A shared mooring system suitable for floating wind farms

Abstract

The utility model embodiment provides a kind of shared mooring system suitable for floating wind farm, including multiple floating equipment platforms, still including multiple shared cable-anchor mechanism;The shared cable-anchor mechanism is connected to the bottom of water shared anchor point;The shared cable-anchor mechanism is arranged between multiple floating equipment platforms, and the shared cable-anchor mechanism is connected with floating equipment platform, to make multiple the floating equipment platform share a bottom of water shared anchor point.The shared mooring system suitable for floating wind farm proposed in this technical solution makes multiple floating equipment platforms share a bottom of water shared anchor point by shared cable-anchor mechanism.On the one hand, multiple floating equipment platforms can form a whole, the motion response of the system under the action of wind and wave can be reduced, the overall stability can be improved, the pitch angle and surge acceleration can be reduced;On the other hand, the number of mooring cable and anchor point can be reduced, and the mooring cost can be saved.

Description

Technical Field

[0001] This utility model belongs to the field of floating offshore wind power technology, and in particular relates to a shared mooring system suitable for floating wind farms. Background Technology

[0002] Floating wind power is the core solution for the large-scale development of offshore wind power in deep water areas (>50 meters). Currently, the world is still in the transition stage from demonstration application to initial commercialization. Large-scale projects that have been put into operation have verified the technical feasibility, but economic efficiency is still the key bottleneck restricting large-scale promotion.

[0003] Currently, floating wind turbines mainly employ two types of platforms: semi-submersible platforms and Spar platforms, both using a catenary mooring system connected to seabed anchorages. This traditional mooring method has the following limitations: First, to maintain sufficient catenary curvature to ensure system stability, the mooring cable length is typically 3-5 times the water depth, resulting in significant sea area occupation. Second, to meet platform stability requirements, 8-12 mooring cables and multiple anchorages are usually required, which not only increases material costs but also significantly increases the complexity of installation and construction. Furthermore, the economic viability of this mooring system decreases further when used in deep water areas (over 100 meters). Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a shared mooring system suitable for floating wind farms.

[0005] The technical solution adopted in this embodiment of the utility model is a shared mooring system suitable for floating wind farms, which includes multiple floating equipment platforms and multiple shared cable-anchor mechanisms;

[0006] The shared cable-anchor mechanism is connected to a shared anchor point on the seabed;

[0007] The shared cable-anchor mechanism is installed between multiple floating equipment platforms and is connected to the floating equipment platforms so that multiple floating equipment platforms can share a single underwater shared anchor point.

[0008] Furthermore, adjacent floating equipment platforms are interconnected via a shared cable-anchor mechanism.

[0009] Furthermore, the shared cable-anchor mechanism includes a hinged structure for connecting to a floating equipment platform, and a shared mooring cable is also connected to the hinged structure, with the end of the shared mooring cable away from the hinged structure connected to a shared anchor point on the seabed.

[0010] Furthermore, the articulated structure is provided with multiple tensioned mooring cables, which are used to connect the floating equipment platform and the articulated structure.

[0011] Furthermore, the tensioned mooring cable is arranged in a radiating pattern with the hinge structure as the center, and the end of the tensioned mooring cable away from the hinge structure is connected to a floating equipment platform.

[0012] Furthermore, the hinged structure has three tensioned mooring cables, and the included angle between adjacent tensioned mooring cables is 120°.

[0013] Furthermore, the floating equipment platform has three connection points for connecting tensioned mooring cables. The remaining connection points on the floating equipment platform are connected to non-shared mooring cables, with the end of the non-shared mooring cable furthest from the floating equipment platform connected to a non-shared anchor point on the seabed.

[0014] Furthermore, the underwater non-shared anchor point is a gravity anchor, a suction anchor, or a pile anchor.

[0015] Furthermore, the floating equipment platform includes a floating foundation on which wind turbine units are installed.

[0016] Furthermore, the floating foundation comprises a central column, multiple outer columns, and multiple struts. The central column and outer columns are used to provide buoyancy. The outer columns are fixedly connected to each other by struts, and the outer columns are fixedly connected to the central column by struts.

[0017] Compared with existing technologies, the shared mooring system proposed in this technical solution for floating wind farms enables multiple floating equipment platforms to share a single underwater shared anchor point through a shared cable-anchor mechanism. On the one hand, it allows multiple floating equipment platforms to form a whole, reducing the system's motion response under the influence of wind and waves, improving overall stability, and reducing pitch angle and sway acceleration; on the other hand, it reduces the number of mooring cables and anchor points, thus saving mooring costs.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0019] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0020] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0021] Figure 1 This is a schematic diagram of the relevant structure of an embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of three floating equipment platforms sharing a single platform according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the installation of the shared cable-anchor mechanism according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of six floating equipment platforms sharing a single platform according to an embodiment of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0028] See Figures 1 to 4 This utility model embodiment provides a shared mooring system suitable for floating wind farms, including multiple floating equipment platforms 1 and multiple shared cable-anchor mechanisms 2;

[0029] The shared cable-anchor mechanism 2 is connected to the shared anchor point on the seabed;

[0030] The shared cable-anchor mechanism 2 is installed between multiple floating equipment platforms 1, and the shared cable-anchor mechanism 2 is connected to the floating equipment platforms 1 so that multiple floating equipment platforms 1 share a single underwater shared anchor point.

[0031] This technical solution uses a shared cable-anchor mechanism 2 to enable multiple floating equipment platforms 1 to share a single underwater shared anchor point. On the one hand, this allows multiple floating equipment platforms 1 to form a unified whole, reducing the system's motion response under the influence of wind and waves, improving overall stability, and reducing pitch angle and sway acceleration. On the other hand, it reduces the number of mooring cables and anchor points, saving mooring costs.

[0032] In some embodiments, adjacent floating equipment platforms 1 are interconnected via a shared cable-anchor mechanism 2. The shared cable-anchor mechanism 2 enables the floating equipment platforms 1 to restrain each other, allowing multiple floating equipment platforms 1 to form a whole and improving overall stability.

[0033] In some embodiments, the shared cable-anchor mechanism 2 includes a hinge structure 21 for connecting to the floating equipment platform 1, and a shared mooring cable 22 is also connected to the hinge structure 21. The end of the shared mooring cable 22 away from the hinge structure 21 is connected to a shared anchor point on the seabed. By using the hinge structure 21 to connect multiple floating equipment platforms 1, multiple floating equipment platforms 1 are connected to the shared mooring cable 22 through the hinge structure 21, enabling multiple floating equipment platforms 1 to share a single shared mooring cable 22, thereby reducing the use of mooring cables.

[0034] In some embodiments, the articulated structure 21 is provided with a plurality of tensioned mooring cables 23, which are used to connect the floating equipment platform 1 and the articulated structure 21. The tensioned mooring cables 23 can always be kept taut and are suitable for deep water and complex sea conditions.

[0035] In some embodiments, the tensioned mooring cable 23 is arranged in a radiating pattern around the hinge structure 21, with each end of the tensioned mooring cable 23 away from the hinge structure 21 connected to a floating equipment platform 1. This radiating configuration of the tensioned mooring cable 23 allows for the connection of more floating equipment platforms 1, enabling more platforms 1 to share a single mooring cable 22, thus reducing the use of mooring cables and improving system economy.

[0036] In some embodiments, there are three tensioned mooring cables 23 on the hinge structure 21, with an angle of 120° between adjacent tensioned mooring cables 23. This ensures that the angle between every two floating equipment platforms 1 is 120°, forming a triangular configuration, which improves the motion stability of the entire shared system.

[0037] In some embodiments, the floating equipment platform 1 has three connection points for connecting tensioned mooring lines 23. The remaining connection points on the floating equipment platform 1 are connected to non-shared mooring lines 3, with the end of the non-shared mooring line 3 furthest from the floating equipment platform 1 connected to a non-shared anchor point on the seabed. The non-shared mooring line 3 can be in the form of a catenary or a tensioned line.

[0038] See Figures 1 to 3 Taking three floating equipment platforms 1 and one shared cable-anchor mechanism 2 as an example, as shown in the figure, the three floating equipment platforms 1 can share one shared anchor point on the seabed. The shared cable-anchor mechanism 2 connects the three floating equipment platforms 1 and a shared mooring cable 22 connected to the shared anchor point on the seabed. Each floating equipment platform 1 has two remaining connection points for connecting to non-shared mooring cables 3.

[0039] See Figure 4 It consists of 6 floating equipment platforms 1 and 3 shared cable-anchor mechanisms 2.

[0040] It can be seen that by using the shared cable-anchor mechanism 2, the amount of mooring cable used can be significantly reduced.

[0041] In some embodiments, the underwater non-shared anchor point is a gravity anchor, a suction anchor, or a pile anchor.

[0042] In some embodiments, the floating equipment platform 1 includes a floating foundation on which a wind turbine is mounted.

[0043] Specifically, the floating foundation comprises a central column, multiple outer columns, and multiple struts. The central column and outer columns are used to provide buoyancy. The outer columns are fixedly connected to each other by struts, and the outer columns are also fixedly connected to the central column by struts.

[0044] By sharing mooring cables and anchor points, the spatial layout of the sea area can be optimized, allowing multiple floating equipment platforms to form a whole. This reduces the system's motion response under the influence of wind and waves, improves overall stability, reduces pitch angle and sway acceleration, and decreases the motion amplitude of the floating equipment platforms. On the other hand, it can reduce the number of mooring cables and anchor points, thus saving mooring costs.

[0045] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A shared mooring system suitable for floating wind farms, comprising multiple floating equipment platforms (1), characterized in that, It also includes multiple shared cable-anchor mechanisms (2); The shared cable-anchor mechanism (2) is connected to the shared anchor point on the seabed; The shared cable-anchor mechanism (2) is arranged between multiple floating equipment platforms (1) and is connected to the floating equipment platforms (1) so that multiple floating equipment platforms (1) share a single underwater shared anchor point.

2. A shared mooring system suitable for floating wind farms according to claim 1, characterized in that, Adjacent floating equipment platforms (1) are interconnected via a shared cable-anchor mechanism (2).

3. A shared mooring system suitable for floating wind farms according to claim 1 or 2, characterized in that, The shared cable-anchor mechanism (2) includes a hinge structure (21) for connecting to a floating equipment platform (1), and a shared mooring cable (22) is also connected to the hinge structure (21), with one end of the shared mooring cable (22) away from the hinge structure (21) connected to a shared anchor point on the seabed.

4. A shared mooring system suitable for floating wind farms according to claim 3, characterized in that, The articulated structure (21) is provided with a plurality of tensioned mooring cables (23), which are used to connect the floating equipment platform (1) and the articulated structure (21).

5. A shared mooring system suitable for floating wind farms according to claim 4, characterized in that, The tensioned mooring cable (23) is arranged in a radiating pattern with the hinge structure (21) as the center, and the end of the tensioned mooring cable (23) away from the hinge structure (21) is connected to a floating equipment platform (1).

6. A shared mooring system suitable for floating wind farms according to claim 4, characterized in that, There are three tensioned mooring cables (23) on the hinge structure (21), and the included angle between adjacent tensioned mooring cables (23) is 120°.

7. A shared mooring system suitable for floating wind farms according to claim 6, characterized in that, The floating equipment platform (1) has three connection points for connecting tensioned mooring cables (23). The remaining connection points on the floating equipment platform (1) are connected to non-shared mooring cables (3), with the end of the non-shared mooring cable (3) away from the floating equipment platform (1) connected to a non-shared anchor point on the seabed.

8. A shared mooring system suitable for floating wind farms according to claim 7, characterized in that, The underwater non-shared anchor points are gravity anchors, suction anchors, or pile anchors.

9. A shared mooring system suitable for floating wind farms according to claim 1, characterized in that, The floating equipment platform (1) includes a floating foundation on which a wind turbine is installed.

10. A shared mooring system suitable for floating wind farms according to claim 9, characterized in that, The floating foundation consists of a central column, multiple outer columns, and multiple struts. The central column and outer columns are used to provide buoyancy. The outer columns are fixedly connected to each other by struts, and the outer columns are also fixedly connected to the central column by struts.

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