Integrated Wind Turbine Foundation

Abstract

It provides an integrated wind turbine foundation that integrates the functions of offshore wind power generation, solar power generation, and net cage aquaculture, achieving effective utilization of marine resources, energy self-sufficiency, and comprehensive utilization of resources, while also enhancing economic benefits. [Solution] The integrated wind turbine foundation includes an aquaculture net cage (1) at least a portion of which is located above sea level in the vertical direction, a solar power generation structure (2) attached to the top of the aquaculture net cage, and a wind turbine structure (3) fixedly attached above the aquaculture net cage.

Description

[Technical Field]

[0001] The present invention relates to the technical field of offshore wind turbine foundations, and in particular to integrated wind turbine foundations. [Background technology]

[0002] With the rapid development of wind power generation technology, offshore wind turbines are broadly divided into two types: fixed and floating, depending on the method of installing the power generation unit offshore. Fixed types involve building foundations on the seabed in shallow waters and then installing the power generation equipment on top of that. Floating types involve floating the power generation unit on a floating structure offshore, which is connected to the float with mooring lines to prevent it from moving.

[0003] Wind power generation has high technical content and investment costs, resulting in relatively low profits. Therefore, traditional floating wind power foundations integrate wind power generation with fishing, thereby increasing overall profits, achieving grid parity for offshore wind power generation, and providing a good habitat for marine life. However, since floating wind power foundations are only used to support the wind power generation units during installation, the utilization rate of offshore resources is relatively low. Summary of the Invention [Problem to be solved by the invention]

[0004] In view of the above, the present invention provides an integrated wind turbine foundation to solve the problem of relatively low utilization of offshore resources. [Means for solving the problem]

[0005] This invention is an aquaculture net cage at least a portion of which is located above the sea surface in the height direction; a solar power generation structure attached to the top of the aquaculture net cage; and a wind turbine structure fixedly mounted above the aquaculture netpen.

[0006] The benefits are as follows: By exposing at least a portion of the net cage above sea level, the net cage area can be increased, forming a "semi-submersible" foundation. Furthermore, by installing a solar power generation structure on top of the net cage and a wind turbine structure above the net cage, the three-dimensional ocean space can be effectively utilized. Furthermore, by combining aquaculture, solar power generation, and wind power generation, diversified income can be obtained, improving overall profits and achieving effective integration and comprehensive utilization of multiple resources. Furthermore, in the event of an emergency such as a power grid blackout, solar power generation and wind power generation can provide the necessary power for the net cage, ensuring the normal operation of aquaculture activities. In other words, the functions of offshore wind power generation, solar power generation, and net cage aquaculture can be integrated to achieve effective utilization of marine resources, energy self-sufficiency, and comprehensive resource utilization, further enhancing economic benefits.

[0007] In one optional embodiment, the integrated wind turbine foundation further includes a connection structure including a first connection member and a second connection member, one of which is located inside the aquaculture net cage and has one axial end fixed to the top of the aquaculture net cage and the other axial end extending toward the bottom wall of the aquaculture net cage, and the other of which has one axial end located outside the aquaculture net cage and the other end extending to the inside of the aquaculture net cage and connected to the other end of the one of the first and second connection members.

[0008] The beneficial effects are as follows: one of the first and second connecting members is installed on the top of the net cage, and the other is connected to the first and extends outside the net cage. By connecting the two, the external force that the other is subjected to can be transmitted to the net cage. Compared to a single-column foundation, the net cage area is larger, allowing for the formation of a semi-submersible structure. The enlarged water surface gives the entire integrated wind turbine foundation higher overturning resistance, improving the phenomenon of the single-column structure having weak overturning resistance in the pitch direction.

[0009] In one optional embodiment, one of the other ends of the first connecting member and the second connecting member has a slide groove extending along its axial direction, and the other has a slide protrusion extending along its axial direction, the slide protrusion being slidably mounted within the slide groove, and the axis of the first connecting member and the axis of the second connecting member being parallel.

[0010] The beneficial effects are as follows: one of the other ends of the first connecting member and the second connecting member is provided with a sliding groove extending along its axis, and the other is provided with a sliding protrusion extending along its axis, and the axis of the first connecting member and the axis of the second connecting member are parallel, so that during installation the sliding protrusion and the sliding groove can slide relative to each other in the axial direction, and a certain adjustment space is provided, which can better accommodate aquaculture net cages of various sizes, reduces installation difficulties, and makes the installation process more flexible and convenient.

[0011] In one optional embodiment, the integrated wind turbine foundation further includes a pontoon attached to the bottom of the aquaculture net cage along a height direction, the pontoon including a ballast tank opened therein and a water inlet and a water outlet communicating with the ballast tank, the interior of the ballast tank being used to store and discharge ballast water, the pontoon having a water inlet attached to a water supply valve, the water outlet being located below the water inlet and having a water discharge valve attached to the water outlet, and a pump fixedly attached to the pontoon for controlling the introduction of ballast water into the ballast tank and the discharge of ballast water from the ballast tank to the outside of the ballast tank.

[0012] The beneficial effects are as follows: By installing water inlet and outlet valves at the ballast tank's water inlet and outlet, respectively, and adding a pump, the amount of ballast water entering the ballast tank can be easily controlled, allowing for flexible adjustment of the overall draft of the integrated wind turbine. The addition of pontoons also increases the additional mass and moment of inertia of the entire integrated wind turbine foundation, thereby improving the damping of the entire structure. Furthermore, due to the high height of the wind turbine unit, the wind's tilting moment is relatively large at a certain wind speed, making it more likely to experience significant pitching. Adding pontoons transforms the entire structure into a semi-submersible / semi-column structure, improving the pitch and roll resistance of the mono-column wind turbine, increasing overall viscous damping, improving overall motion performance in terms of pitching autonomy, and adjusting the resonant period.

[0013] In one optional embodiment, the integrated wind turbine foundation further includes an anchor chain having one end connected to one axial end of the other of the first connecting member and the second connecting member, and the other end fixed to the seabed.

[0014] The beneficial effects are as follows: By adding anchor chains, the wind turbine foundation can be fixed to the seabed, improving the degree of displacement and overturning caused by special sea conditions such as wind, waves, and tides, and ensuring that the wind turbine can operate stably even under extreme weather conditions.

[0015] In one optional embodiment, a plurality of the anchor chains are provided, and the plurality of anchor chains are arranged at intervals in the circumferential direction of the other of the first connecting member and the second connecting member.

[0016] The beneficial effects are as follows: By providing multiple anchor chains, the load on the wind turbine foundation can be distributed to the sea, reducing the stress on a single anchor chain, thereby improving the load-bearing capacity and stability of the entire wind turbine foundation.

[0017] In one optional embodiment, the wind turbine structure includes a tower having one axial end attached to the top of the aquaculture netpen and the other axial end extending away from the sea surface, a generator attached to the other axial end of the tower, and a windmill having a hub operably connected to a rotor of the generator via a transmission shaft or a hub operably connected to the rotor of the generator via a transmission shaft and gear structure.

[0018] The beneficial effects are as follows: By installing a tower with a wind turbine structure on top of the aquaculture net cage, installing a generator on the tower, and further connecting the wind turbine and the generator rotor in a drivable manner, the offshore wind energy obtained by the wind turbine can be converted into electrical energy via a transmission shaft and gear structure, which can then supply power to the aquaculture net cage and other offshore equipment, reducing dependence on the external power grid and improving energy self-sufficiency. In addition, operation and maintenance personnel can easily centrally manage the wind turbine and aquaculture net cage, improving operation and maintenance efficiency.

[0019] In one optional embodiment, the aquaculture netpen includes a support frame surrounding to form a cylindrical netpen cage.

[0020] The beneficial effects are as follows: By providing a cylindrical net cage-type support frame, the stability of the net cage against wind and waves is improved, and shaking and deformation caused by the impact of waves are reduced, ensuring stable operation of the net cage over a long period of time.

[0021] In one optional embodiment, the solar power generation structure includes a plurality of solar panels laid on top of the aquaculture net cage, the plurality of solar panels being joined together to form a disk structure.

[0022] The beneficial effects are as follows: By installing multiple solar panels on top of the aquaculture net cages, they can capture sunlight and convert the light energy into electrical energy, as well as increase the overall weight, making them more resistant to the effects of harsh weather such as wind and waves.

[0023] In one optional embodiment, an opening is also provided at the top of the aquaculture netpen, the solar panel is attached to the opening, and the solar panel, the side wall of the aquaculture netpen, and the top wall of the pontoon are enclosed to form an aquaculture chamber.

[0024] The beneficial effects are as follows: By providing an opening at the top of the net cage and installing the solar panel in the opening, there is no need to occupy additional land or sea resources, and the space at the top of the net cage can be used effectively. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a schematic front view of an integrated wind turbine foundation according to an embodiment of the present invention; [Figure 2] 1 is a partial perspective schematic view of an integrated wind turbine foundation according to an embodiment of the present invention; [Figure 3] 1 is a schematic perspective view of one of the first and second connecting members of the integrated wind turbine foundation according to an embodiment of the present invention when installed in a net cage for aquaculture; FIG. [Figure 4] 2 is a schematic perspective view of the other of the first and second connecting members of the integrated wind turbine foundation according to an embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0026] In order to more clearly describe the technical solutions in the specific embodiments of the present invention, the following will briefly introduce the drawings necessary for describing the specific embodiments. It is clear that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without paying creative effort.

[0027] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without paying creative labor belong to the protection scope of the present invention.

[0028] In the description of this application, the orientations or positional relationships indicated by terms such as "center," "upper," "lower," "top," "bottom," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings, and are intended merely to facilitate and simplify the description of this application. They do not indicate or imply that the devices or elements referred to have a particular orientation or must be configured or operate in a particular orientation, and therefore cannot be understood as limiting this application.

[0029] The terms "first" and "second" are used for descriptive purposes only and cannot be understood to denote or imply relative importance or the number of technical features depicted. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include one or more of that feature. In this description, unless otherwise specified, "plurality" means two or more.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "attached," "coupled," and "connected" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection. They may be a mechanical connection or an electrical connection. They may be a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can specifically understand the specific meanings of the above terms in this application.

[0031] In addition, the technical features of different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0032] Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[0033] According to an embodiment of the present invention, an integrated wind turbine foundation is provided.

[0034] Specifically, as shown in FIG. 1 , the integrated wind turbine foundation includes an aquaculture net cage 1, a solar power generation structure 2, and a wind turbine structure 3, wherein the aquaculture net cage 1 is at least partially located above sea level 71 in the height direction, the solar power generation structure 2 is attached to the top of the aquaculture net cage 1, and the wind turbine structure 3 is fixedly attached above the aquaculture net cage 1.

[0035] The technical solution of this embodiment allows at least a portion of the net cage 1 to be exposed above the sea surface 71 in the vertical direction, thereby increasing the net cage area and forming a "semi-submersible" foundation. Furthermore, by installing a solar power generation structure 2 on top of the net cage 1 and a wind turbine structure 3 above the net cage 1, the three-dimensional ocean space can be effectively utilized. Furthermore, by combining aquaculture, solar power generation, and wind power generation, diversified income can be obtained, improving overall profits and realizing the effective integration and comprehensive utilization of multiple resources. Furthermore, in the event of an emergency such as a power grid blackout, solar power generation and wind power generation can provide the necessary power for the net cage 1, ensuring the normal operation of aquaculture activities. In other words, the functions of offshore wind power generation, solar power generation, and net cage aquaculture are integrated to achieve effective utilization of marine resources, energy self-sufficiency, and comprehensive resource utilization, thereby further enhancing economic benefits.

[0036] As shown in Figures 1, 3, and 4, the integrated wind turbine foundation further includes a connecting structure 4, which includes a first connecting member 41 and a second connecting member 42, one of which is located inside the aquaculture net cage 1, with one axial end fixed to the top of the aquaculture net cage 1 and the other axial end extending toward the bottom wall of the aquaculture net cage 1, and the other of which has one axial end located outside the aquaculture net cage 1 and the other end extending to the inside of the aquaculture net cage 1 and connected to the other end of the other.

[0037] Using the technical solution of this embodiment, one of the first connecting member 41 and the second connecting member 42 is installed on the top of the net cage 1, and the other is connected to the first connecting member and extended outside the net cage 1. By connecting the two, the external force received by the other can be transmitted to the net cage 1. Compared to a single-column foundation, the net cage area is larger, allowing for the formation of a semi-submersible structure. The enlarged water surface area gives the entire integrated wind turbine foundation higher overturning resistance, improving the phenomenon of the single-column structure having weak overturning resistance in the pitch direction.

[0038] In this embodiment, one of the other ends of the first connecting member 41 and the second connecting member 42 is provided with a slide groove 43 extending along its axial direction, and the other is provided with a slide protrusion 44 extending along its axial direction, the slide protrusion 44 is slidably mounted within the slide groove 43, and the axis of the first connecting member 41 and the axis of the second connecting member 42 are parallel.

[0039] When the technical solution of this embodiment is used, one of the other ends of the first connecting member 41 and the second connecting member 42 is provided with a sliding groove 43 extending along its axial direction, and the other is provided with a sliding protrusion 44 extending along its axial direction, and the axis of the first connecting member 41 and the axis of the second connecting member 42 are parallel to each other. During installation, the sliding protrusion 44 and the sliding groove 43 can slide relative to each other in the axial direction, and a certain adjustment space is provided, which can better suit aquaculture net cages 1 of various sizes, reduce the difficulty of installation, and make the installation process more flexible and convenient.

[0040] Preferably, in the present application, the first connecting member 41 is provided with a slide groove 43 and is attached to the inside of the aquaculture net cage 1, and the second connecting member 42 is provided with a slide protrusion 44.

[0041] Similarly, the number of slide grooves 43 and slide protrusions 44 is not particularly limited, as long as the slide protrusions 44 and slide grooves 43 are provided in one-to-one correspondence and can be slidably provided when attached.

[0042] Preferably, a total of three slide grooves 43 are provided as one group, and in this case, three slide protrusions 44 are also provided.

[0043] Similarly, in the present application, it is preferable that the axis of the first connecting member 41 and the axis of the second connecting member 42 are arranged to be collinear, which makes the sliding process smoother, avoids friction due to misalignment, reduces movement resistance, and is advantageous in that the first connecting member 41 and the second connecting member 42 can move smoothly along a predetermined trajectory when attached.

[0044] Furthermore, the relationship between the size of the slide groove 43 and the size of the slide protrusion 44 is not particularly limited.

[0045] Preferably, the length of the sliding groove 43 along its axis is equal to or greater than the length of the sliding protrusion 44 along its axis, and such a configuration facilitates timely adjustment of the draft of the entire structure, and when encountering special sea conditions such as wind, waves, and tides, the sliding connection design allows for slight relative sliding in the axial direction, thereby maintaining the stability of the wind turbine and the solar power generation structure 2.

[0046] In the above embodiment, the downward movement limit of the aquaculture net cage 1 is when the top of the aquaculture net cage 1 sinks below the sea surface, and at this time, the solar power generation structure 2 must be positioned above the sea surface.

[0047] Of course, once adjusted to a predetermined position, it can also be fixed using a fixing structure. For example, the cross section of the sliding protrusion 44 can be "H" shaped, and the corresponding sliding groove can be configured to match that shape. When installing, the sliding protrusion 44 is placed within the sliding groove 43 to form an "H" shaped structure, thereby achieving circumferential positioning of the sliding protrusion 44. Furthermore, by providing a certain degree of elasticity to the first connecting member 41, the groove width of the sliding groove 43 can be slightly elastically deformed. When installing the second connecting member 42 to a predetermined position within the first connecting member 41, an elastic buckle / elastic circlip is used to clamp the outer wall of the first connecting member 41 and position the second connecting member 42 axially. If adjustment is required, the elastic buckle / elastic circlip can be removed, the axial position of the sliding protrusion 44 of the second connecting member 42 can be adjusted, and the elastic buckle / elastic circlip can be reattached.

[0048] As shown in Figures 1 and 2, the integrated wind turbine foundation further includes a pontoon 5 and a pump. The pontoon 5 is attached to the bottom of the aquaculture net cage 1 along the height direction and includes a ballast tank opened therein and a water inlet and a water outlet communicating with the ballast tank. The inside of the ballast tank is used to store and discharge ballast water, a water supply valve is attached to the water inlet, a water outlet is located below the water inlet and a drain valve is attached to the water outlet. The pump is fixedly attached to the pontoon 5 and is used to control such things as putting ballast water into the ballast tank and discharging the ballast water in the ballast tank out of the ballast tank.

[0049] The technical solution of this embodiment provides a water inlet valve and a water outlet valve for the ballast tank inside the pontoon 5, respectively, and adds a pump to easily control the amount of ballast water entering the ballast tank, allowing for flexible adjustment of the draft depth of the entire integrated wind turbine. The addition of the pontoon 5 also increases the additional mass and additional moment of inertia of the entire integrated wind turbine foundation, thereby improving the damping of the entire structure. Furthermore, due to the high height of the wind turbine unit, the wind tilting moment is relatively large at a certain wind speed, making it more likely to experience a large pitch phenomenon. The addition of the pontoon 5 transforms the entire structure into a semi-submersible-semi-column structure, thereby improving the pitch and roll resistance of the mono-column wind turbine, increasing the overall viscous damping, improving the overall motion performance in terms of pitch autonomy, and adjusting the resonant period.

[0050] Furthermore, by adding a control terminal and connecting it to the water supply valve and the drain valve in a communicative manner, it becomes easier to timely adjust the opening degree of each valve and further timely adjust the center of gravity of the entire integrated wind turbine foundation, thereby timely adjusting the draft depth of the entire integrated wind turbine foundation.

[0051] During normal operation, the entire net cage 1 is located below the water surface, with only the solar power generation support layer located above the water surface. When towing or collecting fish, all ballast water must be discharged from the ballast tank and the entire net cage 1 must be raised to the required height.

[0052] In the present application, there are no particular limitations on the installation position of the pump, as long as the amount of ballast water in the ballast tank can be flexibly adjusted.

[0053] In one embodiment, the pump is fixed close to the ballast tank; in this configuration, the length of the pipeline used to carry the ballast water is reduced, ensuring that the ballast water can be efficiently pumped and discharged, and reducing energy losses.

[0054] Furthermore, a control device, such as a transfer valve box, may be added to the ballast water flow path to ensure that the ballast water flows and is regulated normally.

[0055] Preferably, the pump type selected is a centrifugal pump.

[0056] Furthermore, the number of pumps is not particularly limited, and for example, two sets of pumps may be provided, one for injecting ballast water and the other for discharging it.

[0057] As shown in FIG. 1 , the integrated wind turbine foundation further includes an anchor chain 6, one end of which is connected to one axial end of the other of the first connecting member 41 and the second connecting member 42, and the other end of which is fixed to the seabed surface 72.

[0058] Using the technical solution of this embodiment, the wind turbine foundation can be fixed to the seabed 72 by adding anchor chains 6, which reduces the degree of displacement and overturning caused by special sea conditions such as wind, waves, and tides, ensuring stable operation of the wind turbine even under extreme weather conditions. In addition, installing the anchor chains 6 is relatively simple and does not require complex installation equipment or processes, which helps reduce construction costs. Furthermore, after the wind turbine is decommissioned, it can be recycled and reused in a timely manner, which is in line with the concept of sustainable development.

[0059] In this example, there is no particular limitation on the number of anchor chains 6. In one embodiment, a plurality of anchor chains 6, for example, two or more anchor chains 6, are provided, and in this case, the plurality of anchor chains 6 are arranged at intervals in the circumferential direction of the other of the first connecting member 41 and the second connecting member 42.

[0060] The technical solution of this embodiment can distribute the load on the wind turbine foundation to the sea by providing multiple anchor chains 6, reducing the stress on each anchor chain 6, thereby improving the load-bearing capacity and stability of the entire wind turbine foundation. In addition, the provision of multiple anchor chains 6 can reduce the need for maintenance due to movement or damage to the entire integrated wind turbine foundation, thereby reducing operating costs.

[0061] As shown in Figures 1 and 2, the wind turbine structure 3 includes a tower 31 having one end along its axis attached to the top of the aquaculture net cage 1 and the other end in the axial direction extending in a direction away from the sea surface 71, a generator attached to the other end in the axial direction of the tower 31, and a windmill 32 having a hub operatively connected to the rotor of the generator via a transmission shaft, or a windmill 32 having a hub operatively connected to the rotor of the generator via a transmission shaft and a gear structure.

[0062] When the technical solution of this embodiment is used, the tower 31 of the wind turbine structure 3 is installed on top of the aquaculture net cage 1, a generator is mounted on the tower 31, and the windmill 32 and the rotor of the generator are further connected in a drivable manner, so that the offshore wind energy obtained by the windmill 32 can be converted into electrical energy via a transmission shaft and gear structure to supply power to the aquaculture net cage 1 and its offshore equipment, reducing dependence on the external power grid and improving energy self-sufficiency. In addition, operation and maintenance personnel can easily centrally manage the wind turbine and the aquaculture net cage 1, improving operation and maintenance efficiency.

[0063] In the present application, the wind turbine 32 is provided with three blades, and in this case, the three blades only need to be attached evenly in the circumferential direction of the central axis of the hub.

[0064] As shown in Figures 1 to 3, the aquaculture net cage 1 includes a support frame 11 that surrounds the cylindrical net cage to form the net cage.

[0065] By using the technical solution of this embodiment, a cylindrical net cage-type support frame 11 is provided, which improves the stability of the net cage against wind and waves, reduces shaking and deformation caused by wave impact, and ensures long-term stable operation of the net cage.

[0066] As shown in Figures 1 and 2, the solar power generation structure 2 is laid on top of the aquaculture net cage 1 and includes multiple solar panels 21 that are joined together to form a disk structure.

[0067] By using the technical solution of this embodiment, multiple solar panels 21 are installed on top of the aquaculture net cage 1 to capture sunlight and convert the light energy into electrical energy, while also increasing the overall weight to make it more resistant to harsh weather conditions such as wind and waves.

[0068] In the present application, an opening is also provided at the top of the net cage 1, the solar panel 21 is attached to the opening, and the solar panel 21, the side wall surface of the net cage 1, and the top wall surface of the pontoon 5 surround the opening to form a culture chamber. At this time, the first connecting member 41 is connected to and fixed to the solar panel 21 near the inner wall of the culture chamber.

[0069] Of course, in another optional embodiment, an attachment platform may be provided on top of the aquaculture net cage 1, in which case one end of the first connecting member 41 along its axis is connected to the attachment platform.

[0070] By using the technical solution of this embodiment, an opening is provided at the top of the net cage and the solar panel 21 is installed in the opening, so that there is no need to occupy additional land or sea resources, and the space at the top of the net cage can be effectively utilized.

[0071] In this application, the solar power generation structure 2 may include components such as an inverter, a distribution box, and a battery. In this case, the inverter converts the direct current generated by the solar panels 21 into alternating current, and the electrical energy generated by each solar panel 21 is collected in an energy storage battery using cables, and distributed and protected by the distribution box.

[0072] Of course, components may be provided for overvoltage protection, undervoltage protection, short circuit protection, earth leakage protection, etc. These are not improved and remain in conventional form, so will not be described in detail here.

[0073] Obviously, the above examples are merely illustrative for the purpose of clarity and are not intended to limit the embodiments. Those skilled in the art can make other different modifications or changes based on the above description. It is not necessary and impossible to list all the embodiments here. However, the obvious modifications or changes derived thereby still fall within the scope of protection of the present invention. [Explanation of symbols]

[0074] 1. Aquaculture net cages 11 Support frame 2. Photovoltaic power generation structure 21 Solar Panels 3 Wind Turbine Structure 31 Tower 32 Windmill 4. Connection structure 41 first connecting member 42 second connecting member 43 Slide groove 44 Slide protrusion 5. Pontoon 6. Anchor chain 71 sea level 72 Seabed surface

Claims

1. an aquaculture net cage (1) at least a portion of which is located above the sea surface (71) in the height direction; a solar power generation structure (2) attached to the top of the aquaculture net cage (1); and a wind turbine structure (3) fixedly attached above the aquaculture net pen (1).

2. 2. The integrated wind turbine foundation according to claim 1, further comprising a connecting structure (4) including a first connecting member (41) and a second connecting member (42), one of which is located inside the net cage (1) and has one axial end fixed to the top of the net cage (1) and the other axial end extending toward the bottom wall of the net cage (1), and the other of which has one axial end located outside the net cage (1) and the other end extending to the inside of the net cage (1) and connected to the other end of the first connecting member (41).

3. one of the other ends of the first connecting member (41) and the second connecting member (42) is provided with a slide groove (43) extending along its axial direction, and the other is provided with a slide protrusion (44) extending along its axial direction, and the slide protrusion (44) is slidably attached within the slide groove (43); The integrated wind turbine foundation according to claim 2, characterized in that the axis of the first connecting member (41) and the axis of the second connecting member (42) are parallel.

4. a pontoon (5) attached to the bottom of the aquaculture net cage (1) along a height direction, the pontoon (5) including a ballast tank opened therein and a water inlet and a water outlet communicating with the ballast tank, the interior of the ballast tank being used to store and discharge ballast water, a water supply valve attached to the water inlet, a water outlet located below the water inlet, and a water discharge valve attached to the water outlet; The integrated wind turbine foundation according to any one of claims 1 to 3, further comprising: a pump fixedly attached to the pontoon (5), the pump controlling the introduction of ballast water into the ballast tank and the discharge of the ballast water from the ballast tank to the outside of the ballast tank.

5. 4. The integrated wind turbine foundation according to claim 2 or 3, further comprising an anchor chain (6) having one end connected to one axial end of the other of the first connecting member (41) and the second connecting member (42) and having the other end fixed to the seabed (72).

6. 6. The integrated wind turbine foundation according to claim 5, wherein a plurality of the anchor chains (6) are provided, and the plurality of anchor chains (6) are arranged at intervals in the circumferential direction of the other of the first connecting member (41) and the second connecting member (42).

7. The wind turbine structure (3) comprises: a tower (31) having one end along its axis attached to the top of the aquaculture net cage (1) and the other end in the axial direction extending in a direction away from the sea surface (71); a generator attached to the other end of the tower (31) along its axis; and a wind turbine (32) whose hub is translatably connected to the rotor of the generator via a transmission shaft or whose hub is translatably connected to the rotor of the generator via a transmission shaft and gear arrangement.

8. The aquaculture net cage (1) An integrated wind turbine foundation according to any one of claims 1 to 3, characterized in that it comprises a support frame (11) surrounding the cylindrical net cage to form a net cage.

9. The solar power generation structure (2) comprises:

4. The integrated wind turbine foundation according to claim 1, further comprising a plurality of solar panels (21) laid on top of the aquaculture net cage (1), the plurality of solar panels (21) being joined together to form a disk structure.

10. 10. The integrated wind turbine foundation according to claim 9, characterized in that an opening is also provided at the top of the aquaculture net cage (1), the solar panels (21) are attached to the opening, and the solar panels (21), the side walls of the aquaculture net cage (1) and the top wall of the pontoon (5) are enclosed to form an aquaculture chamber.

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