support plane, wherein the support elements and the stabilization elements are arranged in a direction perpendicular to the longitudinal direction of a support element extending cutting plane on the vertices of a rectangle.
  • the base frame may be formed from a cast material, while the releasably connected support structure may comprise a welded steel strut construction.
  • Fig. 1 is a side view of a wind turbine according to the invention.
  • Fig. 2 is a plan view of the fixed to the base frame carrier assembly.
  • the wind turbine shown in the drawing comprises a tower 5 and a generally designated 10 nacelle.
  • the nacelle 10 has a relative to the tower axis A rotatably mounted at the upper end of the tower 5 base frame 20 and a generally designated 30 carrier assembly.
  • the carrier assembly 30 extends on the side remote from the rotor hub 8 indicated by the dash-dot side 8 of the base frame 20, starting therefrom with respect to the axis A of the tower 5 radially outward.
  • the carrier assembly 30 essentially serves to support the generator of the wind turbine. It comprises two screwed to the base frame 20 and extending radially outward approximately in the horizontal direction, for example. Formed in the manner of a double-T-profile, supporting elements 12 which are interconnected via cross members 13.
  • the upper boundary surfaces of the support elements 12 and cross members 13 form supporting surfaces 32 serving for supporting system components.
  • the support frames formed above the support elements 12 ordered stabilization device also comprises two approximately parallel to the support elements 12 extending stabilizing elements 14 which about about parallel to the tower axis A in the direction of gravity extending or an acute angle of less than 10 ° with the tower axis A enclosing struts 16 and an angle ⁇ of 30 to 60 0 C with the stabilizing elements enclosing struts 42 are connected to the support members 12.
  • the supporting elements 12 and the stabilizing elements 14 lie approximately at the corner points of a rectangle.
  • the carrier assembly 30 in addition to the support elements 12 and the stabilizing elements 14, also includes a resting at its lower end on the base frame 20 support member 40, starting from the base frame 20 approximately parallel to the tower axis A and an acute angle ß of less than 10th ° with the base frame enclosing upwards.
  • the stabilizing elements 14 are connected to the rotor 8 facing away from the boundary surface of the support member 40.
  • the support member 40 serves as a pylon, at its upper end on the rotor 8 side facing obliquely downward toward the base frame 20 extending tension members 44 are mounted so as to reduce the effective span of the cantilever formed by the support assembly 30.

Abstract

L'invention concerne une éolienne présentant une tour dont l'axe est orienté approximativement selon la direction de la gravité, une nacelle montée sur l'extrémité supérieure de la tour de façon à pouvoir tourner par rapport à l'axe de la tour et un rotor monté, sur la nacelle, de façon à pouvoir tourner par rapport à un axe de rotor s'étendant de manière transversale, en particulier de manière approximativement perpendiculaire, à l'axe de la tour. La nacelle comprend un cadre de base traversé géométriquement par l'axe de la tour et un dispositif de support s'étendant radialement vers l'extérieur par rapport à l'axe de la tour sur le côté opposé au rotor du cadre de base, à partir de ce dernier, et présentant une surface d'appui servant à soutenir des composants d'installation, comme par exemple un générateur accouplé éventuellement au rotor par l'intermédiaire d'une transmission. Le dispositif de support présente un dispositif de stabilisation qui est agencé au moins partiellement à une certaine distance au-dessus de la surface d'appui et dans lequel est introduite une force de traction lorsque la surface d'appui est soumise à une force dans la direction de la gravité.
EP09776696A 2009-06-08 2009-06-08 Eolienne et nacelle associée Withdrawn EP2440783A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/004106 WO2010142304A1 (fr) 2009-06-08 2009-06-08 Eolienne et nacelle associée

Publications (1)

Publication Number Publication Date
EP2440783A1 true EP2440783A1 (fr) 2012-04-18

Family

ID=42236702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09776696A Withdrawn EP2440783A1 (fr) 2009-06-08 2009-06-08 Eolienne et nacelle associée

Country Status (2)

Country Link
EP (1) EP2440783A1 (fr)
WO (1) WO2010142304A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3475564B1 (fr) * 2016-06-22 2020-11-04 Vestas Wind Systems A/S Outil de renforcement pour la structure du cadre arrière d'une nacelle d'éolienne
EP3324044B1 (fr) 2016-11-21 2019-10-16 Nordex Energy GmbH Nacelle d'éolienne
EP3447283B1 (fr) 2017-08-22 2021-12-01 Nordex Energy SE & Co. KG Nacelle d'éolienne et support de générateur

Family Cites Families (6)

* 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
EP1291521A1 (fr) * 2001-09-06 2003-03-12 Turbowinds N.V./S.A. Eolienne avec grue de bord mobile
EP1336755A1 (fr) * 2002-02-19 2003-08-20 Vestas Wind Systems A/S Méthode pour le transport d'une nacelle d'éolienne
ES2595109T3 (es) * 2006-06-29 2016-12-27 Vestas Wind Systems A/S Un sistema de manejo para una góndola de turbina eólica, métodos para transporte y desplazamiento vertical de una góndola de turbina eólica y un uso de un sistema de manejo
CN101490412B (zh) * 2006-07-14 2011-10-19 维斯塔斯风力系统有限公司 包括形成为法拉第笼的封闭结构的风轮机
KR20110134256A (ko) * 2008-04-30 2011-12-14 아레파 빈트 게엠베하 풍력 에너지 장치의 나셀의 패널

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010142304A1 *

Also Published As

Publication number Publication date
WO2010142304A1 (fr) 2010-12-16

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