US20120304588A1 - Method for Erecting a Wind Turbine Tower - Google Patents
Method for Erecting a Wind Turbine Tower Download PDFInfo
- Publication number
- US20120304588A1 US20120304588A1 US13/577,470 US201113577470A US2012304588A1 US 20120304588 A1 US20120304588 A1 US 20120304588A1 US 201113577470 A US201113577470 A US 201113577470A US 2012304588 A1 US2012304588 A1 US 2012304588A1
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- tower
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- wind turbine
- welding
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- 238000003466 welding Methods 0.000 claims description 27
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/344—Arrangements for lifting tower sections for placing additional sections under them
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- 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
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
- F03D13/112—Assembly of wind motors; Arrangements for erecting wind motors of towers; of masts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
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- 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
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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- 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
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
- F03D13/139—Assembling or erecting wind motors by using lifting means
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- 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
- 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
- F03D13/22—Foundations specially adapted 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
-
- 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
- F03D80/70—Bearing or lubricating arrangements
-
- 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
- F03D13/201—Towers
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- 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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
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- 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
- F05B2230/20—Manufacture essentially without removing material
- F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
- F05B2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
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- 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
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- 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
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- 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
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- 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
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- 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
- the present invention concerns a wind turbine and a method to erect the tower of a wind turbine in accordance with the claims.
- a wind turbine tower usually consists of large sections, typically twenty meters long, which are moved by truck, boat or similar to the erection site of the wind turbine. Tower sections usually have a width that requires escort by service vehicles and police when they are transport on roads.
- a tower made up of prefabricated segments will limit the tower's maximum building height. This is caused by the fact that lower sections of a higher tower, are larger in diameter. The tower will be increasingly difficult to transport with respect to the tower's height.
- the problem here is that it is difficult to ensure that the tightening of the above mentioned fasteners is performed with adequate torque. Inadequate tightening can in the worst case cause a section to loosen which in turn may result in total tower failure with the possibly of disastrous consequences.
- This type of design is also expensive to manufacture and is not as structurally sound as for example towers with welded sections. From a stress and fatigue standpoint, welded tower sections are preferable to other types of designs.
- Patent GB2413367 describes for example a tower for a wind turbine that is arranged to rotate in its lower section.
- the design according to GB2413367 does not include segments that consist of at least one first mantle part and at least one second mantle part in the same manner as the present invention. Further this design does not include a bearing such as a slewing bearing, slewing ring or similar as does the present invention. This design differs in substantial ways from the present invention.
- Patent US2009090069 describes the construction of a tower for a wind turbine.
- the tower is erected in several segments in the tower's axial direction.
- Each respective segment consists of panels which are connected with the aid of a fixture or similar not connected to the tower.
- the panels of each segment are mounted together in a fixture at a place to the side of the tower and the panels are not joined together in the tower's lower part during erection, as is done in the present invention.
- the different sections of the design's tower are bolted together which differs greatly from the present invention, which utilizes welding to join together its segments and sections.
- the design according to patent US2009090069 is much more costly to manufacture and erect than the present invention.
- US20090087311 describes a method for constructing and operating a wind turbine.
- the method described uses an external lifting system to lift the tower sections and nacelle in the vertical direction.
- This design is dependent on several guide rails mounted externally along the entire length of the tower for the lifting mechanism to be able to lift the nacelle to the top of the tower, which differs substantially from the present invention.
- the nacelle includes a tower penetrating hole which is penetrated by its tower according to the description in US20090087311, and this also differs substantially from the present invention.
- This design further includes entirely prefabricated tower sections that are joined together by bolts during their erection, unlike the present invention that utilizes welding to join its mantle plates together during its erection.
- the main purpose of the present invention is to achieve a new type of wind turbine which can in a more cost effective manner be manufactured and erected than previously known structures.
- a further purpose of the present invention is to provide a method for erecting (building) wind turbine towers that is more efficient than existing designs.
- a yet further purpose of the present invention is to provide a wind turbine which is pivotally arranged in its lower part in relation to the tower's vertical axis.
- FIGS. 1A and 1B show a wind turbine in accordance with the present invention.
- FIGS. 2-8 show the sequential erection of a wind turbine tower.
- the wind turbine 1 includes at least one tower 2 and at least one base foundation 3 .
- the tower is arranged to rotate around a rotational axis 4 in the tower's 2 axial direction.
- the tower has an upper end (top) 5 and a lower end 6 .
- the tower 2 includes at least one internal space (not shown in the figures).
- the tower 2 is preferably erected on a base foundation 3 which is constructed in accordance with previously known or hereafter developed, design and construction techniques.
- the tower 2 is preferably arranged to rotate via at least one bearing 7 or similar.
- the tower 2 is via a bearing 7 pivotally arranged relative the base foundation 3 in the tower's axial direction.
- the tower 2 includes an upper segment 8 and a bottom segment 9 which via at least one bearing 7 are pivotally arranged in relation to one another.
- the lower segment 9 of the tower 2 is preferably permanently arranged relative the base foundation and the upper segment 8 of the tower 2 is pivotally arranged in relation to the fixed lower segment 9 of the tower 2 or alternatively the base foundation 3 or both in the tower's axial direction.
- the bearing 7 in the preferred embodiment consists of at least one slewing bearing, slewing ring or the like.
- the slewing bearing (slewing ring) is preferably permanently mounted in the base foundation or in the lower segment 9 of the tower.
- the tower is rotated relative the slewing bearing (slewing ring) using at least one slewing gear (not shown in the figures) or similar.
- the rotation of the tower or the tower's upper segment in alternative embodiments may be achieved with other technology suitable for this purpose.
- the tower 2 is at its top 5 , or the top's vicinity, equipped with at least one nacelle (housing) 10 or the like.
- the nacelle 10 has at least one rotor with an accompanying propeller (not shown in the figures) that is bearingly arranged.
- the rotor is bearingly arranged around an essentially horizontal axis.
- it is conceivable that the rotor is bearingly arranged around an axis that differs from an essentially horizontal direction.
- the propeller propels via the rotor, or other power transferring body, at least one power generating unit which generates electrical energy.
- the power generating unit includes at least one generator.
- the rotor transfers torque directly to the generator.
- the power generating unit may include at least one gearbox or the like.
- the electric energy generated by the generator is intended to be transferred to at least one consumer, at least one power grid or the like. The transfer of electrical energy is accomplished in accordance with known technology and this is why it is not described in more detail in this patent application.
- FIGS. 2-8 show sequentially how the wind turbine's tower 2 is erected.
- the tower 2 is built in sections 11 on-site, the place where the tower is to be erected.
- the tower is erected by sections 11 of the tower 2 being assembled sequentially in the tower's 2 lower end 6 and then sequentially erected upwards in a vertical direction. Section 11 after section 11 are completed sequentially and united with the previously united sections 11 until the desired height of the tower is obtained.
- the tower 2 or alternatively the tower's upper segment 8 or alternatively the intermediate segment or segments are connected (secured) to the bearing 7 .
- the nacelle is lifted into place before the tower is erected in its entire axial length.
- the nacelle is lifted into place after a few sections have been completed. After the nacelle has been lifted into place it is joined (mounted) to the tower. The nacelle is lifted into place at a height on the tower where the nacelle does not hinder the process of joining the sections of the lower end of the tower.
- FIGS. 2 and 3 show that each section 11 (segments) consist of at least one first mantle part 12 and at least one second mantle part 13 .
- the first mantle part 12 and the second mantle part 13 are joined, alternatively connected, to each other during the formation of a section (revolution).
- Each section preferably forms a cylinder.
- the cylinder's diameter may vary according to the cylinder's axial direction.
- the mantle parts consist preferably of plates which are formed by bending, roller bending, or with another suitable for the purpose known techniques.
- the mantel plates (mantle parts) have preferably a radial or similar form.
- mantle plates may be of a different form suitable for the purpose, such as elliptical or other form (shape) suitable for the purpose.
- the form (shape) of the sections may thus deviate from an essentially cylindrical shape (form).
- mantle plates may vary widely within the scope of the present invention.
- the number and dimensions of the mantle plates depend on the tower's height and diameter (at the circular cross section) or another form of the tower's cross section.
- the dimensions of the mantle plates are also accordingly adjusted in regards to transportation considerations involved in transporting these plates to the erection site.
- FIGS. 4-6 show how the exemplary first mantle plate 12 and the second mantle plate 13 are joined to each other with at least one vertical weld seam 14 .
- FIG. 4 shows how one first vertical weld seam is welded. All vertical seams 14 between the mantle plates, included in a section, are welded together. Welding is carried out by at least one welding outfit (at least one welding tip or the like) 15 being moved in the vertical direction. The welding of vertical weld seams 14 may be carried out in the open air but is preferably accomplished in a sheltered enclosure that connects to the tower 2 .
- a shelter from weather conditions may consist of at least one tent or other temporary structure or similar located adjacent to, or in close proximity to the tower.
- one first vertical seam 15 is welded in accordance with FIG. 4 .
- the tower is rotated in accordance with arrow 16 , or in the opposite direction, as shown in FIG. 5 .
- at least one second vertical weld seam 14 is then welded as shown in FIG. 6 . It is conceivable that more than one vertical weld seam is welded simultaneously. Welding is carried out according to previously known art and techniques and this is why it is not described in more detail in this patent application.
- FIG. 7 shows how two sections are joined with at least one horizontal weld seam 17 .
- the essentially horizontal weld seams 17 which joins the sections together, it is done preferably by the tower being rotated around the tower's axial direction in accordance with arrow 16 or in the opposite direction.
- the welding outfit can thus be connected in a stationary position.
- the welding of the weld seam 17 is accomplished with the tower 2 standing stationary and with welding equipment (outfit) that moves around the tower. It is also conceivable that both the welding outfit and the tower move around the tower's 2 axial direction in connection with welding.
- the welding of horizontal weld seams 17 can be done in the open but occurs preferably in a sheltered space (enclosure) that connects to the tower.
- a shelter from weather conditions may for example consist of at least one tent or at least one other temporary structure connected to the tower. Welding is carried out according to previously known art and techniques and this is why it is not described in more detail in this patent application.
- FIG. 8 shows that after a section is completed and joined (assembled) to previously completed sections (revolutions) the tower is erected in a vertical direction. This erection is carried out with the aid of at least one lifting body 18 and preferably several lifting bodies 18 .
- the lifting bodies 18 consist of lifting devices whose length may be adjusted.
- the lifting bodies 18 are in their one end 19 connected to the tower, or tower's upper part.
- the lifting bodies 18 are in their second end 20 connected to the base foundation or, alternatively, the tower's lower part.
- the lifting body 18 in the preferred embodiment consists of ball screws or the like. In alternative embodiments the lifting body 18 may consist of hydraulic jacks or other for the purpose suitable devices.
- Surface treatment may also be carried out when the tower rotates in conjunction with its initial construction or during subsequent maintenance.
- Surface treatment of the tower may even be performed in the open, but treatment is preferably carried out in a weather shielding shelter or the like.
- a shelter from weather conditions may for example consist of at least one tent or at least one temporary structure adjacent the tower.
- At least one supporting device such as a strut or similar (not shown in the figures) is preferably used, which in its one end is placed against the ground or the like and which in its other end is placed against the tower (preferably a distance up the tower).
- the strut (struts, braces) or the like is removed after the tower is completely erected.
- the tower in alternative embodiments is united (joined) together with another for the purpose suitable unifying (joining) method.
- the wind turbine's tower and nacelle are built so that the propeller is placed behind the tower in relation to wind direction. The wind passes through the tower first and then the propeller.
- the wind turbine provides logistical advantages such as less bulky transports to the erection site.
- the tower's included parts are significantly smaller than the prefabricated tower sections that are currently used in wind turbine towers.
- the tower's included parts may be prefabricated closer to erection site without requiring a specific facility for the manufacture of tower sections.
- a further advantage is that the tower's shape can be optimized in relation to wind flow.
- Yet another important advantage of the present invention is that it reduces considerably the number of bolt joints necessary to erect the tower.
- the fact that the tower sections of the present invention are welded together means the elimination of bolt joints along the tower's elongated body, which allows for a longer life span and greater strength for the tower as well as facilitating its erection and the lifting of components to the top of the tower.
- the advantage of a longer life span for the tower of the present invention allows for components such as the generator, propeller and the like to be replaced when they are either worn out or no longer as effective as newer designs without having to construct a new tower, which reduces investment costs considerably.
Abstract
The present invention concerns a wind turbine (1) including at least one tower (2), at least one base foundation (3), at least one nacelle (10) and at least one propeller (4). The propeller via its rotation turns at least one essentially horizontal axel that drives at least one generator. The wind turbine's uniqueness comes from its tower (2), via at least one bearing (7), being pivotally arranged around an axis of rotation in the tower's (2) axial direction. The present invention also concerns a method for erecting the wind turbine's tower (2). Unique to the method for erecting the tower is that the tower is joined together by sections (11), comprised of at least one first mantle plate (12) and at least one second mantle plate (13), which are sequentially assembled at the erection site on the tower's lower end (6). When the mantle plates (12, 13) in a section (11) are joined together with each other, the section (11) is then united with previously joined sections (11) in the tower's lower end (6). After each respective section (11) is joined with the tower's (2) previously united sections (11), the tower (2) is erected in the vertical direction with at least one, and preferably several, lifting bodies (18). After the required height of the tower is obtained, the tower, alternatively the tower's upper part, is secured to a bearing (7) or alternatively to an intermediate part or several intermediate parts connected to the bearing (7).
Description
- The present invention concerns a wind turbine and a method to erect the tower of a wind turbine in accordance with the claims.
- The continuing transition toward renewable energy sources, caused by, among other things, the dwindling supply of oil and the global environmental crisis (climate change), has resulted in an accelerated pace of construction of wind turbines that has never been higher than it is today. The current costs incurred in erecting a wind turbine are considerable and constitute a limiting constraint on the rate of development of wind power. There is therefore a great need for a wind turbine that has a design that allows the wind turbine to be produced and erected in a more cost efficient manner than previously known designs of wind turbines.
- That the costs of erecting wind turbines (current known types of designs) are high depend on a number of different reasons. First, wind turbines are especially expensive to construct because their components are manufactured at a production facility and then moved (transported) over long distances to the place where the wind turbine is to be erected. A wind turbine tower usually consists of large sections, typically twenty meters long, which are moved by truck, boat or similar to the erection site of the wind turbine. Tower sections usually have a width that requires escort by service vehicles and police when they are transport on roads.
- The bulky size of a wind turbine's prefabricated components also restricts the sites that are possible to exploit for erecting wind turbines without having to establish costly roads and the like. When erecting wind turbines in places such as mountain tops, hilly terrain or the like, it is difficult and costly to build the necessary roads and other infrastructure.
- The prefabrication of a wind turbine tower in sections at factory facilities is also limiting in other aspects. For example, a tower made up of prefabricated segments will limit the tower's maximum building height. This is caused by the fact that lower sections of a higher tower, are larger in diameter. The tower will be increasingly difficult to transport with respect to the tower's height.
- A further reason why tower sections are manufactured at one location and then moved to the erection site is that welding should preferably be carried out in weather-protected areas, so that the welding seams attain a high level of quality. Similar problems also apply to painting and other surface finishing of the tower.
- Another reason that existing wind turbines are expensive to construct is caused by the fact that during their erection it is costly to lift components such as the upper sections of the tower, the nacelle (housing), the propeller blades and other components to the upper part of the wind turbine. The tower's height is limited to a large extent by the cranes that lift the components to the top of the tower, which may exceed a height of 80 meters above ground. Mobile cranes with this height lifting capacity are expensive both to own and operate so there are only a small number of mobile cranes which have the ability to lift components to this height. Because these cranes are few in number it usually takes considerable time to plan and transport a mobile crane with sufficient capacity to the location of the wind turbine erection site which results in considerable costs. There is therefore a need for a more cost effective method of lifting components to the top of the tower.
- A further problem with towers of previously existing wind turbines being built in sections, is that each section is usually dependent on blank rings, flanges and the like which are held together with screws, bolts or other similar torque dependent fasteners often called bolt joining or bolt screwing. The problem here is that it is difficult to ensure that the tightening of the above mentioned fasteners is performed with adequate torque. Inadequate tightening can in the worst case cause a section to loosen which in turn may result in total tower failure with the possibly of disastrous consequences. This type of design is also expensive to manufacture and is not as structurally sound as for example towers with welded sections. From a stress and fatigue standpoint, welded tower sections are preferable to other types of designs.
- Yet another problem with so called bolt joining or bolt screwing of a wind turbine tower's sections is that this type of joining reduces considerably the towers life span compared with a tower with sections that are welded together. Bolt joining or bolt screwing is also much more costly compared with welding. It is obvious that there exits a need for better methods of wind tower erection.
- Structures designed to extract energy from the wind by means of blades or propellers are already known. For example, windmills and wind turbines that are arranged to turn in their lower parts are previously known. Patent GB2413367 describes for example a tower for a wind turbine that is arranged to rotate in its lower section. The design according to GB2413367 does not include segments that consist of at least one first mantle part and at least one second mantle part in the same manner as the present invention. Further this design does not include a bearing such as a slewing bearing, slewing ring or similar as does the present invention. This design differs in substantial ways from the present invention.
- Patent US2009090069 describes the construction of a tower for a wind turbine. The tower is erected in several segments in the tower's axial direction. Each respective segment consists of panels which are connected with the aid of a fixture or similar not connected to the tower. The panels of each segment are mounted together in a fixture at a place to the side of the tower and the panels are not joined together in the tower's lower part during erection, as is done in the present invention. Furthermore, the different sections of the design's tower are bolted together which differs greatly from the present invention, which utilizes welding to join together its segments and sections. The design according to patent US2009090069 is much more costly to manufacture and erect than the present invention. It also has the disadvantage that it is difficult to ensure that the tightening of its bolts is performed with adequate torque. The design described in US2009090069 differs substantially in both its fabrication and method of erection compared with the present invention's design and erection method.
- US20090087311 describes a method for constructing and operating a wind turbine. The method described uses an external lifting system to lift the tower sections and nacelle in the vertical direction. This design is dependent on several guide rails mounted externally along the entire length of the tower for the lifting mechanism to be able to lift the nacelle to the top of the tower, which differs substantially from the present invention. Furthermore the nacelle includes a tower penetrating hole which is penetrated by its tower according to the description in US20090087311, and this also differs substantially from the present invention. This design further includes entirely prefabricated tower sections that are joined together by bolts during their erection, unlike the present invention that utilizes welding to join its mantle plates together during its erection. Another significant difference in the design according to US20090087311 compared with the present invention is that it does not include for example a slewing bearing in the lower part of its tower which allows the tower to turn. This design is significantly costlier to manufacture, transport and erect than the present invention.
- The main purpose of the present invention is to achieve a new type of wind turbine which can in a more cost effective manner be manufactured and erected than previously known structures. A further purpose of the present invention is to provide a method for erecting (building) wind turbine towers that is more efficient than existing designs. A yet further purpose of the present invention is to provide a wind turbine which is pivotally arranged in its lower part in relation to the tower's vertical axis.
- The invention will be described in greater detail below with reference to the accompanying schematic drawings that in an exemplifying purpose show the current preferred embodiments of the invention.
-
FIGS. 1A and 1B show a wind turbine in accordance with the present invention. -
FIGS. 2-8 show the sequential erection of a wind turbine tower. - With reference to the figures is shown a wind turbine 1 in accordance with the present patent application. The wind turbine 1 includes at least one
tower 2 and at least onebase foundation 3. The tower is arranged to rotate around arotational axis 4 in the tower's 2 axial direction. The tower has an upper end (top) 5 and alower end 6. Thetower 2 includes at least one internal space (not shown in the figures). Thetower 2 is preferably erected on abase foundation 3 which is constructed in accordance with previously known or hereafter developed, design and construction techniques. - The
tower 2 is preferably arranged to rotate via at least onebearing 7 or similar. In the exemplifying embodiment of the wind turbine 1 shown inFIG. 1A , thetower 2 is via abearing 7 pivotally arranged relative thebase foundation 3 in the tower's axial direction. In the alternative embodiment shown inFIG. 1B , thetower 2 includes anupper segment 8 and abottom segment 9 which via at least onebearing 7 are pivotally arranged in relation to one another. Thelower segment 9 of thetower 2 is preferably permanently arranged relative the base foundation and theupper segment 8 of thetower 2 is pivotally arranged in relation to the fixedlower segment 9 of thetower 2 or alternatively thebase foundation 3 or both in the tower's axial direction. - The
bearing 7 in the preferred embodiment consists of at least one slewing bearing, slewing ring or the like. The slewing bearing (slewing ring) is preferably permanently mounted in the base foundation or in thelower segment 9 of the tower. The tower is rotated relative the slewing bearing (slewing ring) using at least one slewing gear (not shown in the figures) or similar. The rotation of the tower or the tower's upper segment in alternative embodiments may be achieved with other technology suitable for this purpose. - The
tower 2 is at its top 5, or the top's vicinity, equipped with at least one nacelle (housing) 10 or the like. Thenacelle 10 has at least one rotor with an accompanying propeller (not shown in the figures) that is bearingly arranged. Preferably, the rotor is bearingly arranged around an essentially horizontal axis. In alternative embodiments, it is conceivable that the rotor is bearingly arranged around an axis that differs from an essentially horizontal direction. - The propeller propels via the rotor, or other power transferring body, at least one power generating unit which generates electrical energy. The power generating unit includes at least one generator. Preferably the rotor transfers torque directly to the generator. In alternative embodiments, the power generating unit may include at least one gearbox or the like. The electric energy generated by the generator is intended to be transferred to at least one consumer, at least one power grid or the like. The transfer of electrical energy is accomplished in accordance with known technology and this is why it is not described in more detail in this patent application.
-
FIGS. 2-8 show sequentially how the wind turbine'stower 2 is erected. In the preferred embodiment of the present invention thetower 2 is built insections 11 on-site, the place where the tower is to be erected. The tower is erected bysections 11 of thetower 2 being assembled sequentially in the tower's 2lower end 6 and then sequentially erected upwards in a vertical direction.Section 11 aftersection 11 are completed sequentially and united with the previouslyunited sections 11 until the desired height of the tower is obtained. After the desired height of thetower 2 is achieved, thetower 2 or alternatively the tower'supper segment 8 or alternatively the intermediate segment or segments are connected (secured) to thebearing 7. The nacelle is lifted into place before the tower is erected in its entire axial length. Preferably the nacelle is lifted into place after a few sections have been completed. After the nacelle has been lifted into place it is joined (mounted) to the tower. The nacelle is lifted into place at a height on the tower where the nacelle does not hinder the process of joining the sections of the lower end of the tower. -
FIGS. 2 and 3 show that each section 11 (segments) consist of at least onefirst mantle part 12 and at least onesecond mantle part 13. Thefirst mantle part 12 and thesecond mantle part 13 are joined, alternatively connected, to each other during the formation of a section (revolution). Each section preferably forms a cylinder. The cylinder's diameter may vary according to the cylinder's axial direction. The mantle parts consist preferably of plates which are formed by bending, roller bending, or with another suitable for the purpose known techniques. The mantel plates (mantle parts) have preferably a radial or similar form. In alternative embodiments the mantle plates (mantle parts) may be of a different form suitable for the purpose, such as elliptical or other form (shape) suitable for the purpose. The form (shape) of the sections may thus deviate from an essentially cylindrical shape (form). - The number and dimensions of mantle parts (mantle plates) may vary widely within the scope of the present invention. The number and dimensions of the mantle plates depend on the tower's height and diameter (at the circular cross section) or another form of the tower's cross section. The dimensions of the mantle plates are also accordingly adjusted in regards to transportation considerations involved in transporting these plates to the erection site.
-
FIGS. 4-6 show how the exemplaryfirst mantle plate 12 and thesecond mantle plate 13 are joined to each other with at least onevertical weld seam 14.FIG. 4 shows how one first vertical weld seam is welded. Allvertical seams 14 between the mantle plates, included in a section, are welded together. Welding is carried out by at least one welding outfit (at least one welding tip or the like) 15 being moved in the vertical direction. The welding of vertical weld seams 14 may be carried out in the open air but is preferably accomplished in a sheltered enclosure that connects to thetower 2. A shelter from weather conditions may consist of at least one tent or other temporary structure or similar located adjacent to, or in close proximity to the tower. More specifically, one firstvertical seam 15 is welded in accordance withFIG. 4 . Then the tower is rotated in accordance witharrow 16, or in the opposite direction, as shown inFIG. 5 . After the tower is rotated, at least one secondvertical weld seam 14 is then welded as shown inFIG. 6 . It is conceivable that more than one vertical weld seam is welded simultaneously. Welding is carried out according to previously known art and techniques and this is why it is not described in more detail in this patent application. -
FIG. 7 shows how two sections are joined with at least onehorizontal weld seam 17. During the welding of the essentially horizontal weld seams 17, which joins the sections together, it is done preferably by the tower being rotated around the tower's axial direction in accordance witharrow 16 or in the opposite direction. The welding outfit can thus be connected in a stationary position. In alternative embodiments, it is conceivable that the welding of theweld seam 17 is accomplished with thetower 2 standing stationary and with welding equipment (outfit) that moves around the tower. It is also conceivable that both the welding outfit and the tower move around the tower's 2 axial direction in connection with welding. The welding of horizontal weld seams 17 can be done in the open but occurs preferably in a sheltered space (enclosure) that connects to the tower. A shelter from weather conditions may for example consist of at least one tent or at least one other temporary structure connected to the tower. Welding is carried out according to previously known art and techniques and this is why it is not described in more detail in this patent application. -
FIG. 8 shows that after a section is completed and joined (assembled) to previously completed sections (revolutions) the tower is erected in a vertical direction. This erection is carried out with the aid of at least one liftingbody 18 and preferably several liftingbodies 18. The liftingbodies 18 consist of lifting devices whose length may be adjusted. The liftingbodies 18 are in their oneend 19 connected to the tower, or tower's upper part. The liftingbodies 18 are in theirsecond end 20 connected to the base foundation or, alternatively, the tower's lower part. The liftingbody 18 in the preferred embodiment consists of ball screws or the like. In alternative embodiments the liftingbody 18 may consist of hydraulic jacks or other for the purpose suitable devices. - Surface treatment may also be carried out when the tower rotates in conjunction with its initial construction or during subsequent maintenance. Surface treatment of the tower may even be performed in the open, but treatment is preferably carried out in a weather shielding shelter or the like. A shelter from weather conditions may for example consist of at least one tent or at least one temporary structure adjacent the tower.
- During the erection of the tower at least one support, at least one supporting device such as a strut or similar (not shown in the figures) is preferably used, which in its one end is placed against the ground or the like and which in its other end is placed against the tower (preferably a distance up the tower). The strut (struts, braces) or the like is removed after the tower is completely erected.
- In the detailed description of the present invention, design details may have been omitted which are apparent to persons skilled in the art. Such obvious design details are included to the extent necessary so that the proper and full performance of the present invention is achieved. For example, cables (wires, lines) or similar are included to the extent necessary so that an adequate function of the wind turbine is obtained. Furthermore, it is assumed that adequate plate thicknesses are used to ensure that proper durability of the tower is obtained.
- Even if certain preferred embodiments have been described in detail, variations and modifications within the scope of the invention may become apparent for specialists in the field and all such are regarded as falling within the scope of the following claims. For example, it is conceivable that the tower in alternative embodiments is united (joined) together with another for the purpose suitable unifying (joining) method. In alternative embodiments, it is also conceivable that the wind turbine's tower and nacelle are built so that the propeller is placed behind the tower in relation to wind direction. The wind passes through the tower first and then the propeller.
- Several advantages are achieved with a wind turbine and a method for erecting a wind turbine in accordance with the present invention. The most obvious advantages are that the wind turbine provides logistical advantages such as less bulky transports to the erection site. The tower's included parts are significantly smaller than the prefabricated tower sections that are currently used in wind turbine towers. The tower's included parts may be prefabricated closer to erection site without requiring a specific facility for the manufacture of tower sections. A further advantage is that the tower's shape can be optimized in relation to wind flow. Yet another important advantage of the present invention is that it reduces considerably the number of bolt joints necessary to erect the tower. The fact that the tower sections of the present invention are welded together means the elimination of bolt joints along the tower's elongated body, which allows for a longer life span and greater strength for the tower as well as facilitating its erection and the lifting of components to the top of the tower. The advantage of a longer life span for the tower of the present invention allows for components such as the generator, propeller and the like to be replaced when they are either worn out or no longer as effective as newer designs without having to construct a new tower, which reduces investment costs considerably.
Claims (5)
1. Method for building the tower (2) of a wind turbine consisting of several united sections (11) that each consist of at least one first mantle plate (12) and at least one second mantle plate (13) characterized by that the tower (2) is erected according to the following steps; initially at least one base foundation is completed at the site where the tower is to be erected after which at least one section (11) consisting of at least one first mantle plate (12) and at least one second mantle plate (13) are joined via welding in the lower end of the tower (2) after the section (11) is welded together the section (11) is lifted in the vertical direction by at least one lifting body (18) to a higher vertical position, after which at least one second section (11) including at least one first mantle plate (12) and at least one second mantle plate (13) are united with one another via welding under the first vertically lifted section (11), after which the second section (11) is welded together the first section (11) and the second section (11) are welded together, after which the required number of sections (11) are put together and joined with earlier lifted sections (11) until the desired height of the tower is achieved, after which the tower (2) is secured to the base foundation.
2. Method for building a tower (2) in accordance with claim 1 characterized by that the sections (11) are united with one another via essentially horizontal welding seams.
3. Method in accordance with claim 1 or 2 characterized by that the tower (2) is provided with at least one bearing (7), with which the tower (2) may be rotated around a rotational axis in the tower's axial direction, and that the tower (2) during welding of the welding seams (17) is turned around the rotational axis in the tower's axial direction.
4. Method in accordance with claim 1 or 2 characterized by that the welding of the tower's sections is accomplished by the welding equipment being moved around the tower during welding of the welding seams (17).
5. Method in accordance with at least one of the previous claims characterized by that the nacelle is lifted up to the top of the tower (2) before the tower (2) is erected to its entire vertical length.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1000122A SE535860C2 (en) | 2010-02-09 | 2010-02-09 | Procedure for producing a tower for a wind turbine |
SESE1000122-0 | 2010-02-09 | ||
PCT/SE2011/000021 WO2011099915A1 (en) | 2010-02-09 | 2011-02-07 | Method for erecting a wind turbine tower |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120304588A1 true US20120304588A1 (en) | 2012-12-06 |
Family
ID=44367977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/577,470 Abandoned US20120304588A1 (en) | 2010-02-09 | 2011-02-07 | Method for Erecting a Wind Turbine Tower |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120304588A1 (en) |
EP (1) | EP2545272A4 (en) |
SE (1) | SE535860C2 (en) |
WO (1) | WO2011099915A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150204102A1 (en) * | 2010-07-13 | 2015-07-23 | Andresen Towers A/S | Method of assembling a tubular building structure by using screw sockets |
WO2015200787A1 (en) * | 2014-06-27 | 2015-12-30 | Tindall Corporation | Method and apparatus for erecting tower with hydraulic cylinders |
LU92817B1 (en) * | 2015-09-07 | 2016-12-20 | Lorenz Voit | Wind energy plant for the generation of electrical energy from wind and corresponding tower |
WO2018057785A1 (en) * | 2016-09-21 | 2018-03-29 | Skyrise Global, Llc | Structure and method of making the same |
US10465377B2 (en) * | 2016-02-24 | 2019-11-05 | National Oilwell Varco, L.P. | Drilling rig with self-elevating drill floor |
US20220325493A1 (en) * | 2019-07-04 | 2022-10-13 | Vestas Wind Systems A/S | Method of forming a wind turbine foundation |
US20220412321A1 (en) * | 2019-11-21 | 2022-12-29 | Vestas Wind Systems A/S | Method of retrofitting a wind turbine |
US11603822B2 (en) | 2018-06-29 | 2023-03-14 | Vestas Wind Systems A/S | Method of erecting a wind turbine |
US11821403B2 (en) * | 2018-12-21 | 2023-11-21 | Nordex Energy Spain S.A.U. | Method for assembling a wind turbine and wind turbine assembled according to said method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102359302B (en) * | 2011-10-31 | 2013-10-09 | 湖北省送变电工程公司 | Extra-high voltage large-span iron tower assembling method |
CN102359303B (en) * | 2011-10-31 | 2013-10-09 | 湖北省送变电工程公司 | Extra-high voltage common circuit iron tower assembling method |
DE102019101330A1 (en) * | 2019-01-18 | 2020-07-23 | Innogy Se | Support structure for a wind turbine |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4406094A (en) * | 1980-02-28 | 1983-09-27 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Apparatus for anchoring self-supporting, tall structures |
US6408575B1 (en) * | 1999-03-30 | 2002-06-25 | Fuji Jukogyo Kabushiki Kaisha | Horizontal axis type wind turbine and method of construction thereof |
US6470645B1 (en) * | 2000-11-09 | 2002-10-29 | Beaird Industries, Inc. | Method for making and erecting a wind tower |
US6532700B1 (en) * | 2000-11-09 | 2003-03-18 | Beaird Industries, Inc. | Flange with cut for wind tower |
US20030163960A1 (en) * | 2002-03-04 | 2003-09-04 | Douglas Hadden | Utility standard repair devices and methods |
US20030183594A1 (en) * | 2002-03-26 | 2003-10-02 | Manuel Torres Martinez | Crane for the assembly of wind turbines and assembly procedure |
US20080072510A1 (en) * | 2006-09-21 | 2008-03-27 | Sound Footings, Llc | Concrete column forming assembly |
US20090087311A1 (en) * | 2007-09-29 | 2009-04-02 | Gavin Raymond Wyborn | Vertically Adjustable Horizontal Axis Type Wind Turbine And Method Of Construction Thereof |
US7805895B2 (en) * | 2008-12-16 | 2010-10-05 | Vestas Wind Systems A/S | Foundation for enabling anchoring of a wind turbine tower thereto by means of replaceable through-bolts |
US20100281818A1 (en) * | 2009-05-07 | 2010-11-11 | Southworth George L | Method for building wind turbine tower |
US8136329B2 (en) * | 2007-10-09 | 2012-03-20 | Willis Jeffrey O | Tower structure and method of assembling |
US8258646B2 (en) * | 2007-11-27 | 2012-09-04 | Wind En Water Technologie Holding Bv | Tower for a wind turbine |
US20130052015A1 (en) * | 2010-02-01 | 2013-02-28 | Dag Velund | Arrangement and a method in connection with a floating wind turbine |
US20130081350A1 (en) * | 2010-06-14 | 2013-04-04 | Max Bogi Bauunternehmung Gmbh & Co. Kg | Tower Comprising an Adapter Piece and Method for Producing a Tower Comprising an Adapter Piece |
US20130104489A1 (en) * | 2010-07-12 | 2013-05-02 | Henrik Stiesdal | Tower construction |
US8601748B2 (en) * | 2009-09-09 | 2013-12-10 | National Oilwell Varco, L.P. | Method and apparatus for wind turbine erection |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007016756A1 (en) * | 2007-04-07 | 2008-10-09 | Reinhold Gernandt | Wind power plant i.e. three-blade wind-power plant, for producing of electrical energy of average power, has transmission for transferring rotation and power of horizontal rotor shaft from tower body that is provided with bearings |
-
2010
- 2010-02-09 SE SE1000122A patent/SE535860C2/en not_active IP Right Cessation
-
2011
- 2011-02-07 EP EP11742547.0A patent/EP2545272A4/en not_active Withdrawn
- 2011-02-07 US US13/577,470 patent/US20120304588A1/en not_active Abandoned
- 2011-02-07 WO PCT/SE2011/000021 patent/WO2011099915A1/en active Application Filing
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4406094A (en) * | 1980-02-28 | 1983-09-27 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Apparatus for anchoring self-supporting, tall structures |
US6408575B1 (en) * | 1999-03-30 | 2002-06-25 | Fuji Jukogyo Kabushiki Kaisha | Horizontal axis type wind turbine and method of construction thereof |
US6470645B1 (en) * | 2000-11-09 | 2002-10-29 | Beaird Industries, Inc. | Method for making and erecting a wind tower |
US6532700B1 (en) * | 2000-11-09 | 2003-03-18 | Beaird Industries, Inc. | Flange with cut for wind tower |
US20030163960A1 (en) * | 2002-03-04 | 2003-09-04 | Douglas Hadden | Utility standard repair devices and methods |
US20030183594A1 (en) * | 2002-03-26 | 2003-10-02 | Manuel Torres Martinez | Crane for the assembly of wind turbines and assembly procedure |
US20080072510A1 (en) * | 2006-09-21 | 2008-03-27 | Sound Footings, Llc | Concrete column forming assembly |
US20090087311A1 (en) * | 2007-09-29 | 2009-04-02 | Gavin Raymond Wyborn | Vertically Adjustable Horizontal Axis Type Wind Turbine And Method Of Construction Thereof |
US8136329B2 (en) * | 2007-10-09 | 2012-03-20 | Willis Jeffrey O | Tower structure and method of assembling |
US8258646B2 (en) * | 2007-11-27 | 2012-09-04 | Wind En Water Technologie Holding Bv | Tower for a wind turbine |
US7805895B2 (en) * | 2008-12-16 | 2010-10-05 | Vestas Wind Systems A/S | Foundation for enabling anchoring of a wind turbine tower thereto by means of replaceable through-bolts |
US20100281818A1 (en) * | 2009-05-07 | 2010-11-11 | Southworth George L | Method for building wind turbine tower |
US8601748B2 (en) * | 2009-09-09 | 2013-12-10 | National Oilwell Varco, L.P. | Method and apparatus for wind turbine erection |
US20130052015A1 (en) * | 2010-02-01 | 2013-02-28 | Dag Velund | Arrangement and a method in connection with a floating wind turbine |
US20130081350A1 (en) * | 2010-06-14 | 2013-04-04 | Max Bogi Bauunternehmung Gmbh & Co. Kg | Tower Comprising an Adapter Piece and Method for Producing a Tower Comprising an Adapter Piece |
US20130104489A1 (en) * | 2010-07-12 | 2013-05-02 | Henrik Stiesdal | Tower construction |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150204102A1 (en) * | 2010-07-13 | 2015-07-23 | Andresen Towers A/S | Method of assembling a tubular building structure by using screw sockets |
US9175494B2 (en) * | 2010-07-13 | 2015-11-03 | Andresen Towers A/S | Method of assembling a tubular building structure by using screw sockets |
WO2015200787A1 (en) * | 2014-06-27 | 2015-12-30 | Tindall Corporation | Method and apparatus for erecting tower with hydraulic cylinders |
US9556636B2 (en) | 2014-06-27 | 2017-01-31 | Tindall Corporation | Method and apparatus for erecting tower with hydraulic cylinders |
US10577819B2 (en) | 2014-06-27 | 2020-03-03 | Tindall Corporation | Method and apparatus for erecting tower with hydraulic cylinders |
LU92817B1 (en) * | 2015-09-07 | 2016-12-20 | Lorenz Voit | Wind energy plant for the generation of electrical energy from wind and corresponding tower |
US10465377B2 (en) * | 2016-02-24 | 2019-11-05 | National Oilwell Varco, L.P. | Drilling rig with self-elevating drill floor |
US10392794B2 (en) | 2016-09-21 | 2019-08-27 | Skyrise Global, Llc | Structure and method of making the same |
WO2018057792A1 (en) * | 2016-09-21 | 2018-03-29 | Skyrise Global, Llc | Structure and method of making the same |
US10550566B2 (en) | 2016-09-21 | 2020-02-04 | Skyrise Global, Llc | Structure and method of making the same |
WO2018057785A1 (en) * | 2016-09-21 | 2018-03-29 | Skyrise Global, Llc | Structure and method of making the same |
US10731327B2 (en) | 2016-09-21 | 2020-08-04 | Skyrise Global, Llc | Structure and method of making the same |
US11603822B2 (en) | 2018-06-29 | 2023-03-14 | Vestas Wind Systems A/S | Method of erecting a wind turbine |
US11821403B2 (en) * | 2018-12-21 | 2023-11-21 | Nordex Energy Spain S.A.U. | Method for assembling a wind turbine and wind turbine assembled according to said method |
US20220325493A1 (en) * | 2019-07-04 | 2022-10-13 | Vestas Wind Systems A/S | Method of forming a wind turbine foundation |
US20220412321A1 (en) * | 2019-11-21 | 2022-12-29 | Vestas Wind Systems A/S | Method of retrofitting a wind turbine |
Also Published As
Publication number | Publication date |
---|---|
EP2545272A4 (en) | 2015-04-01 |
EP2545272A1 (en) | 2013-01-16 |
SE535860C2 (en) | 2013-01-15 |
SE1000122A1 (en) | 2011-08-10 |
WO2011099915A1 (en) | 2011-08-18 |
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