CN115977887A - Modular floating foundation and wind turbine - Google Patents

Abstract

The embodiment of the application provides a modularization floats formula basis and fan. The modular floating foundation is connected to the side of the bottom of the tower of the wind turbine. The modular floating foundation includes a plurality of standard buoyant modules and a plurality of connecting structures. A plurality of standard floating body modules are connected in sequence to form a polygon. And two adjacent standard floating body modules at each corner of the polygon are connected through a connecting structural member, wherein the tower is connected to the connecting structural member at one corner of the polygon. This application can reduce and make the threshold, reduces pier occupation time.

Description

Modular floating foundation and wind turbine

technical field

The embodiments of the present application relate to the technical field of wind power generation, and in particular to a modular floating foundation and a wind turbine.

Background technique

With the gradual depletion of energy sources such as coal and oil, human beings pay more and more attention to the utilization of renewable energy. As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. With the continuous development of wind power technology, the application of wind turbines in power systems is increasing. Wind turbines are large-scale equipment that convert wind energy into electrical energy, and are usually installed in areas rich in wind energy resources.

Due to the strong versatility of semi-submersible wind turbine foundations and wide range of water depths, there are many floating wind power projects using semi-submersible foundations at home and abroad. At present, the overall layout of the semi-submersible floating wind turbine foundation in the mainstream design adopts a three-column or four-column scheme. A plurality of upright columns are connected to each other through beam brackets. Most of the existing semi-submersible floating foundation design schemes are based on the design of 5MW-level wind turbines. After the wind turbines are enlarged, the diameter of the columns that mainly provide buoyancy is mostly greater than 12m. Steel cylinders above this size must be equipped with denser structural reinforcements to prevent structural buckling failure. Therefore, it brings complicated welding and construction techniques, requires professional and technical workers to operate for a long time, and needs to occupy a large area of the wharf for a long time for manufacturing and assembly. The construction efficiency is low and the economy is poor, so it is not marketable.

Contents of the invention

The purpose of the embodiments of the present application is to provide a modular floating foundation and wind turbine, which can lower the manufacturing threshold and reduce the occupancy time of the wharf.

An aspect of the embodiments of the present application provides a modular floating foundation, which is connected to the side of the bottom of the tower of the wind turbine. The modular floating foundation includes a plurality of standard floating body modules and a plurality of connection structures. The plurality of standard floating body modules are connected sequentially to form a polygon. Two adjacent standard floating body modules at each corner of the polygon are connected through the connection structure, wherein the tower is connected to the connection structure at one corner of the polygon.

Further, each of the standard buoyant modules includes two first floating uprights, an upper cross brace and a lower cross brace, and the two first floating uprights pass through the upper cross brace and the lower cross brace respectively. The supports are connected to each other, wherein the connection structure connects each of the first floating columns in two adjacent standard floating body modules.

Further, a prefabricated slot is provided on the first floating column, and a clip is provided on the connecting structure, and the clip is buckled in the prefabricated slot so that the first floating column connected to the connection structure.

Further, the plurality of connecting structural members include a first connecting structural member not connected to the tower and a second connecting structural member connected to the tower, the first connecting structural member and the second connecting structural member The connecting structural members each have two first mating surfaces, and the two first mating surfaces are respectively connected to the two first floating columns correspondingly, and the second connecting structural member also has a Connected tower mating face.

Further, a second floating column is provided at other corners except for connecting the tower, and the first connecting structural member also has a second mating surface, and the second mating surface and the second The floating uprights are correspondingly connected.

Further, the second floating column has the same structure as the first floating column.

Further, the two first floating uprights, the upper cross brace and the lower cross brace in each of the standard buoy modules form a rectangular frame, and each of the standard buoy modules also includes One or more diagonal braces arranged in the rectangular frame.

Further, each of the standard floating body modules includes two diagonal braces, one end of the two diagonal braces is respectively connected to the middle position of the upper horizontal brace, and the other end of the two diagonal braces One end is respectively connected to the positions of the two first floating uprights close to the lower cross-bracing bracket.

Further, each corner of the polygon is provided with a lower swing plate, and the lower swing plate connects the bottoms of the two first floating columns and the second floating columns at the corresponding corners.

Further, a damping reinforcement plate is connected between the lower cross braces of two adjacent standard floating body modules at each corner of the polygon.

Further, a prefabricated eye plate is provided on the lower cross brace bracket, and a mounting part with a mounting hole is provided on the damping reinforcement plate, and the mounting part and the prefabricated eye plate are connected by bolts.

Further, the standard buoyant module includes three, and the three standard buoyant modules are sequentially connected to form a triangle.

Compared with the existing three-column floating foundation, in the case of the same cross-sectional area, the diameter of a single floating column of the standard floating body module in the modular floating foundation of the embodiment of the application can be reduced by about 29%, and the internal use of the floating column Less structural reinforcement, easy to process and manufacture. Moreover, standard floating body modules can be pre-installed in factories outside the wharf, transported to the wharf and then assembled with a small number of connecting structural parts. The manufacturing threshold is low, the time spent on the wharf is short, and the transportation and installation efficiency is high.

The modular floating foundation of the embodiment of the present application is connected to the side of the tower. The modular floating foundation can avoid the gravity load of the tower and the fan. The load at the bottom of the tower is not concentrated, and the load is transmitted to the structure more evenly, which is friendly to the tower installation. .

Another aspect of the embodiments of the present application provides a fan. The wind turbine includes the above-mentioned modular floating foundation, a tower and a wind wheel, the modular floating foundation is connected to the side of the bottom of the tower, and the wind wheel is installed on the top of the tower.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a modular floating foundation according to an embodiment of the present application.

Fig. 2 is a top view of a modular floating foundation according to an embodiment of the present application.

Fig. 3 is a side view of a standard buoy module according to one embodiment of the present application.

Fig. 4 is a schematic diagram of a first connection structure according to an embodiment of the present application.

Fig. 5 is a three-dimensional schematic diagram of a modular floating foundation according to another embodiment of the present application.

Fig. 6 is a top view of a modular floating foundation according to another embodiment of the present application.

Fig. 7 is an exploded schematic diagram of a modular floating foundation according to another embodiment of the present application.

Fig. 8 is a side view of a standard buoy module according to another embodiment of the present application.

Fig. 9 is a schematic diagram of a first connection structure according to another embodiment of the present application.

Fig. 10 is a schematic top view of the connection between the floating column and the connecting structure according to an embodiment of the present application.

Fig. 11 is a schematic side view of the connection between the floating column and the connecting structural member according to an embodiment of the present application.

Fig. 12 is a schematic top view of the connection between the lower cross brace bracket and the damping reinforcement plate according to an embodiment of the present application.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of means consistent with aspects of the present application as recited in the appended claims.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the art to which the present application belongs. "First", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a" or "one" do not indicate a limitation of quantity, but mean that there is at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front", "rear", "lower" and/or "upper" are used for convenience of description only and are not intended to be limiting to a position or orientation in space. "Includes" or "comprises" and similar terms mean that the elements or items listed before "comprises" or "comprises" include the elements or items listed after "comprises" or "comprises" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "connected" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "the" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

The embodiment of the present application provides a modular floating foundation. Through the modular design, the market competitiveness can be greatly enhanced in terms of construction, transportation and assembly while ensuring the overall performance of the semi-submersible floating wind turbine foundation.

Figure 1 and Figure 2 disclose a diagram of a modular floating foundation 1 according to an embodiment of the present application, wherein Figure 1 discloses a schematic perspective view of a modular floating foundation 1, and Figure 2 discloses a schematic diagram of a modular floating foundation 1 top view. As shown in Figures 1 and 2, a modular floating foundation 1 according to an embodiment of the present application is connected to the side of the bottom of a tower 6 of a wind turbine. The modular floating foundation 1 includes a plurality of standard floating body modules 10 and a plurality of connection structures 20 . A plurality of standard floating body modules 10 are sequentially connected to form a polygon. Two adjacent standard floating body modules 10 at each corner of the polygon are connected by a connecting structure 20 , wherein the tower 6 is connected to the connecting structure 20 at one corner of the polygon.

In some embodiments, the modular floating foundation 1 of the present application includes three standard buoyancy modules 10 . Three standard floating body modules 10 are connected in turn to form a triangle.

FIG. 3 discloses a side view of a standard buoy module 10 of one embodiment of the present application. As shown in FIG. 3 , each standard buoyant module 10 includes two first floating columns 11 , an upper cross brace 12 and a lower cross brace 13 . The two first floating columns 11 are connected to each other through an upper cross brace bracket 12 and a lower cross brace bracket 13 respectively. Wherein, the connection structure 20 connects each of the first floating columns 11 in two adjacent standard floating body modules 10 . The two first floating uprights 11 , the upper cross-brace bracket 12 and the lower cross-brace bracket 13 in each standard buoyant module 10 enclose a rectangular frame, therefore, the standard buoyant module 10 is generally a rectangular frame.

As shown in FIG. 1 and FIG. 2 , each of two adjacent standard floating body modules 10 is connected to each other by a connecting structure 20 . Therefore, as shown in FIG. 2 , there are two first floating pillars 11 at each corner of the polygon (eg, the triangle in FIG. 2 ).

In some embodiments, the cross-sectional shape of the first floating column 11 of the present application is circular. The first floating column 11 is a circular buoy. The two first buoyant columns 11 in each standard buoyant module 10 have the same diameter. Certainly, the cross-sectional shape of the first floating column 11 of the present application is not limited to a circle. In other embodiments, the first floating column 11 of the present application may also be in the shape of a square, a rhombus or other polygons.

The buoyancy and restoring force of the modular floating foundation 1 are mainly provided by the first floating columns 11 in the plurality of standard floating body modules 10 . In this embodiment, the buoyancy and restoring force of the modular floating foundation 1 are mainly provided by the six first floating columns 11 in the three standard floating body modules 10 .

The multiple connecting structural members 20 of the present application include a first connecting structural member 21 not connected to the tower 6 and a second connecting structural member 22 connected to the tower 6 . FIG. 4 discloses a schematic diagram of the first connection structure 21 according to an embodiment of the present application. As shown in FIG. 4 , the first connection structure 21 has two first mating surfaces 211, and the two first mating surfaces 211 are respectively connected with the two first floating columns 11 correspondingly. The shape of the outer profile of the column 11 matches.

The second connecting structural member 22 is similar to the first connecting structural member 21, the difference between the second connecting structural member 22 and the first connecting structural member 21 is that the second connecting structural member 22 also needs to connect the tower 6, therefore, In addition to the second connecting structure 22 having two first mating surfaces 211 correspondingly connected to the two first floating columns 11, the second connecting structure 22 also has a tower fitting for connecting with the tower 6. face (not numbered). Similarly, the tower mating surface has a shape matching the outer profile of the tower 6 .

Compared with the WindFloat three-column floating foundation, in the case of the same cross-sectional area, the diameter of a single floating column of the standard floating body module 10 in the modular floating foundation 1 of the embodiment of the present application can be reduced by about 29%, and the floating column Less structural reinforcement is used inside, which is convenient for processing and manufacturing. Moreover, the standard floating body module 10 can be pre-installed in a factory outside the wharf, transported to the wharf and then assembled with a small number of connecting structural parts 20, the manufacturing threshold is low, the time spent on the wharf is short, and the transportation and installation efficiency is high.

The modular floating foundation 1 of the embodiment of the present application is connected to the side of the tower 6. The modular floating foundation 1 can avoid the gravity load of the tower 6 and the fan, the load at the bottom of the tower is not concentrated, and the load is transmitted to the structure more evenly. Tower 6 installation friendly.

Figures 5 to 7 disclose diagrams of a modular floating foundation 2 according to another embodiment of the present application, wherein, Figure 5 discloses a schematic perspective view of a modular floating foundation 2, and Figure 6 discloses a modular floating foundation 2 Fig. 7 reveals an exploded schematic view of the modular floating foundation 2. Referring to Figures 5 to 7, the difference from the modular floating foundation 1 shown in Figures 1 and 2 is that in the modular floating foundation 2 shown in Figures 5 to 7, the polygon except A second floating column 30 is additionally provided at other corners other than the connecting tower 6 . A plurality of standard floating body modules 10 and the second floating column 30 are connected through the connection structure 20 .

In some embodiments, the second floating column 30 may have the same structure as the first floating column 11 . Therefore, each constituent part of the entire modularized floating foundation 2 can be standardized, which facilitates production and manufacture.

The buoyancy and restoring force of the modular floating foundation 2 are mainly provided by the first floating column 11 and the additional second floating column 30 in the plurality of standard floating body modules 10 . In this embodiment, the buoyancy and restoring force of the modularized floating foundation 2 are mainly determined by six first floating columns 11 and two second floating columns 30 in three standard floating body modules 10 (a total of eight floating columns). supply. The function of the additional second floating column 30 is to upgrade the buoyancy and restoring force of the modular floating foundation 2 along with the capacity of the installed fan.

Fig. 8 discloses a side view of a standard buoy module 10 according to another embodiment of the present application. As shown in FIG. 8 , each standard buoyant module 10 also includes one or more splinter brackets 14 . One or more diagonal bracing brackets 14 are arranged in a rectangular frame surrounded by two first floating uprights 11 , an upper cross bracing bracket 12 and a lower cross bracing bracket 13 in each standard floating body module 10 .

In some embodiments, each standard floating body module 10 includes two diagonal braces 14, one end of the two diagonal braces 14 is respectively connected to the middle position of the upper horizontal brace 12, and the other end of the two diagonal braces 14 is respectively The two first floating uprights 11 are connected at positions close to the lower cross brace bracket 13 . Thus, the structural strength of the standard buoyancy module 10 can be increased.

FIG. 9 discloses a schematic diagram of a first connection structure 21 according to another embodiment of the present application. As shown in Figure 9, since the first connecting structural members 21 at other corners that are not connected to the tower 6 need to be connected to the first floating column 11 in each of the two adjacent standard floating body modules 10, they also need to be connected Two floating columns 30. Therefore, in addition to the first connecting structure 21 not connected to the tower 6 having two first mating surfaces 211 correspondingly connected to the two first floating columns 11, the first connecting structure 21 also has a second As for the mating surface, the second mating surface is correspondingly connected with the second floating column 30 . The second mating surface has a shape matching the outer profile of the second floating column 30 .

Figure 10 and Figure 11 disclose the connection mode between the floating column and the connection structure 20 according to an embodiment of the present application, wherein Figure 10 discloses a schematic top view of the connection between the floating column and the connection structure 20, and Figure 11 discloses A schematic side view of the connection between the floating column and the connection structure 20 . As shown in Figures 10 and 11, a prefabricated slot 111 is provided on the floating column (which may be the first floating column 11 and/or the second floating column 30), and a clip 201 is provided on the connecting structure 20 to connect The clip 201 on the structural member 20 can be snapped into the prefabricated groove 111 on the floating column, so as to connect the floating column with the connection structure 20 . Furthermore, the clamping point between the clamping piece 201 on the connecting structure 20 and the prefabricated groove piece 111 on the floating column can be fixed by welding, so as to further enhance the connection effect.

The connection between the floating column and the connection structure 20 shown in Figure 10 can be applied to the connection between the first floating column 11 and the first connection structure 21/second connection structure 22, and can also be applied to the second floating structure. The connection between the column 30 and the first connection structure 21 .

In the modular floating foundation 1 of the present application, the connection between the floating column and the connecting structural member 20 adopts the connection method of the prefabricated groove 111 and the clip 201 , so that the installation efficiency between the standard floating body modules 10 can be greatly improved.

Continuing to refer to Fig. 5 to Fig. 7, in some embodiments, a lower sway plate 40 is also provided at each corner of the polygon, and the lower sag slab 40 is connected to the two first floating columns 11 and the second at the corresponding corners. The bottom of the two floating uprights 30 .

As shown in FIG. 6 , in some embodiments, a damping reinforcement plate 50 is connected between the lower cross braces 13 of two adjacent standard floating body modules 10 at each corner of the polygon. The damping reinforcement plate 50 is a plate structure, and the material of the damping reinforcement plate 50 can be steel or composite material. Its functions are as follows: one is to increase the vertical and rotational damping of the modular floating foundation 2, and reduce the motion response of these degrees of freedom ; The second is to enhance the structural reinforcement between the cross braces.

FIG. 12 discloses a schematic top view of the connection between the lower cross brace bracket 13 and the damping reinforcement plate 50 according to an embodiment of the present application. As shown in Figure 12, a prefabricated eye plate 131 is provided on the lower cross brace bracket 13, and an installation portion 51 with a mounting hole is arranged on the damping reinforcement plate 50, and the installation portion 51 on the damping reinforcement plate 50 and the lower cross brace bracket The prefabricated eye panels 131 on 13 can be connected by bolts 52 , so as to connect the damping reinforcement plate 50 to the lower cross brace bracket 13 . The damping reinforcement plate 50 and the lower cross brace bracket 13 are connected by bolts, so that the installation efficiency of the damping reinforcement plate 50 can be improved.

The beneficial technical effects of the modular floating foundation 2 of the second embodiment of the present application are similar to those of the modular floating foundation 1 of the first embodiment.

In addition, the modular floating foundation 2 of the second embodiment of the present application is especially suitable for large-capacity wind turbines. After the capacity of the existing three-column floating foundation is increased, a larger cross-brace span and a larger diameter of the floating column are required. If the length of the cross-bracing is too long, it will become soft and the structural deformation is difficult to overcome; in addition, the diameter of the floating column is larger A denser structural reinforcement is required. And the modularized floating foundation 2 of the second embodiment of the application is formed by three floating columns (two first floating columns 11) and a second floating column 30), which are also connected by connecting structural members 20. Compared with only one floating column at the triangular point of the conventional three-column floating foundation, the modular floating column of the second embodiment of the present application The length of the cross-bracing support of the type foundation 2 can be greatly shortened; in addition, in the case of the same cross-sectional area, the diameter of the single floating column of the modular floating foundation 2 of the second embodiment of the application can be compared with the conventional three-column floating foundation design. The reduction of more than 40% also plays the role of reducing the internal structural reinforcement of the floating column, and, in the case of the same cross-sectional area, the area moment of the scattered cross-section relative to the center of the foundation water plane is larger, and the greater the restoring force provided , the greater the restoring force is, the more stable the modular floating foundation 2 is.

In addition, the damping reinforcing plate 50 on the lower cross brace bracket 13 added in the modular floating foundation 2 of the second embodiment of the present application can effectively improve the damping of the modular floating foundation 2 in the direction of heaving and shaking, and reduce the The structure responds to movement, and the increased structure cost and installation cost are very small, and the economy is excellent.

To cope with larger-capacity fans, the modular floating foundation 2 of the second embodiment of the present application has the same floating column and supporting structure in each modular component, and has fewer structural components, which is convenient for production, processing and transportation.

Two implementations of the modular floating foundation of the present application are provided below.

Implementation plan 1: In the standard floating body module, a single floating column can be round, square, rhombus or polygonal, with a diameter of about 7m; the span of the cross brace is 25-50m, and the draft is at least 20m And the connection structure between the tower and the standard floating body module is connected by welding or slotted bolts; the diameter of the tower bottom is at least 6m. It can be obtained that the total displacement of the modular floating foundation is about 6000-9000 tons.

Implementation plan 2: In the standard floating body module, the shape of a single floating column can be circular, square, rhombus or polygonal, with a diameter of about 8m; the span of the cross brace is 50-60m, and the draft is at least 20m The connection between the tower and the connecting structure of the standard floating body module, the damping reinforcement plate and the lower cross brace of the standard floating body module shall be welded or bolted; the diameter of the tower bottom shall be at least 8m. It can be obtained that the total displacement of the modular floating foundation is about 9000-13000 tons.

The modular floating foundation is applicable to sea areas with a water depth greater than 40m, and can be installed with high-power offshore wind turbines above 10MW.

The embodiment of the present application also provides a fan. As shown in Figure 1 and Figure 5, the wind turbine includes a modular floating foundation 1 or 2, a tower 6 and a wind wheel 7 as shown in Figure 1 or Figure 5 above, and the modular floating foundation 1 or 2 is connected to the tower The side of the bottom of 6, the wind wheel 7 is installed on the top of the tower 6.

The above is a detailed introduction to the modular floating foundation and the fan provided by the embodiment of the present application. In this paper, specific examples are used to illustrate the modular floating foundation and fan of the embodiment of the present application. The description of the above embodiment is only used to help understand the core idea of the present application, and is not intended to limit the present application. It should be pointed out that for those skilled in the art, without departing from the spirit and principle of the application, some improvements and modifications can also be made to the application, and these improvements and modifications should also fall into the scope of the appended documents of the application. within the scope of protection of the claims.

Claims (13)

1. The utility model provides a modularization floats formula basis, connects in the side of the pylon bottom of fan which characterized in that: the modular floating foundation includes:

the standard floating body modules are sequentially connected to form a polygon; and

and a plurality of connecting structural members, wherein two adjacent standard floating body modules at each corner of the polygon are connected through the connecting structural members, and the tower is connected to the connecting structural members at one corner of the polygon.

2. A modular floating foundation as claimed in claim 1 wherein: each standard floating body module comprises two first floating upright columns, an upper cross brace bracket and a lower cross brace bracket, wherein the two first floating upright columns are connected with each other through the upper cross brace bracket and the lower cross brace bracket respectively, and the connecting structural member is connected with each first floating upright column in the two adjacent standard floating body modules.

3. A modular floating foundation as claimed in claim 2 wherein: the first floating upright post is provided with a prefabricated groove part, the connecting structural member is provided with a clamping piece, and the clamping piece is clamped in the prefabricated groove part to connect the first floating upright post with the connecting structural member.

4. A modular floating foundation as claimed in claim 2 wherein: the connecting structural members comprise first connecting structural members which are not connected with the tower and second connecting structural members which are connected with the tower, the first connecting structural members and the second connecting structural members are provided with two first matching surfaces, the two first matching surfaces are respectively connected with the two first floating stand columns correspondingly, and the second connecting structural members are also provided with a tower matching surface which is used for being connected with the tower.

5. A modular floating foundation as claimed in claim 4 wherein: and the other corners except the corner connected with the tower are also provided with second floating columns, the first connecting component is also provided with a second matching surface, and the second matching surface is correspondingly connected with the second floating columns.

6. The modular floating foundation as set forth in claim 5, wherein: the second floating upright column has the same structure as the first floating upright column.

7. A modular floating foundation as claimed in claim 5 wherein: the two first floating upright columns, the upper cross brace bracket and the lower cross brace bracket in each standard floating body module enclose a rectangular frame, and each standard floating body module further comprises one or more inclined brace brackets arranged in the rectangular frame.

8. A modular floating foundation as claimed in claim 7 wherein: each standard floating body module comprises two inclined strut supports, one ends of the two inclined strut supports are connected to the middle position of the upper cross strut support respectively, and the other ends of the two inclined strut supports are connected to the positions, close to the lower cross strut support, of the two first floating upright columns respectively.

9. The modular floating foundation as set forth in claim 5, wherein: polygonal every angle department still is equipped with the flagging and swashing board, two at corresponding angle department are connected to the flagging and swashing board first float the stand with the bottom that the stand was floated to the second.

10. A modular floating foundation according to claim 5 or 9 wherein: and a damping reinforcing plate is connected between the lower cross brace brackets of two adjacent standard floating body modules at each corner of the polygon.

11. A modular floating foundation as claimed in claim 10 wherein: the damping reinforcing plate is provided with a mounting part with a mounting hole, and the mounting part is connected with the prefabricated eye plate through a bolt.

12. A modular floating foundation as claimed in claim 1 wherein: the standard floating body modules comprise three standard floating body modules which are sequentially connected to form a triangle.

13. A fan, its characterized in that: comprising a modular floating foundation according to any one of claims 1-12 connected to the side of the bottom of the tower, a tower, and a wind turbine mounted on top of the tower.

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