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WO2019215466A1 - Système de lacet séparé pour éoliennes - Google Patents

Système de lacet séparé pour éoliennes Download PDF

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Publication number
WO2019215466A1
WO2019215466A1 PCT/IB2018/000573 IB2018000573W WO2019215466A1 WO 2019215466 A1 WO2019215466 A1 WO 2019215466A1 IB 2018000573 W IB2018000573 W IB 2018000573W WO 2019215466 A1 WO2019215466 A1 WO 2019215466A1
Authority
WO
WIPO (PCT)
Prior art keywords
support plate
wind turbine
bearing section
nacelle
yaw
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.)
Ceased
Application number
PCT/IB2018/000573
Other languages
English (en)
Inventor
Andres Sõnajalg
Oleg Sõnajalg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/IB2018/000573 priority Critical patent/WO2019215466A1/fr
Publication of WO2019215466A1 publication Critical patent/WO2019215466A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • 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
    • 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
    • F05B2240/50—Bearings
    • 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
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • 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
    • 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

  • Current invention relates to the equipment of production and storage of wind power, and more particularly, to the improved structure of the yaw-system used for turning the wind turbine nacelle, more particularly, to the separately assembled yaw-section, which is installed between the upper part of the wind turbine tower and the wind turbine nacelle, and the task of which is to turn the wind turbine rotor in the direction of the wind and to maintain/brake/lock it in an optimal position.
  • Turbines generating electric energy from wind, or wind turbines are widely known in the art by now.
  • a typical wind turbine includes a tower and a nacelle attached to it, which in turn includes a power generator and aerodynamic rotor head to which a wind turbine rotor has been attached.
  • Wind turbine nacelle is attached to the tower via a yaw-bearing in order to turn the nacelle in the horizontal plane in the direction of the wind, or to turn the nacelle together with the blades relative to the tower.
  • the yaw-bearing is a bearing, which has a toothing (toothed rim) installed on its outer or inner collar and to which gear wheels engage, that are fixed to the shafts of the engines that are designed to turn the nacelle.
  • Active yaw systems are equipped with torque-generating devices that are capable of turning the nacelle of the wind turbine relative to the stationary wind turbine tower in the direction of the wind based on the automatic signals from corresponding direction sensors or commands given manually to the control system. Active yaw systems are currently the best-known and most frequently used for medium and large-scale wind turbines. The various components of the active yaw systems vary according to the respective design solutions and the conditions of use for which they are provided.
  • all active yaw systems include a rotating connection between the wind turbine nacelle and the tower (yaw-bearing), an equipment for changing the rotor orientation (in the wind direction), or yaw-drive, an equipment for limiting the turning of the rotor head (yaw-brake), and a control system that processes signals from wind direction sensors and transmits corresponding control signals/commands to control mechanisms.
  • the system employed in active yaw systems is either the yaw-roller-electric yaw- drive-brake or the yaw-roller-bearing hydraulic yaw-drive.
  • the rotor head/wind turbine nacelle is mounted on the roller bearing and the nacelle is moved/rotated relative to the azimuth by a number of powerful electric drives.
  • An electric or hydraulic braking system sets the position of the wind turbine nacelle when the position change is completed. This is necessary for reducing the fatigue load caused by the so-called rebound and the wear of the units and structural parts.
  • These systems are used by most wind turbines as they are considered reliable and efficient. However, these systems are bulky and costly to manufacture. Due to their size and weight, their installation is often challenging.
  • the rotor head/wind turbine nacelle is mounted on the roller bearing and the nacelle is moved/rotated relative to the azimuth by a number of powerful hydraulic motors or hydraulic cylinders.
  • the high power-to-weight ratio and high reliability is regarded as the advantage of these hydraulic drive yaw- systems.
  • the main problem with hydraulic systems is always the leakage of hydraulic fluid and clogging of the high pressure hydraulic valves. Hydraulic yaw systems (depending on the design of the system) often enable to abandon the anti-slip braking mechanism, replacing it with, for example, shut-off valves.
  • Passive yaw systems are normally used in small-scale wind turbines, as the rotor head rotates freely relative to the wind turbine tower. Such a design assumes that the wind turbine has a tail. With regard to the objects of the present invention, passive yaw systems are not relevant.
  • one of the main components of the yaw system is a yaw-bearing, which can be a roller bearing or a friction bearing and which ensures the rotary motion of the wind turbine nacelle relative to the stationary tower of the wind turbine.
  • This yaw-bearing has to take very high loads, which, in addition to the weight of the wind turbine blades and the nacelle, must withstand the bending moment caused to the rotor by the kinetic energy of the wind.
  • the equipment for changing the orientation of the yaw system’s rotor includes powerful electric motors that come with the torque-increasing reduction gear, to actively change the wind turbine nacelle position.
  • the torque of larger wind turbines can reach up to 4000 kNm, with a gear ratio of 1/1500 to 1/1600, plus a 1 :12 tooth rim gear ratio, which means that the rotation speed of the yaw system is relatively slow.
  • the third important component of the yaw system is the wind turbine nacelle braking system, which is needed to stabilize the yaw-roller while turning the wind turbine nacelle.
  • One solution is to use electric motors for braking, giving them a steady small torque to brake the wind turbine nacelle.
  • Wobben Properties GmbH describes the design of a wind turbine that can reduce the load on the yaw-bearings.
  • This wind turbine includes a nacelle with a generator, a tower and a yaw-bearing for turning the nacelle in the direction of the wind.
  • the outer collar of the bearing is attached to the lower flange of the bearing section and the bearing section is fixed to the tower by the inner collar of the bearing.
  • On the inner collar of the bearing there is a internal gearing toothing to which engages a gear wheel that is mounted on the shaft of the motor(s) placed on the bearing section to rotate the wind turbine nacelle relative to the tower.
  • the motors are supported by circular plates, which in turn are attached/fixed to the housing of the bearing section.
  • One support point for the motor is the lower plate and the second support point is on the top plate to which the motor is attached.
  • a disadvantage of this structure is the fact that, by attaching horizontal circular plates to the bearing section housing, a line of stress concentration across the fixing circuit is created, which can cause cracks in the bearing section housing. The reason for this is the fact that when the wind turbine is in operation, the loads are transferred to the housing of the bearing section, resulting in the housing deforming into the oval shape, while the loads due to the structure affect the housing, and the diameter of the housing becomes even again. At the same time, the loads are affecting periodically, so the housing starts moving between the oval and the circle position deviation. As a result, tensions occur on the fixing points of the plates.
  • the braking performance of the motors is important for the rotation of the nacelle with respect to the tower.
  • it relates to situations where the wind turbine must be turned away from the wind to stop the wind turbine, whereupon a real need emerges to brake the nacelle, so that it would not turn again in the direction of the wind.
  • a mechanism for rotating the nacelle is prepared as a separate section, comprising a housing to which the upper and lower flanges are attached, a lower support plate for the motors, and a bearing. Constructing the yaw section separately allows it to be put together beforehand at the factory, and then to transport it to the wind turbine construction site and lift it separately on top of the wind turbine tower. A separately assembled yaw section allows to reduce the weight of the wind turbine nacelle, which is especially important when installing high-power wind turbines where the weight of the sections is not really dependent on how large a wind turbine can be constructed, but whether there is transportation and lifting equipment for lifting the sections to the required height during construction.
  • the bearing section has a top support plate for supporting motors, whereas the upper support plate is set at a fixed distance from the lower flange with spacers, and the motors are attached to the upper support plate. There is a gap between the upper support plate and the bearing section housing, so that the upper support plate does not touch the inner surface of the bearing section housing.
  • Fig. 1 is a wind turbine, which consists of a tower, a wind turbine nacelle attached to the upper part of the tower together with a generator part and rotor head and blades,
  • Fig. 2 is a close-up view of the upper part of the wind turbine tower to display the position of the bearing section used to turn the wind turbine nacelle,
  • Fig 3. shows a cross-sectional view of the bearing section to indicate the position of the motors used to rotate the nacelle in the bearing section; for clarity of the drawing, the fastening elements required for attaching the nacelle and bearing section and the bearing section and the upper part of the tower are not shown; also, for the sake of clarity, the fastening elements for the support plates and the fastening elements for the bearing are not shown;
  • Fig 4. shows a half-cross-sectional view of the bearing section in which is depicted a bearing with a toothing, a lower and upper support plate and a motor with a gear wheel, and a schematic view of the mounting of a bearing section to the upper part of the wind turbine tower;
  • Fig 5. is a sectional view of a bearing section to illustrate the arrangement and fastening of the upper and lower support plate, as well as the fastening of the inner collar of the bearing to the upper flange of the tower, and the fastening of the outer collar of the bearing to the lower support plate, lower flange of the bearing section and upper support plate;
  • Figs. 6A and 6B show a plan view and sectional view of the bearing section, respectively, without motors and a yaw-bearing;
  • Fig. 7 is a plan view of the bearing section in order to illustrate the layout of the openings provided for the attachment elements in the upper flange of the bearing section and the layout of the openings provided for attaching the motors;
  • Fig. 8 is a partial cross-sectional view of the bearing section to illustrate the layout of the openings for the fastening elements in the upper support plate;
  • Fig. 9 is displays the enlarged view shown in Fig. 8 to further illustrate the essential feature of the invention in which there is an air gap between the upper support plate and the bearing section housing 71 to compensate for changes in the shape of the bearing section in the operation of the wind turbine; in particular the shape of the bearing section housing changes between the oval and the circular as a result of the forces exerted by the wind to the blades;
  • Fig. 10 is a top view of the upper support plate
  • Fig. 11 is the bearing section, in particular the lower support plate of the bearing section as seen from below.
  • Fig. 1 shows a wind turbine (tower, nacelle, rotor, rotor head, blades), together with the upper section 2 of the wind turbine tower, which is typically attached to a wind turbine nacelle 3, comprising a main body 4 containing an electric generator, a rotor head 5 to which wind turbine blades 51 are attached, while the rotor head is connected to the wind turbine rotor.
  • a yaw-system bearing section 7 installed between the wind turbine nacelle and the tower for turning the wind turbine nacelle in relation to the wind turbine tower.
  • Fig. 2 displays also the yaw- bearing 6 of the yaw-system mounted on top of the uppermost section of the wind turbine tower and the yaw-system bearing section 7.
  • Fig. 1 shows a wind turbine (tower, nacelle, rotor, rotor head, blades), together with the upper section 2 of the wind turbine tower, which is typically attached to a wind turbine nacelle 3, comprising a main body 4 containing an
  • FIG. 3 is a cross-sectional view of the yaw-system bearing section, which shows the inner collar 8 of the yaw- bearing, to which a toothing 80 with an inner engagement is secured, engaging a gear wheel 90 attached to the reduction gear shaft 92 of the electric drive 9.
  • the electric drives (motors) for rotation of the nacelle rest upon the upper support plate and the electric drive reduction gears rest on the lower support plate, thus ensuring the fastening of the electric drive with two support surfaces, which allows the electric drives to be used in addition to the rotation of the nacelle to also stop the nacelle, or to keep the wind turbine in the direction of the wind.
  • the wind turbine nacelle is fastened to the upper flange 10 of the bearing system 7 of the yaw-system by means of stud bolts, whereas the stud bolts are screwed into the upper flange 10 of the bearing section 7 before the assembly and, upon the assembly of the wind turbine the wind turbine nacelle 3 is lifted beforehand to the yaw-section previously mounted on the tower so that the stud bolts attached previously to the bearing section pass through the openings drilled in the lower flange of the wind turbine nacelle.
  • Appropriate washers and nuts are installed on the stud bolts to fasten the wind turbine nacelle against the bearing section.
  • a through hole 34 is formed to create a common space with the bearing section and nacelle, so that the service staff of the wind turbine could move freely within the bearing section and the nacelle.
  • a lower flange 11 is fastened (welded) to the lower part of the cylindrical housing of the bearing section 7, provided with the openings 15 for fasteners to fasten the flange 11 (as well as the bearing section) to the outer collar 61 of the yaw-bearing. Flere the stud bolts are secured to the threaded openings drilled in the outer collar of the yaw-bearing.
  • the housing of the bearing section 7 is assembled with the upper part of the wind turbine tower, while allowing the wind turbine nacelle to be rotated relative to the stationary static wind turbine tower.
  • a top support plate 12 is mounted and secured in the bearing section to the lower flange 11 of the bearing section.
  • the lower support plate 13 is arranged between the lower flange 11 of the bearing section and the outer collar 61 of the yaw- bearing. Between the lower 13 and the upper support plate 12, there are spacers 19, 20 with through openings 18 (for mounting bolts) arranged during the assembly of the yaw-system bearing section, that are used to maintain a constant distance between the upper 12 and the lower support plate 13. This is necessary for attaching the electric drives with reduction gears required for rotating the yaw- system to the upper and lower support plates while maintaining the stiffness of the support plates.
  • the inner spacers 19 remain on the inner edge of the support plates, at the edge to the centre of the tower, and the outer spacers 20 remain on the outside edge of the support plates, on the edge to the side of the bearing section housing.
  • the engine with the reducer has two support points - one is the contact surface of the engine mounting flange and the upper support plate, and the other is the contact surface of the motor reducer and the lower support plate opening.
  • This design makes the electric drive attachment more stable laterally, as the electric drive is supported by two support points: attachment of the electric drive mounting flange and upper support plate and attachment of the end of the electric drive reducer to the lower support plate step.
  • the lateral torsional torque of the electric drive can be reduced in the upper supporting plate and the electric drive flange attachment that occurs when the electric drive power starts and begins to rotate the wind turbine or when the wind turbine rotor head is turned in the direction of the wind, and the yaw-system unit must keep the nacelle position stable (to brake).
  • the lower support plate rests on the outer collar of the bearing section yaw- bearing and its diameter corresponds to the outer diameter of the bearing section housing.
  • the diameter of the upper support plate 12 is smaller than the inner diameter of the bearing section 7 housing in such a way that the air gap S remains between the edge of the support plate and the inner wall of the housing.
  • a flange 30 attached (welded) to the upper part of the tower 2, having openings for fasteners distributed across the perimeter, by which the inner collar 8 of the bearing section yaw-bearing is attached to the flange.
  • an inner collar 8 of the yaw-bearing 6 resting on the flange 30 of the upper part of the tower where there are threaded openings for the fastening means (stud bolt 28, nut 29), which secure/fasten the inner collar of the bearing to the flange 30 when attaching the bearing section 7 to the upper end of the tower 2.
  • the outer collar of the yaw-bearing supports the lower plate of the bearing section 13 and this in turn supports the lower flange 11 attached to the bearing section 7 housing together with the bearing section housing. There are also openings extending along the perimeter of the flange for fastening means to attach the bearing section to the outer collar of the bearing.
  • the outer spacers 20 are first placed on the lower flange 11 of the bearing section, which hold the upper support plate at a fixed distance from the lower support plate and provide the motor reduction gear with fit connection with the lower support plates. Spacers 20 in turn support the upper support plate 12.
  • the upper support plate 12, flange 11 and lower support plate 13 are pulled by means of fasteners (stud bolt 26, nut 27) onto the outer collar of the yaw-bearing.
  • the height of the bearing section is designed in such a way that it is possible to accommodate the controls and necessary cabling for motors used to rotate the nacelle and to allow people freely stand in the bearing section.

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  • 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 un système de lacet utilisé pour faire tourner la nacelle d'une éolienne qui est assemblé sous la forme d'une section séparée, qui est montée séparément sur la bride supérieure de la tour d'éolienne. La nacelle de turbine éolienne avec le générateur, la tête de rotor et les pales est ensuite fixée au système de lacet. Le système de lacet comprend une section de support comprenant un boîtier auquel sont fixées les brides supérieure et inférieure, une plaque de support inférieure pour les moteurs, et un palier de lacet. La section de support a une plaque de support supérieure pour supporter les moteurs, tandis que la plaque de support supérieure est fixée à une distance fixe de la bride inférieure et de la plaque de support inférieure au moyen d'entretoises, avec l'espace d'air situé entre les plaques de support supérieures et le boîtier de section de support.
PCT/IB2018/000573 2018-05-08 2018-05-08 Système de lacet séparé pour éoliennes Ceased WO2019215466A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/000573 WO2019215466A1 (fr) 2018-05-08 2018-05-08 Système de lacet séparé pour éoliennes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2018/000573 WO2019215466A1 (fr) 2018-05-08 2018-05-08 Système de lacet séparé pour éoliennes

Publications (1)

Publication Number Publication Date
WO2019215466A1 true WO2019215466A1 (fr) 2019-11-14

Family

ID=62816882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/000573 Ceased WO2019215466A1 (fr) 2018-05-08 2018-05-08 Système de lacet séparé pour éoliennes

Country Status (1)

Country Link
WO (1) WO2019215466A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111980862A (zh) * 2020-09-02 2020-11-24 大庆安鼎风电技术服务有限责任公司 一种海上风机发电机组设备
US20220025872A1 (en) * 2018-12-07 2022-01-27 Wobben Properties Gmbh Wind power plant with supporting structure
US11384729B2 (en) * 2016-05-11 2022-07-12 Crossed Arrows Ranch, Inc. Wind turbine
EP4163490A1 (fr) * 2021-10-06 2023-04-12 Siemens Gamesa Renewable Energy A/S Ensemble lacet d'éolienne
EP4596870A1 (fr) * 2024-01-31 2025-08-06 Kodair Wind Designs Limited Système d'entraînement en lacet
USD1099034S1 (en) 2021-12-21 2025-10-21 Kodair Wind Designs Limited Wind turbine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120134841A1 (en) * 2011-12-09 2012-05-31 General Electric Company Yaw bearing assembly and tower for wind turbine
WO2014072157A1 (fr) * 2012-11-09 2014-05-15 Wobben Properties Gmbh Éolienne
EP3242013A1 (fr) * 2016-05-04 2017-11-08 Nordex Energy GmbH Éolienne comprenant un dispositif destine a faire tourner une nacelle de l'eolienne et procede de montage d'un dispositif destine a faire tourner une nacelle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120134841A1 (en) * 2011-12-09 2012-05-31 General Electric Company Yaw bearing assembly and tower for wind turbine
WO2014072157A1 (fr) * 2012-11-09 2014-05-15 Wobben Properties Gmbh Éolienne
EP3242013A1 (fr) * 2016-05-04 2017-11-08 Nordex Energy GmbH Éolienne comprenant un dispositif destine a faire tourner une nacelle de l'eolienne et procede de montage d'un dispositif destine a faire tourner une nacelle

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11384729B2 (en) * 2016-05-11 2022-07-12 Crossed Arrows Ranch, Inc. Wind turbine
US20220025872A1 (en) * 2018-12-07 2022-01-27 Wobben Properties Gmbh Wind power plant with supporting structure
US11788514B2 (en) * 2018-12-07 2023-10-17 Wobben Properties Gmbh Wind power plant with supporting structure
CN111980862A (zh) * 2020-09-02 2020-11-24 大庆安鼎风电技术服务有限责任公司 一种海上风机发电机组设备
CN111980862B (zh) * 2020-09-02 2023-05-12 大庆安鼎风电技术服务有限责任公司 一种海上风机发电机组设备
EP4163490A1 (fr) * 2021-10-06 2023-04-12 Siemens Gamesa Renewable Energy A/S Ensemble lacet d'éolienne
USD1099034S1 (en) 2021-12-21 2025-10-21 Kodair Wind Designs Limited Wind turbine
USD1099032S1 (en) 2021-12-21 2025-10-21 Kodair Wind Designs Limited Wind turbine
USD1099033S1 (en) 2021-12-21 2025-10-21 Kodair Wind Designs Limited Wind turbine
USD1099837S1 (en) 2021-12-21 2025-10-28 Kodair Wind Designs Limited Wind turbine
USD1099838S1 (en) 2021-12-21 2025-10-28 Kodair Wind Designs Limited Wind turbine
EP4596870A1 (fr) * 2024-01-31 2025-08-06 Kodair Wind Designs Limited Système d'entraînement en lacet

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