WO2008069818A1 - Grue à plate-forme mobile pour pièces d'éolienne - Google Patents

Grue à plate-forme mobile pour pièces d'éolienne Download PDF

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Publication number
WO2008069818A1
WO2008069818A1 PCT/US2006/061772 US2006061772W WO2008069818A1 WO 2008069818 A1 WO2008069818 A1 WO 2008069818A1 US 2006061772 W US2006061772 W US 2006061772W WO 2008069818 A1 WO2008069818 A1 WO 2008069818A1
Authority
WO
WIPO (PCT)
Prior art keywords
wind turbine
components
support
crane assembly
hub
Prior art date
Application number
PCT/US2006/061772
Other languages
English (en)
Inventor
Michael Hornemann
Richard Soles
Original Assignee
General Electric Company
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 General Electric Company filed Critical General Electric Company
Priority to PCT/US2006/061772 priority Critical patent/WO2008069818A1/fr
Publication of WO2008069818A1 publication Critical patent/WO2008069818A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • B66C23/207—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided by wind turbines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • 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
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/916—Mounting on supporting structures or systems on a stationary structure with provision for hoisting onto the structure
    • 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 is directed to crane assemblies and methods for servicing and installing components of wind turbines.
  • a wind turbine includes a rotor having multiple blades.
  • the rotor is mounted to a housing or nacelle, which is positioned on top of a truss or tubular tower.
  • Utility grade wind turbines i.e., wind turbines designed to provide electrical power to a utility grid
  • the wind turbines are typically mounted on towers that are at least 60 meters in height. Blades on these rotors transform wind energy into a rotational torque or force that drives one or more generators that may be rotationally coupled to the rotor through a gearbox.
  • the gearbox steps up the inherently low rotational speed of the turbine rotor for the generator to efficiently convert mechanical energy to electrical energy, which is fed into a utility grid.
  • the wind turbine utilizes a variety of wind turbine components, such as shafts, gearing components, pitch drives, generator components and other components within the wind turbine.
  • Components in the wind turbine typically have to be installed, serviced or replaced using mobile land-based cranes and/or manually carrying components to remove and/or replace components.
  • Wind turbine components may be large or awkward to handle, precluding manual transportation of the components.
  • wind turbines may be installed on uneven terrain and/or on very high towers (e.g., - 2 -
  • a first aspect of the present invention includes a portable crane assembly for servicing a wind turbine.
  • the crane assembly includes a boom member having a lift member attached to at least one post member.
  • the post members are configured to attach to a first portion of the wind turbine.
  • a support is connected to the post members. The support further connects to a second portion of the wind turbine.
  • the lift member includes a line for lifting wind turbine components and is sufficiently movable on the boom member to transport wind turbine components to and from the wind turbine.
  • the system includes a wind turbine having a nacelle and a hub.
  • the system further includes a crane assembly having a boom member attached to at least one post member.
  • the at least one post members are affixed to the hub.
  • a support is connected to the post members and is further connected to the nacelle.
  • the crane assembly is configured to transport a wind turbine component to and from the wind turbine.
  • Another aspect of the present invention includes a method for servicing a wind turbine.
  • the method includes assembling a portable crane assembly on a first portion and second portion of the wind turbine.
  • the crane assembly includes a boom member attached to at least one post member.
  • the at least one post member is affixed to the first portion of the wind turbine.
  • a support is connected to the at least one post member.
  • the support is further connected to the second portion of the wind turbine.
  • the lift member is operated to extend or retract a line affixed to a wind turbine component.
  • the lift member is directed along the boom member to transport wind turbine components to and from the wind turbine.
  • An advantage of an embodiment of the present invention is that wind turbine components may be transported to and from a wind turbine safely and easily.
  • the components may be transported from the ground directly to the hub, wherein transportation to the yaw deck, from the yaw deck to the nacelle and from the nacelle to the hub.
  • Another advantage of an embodiment of the present invention is the crane assembly is portable and may disassemble into components easily carried by installers and/or servicers.
  • Another advantage of an embodiment of the present invention is that the components may be transported to and from the wind turbine, even when the wind turbine is installed on rugged terrain.
  • Another advantage of an embodiment of the present invention is the crane assembly is easily assembled onto existing wind turbines with few, if any, modifications required of current wind turbines.
  • FIG. 1 is a drawing of an exemplary configuration of a wind turbine.
  • FIG. 2 is a cut-away perspective view of a nacelle of the exemplary wind turbine configuration shown in FIG. 1. - 4 -
  • FIG. 3 is a cut-away perspective view of a wind turbine and crane assembly according to an embodiment of the present invention.
  • FIG. 4 is a cut-away perspective view of a wind turbine and crane assembly according to another embodiment of the present invention.
  • FIG. 5 is an enlarged elevational side-view of a crane assembly according to another embodiment of the present invention.
  • the present invention is related to a crane assembly for use with a wind turbine that is easily assembled, portable, diassembles into lightweight easily transported components, and is capable of transporting various wind turbine components both to and from the wind turbine.
  • a wind turbine 100 generally comprises a nacelle 102 housing a generator (not shown in FIG. 1).
  • Nacelle 102 is a housing mounted atop a tower 104, only a portion of which is shown in FIG. 1.
  • the height of tower 104 is selected based upon factors and conditions known in the art, and may extend to heights up to 60 meters or more.
  • the wind turbine 100 may be installed on any terrain providing access to areas having desirable wind conditions. The terrain may vary greatly and may include, but is not limited to, mountainous terrain or off-shore locations.
  • Wind turbine 100 also comprises a rotor 106 that includes one or more rotor blades 108 attached to a rotating hub 110.
  • wind turbine 100 illustrated in FIG. 1 includes three rotor blades 108, there are no specific limits on the number of rotor blades 108 required by the present invention.
  • a variable blade pitch drive 114 may control the pitch of blades 108 (not shown in FIG. 2) that drive hub 110 as a result of wind.
  • Hub 110 may be configured to receive three blades 108, but other configurations may utilize any number of blades.
  • Blades 108 are individually controlled by blade pitch drive 114.
  • Hub 110 and blades 108 together comprise wind turbine rotor 106.
  • the drive train of the wind turbine 100 includes a main rotor shaft 116 (also referred to as a "low speed shaft") connected to hub 110 via main bearing 130 and (in some configurations), at an opposite end of shaft 116 to a gear box 118.
  • Gear box 118 in some configurations, utilizes a dual path geometry to drive an enclosed high speed shaft.
  • main rotor shaft 116 is coupled directly to generator 120.
  • the high speed shaft (not shown in FIG. 2) is used to drive generator 120, which is mounted on main frame 132.
  • rotor torque is transmitted via coupling 122.
  • Generator 120 may be of any suitable type, for example and without limitation, a wound rotor induction generator or a direct drive permanent magnet generator.
  • Yaw drive 124 and yaw deck 126 provide a yaw orientation system for wind turbine 100 to rotate the wind turbine to a position that faces the wind.
  • Metero logical boom 128 provides information for a turbine control system, including wind direction and/or wind speed.
  • the yaw system is mounted on a flange provided atop tower 104.
  • the individual components within nacelle 102 may require servicing and/or replacement from time to time, either as a part of a regular maintenance schedule or due to malfunction or damage.
  • the present invention includes installing a crane assembly 300 between the hub 110 and the nacelle 102 to install/remove and lower/raise components from the ground to the wind turbine 100.
  • FIG. 3 includes substantially the same arrangement of wind turbine 100, as shown and described with respect to FIG. 2.
  • FIG. 3 includes a crane assembly 300 mounted on a hub 110 of a wind turbine 100 according an embodiment of the invention.
  • Crane assembly 300 includes a boom member 301 mounted to a post member 303.
  • the post member 303 is mounted to the hub 110 by mounting bracket 304. While FIG. 3 shows one post member 303, two or more post members 303 may also be utilized to provide support for boom member 301.
  • Mounting bracket 304 is preferably mounted to the hub 110 structure by bolting or - 6 -
  • hub access door 310 otherwise securing to surfaces within hub access door 310, such as surfaces typically utilized for installation of steps, stairs or access openings for installers and/or servicers access.
  • FIG. 3 is shown utilizing mounting bracket 304
  • the post member 303 may be attached to hub 110 in any suitable manner, including bolting, screwing, mechanical interlocking or any other fastening method.
  • the hub 110 includes a mounting bracket 304 having a connection feature that receives and retains post member 303 and provides easy assembly and disassembly of the crane assembly 300.
  • One embodiment of the invention includes a mounting bracket 304 having an enlarged opening and slot, wherein a preinstalled mounting bolt on the hub 110 may be inserted into the opening and engaged into the slot providing quick and safe installation of the post member 303.
  • Boom member 301 includes a lift member 305.
  • Boom member 301 may also include additional features, such as a temporary retention feature, such as a tab with an opening that extends from one end of the boom member 303.
  • the tab receives a short post on the post member 305 and positions and retains boom member 301 in position while fastening of boom member 301 to post member 303 is completed, permitting safe, efficient installation of crane assembly 300.
  • Lift member 305 may include a crane, lift, chain drive or any other lifting mechanism that is capable of being supported by boom member 301 and lifting wind turbine components.
  • Line 306 extends from lift member 305 and is attachable to turbine components that require lifting.
  • Line 306 may be a wire, cable, rope, chain or any other elongated device for lifting.
  • Lift member 305 preferably actuates along boom member 301 in a manner that permits both lifting from hub 110 and the lowering to ground level at a location substantially clear of the hub 110 and nacelle 102.
  • the lift member 305 provides a length of line 306 sufficiently long to lower wind turbine components to the ground from above hub 110 of the wind turbine 100.
  • Two support cables 307 are attached to post member 303 and a cable connector 309 on nacelle 102.
  • Support cables 307 may be a wire, cable, rope, chain, strap or any other elongated device capable of supporting the boom member 301.
  • the cable 307 is preferably configured at an angle and connected to the post member 303 such that sufficient support is provided for boom member 301 that - 7 -
  • FIG. 4 shows two support cables 307, one or more than two support cables may be utilized.
  • the support cable 307 and post member 303 are configured to provide sufficient support for boom member 301 to lift blade pitch drive 114 from wind turbine 100 to the ground.
  • the crane assembly 300 is positioned between adjacent blades 108 such that the crane assembly 300 is preferably positioned within access door 310.
  • the access door 310 may be any opening that allows access to components within wind turbine 100 and allows lifting of components therethrough.
  • the configuration and location of the access door 310 is not particularly limited and may include any location and/or configuration that permits lifting of wind turbine components by crane assembly 300.
  • the individual components of the crane assembly are preferably portable.
  • Portable, as utilized herein, means to be configured to disassemble into component units that can be manually carried, such as being capable of being carried to the wind turbine via stairs or other access route, by installers or servicers.
  • the components of crane assembly 300 preferably disassemble into components that are about 50 pounds or less.
  • the components of crane assembly 300 preferably are configured to be easily manipulated during assembly, allowing easy and quick assembly of the crane assembly even in conditions of high winds or adverse weather.
  • FIG. 4 includes substantially the same arrangement of wind turbine 100, as shown and described with respect to FIGs. 2 and 3.
  • FIG. 4 includes a crane assembly 300 mounted on a hub 110 of a wind turbine 100 according another embodiment of the invention.
  • the crane assembly 300 includes a boom member 301, lift member 305, post member 303, mounting bracket 304 and cable connector 309, substantially as shown and described above with respect to FIG. 3.
  • FIG. 3 further includes a post extension member 400 extending from the junction of the post members 303 and boom member 301.
  • the post extension member 400 also is configured to receive support cables 307, wherein support cables 307 are further attached to boom member 301 at attachment point 403 on boom - 8 -
  • post extension member 400 permits support cables 307 to provide additional support to boom member 301.
  • FIG. 5 shows an enlarged view of a crane assembly 300 according to another embodiment of the present invention.
  • the crane assembly 300 includes a boom member 301, lift member 305, post member 303, mounting brackets 304 and cable connector 309, substantially as shown and described above with respect to FIG. 3.
  • the embodiment shown in FIG. 5 includes a second support member 501, such as a gusset, to provide additional mechanical support to boom member 301.
  • This embodiment further includes handle 503 attached to boom member 301 and handle 505 attached to post member 303. These handles 503 and 505 provide convenient holds for installers and/or servicers to utilize during transportation of the components of the crane assembly 300.
  • the present invention is not limited to the configurations shown and described above.
  • the placement of the post member 303 and boom member 301 may be any location on the wind turbine that provides support for boom member 301 and allows the lift member to lift and transport wind turbine components.
  • handles such as handles 503 and 505, may be present on any of the crane assembly 300 components to assist in the manipulation during transporation of the components and during the installation of the components.
  • the components that may be transported utilizing crane assembly 300 may be any wind turbine components and may include, but are not limited to pitch drive components, such as pitch motors, pitch gearboxes, pitch batteries, pitch drive electronics and any other components that require maintenance or replacement.
  • the hub 110 is positioned with access door 310 oriented in a direction permitting lifting of components therethrough by crane assembly 300.
  • the access door 310 may be oriented substantially upwards in a direction toward crane assembly 300 installation and is opened to permit access.
  • Post member 303 are fastened to the hub 110 by mounting brackets 304.
  • the boom member 301 with lift member 305 are attached to post - 9 -
  • the crane assembly may be operated manually or remotely, wherein installers or servicers may position the wind turbine components near access door 310, the line 306 is affixed to the wind turbine component and is lifted through access door 310 by actuation of lift member 305.
  • the wind turbine component and the lift member 305 are moved along the boom member 301 in a direction opposite the nacelle 102 until the vertical space below the wind turbine component is sufficiently clear of the hub 110.
  • the wind turbine component is then lowered to the ground, wherein the component may be taken away to be serviced or disposed of.
  • the above process is reversed and the wind turbine component is lifted from the ground by lift member 305 via line 306.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

L'invention concerne un ensemble grue mobile (300) à des fins d'entretien d'une éolienne. L'ensemble grue comprend un organe de type flèche (303) ayant un organe de levage attaché sur au moins un organe de type montant (303). Les organes de type montant sont configurés à des fins de fixation sur une première partie (304) de l'éolienne. Un support est raccordé sur au moins un organe de type montant. Le support est par ailleurs raccordé sur une deuxième partie (309) de l'éolienne. L'organe de levage comprend un câble (306) pour lever les pièces de l'éolienne et est suffisamment mobile sur l'organe de type flèche pour transporter les pièces de l'éolienne jusque sur et en provenance de l'éolienne.
PCT/US2006/061772 2006-12-08 2006-12-08 Grue à plate-forme mobile pour pièces d'éolienne WO2008069818A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2006/061772 WO2008069818A1 (fr) 2006-12-08 2006-12-08 Grue à plate-forme mobile pour pièces d'éolienne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/061772 WO2008069818A1 (fr) 2006-12-08 2006-12-08 Grue à plate-forme mobile pour pièces d'éolienne

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WO2008069818A1 true WO2008069818A1 (fr) 2008-06-12

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009156243A2 (fr) * 2008-06-24 2009-12-30 Vestas Wind Systems A/S Enveloppe de moyeu pour le moyeu d'une éolienne
EP2147885A1 (fr) 2008-07-24 2010-01-27 General Electric Company Système de grue portable pour composants d'éolienne
DE202010016002U1 (de) 2010-12-01 2011-03-10 Nordex Energy Gmbh Mobiler Montageausleger für eine Windenergieanlage
WO2011099134A1 (fr) 2010-02-10 2011-08-18 三菱重工業株式会社 Procédé de soulèvement et d'abaissement d'équipement situé dans une tête de rotor d'un dispositif de production d'électricité éolien
EP2383463A1 (fr) * 2010-04-29 2011-11-02 General Electric Company Dispositif de support de rotor et procédé d'accès à un ensemble de transmission d'éolienne
WO2012040534A3 (fr) * 2010-09-23 2012-05-10 Northern Power Systems Utility Scale, Inc. Procédé et système pour entretenir une unité éolienne à axe horizontal
EP2505822A1 (fr) * 2011-03-31 2012-10-03 Alstom Wind, S.L.U. Eolienne
EP2192297A3 (fr) * 2008-11-21 2013-09-11 General Electric Company Système de levage et d'accès à moyeu sans spinner pour éolienne
US8807923B2 (en) 2011-02-07 2014-08-19 Vestas Wind Systems A/S Access apparatus for a wind turbine and method of using same
US8816546B2 (en) 2010-09-23 2014-08-26 Northern Power Systems, Inc. Electromagnetic rotary machines having modular active-coil portions and modules for such machines
JP2014530795A (ja) * 2012-07-31 2014-11-20 三菱重工業株式会社 クレーン装置
US8912704B2 (en) 2010-09-23 2014-12-16 Northern Power Systems, Inc. Sectionalized electromechanical machines having low torque ripple and low cogging torque characteristics
US9281731B2 (en) 2010-09-23 2016-03-08 Northem Power Systems, Inc. Method for maintaining a machine having a rotor and a stator
US9359994B2 (en) 2010-09-23 2016-06-07 Northern Power Systems, Inc. Module-handling tool for installing/removing modules into/from an electromagnetic rotary machine having a modularized active portion
EP3536951A1 (fr) 2018-03-06 2019-09-11 Senvion GmbH Engrenage de levage pour une utilisation dans des espaces confinés
US10801473B2 (en) 2017-03-29 2020-10-13 General Electric Company Hub crane assembly for a wind turbine
US10947959B2 (en) 2016-08-29 2021-03-16 Mhi Vestas Offshore Wind A/S Method and apparatus of performing maintenance on a wind turbine component
US20210222680A1 (en) * 2019-04-26 2021-07-22 General Electric Company System and method for repairing a gearbox of a wind turbine uptower

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EP1284365A2 (fr) * 2001-08-14 2003-02-19 Liebherr-Werk Biberach GmbH Appareil de levage pour éolienne
WO2005031159A1 (fr) * 2003-09-26 2005-04-07 Neg Micon A/S Procede d'entretien d'eolienne mettant en oeuvre un equipement monte sur le moyeu

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EP1101934A2 (fr) * 1999-11-18 2001-05-23 Enron Wind GmbH Eolienne avec grue de bord mobile
EP1284365A2 (fr) * 2001-08-14 2003-02-19 Liebherr-Werk Biberach GmbH Appareil de levage pour éolienne
WO2005031159A1 (fr) * 2003-09-26 2005-04-07 Neg Micon A/S Procede d'entretien d'eolienne mettant en oeuvre un equipement monte sur le moyeu

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009156243A3 (fr) * 2008-06-24 2010-12-02 Vestas Wind Systems A/S Enveloppe de moyeu pour le moyeu d'une éolienne
CN102084129A (zh) * 2008-06-24 2011-06-01 维斯塔斯风力系统有限公司 用于风轮机轮毂的轮毂封闭件
WO2009156243A2 (fr) * 2008-06-24 2009-12-30 Vestas Wind Systems A/S Enveloppe de moyeu pour le moyeu d'une éolienne
EP2147885A1 (fr) 2008-07-24 2010-01-27 General Electric Company Système de grue portable pour composants d'éolienne
CN101654211A (zh) * 2008-07-24 2010-02-24 通用电气公司 用于风力涡轮机部件的便携式起重机系统
US8104631B2 (en) 2008-07-24 2012-01-31 General Electric Company Portable crane system for wind turbine components
EP2192297A3 (fr) * 2008-11-21 2013-09-11 General Electric Company Système de levage et d'accès à moyeu sans spinner pour éolienne
EP2535578A1 (fr) * 2010-02-10 2012-12-19 Mitsubishi Heavy Industries, Ltd. Procédé de soulèvement et d'abaissement d'équipement situé dans une tête de rotor d'un dispositif de production d'électricité éolien
US8596614B2 (en) 2010-02-10 2013-12-03 Mitsubishi Heavy Industries, Ltd. Method for hoisting and lowering device in rotor head of wind turbine generator
WO2011099134A1 (fr) 2010-02-10 2011-08-18 三菱重工業株式会社 Procédé de soulèvement et d'abaissement d'équipement situé dans une tête de rotor d'un dispositif de production d'électricité éolien
EP2535578A4 (fr) * 2010-02-10 2013-10-23 Mitsubishi Heavy Ind Ltd Procédé de soulèvement et d'abaissement d'équipement situé dans une tête de rotor d'un dispositif de production d'électricité éolien
EP2383463A1 (fr) * 2010-04-29 2011-11-02 General Electric Company Dispositif de support de rotor et procédé d'accès à un ensemble de transmission d'éolienne
US8912704B2 (en) 2010-09-23 2014-12-16 Northern Power Systems, Inc. Sectionalized electromechanical machines having low torque ripple and low cogging torque characteristics
US9812909B2 (en) 2010-09-23 2017-11-07 Weg Electric Corp Sectionalized electromechanical machines having low torque ripple and low cogging torque characteristics
WO2012040534A3 (fr) * 2010-09-23 2012-05-10 Northern Power Systems Utility Scale, Inc. Procédé et système pour entretenir une unité éolienne à axe horizontal
US9359994B2 (en) 2010-09-23 2016-06-07 Northern Power Systems, Inc. Module-handling tool for installing/removing modules into/from an electromagnetic rotary machine having a modularized active portion
US8816546B2 (en) 2010-09-23 2014-08-26 Northern Power Systems, Inc. Electromagnetic rotary machines having modular active-coil portions and modules for such machines
US9281731B2 (en) 2010-09-23 2016-03-08 Northem Power Systems, Inc. Method for maintaining a machine having a rotor and a stator
DE202010016002U1 (de) 2010-12-01 2011-03-10 Nordex Energy Gmbh Mobiler Montageausleger für eine Windenergieanlage
US8807923B2 (en) 2011-02-07 2014-08-19 Vestas Wind Systems A/S Access apparatus for a wind turbine and method of using same
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