EP4739906A1 - A tower for a wind turbine - Google Patents

A tower for a wind turbine

Info

Publication number
EP4739906A1
EP4739906A1 EP24751652.9A EP24751652A EP4739906A1 EP 4739906 A1 EP4739906 A1 EP 4739906A1 EP 24751652 A EP24751652 A EP 24751652A EP 4739906 A1 EP4739906 A1 EP 4739906A1
Authority
EP
European Patent Office
Prior art keywords
tower
plate
spacer
frame
coupled
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.)
Pending
Application number
EP24751652.9A
Other languages
German (de)
French (fr)
Inventor
Frederik Jul BERTELSEN
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.)
Siemens Gamesa Renewable Energy AS
Original Assignee
Siemens Gamesa Renewable Energy AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Gamesa Renewable Energy AS filed Critical Siemens Gamesa Renewable Energy AS
Publication of EP4739906A1 publication Critical patent/EP4739906A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F03D13/112—Assembly of wind motors; Arrangements for erecting wind motors of towers; of masts
    • 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
    • F03D13/201—Towers
    • F03D13/202—Access thereto
    • 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
    • F03D13/205—Connection means, e.g. joints between segments
    • F03D13/206—Connection means, e.g. joints between segments between the tower and the foundation
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
    • 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
    • E04H12/342—Arrangements for stacking tower sections on top of each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/88—Arrangement of components within nacelles or towers of mechanical components
    • 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

Landscapes

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

Abstract

A tower (20) for a wind turbine comprising a plurality of tower sections (21, 22, 23, 24), a spacer (40) and a frame (50) is provided. The spacer (40) configured for allowing access to the tower and the frame (50) for coupling the tower (20) to a foundation. The spacer (40) comprises a first plate (60), a second plate (70), and at least one support element (80) arranged between the first plate (60) and the second plate (70). The first plate (60) and second plate (70) spaced apart to form at least one opening (90) to allow workers to enter the interior of the tower (20).

Description

Description
A tower for a wind turbine
FIELD OF THE INVENTION
The present invention relates to a tower for a wind turbine having a tower spacer between the lower part of the tower and the frame to allow workers to enter the interior of the tower .
BACKGROUND OF THE INVENTION
Wind turbine towers are typically designed with a door opening . Some off shore wind turbines a s sembly includes a transition piece with a door . However , there are some towers or transition pieces that do not include a door opening and the acce s s must be arranged underneath the lower section of the tower or in the tower flange in such a ca se .
A typical disadvantage of such known towers is that when maintenance is required, the tower must be lifted to allow workers to acces s to the interior of the tower and perform the maintenance ta s ks .
It is therefore a goal of the present invention to provide a tower for a wind turbine with a spacer arranged between the frame and the lower space of the tower , in which the spacer has an opening configured for acces s to allow workers and the HV-cables to enter the interior of the tower , which overcome s the above-mentioned di sadvantages .
SUMMARY OF THE INVENTION
The obj ect of the invention is achieved by the independent claims . The dependent claims de scribe advantageous development s and modifications of the invention . In accordance with the invention there is provided a tower for a wind turbine comprising a plurality of tower sections , a spacer for allowing acces s to the tower and a frame for coupling the tower to a foundation . The spacer is arranged between the frame and a lower tower section of the plurality of tower sections . The spacer comprises a first plate , a second plate and at least one support element . The first plate is coupled to a flange of the lower tower section and the second plate is coupled to the frame . The at least one support element is arranged between the first plate and the second plate and coupled to both the first plate and the second plate . The first plate and the second plate are spaced apart to form at least one opening , the opening i s configured to allow workers to enter the interior of the tower .
By having a spacer arranged between the f rame and the lower tower section , the tower can be acces sed easily by workers through the opening formed by the first and the second plate .
The tower spacer allows to have a permanent acces s , preventing to lift the tower with a crane to acces s underneath the tower every time that the tower needs to be acces sed e . g . , due a maintenance tas k , which is a costly and complex operation .
In an example , the spacer may comprise a plurality of support elements arranged between the first plate and the second plate . The support elements may be coupled to both the f irst plate and the second plate .
In an example , the spacer may comprise a plurality of openings formed between the plurality of support elements .
In an example , the at least one of the plurality of openings may be configured for the pas sage of HV-cable s . Some openings may be assigned only for HV-cables and others only for worker access to prevent accidents, e.g. , worker tripping over a cable.
In an example, the tower may comprise a plurality of spacers arranged between the frame and the lower tower section.
By having a plurality of spacers arranged between the frame and the lower tower section, there may be a plurality of access to the interior of the tower. Thereby, a worker may save time by entering the tower by the nearest access. In the same way, the HV-cables may be introduced into the nearest access, preventing surrounding the tower which may require longer cables .
In an example, the spacer may further comprise a tower guiding element arranged at the first plate for aligning the spacer with the lower tower section during installation.
In an example, the spacer may further comprise at least one forklift pocket for transporting the spacer during installation .
By having a forklift pocket, the spacer can be easily and securely gripped by a crane, preventing the spacer from slipping .
In an example, the first plate may comprise holes and fastening means inserted in the holes for coupling the first plate with the lower tower section.
In an example, the second plate may comprise holes and fastening means inserted in the holes for coupling the second plate with the frame.
In an example, the fastening means are semi-permanent joining means such as bolts, screws, pins, rivets, threads, studs, or other longitudinal pieces which can be used as fasteners. In a further aspect, a wind turbine comprising a generator, a foundation, a nacelle, and a tower is provided. The frame of the tower is coupled to the foundation and an upper tower section of the plurality of tower sections is coupled to the nacelle .
Advantageous configurations and embodiments of the tower according to the invention follow from the claims dependent on claim 1 and claim 11 as well as the following description. The advantageous features of the tower and the wind turbine can generally be combined.
BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the invention are now described, by way of example only, with reference to the accompanying drawings, of which :
Fig.l shows a wind turbine;
Fig. 2 shows a tower of a wind turbine; and
Fig. 3a and 3b shows a front view of a spacer; and
Fig. 4 shows a perspective view of a spacer; and
Fig. 5 shows a perspective view of a spacer with a guiding element and forklift pockets; and
Fig. 6 shows a frame with a plurality of tower spacers.
The illustration in the drawings is in schematic form. It is noted that in different figures, similar or identical elements may be provided with the same reference signs. DESCRIPTION OF THE DRAWINGS
Fig. 1 shows a wind turbine 10 with a tower 20, a nacelle and at least one rotor blade. The tower 20 comprising a plurality of tower sections 21, 22, 23 and 24.
Fig. 2 shows a tower 20 of a wind turbine. The lower tower section 21 is connected to a tower flange 30 or directly connected to a frame 50, which is for coupling the tower 20 to a foundation. At least one spacer 40 is arranged between the frame 50 and a lower tower section 21 or the tower flange 30. A plurality of spacers may be arranged between the frame 50 and the lower tower section 21 or the tower flange 30.
Fig. 3a and Fig. 3b shows a front view of the spacer 40. The spacer 40 comprises a first plate 60, a second plate 70, at least one support element 80 and at least one opening 90. The first plat 60 and the second plate 70 are arranged parallel to each other and spaced apart to form at least one opening 90. The at least one support element 80 is arranged between the first plate 60 and the second plate 70 and coupled to both the first plate 60 and the second plate 70. The first plat 60 and the second plate 70 may have the same or similar size and may have squared, rectangular or trapezoidal shape. The spacer 40 may be made of concrete or a metallic material.
In Fig. 3a the spacer 40 comprises only one support element 80 arranged between first plate 60 and the second plate 70 and may be place at the center of the plates, having the spacer 40 an I-shape and thereby having two openings 90, each opening 90 on each side of the support element 80.
In Fig.3b the spacer 40 comprises at least one support element 800. The support elements 80 may be arranged at the ends of the first plate 60 and second plate 70, forming an opening 90 between the support elements 80. The opening 90 s configured to allow workers to enter the interior of the tower. Some openings 90 may be configured for the pa s sage of HV- cables .
Fig . 4 shows a perspective view of the spacer 40 . A guiding element 100 may be arranged at the f irst plate 60 for aligning the spacer 40 with the lower tower section 21 during installation . The guiding element 100 may be arranged at the middle of the first plate 60 . In case the tower 20 comprise a tower flange 40 , the guiding element 100 may be conf igured to be aligned with the tower f lange 30 . The tip of the guiding element 100 may have a different color to identify the guiding element 100 fa ster .
Fig . 5 shows a perspective view of a spacer with a guiding element 110 and forklift pockets 110 . The spacer 40 may further comprise forklift pockets 110 for transporting the spacer 40 during installation . The forklift pockets 110 may be arranged at the outer side of the support elements 80 . The forklift pockets 110 may have a square , rectangular or a certain shape to facilitate the spacer 40 to be gripped by the crane and prevent the spacer from slipping .
The first plate 60 may have holes 120 and fastening means inserted in the holes 120 for coupling the f irst plate 60 with the lower tower section 21 or to the tower flange 30 . The first plate holes 120 may be distributed at the perimeter or at the corners of the first plate 60 .
The second plate 70 may have holes 130 and fastening means inserted in the holes 130 for coupling the second plate 70 with the frame 50 . The hole s 130 may have an elongated shape and may be placed at the corners of the second plate 70 . The fastening means are semi-permanent j oining means such as bolt s , screws , pins , rivets , threads , studs , or other longitudinal piece s which can be used as fasteners .
Fig . 6 shows a frame 50 with a plurality of tower spacers 40 . A plurality of tower spacers 40 may be arranged in the frame 50 and may be arranged forming a circle to match with the lower tower section or to the tower flange . The plurality of tower spacers 40 may be arranged next to each other or may be arranged leaving a gap in between them .
Although the pre sent invention has been de scribed in detail with reference to the preferred embodiment , it is to be understood that the present invention is not limited by the disclosed example s , and that numerous additional modifications and variations could be made thereto by a person s killed in the art without departing from the scope of the invention .
It should be noted that the use of "a" or "an" throughout this application does not exclude a plurality, and "comprising" does not exclude other steps or elements . Also elements described in as sociation with different embodiments may be combined . It should also be noted that reference signs in the claims should not be construed as limiting the s cope of the claims .

Claims

Claims
1. A tower (20) for a wind turbine (10) comprising a plurality of tower sections (21, 22, 23, 24) , a spacer (40) for allowing access to the tower (20) and a frame (50) for coupling the tower (20) to a foundation, wherein the spacer (40) is arranged between the frame (50) and a lower tower section (21) of the plurality of tower sections (21, 22, 23, 24) , wherein the spacer (40) comprises:
- a first plate (60) coupled to a flange (30) of the lower tower section (21) ,
- a second plate (70) coupled to the frame (50) , and
- at least one support element (80) arranged between the first plate (60) and the second plate (70) and coupled to both the first plate (60) and the second plate (70) , characterized in that the first plate (60) and the second plate (70) are spaced apart to form at least one opening (90) , wherein the opening (90) is configured to allow workers to enter the interior of the tower (20) .
2. The tower (20) according to claim 1, wherein the spacer (40) comprises a plurality of support elements (80) arranged between the first plate (60) and the second plate (70) and coupled to both the first plate (60) and the second plate (70) .
3. The tower (20) according to claim 2, wherein the spacer (40) comprises a plurality of openings (90) formed between the plurality of support elements (80) .
4. The tower (20) according to claim 3, wherein at least one of the plurality of openings (90) is configured for the passage of HV-cables.
5. The tower (20) according to any of the preceding claims, wherein said tower (20) comprises a plurality of spacers (40) arranged between the frame (50) and the lower tower section (21) .
6. The tower (20) according to any of the preceding claims, wherein the spacer (40) further comprises a tower guiding element (100) arranged at the first plate (60) for aligning the spacer (40) with the lower tower section (21) during installation .
7. The tower (20) according to any of the preceding claims, wherein the spacer (40) further comprises at least one forklift pocket (110) for transporting the spacer (40) during installation .
8. The tower (20) according to any of the preceding claims, wherein the first plate (60) comprises holes (120) and fastening means inserted in the holes (120) for coupling the first plate (60) with the lower tower section (21) .
9. The tower (20) according to any of the preceding claims, wherein the second plate (70) comprises holes (130) and fastening means inserted in the holes (130) for coupling the second plate (70) with the frame (50) .
10. The tower (20) according to claim 8 or 9, wherein the fastening means are semi-permanent joining means such as bolts, screws, pins, rivets, threads, studs, or other longitudinal pieces which can be used as fasteners.
11. A wind turbine (10) comprising a generator, a foundation, a nacelle and a tower (20) according to any of the claims 1 to 10, wherein the frame (50) of the tower (20) is coupled to the foundation and an upper tower section (24) of the plurality of tower sections (21, 22, 23, 24) is coupled to the nacelle .
EP24751652.9A 2023-09-05 2024-07-30 A tower for a wind turbine Pending EP4739906A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23195347.2A EP4520959A1 (en) 2023-09-05 2023-09-05 A tower for a wind turbine
PCT/EP2024/071549 WO2025051450A1 (en) 2023-09-05 2024-07-30 A tower for a wind turbine

Publications (1)

Publication Number Publication Date
EP4739906A1 true EP4739906A1 (en) 2026-05-13

Family

ID=87934033

Family Applications (2)

Application Number Title Priority Date Filing Date
EP23195347.2A Withdrawn EP4520959A1 (en) 2023-09-05 2023-09-05 A tower for a wind turbine
EP24751652.9A Pending EP4739906A1 (en) 2023-09-05 2024-07-30 A tower for a wind turbine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP23195347.2A Withdrawn EP4520959A1 (en) 2023-09-05 2023-09-05 A tower for a wind turbine

Country Status (2)

Country Link
EP (2) EP4520959A1 (en)
WO (1) WO2025051450A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7694476B2 (en) * 2008-02-29 2010-04-13 Structural Components Llc Systems and methods for in-line base plate termination in monopole structures
CN208057316U (en) * 2018-03-06 2018-11-06 中国电建集团华东勘测设计研究院有限公司 A kind of Wind turbines steel reinforced concrete tower prestress wire Opposite direction connection flange arrangement
CN209115261U (en) * 2018-10-29 2019-07-16 浙江中拓电力科技有限公司 A kind of tower tube of offshore wind power generator levelling device
CN111306007A (en) * 2020-04-09 2020-06-19 颜志成 Fan tower drum connecting structure and construction method
CN113217294B (en) * 2021-06-25 2022-07-01 上海电气风电集团股份有限公司 Tower bottom section structure, tower and wind driven generator
CN114934881B (en) * 2022-06-07 2025-10-17 西安科技大学 Wind driven generator overhauls auxiliary device
CN115573871A (en) * 2022-11-21 2023-01-06 中国船舶重工集团海装风电股份有限公司 Frame module and installation method of offshore unit tower equipment for efficient construction

Also Published As

Publication number Publication date
WO2025051450A1 (en) 2025-03-13
EP4520959A1 (en) 2025-03-12
TW202516106A (en) 2025-04-16

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