Mooring system and wind generating set

Abstract

The utility model relates to a mooring system and a wind generating set, the mooring system is used for being connected with a floating foundation, the mooring system comprises a first mooring assembly and a second mooring assembly, the first mooring assembly comprises a first anchor chain and a first counterweight part, the first counterweight part is connected to the first anchor chain, the first anchor chain comprises a first end part and a second end part, and the first end part is used for being connected with the floating foundation; the second mooring assembly comprises a fiber cable and a floating body, the floating body is arranged on the fiber cable, and one end of the fiber cable is connected with the second end of the first anchor chain; the third mooring assembly comprises a traction section and an anchoring part, one end of the traction section is connected with the end, away from the first anchor chain, of the fiber cable, the other end of the traction section is connected with the anchoring part, and the traction section comprises one of a steel wire rope and a second anchor chain. The embodiment of the utility model provides a mooring system and a wind generating set, the mooring system can be suitable for shallow water requirements, and the reliability of the mooring system can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wind power technology, in particular to a mooring system and wind turbine generator unit. BACKGROUND

[0002] The mooring system of the wind turbine generator unit is mainly used for offshore wind turbine generator unit, and plays a role of fixing the position of the wind turbine. The offshore situation is complex, and the action force such as wind wave can make the wind turbine shift. The mooring system can firmly connect the wind turbine on the seabed, and resist these external forces. One end of the mooring cable is connected to the floating foundation or support structure, and the other end is connected to the anchoring piece, and the horizontal action force of the wind turbine is transmitted to the seabed.

[0003] However, the mooring system in the related art, especially in the shallow water field, is prone to the problems of floating out of the water and contacting the seabed. When it floats out of the water, there are problems of ultraviolet radiation, accelerated aging, reduced service life of the mooring system and collision of the ship. And long-term contact with the seabed, the attachment of marine organisms will increase the weight of the mooring system, under the influence of marine organisms, the overall mooring system will appear in a suspended state, and in severe cases, most of the seabed can be contacted, causing mooring failure and affecting the reliability of the mooring system. SUMMARY

[0004] The utility model embodiment provides a kind of mooring system and wind turbine generator unit, and mooring system can improve the reliability of itself.

[0005] On the one hand, according to the utility model embodiment, a mooring system is provided, which is used to connect with a floating foundation. The mooring system includes: a first mooring assembly, including a first anchor chain and a first counterweight, the first counterweight being connected to the first anchor chain, the first anchor chain including a first end portion and a second end portion, the first end portion being used to connect with the floating foundation; a second mooring assembly, including a fiber cable and a float, the float being arranged on the fiber cable, one end of the fiber cable being connected to the second end portion of the first anchor chain; and a third mooring assembly, including a traction section and an anchoring piece, one end of the traction section being connected to one end of the fiber cable away from the first anchor chain, the other end of the traction section being connected to the anchoring piece, the traction section including one of a steel wire rope and a second anchor chain.

[0006] According to an aspect of the utility model embodiment, the length of the first anchor chain is L1, the length of the fiber cable is L2, and the length of the traction section is L3, wherein 0.75≤L2 / (L1+L2+L3)≤0.85.

[0007] According to an aspect of the utility model embodiment, the fiber cable includes at least one of a polyester rope, a nylon rope, a polyethylene rope, and a polyester rope.

[0008] According to one aspect of an embodiment of the present invention, the fiber cable includes two end fiber segments and a main fiber segment connected between the two end fiber segments, wherein one end fiber segment is connected to the second end of the first anchor chain, and the other end fiber segment is connected to the traction segment, and the float includes multiple floats, and the end fiber segments and the main fiber segments are both connected to the floats.

[0009] According to one aspect of the embodiment of the present invention, the second mooring assembly further includes a second counterweight, which is disposed between at least two buoys and connected to the fiber cable.

[0010] According to one aspect of an embodiment of the present invention, a fiber cable includes a cable body and a buoyancy block disposed in the cable body, wherein the buoyancy of the buoyancy block is greater than the gravity of the cable body.

[0011] According to one aspect of the embodiment of the present invention, the first mooring assembly further includes a tensioner and a chain stopper, the tensioner is connected between the first end and the chain stopper, and the first end is connected to the floating foundation through the tensioner and the chain stopper.

[0012] According to one aspect of the embodiment of the present invention, the mooring system further comprises a shackle, wherein the shackle is connected between the first anchor chain and the fiber cable; and / or the shackle is connected between the fiber cable and the traction section.

[0013] On the other hand, according to an embodiment of the present invention, a wind turbine generator set is provided, including a floating foundation, the above-mentioned mooring system, the first end of the first anchor chain is connected to the floating foundation, and the anchor is anchored to the seabed; the wind turbine body is connected to the floating foundation.

[0014] According to another aspect of an embodiment of the present invention, the floating foundation includes a connector and a plurality of floating units, the plurality of floating units are spaced apart from each other and are respectively connected to the connector, each floating unit is connected to a plurality of mooring systems, and the mooring systems connected to the same floating unit are dispersed at a predetermined angle to one side away from each other.

[0015] According to the mooring system and the wind turbine generator provided by the embodiment of the utility model, the mooring system comprises a first mooring assembly, a second mooring assembly and a third mooring assembly, the first mooring assembly comprises a first anchor chain and a first counterweight arranged on the first anchor chain, the second mooring assembly comprises a fiber cable and a float arranged on the fiber cable, the third mooring assembly comprises a traction section and an anchoring piece arranged on the traction section, the traction section comprises one of a steel wire rope and a second anchor chain, one end of the fiber cable is connected with the second end of the first anchor chain and the other end is connected with the traction section, the first end of the first anchor chain, which is away from the fiber cable, is used for being connected with a floating foundation, the anchoring piece can be inserted and fixed on a seabed, the mooring system provided by the embodiment of the application can utilize the low rigidity characteristic of the fiber cable, cooperate with the form of the first anchor chain in the front section, the steel wire rope in the rear section or the second anchor chain, that is, utilize the bottom-lying design of the front section and the rear section, and cooperate with the arrangement of the first counterweight and the float, so that the mooring system can be used for the shallow water mooring of the wind turbine generator and ensure that the fiber rope cannot float out of the water surface or contact the seabed, thereby improving the reliability of the permanent mooring of the shallow water mooring system. BRIEF DESCRIPTION OF DRAWINGS

[0016] The features, advantages, and technical effects of the exemplary embodiments of the utility model will be described below with reference to the drawings.

[0017] Figure 1 is the structural schematic diagram of the wind turbine generator of one embodiment of the utility model;

[0018] Figure 2 is the cooperation schematic diagram of the mooring system and the floating foundation of one embodiment of the utility model;

[0019] Figure 3 is the structural schematic diagram of the second mooring assembly of one embodiment of the utility model;

[0020] Figure 4 is the structural schematic diagram of the first mooring assembly of one embodiment of the utility model;

[0021] Figure 5 is the cooperation schematic diagram of the mooring system and the floating foundation of another embodiment of the utility model.

[0022] Marking description:

[0023] 100, mooring system;

[0024] 10, first mooring assembly; 11, first anchor chain; 12, first counterweight; 13, tensioner; 14, chain stopper;

[0025] 20, second mooring assembly; 21, fiber cable; 211, end fiber section; 212, main fiber section; 22, float; 221, floating cylinder;

[0026] 30 third mooring assembly; 31 tow segment; 32 anchor;

[0027] 40 shackle; 41 first shackle; 42 second shackle; 43 fourth shackle;

[0028] 200 floating foundation; 201 connecting body; 202 floating unit;

[0029] 300 wind turbine body; 301 tower; 302 nacelle; 303 generator; 304 impeller; 304a hub; 304b blade;

[0030] 400 seabed.

[0031] In the drawings, the same components are designated by the same reference numerals. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0032] Features and exemplary embodiments of each aspect of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application, as is apparent to one of ordinary skill in the art. In the drawings and description, well-known structures and techniques have not been shown or described in detail in order not to obscure the application. Also, in the interest of clarity, not all aspects of the application have been shown or described. Furthermore, features, structures or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0033] The orientation words appearing in the following description are the directions shown in the drawings, and do not limit the specific structure of the mooring system and the wind turbine generator set of the present application. In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting" and "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Please refer to Figure 1 and Figure 2As shown, one embodiment of the wind turbine provided by the present application includes a floating foundation 200 and a wind turbine body 300. The wind turbine body 300 includes a tower 301, a nacelle 302, a generator 303 and an impeller 304. The tower 301 is connected to the floating foundation 200. The nacelle 302 is arranged at the top end of the tower 301. The generator 303 is arranged in the nacelle 302. In some examples, the generator 303 can be located outside the nacelle 302. Of course, in some examples, the generator 303 can also be located inside the nacelle 302. The impeller 304 includes a hub 304a and a plurality of blades 304b connected to the hub 304a. The impeller 304 is connected to the rotor of the generator 303 through the hub 304a, thereby driving the rotor to rotate relative to the stator to achieve the power generation requirement of the wind turbine. The floating foundation 200 floats in seawater. In order to limit the movement range thereof, the wind turbine further includes a mooring system 100. The floating foundation 200 is fixed to the seabed 400 through the mooring system 100, thereby achieving the constraint of a certain movement range.

[0035] At present, the floating wind turbine in China mainly concentrates in shallow sea areas with a water depth of about 50 m. With the increasing power of the wind turbine, the bearing capacity requirement of the mooring system 100 is higher and higher. Since the catenary mooring system composed of anchor chains and steel wire ropes has too large rigidity, the elastic movement space of the platform is insufficient, and the platform is easily subjected to excessive wave impact load and fails. Therefore, a rope with low rigidity characteristics needs to be applied to shallow water mooring. After evaluation, a 16 MW floating wind turbine needs a mooring radius of 20 d in a water depth d = 40 m environment. By using the low rigidity characteristics of the cable, the horizontal offset of the platform under extreme conditions can reach a distance of 1 d. When the platform moves towards the anchor point, due to the buoyancy of the floating structure, the cable can be pulled out of the water surface, which exists the problems of ultraviolet radiation, acceleration of fiber aging, reduction of service life of the fiber rope and collision of ships. At the same time, in the shallow water environment, the attachment of marine organisms can increase the weight of the cable, so that the mooring section of the cable appears in a suspended state, and in severe cases, it can contact the seabed, causing the mooring system 100 to fail.

[0036] That is, the mooring system 100 in the related art is prone to the problems of floating out of the water surface and / or contacting the seabed. When it floats out of the water surface, there are problems of ultraviolet radiation, acceleration of aging, reduction of service life of the mooring system 100 and collision of ships. Under the influence of marine organisms, the mooring system 100 as a whole appears in a suspended state, and in severe cases, it can mostly contact the seabed, causing the mooring to fail and affecting the reliability of the mooring system 100.

[0037] Based on this, one embodiment of the present application provides a new mooring system 100, which can be used in the wind turbine generator provided in the above embodiments, and can improve the reliability of the mooring system 100 and the wind turbine generator.

[0038] Please refer to Figures 1 to 4 As shown in the drawings, one embodiment of the present application provides a mooring system 100 for connecting with a floating foundation 200, the mooring system 100 includes a first mooring assembly 10, a second mooring assembly 20 and a third mooring assembly 30. The first mooring assembly 10 includes a first anchor chain 11 and a first weight 12, the first weight 12 is connected to the first anchor chain 11, and the first anchor chain 11 includes a first end and a second end, the first end is used to connect with the floating foundation 200. The second mooring assembly 20 includes a fiber cable 21 and a float 22, the float 22 is arranged on the fiber cable 21, and one end of the fiber cable 21 is connected with the second end of the first anchor chain 11. The third mooring assembly 30 includes a traction section 31 and an anchor 32, one end of the traction section 31 is connected with one end of the fiber cable 21 away from the first anchor chain 11, and the other end of the traction section 31 is connected with the anchor 32, and the traction section 31 includes one of a steel wire rope and a second anchor chain.

[0039] The first mooring assembly 10 can be directly or indirectly connected with the floating foundation 200 through the first end, and the second mooring assembly 20 and the third mooring assembly 30 can be sequentially distributed in a direction away from the first mooring assembly 10, the second mooring assembly 20 is connected between the first mooring assembly 10 and the third mooring assembly 30, and the anchor 32 is connected at one end of the traction section 31 away from the fiber cable 21 and anchored on the seabed 400.

[0040] The mooring system 100 provided in one embodiment of the present application can utilize the low stiffness characteristic of the fiber cable 21, cooperate with the front first anchor chain 11 and the rear steel wire rope or anchor chain, that is, utilize the front and rear bottom-lying design, and cooperate with the arrangement of the first weight 12 and the float 22, so as to be used for shallow water mooring of the wind turbine generator, and ensure that the fiber rope cannot float out of the water or contact the seabed, thereby improving the reliability of the permanent mooring of the shallow water mooring system 100. Meanwhile, the arrangement of the first weight 12 can improve the pretension of the mooring system 100 and reduce the horizontal deviation of the floating foundation 200. The catenary effect of the first mooring assembly 10 is increased, the dynamic tension of the mooring system 100 under extreme working conditions is reduced, and the carrying capacity of the mooring system 100 is improved. Moreover, the buoyancy of the float 22 can be balanced, and the situation that the second mooring assembly 20 floats out of the water when the floating foundation 200 moves in the direction of the anchor 32 is prevented.

[0041] In some optional embodiments, the mooring system 100 provided by an embodiment of the present application, the length of the first anchor chain 11 is L1, the length of the fiber cable 21 is L2, and the length of the traction section 31 is L3, wherein 0.75≤L2 / (L1+L2+L3)≤0.85.

[0042] The length of the first anchor chain 11 is L1, which can be understood as the vertical distance between the two ends of the first anchor chain 11 along the length direction of the first anchor chain 11 when the first anchor chain 11 is straightened.

[0043] The length of the fiber cable 21 is L2, which can be understood as the vertical distance between the two ends of the fiber cable 21 along the length direction of the fiber cable 21 when the fiber cable 21 is straightened.

[0044] The length of the traction section 31 is L3, which can be understood as the vertical distance between the two ends of the traction section 31 along the length direction of the traction section 31 when the traction section 31 is straightened.

[0045] Optionally, L2 / (L1+L2+L3) can be 0.8.

[0046] The mooring system 100 provided by an embodiment of the present application can improve the length of the fiber cable 21, better utilize the low rigidity characteristics of the fiber cable 21, and improve the carrying capacity of the mooring system 100 through the above arrangement. The arrangement of the fiber cable 21 can reduce the buoyancy requirement of the floating body 22 and reduce the cost.

[0047] In some optional embodiments, the mooring system 100 provided by an embodiment of the present application, the fiber cable 21 includes at least one of a polyester rope, a nylon rope, a polyethylene rope, and a polyester rope, and the fiber cable 21 can also include a combination of two or more of the above types of ropes.

[0048] The mooring system 100 provided by an embodiment of the present application can meet the low rigidity requirement of the second mooring assembly 20 and has low cost and long service life through the above arrangement.

[0049] Please refer to Figure 3 In some optional embodiments, the mooring system 100 provided by an embodiment of the present application, the floating body 22 includes a plurality of floating cylinders 221, the plurality of floating cylinders 221 are distributed at intervals in the extension direction of the fiber cable 21, and each floating cylinder 221 is connected with the fiber cable 21.

[0050] The number of floating cylinders 221 can be set according to the specific length of the fiber cable 21, and the plurality of floating cylinders 221 can be arranged along the extension length direction of the fiber cable 21. Each floating cylinder 221 can be connected with the fiber cable 21 in a detachable manner, so as to facilitate position adjustment or replacement, for example, can be connected in a hooking, locking, or the like manner.

[0051] The mooring system 100 provided by the embodiment of the present application, the buoyant cylinder 221 lifts the fiber cable 21 upward by buoyancy, prevents the fiber cable 21 from touching the bottom, and effectively avoids the attachment of marine organisms to increase the weight of the mooring system 100, thereby ensuring the reliability of the mooring.

[0052] Please refer to Figure 3 As shown in the figure, in some optional embodiments, the fiber cable 21 comprises two end fiber segments 211 and a main fiber segment 212 connected between the two end fiber segments 211, wherein one end fiber segment 211 is connected with the second end of the first anchor chain 11, and the other end fiber segment 211 is connected with the traction segment 31, and the end fiber segment 211 and the main fiber segment 212 are both connected with the buoyant cylinder 221.

[0053] The end fiber segment 211 and the main fiber segment 212 can each correspondingly be provided with the buoyant cylinder 221, of course, the two adjacent ones can also share the buoyant cylinder 221, and when sharing the buoyant cylinder 221, the buoyant cylinder 221 can be located at the butt joint position of the two.

[0054] By segmenting the fiber cable 21, the construction of the mooring system 100 is facilitated, and the construction difficulty is reduced.

[0055] In some optional embodiments, the mooring system 100 provided by the embodiment of the present application, the second mooring assembly 20 further comprises a second counterweight (not shown in the figure), and the second counterweight is arranged between at least two buoyant cylinders 221 and connected with the fiber cable 21.

[0056] The second counterweight can optionally comprise a structure such as the buoyant cylinder 221.

[0057] The mooring system 100 provided by the embodiment of the present application, through the above arrangement, can adjust the height of the fiber cable 21 according to the working condition of the mooring system 100, which can avoid touching the bottom and also avoid being exposed to the water surface, thereby ensuring the reliability of the mooring system 100.

[0058] In some optional embodiments, the mooring system 100 provided by the embodiment of the present application, the fiber cable 21 can adopt a whole fiber cable structure, of course, this is an optional implementation, and in some embodiments, the fiber cable 21 can also comprise a cable body and a float arranged in the cable body, and the buoyancy of the float is greater than the weight of the cable body.

[0059] The connection requirement between the cable body and the float can be ensured by weaving the float inside the cable body.

[0060] The mooring system 100 provided by the embodiment of the present application, through the above arrangement, makes the fiber cable 21 itself have a certain buoyancy, which can reduce the volume and the number of the float 22 and reduce the cost.

[0061] In some optional embodiments, the mooring system 100 provided by one embodiment of the present application, the first mooring assembly 10 further comprises a tensioner 13 and a chain stopper 14, the tensioner 13 is connected between the first end and the chain stopper 14, and the first end is connected to the floating foundation 200 through the tensioner 13 and the chain stopper 14.

[0062] Referring to Figure 4 As shown in the figure, optionally, one end of the chain stopper 14 can be fixedly connected to the floating foundation 200 by welding or the like, and the other end of the chain stopper 14 is hingedly connected to the tensioner 13. The tensioner 13 is connected to the first end of the first anchor chain 11, and is used to tension the whole composed of the first mooring assembly 10, the second mooring assembly 20 and the third mooring assembly 30.

[0063] The mooring system 100 provided by one embodiment of the present application can not only ensure the connection requirement between the mooring system 100 and the floating foundation 200, but also ensure the tension requirement of the whole composed of the first mooring assembly 10, the second mooring assembly 20 and the third mooring assembly 30, thereby reducing the probability of the mooring system 100 touching the bottom or floating out of the water.

[0064] In some optional embodiments, the mooring system 100 provided by one embodiment of the present application, the second end of the first anchor chain 11 connected to the fiber cable 21 is reserved with a reserved section, the reserved section is matched with the first weight 12, and the probability of the fiber cable 21 contacting the seabed can be reduced. Optionally, the length of the reserved section can be 0.25 times the water depth.

[0065] In some optional embodiments, the mooring system 100 provided by one embodiment of the present application, the mooring system 100 further comprises a shackle 40, and the shackle 40 is connected between the first anchor chain 11 and the fiber cable 21. Optionally, the shackle 40 is connected between the fiber cable 21 and the traction section 31.

[0066] Optionally, the shackle 40 can be an asymmetric shackle.

[0067] The mooring system 100 provided by one embodiment of the present application, the shackle 40 is arranged, which is beneficial to the connection between the corresponding ends of the first anchor chain 11 and the fiber cable 21, and beneficial to the connection between the corresponding ends of the fiber cable 21 and the traction section 31, so that the connection strength and reliability can be ensured, and the construction difficulty can be reduced.

[0068] The wind turbine provided by the embodiment of the present application can be used for shallow water mooring of the wind turbine by using the low rigidity characteristics of the fiber cable 21, the first anchor chain 11, the steel wire rope or the second anchor chain, the bottom-lying design of the front and rear sections, and the first counterweight 12 and the float 22, and can ensure that the fiber rope cannot float out of the water or contact the seabed, thereby improving the reliability of the permanent mooring of the shallow water mooring system 100.

[0069] Referring to Figure 5 In some optional embodiments, the wind turbine provided by the embodiment of the present application includes the connecting body 201 and the plurality of floating units 202, the plurality of floating units 202 are arranged at intervals and connected to the connecting body 201, and the plurality of mooring systems 100 are connected to each floating unit 202, and the mooring systems 100 connected to the same floating unit 202 are arranged at a predetermined angle away from each other.

[0070] Optionally, the plurality of floating units 202 can be arranged at intervals around the central axis, and can be arranged at intervals and uniformly. The connecting body 201 can include a frame structure composed of a plurality of connecting rods, and the connecting body 201 is connected to the plurality of floating bodies 22 and fixes the relative positions of the floating bodies 22. The wind turbine body 300 can be connected to one of the floating units 202, and the wind turbine body 300 can be connected to the middle part of the connecting body 201, and the plurality of floating bodies 22 are arranged at intervals and uniformly around the wind turbine body 300.

[0071] Optionally, the number of the mooring systems 100 connected to the same floating unit 202 can be two, three or more, and when the number is more than three, the angle between the adjacent two mooring systems 100 can be set according to the fixing requirements, and the angle between the adjacent two mooring systems 100 connected to the same floating unit 202 can be equal.

[0072] The wind turbine provided by the embodiment of the present application can ensure the reliability of the wind turbine, thereby ensuring the power generation benefit.

[0073] The system provided by the embodiment of the present application can adopt the following construction method:

[0074] 1) Partial mooring component pre-assembly. Onshore or on installation vessel, first connect the tow segment 31 and the anchor 32 by the first shackle 41, then connect the tow segment 31 and one end of the end fiber segment 211 by the second shackle 42, the other end of the end fiber segment 211 can be connected to the corresponding floatation buoy 221 of the floating body 22 by the third shackle; onshore, first weld the stopper 14 at the predetermined position of the floating foundation 200, then connect the tensioner 13 and the stopper 14 by hinged connection.

[0075] 2) Anchor installation. Install a predetermined number of anchors 32, for example nine, at predetermined positions. When installing one of the anchors 32, simultaneously use the tugboat to pull the floating body 22 so that the pre-installed mooring line segment does not affect the installation of the anchor 32. After the installation of the anchor 32 is completed, the floatation buoy 221 can be released, and the end fiber segment 211 will be suspended vertically in the water under the action of the weight of the tow segment 31 and the buoyancy of the floatation buoy 221, without floating out of the water and contacting the seabed.

[0076] 3) Fore segment anchor chain installation. Onshore or on installation vessel, connect one end of the first anchor chain 11 and one end of the other end fiber segment 211 by the fourth shackle 43. After the tugboat drags the floating foundation 200 to the predetermined position, the floating foundation 200 is fixed by one or two tugboats, and then the installation vessel assembles one end of the first anchor chain 11 to the tensioner 13 by the crane. Then, the shackle 40 is pulled to the appropriate position by the tugboat.

[0077] 4) Mid segment fiber cable 21 installation. Connect one end of the end fiber segment 211 to the asymmetric shackle on the tugboat. Gradually release the end fiber segment 211 by using the fairlead. After the fifth shackle and the floatation buoy 221 are installed at the other end of the end fiber segment 211, repeat the above operation until the terminal end of the last segment of the main fiber segment 212 is released and pulled by the tugboat above the floatation buoy connected to the anchor 32. Salvage the floatation buoy 221, and connect the main fiber segment 212 and the end fiber segment 211 by another shackle connection.

[0078] 5) Grouped installation of mooring lines. After completing one mooring system 100, install the other mooring systems 100 in sequence according to the grouping order.

[0079] 6) Apply pre-tension. Install the first weight 12 on the corresponding first anchor chain 11 of each mooring system 10 in sequence, then pull the anchor chain end of the line tensioner 13 by the crane on the installation vessel, so that the pre-tension on each mooring line reaches the designed value (5-20%).

[0080] The mooring system 100 provided by one embodiment of the present application is provided with two bottom-lying sections, so that the fiber cable 21 cannot float out of the water, and the fiber cable 21 is provided with the floating body 22 in the middle, so that the fiber cable 21 cannot contact the sea bottom, a plurality of main fiber sections 212 can be provided and a floating body is arranged in the middle of each section, so as to lengthen the length of the fiber cable 21 and improve the carrying capacity of the mooring system 100 of the fiber cable 21, so as to meet the mooring needs of large-capacity floating wind turbines.

[0081] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to the present application and equivalent components can be substituted without departing from the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mooring system for connection to a floating foundation (200), characterized in that: The mooring system (100) comprises: A first mooring assembly (10) comprises a first anchor chain (11) and a first counterweight (12), wherein the first counterweight (12) is connected to the first anchor chain (11), and the first anchor chain (11) comprises a first end and a second end, wherein the first end is used to be connected to a floating foundation (200); a second mooring assembly (20) comprising a fiber cable (21) and a buoy (22), wherein the buoy (22) is arranged on the fiber cable (21), and one end of the fiber cable (21) is connected to the second end of the first anchor chain (11); A third mooring component (30) includes a traction section (31) and an anchor (32), one end of the traction section (31) is connected to an end of the fiber cable (21) facing away from the first anchor chain (11), and the other end of the traction section (31) is connected to the anchor (32), and the traction section (31) includes one of a steel wire rope and a second anchor chain.

2. The mooring system according to claim 1, characterized in that The length dimension of the first anchor chain (11) is L1, the length dimension of the fiber cable (21) is L2, and the length dimension of the traction section (31) is L3, wherein 0.75≤L2 / (L1+L2+L3)≤0.

85.

3. The mooring system according to claim 1, characterized in that The fiber cable (21) comprises at least one of a polyester rope, a nylon rope, a polyethylene rope, and a polyester rope.

4. The mooring system according to claim 1, characterized in that The fiber cable (21) includes two end fiber segments (211) and a main fiber segment (212) connected between the two end fiber segments (211), wherein one of the end fiber segments (211) is connected to the second end of the first anchor chain (11), and the other end fiber segment (211) is connected to the traction segment (31); the floating body (22) includes a plurality of buoys (221), and the end fiber segments (211) and the main fiber segment (212) are both connected to the buoys (221).

5. The mooring system according to claim 4, characterized in that The second mooring assembly (20) further comprises a second counterweight, which is arranged between at least two of the buoys (221) and is connected to the fiber cable (21).

6. The mooring system according to claim 1, characterized in that The fiber cable (21) comprises a cable body and a buoyancy block arranged in the cable body, wherein the buoyancy of the buoyancy block is greater than the gravity of the cable body.

7. The mooring system according to any one of claims 1 to 6, characterized in that: The first mooring assembly (10) further includes a tensioner (13) and a chain stopper (14), wherein the tensioner (13) is connected between the first end portion and the chain stopper (14), and the first end portion is connected to the floating foundation (200) via the tensioner (13) and the chain stopper (14).

8. The mooring system according to any one of claims 1 to 6, characterized in that: The mooring system (100) further comprises a shackle (40), wherein the shackle (40) is connected between the first anchor chain (11) and the fiber cable (21); and / or the shackle (40) is connected between the fiber cable (21) and the traction section (31).

9. A wind turbine generator set, characterized in that: include: Floating foundation (200); The mooring system (100) according to any one of claims 1 to 8, wherein the first end of the first anchor chain (11) is connected to the floating foundation (200), and the anchor (32) is anchored to the seabed (400); The fan body (300) is connected to the floating foundation (200).

10. The wind turbine generator set according to claim 9, characterized in that: The floating foundation (200) comprises a connector (201) and a plurality of floating units (202). The plurality of floating units (202) are spaced apart from each other and respectively connected to the connector (201). Each of the floating units (202) is connected to a plurality of mooring systems (100). The mooring systems (100) connected to the same floating unit (202) are dispersed and arranged at a predetermined angle to one side away from each other.

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