Energy storage and mooring system and floating wind turbine foundation

Abstract

The present application belongs to the technical field of mooring system, and particularly relates to a mooring system with energy storage and anchoring functions and a floating wind turbine foundation. The mooring system with energy storage and anchoring functions comprises a floating body floating on the water surface, an energy conversion assembly arranged on the floating body, a counterweight assembly located below the floating body, a connecting block connected to the bottom of the floating body and provided with a wire hole, and a mooring chain penetrating through the wire hole. One end of the mooring chain is anchored to the bottom of the water, and the other end of the mooring chain is connected to the counterweight assembly. The energy conversion assembly is in transmission connection with the counterweight assembly. When the floating body is displaced relative to the anchoring point under the action of waves, the counterweight assembly can move up and down reciprocally. The energy conversion assembly is used for converting the kinetic energy of the counterweight assembly into electric energy. The present application can solve the problem of how to convert wave energy into electric energy.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mooring systems, and particularly relates to a mooring system with energy storage and anchoring functions and a floating wind turbine foundation. BACKGROUND

[0002] Fossil fuels account for 80% of the global energy structure and are expected to account for 50% of the total global energy consumption by 2050. With the rapid growth of the population, the demand for energy has increased significantly, leading to rapid consumption and increasing scarcity of fossil energy, causing increasingly severe environmental problems.

[0003] Wind power is gradually becoming an important part of the future energy structure. Offshore wind energy resources are superior to nearshore wind energy resources, meaning that developing large-capacity wind turbines will bring greater economic benefits. Due to various conditions such as fishing and military facilities, the available wind energy resources in the nearshore area are relatively limited, and as the wind turbine installation area gradually expands, the utilization of nearshore wind energy resources gradually tends to be saturated. In addition, the increase in offshore distance and water depth will significantly increase the cost of platform construction and operation and maintenance, so using large-capacity offshore floating wind turbines will be the inevitable trend of future offshore wind power development.

[0004] However, the existing mooring system of the floating wind turbine has various objective factors such as large size and heavy weight of the designed platform, resulting in a large number of designed mooring chains, excessive bearing capacity of a single mooring chain, harsh material selection requirements, and thus expensive mooring system design and construction. In addition, the existing mooring system usually only considers how to stably constrain the overall floating platform structure in the design, without considering the energy utilization effect, and cannot fully utilize wave energy. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a mooring system with energy storage and anchoring functions and a floating wind turbine foundation, aiming to solve the problem of how to convert wave energy into electrical energy.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0007] In a first aspect, a mooring system with energy storage and anchoring functions is provided. The mooring system includes a floating body floating on the surface of water, an energy conversion assembly arranged on the floating body, a counterweight assembly arranged below the floating body, and a mooring chain slidably arranged on the floating body. One end of the mooring chain is anchored to the bottom of the water, and the other end of the mooring chain is connected to the counterweight assembly. The mooring chain is used to constrain the displacement range of the floating body. The energy conversion assembly is in transmission connection with the counterweight assembly. When the floating body is displaced relative to the anchoring point under the action of waves, the counterweight assembly can move up and down reciprocally. The energy conversion assembly is used to convert the kinetic energy of the counterweight assembly into electrical energy.

[0008] In some embodiments, the energy conversion assembly includes a power generation device including a coil and a magnet. The coil is located within the magnetic field range of the magnet, and the magnet can slide relative to the coil. The mooring system with energy storage and anchoring functions further includes a first connecting rod. One end of the first connecting rod is connected to the counterweight assembly, and the other end of the first connecting rod is connected to the magnet. The magnet can reciprocally move with the counterweight assembly to make the coil cut the magnetic induction lines of the magnet and generate electrical energy.

[0009] In some embodiments, the energy conversion assembly further includes an energy storage device connected to the power generation device. The energy storage device is used to store the electrical energy generated by the power generation device.

[0010] In some embodiments, the counterweight assembly includes a pulley, a weight arranged at the lower end of the pulley, and a second connecting rod connecting the pulley and the weight. Two mooring chains are correspondingly arranged. The two mooring chains are arranged around the bottom of the pulley and are connected at the bottom of the pulley.

[0011] In some embodiments, the energy conversion assembly is arranged on the surface of the floating body away from the counterweight assembly. The floating body is provided with a through hole for the first connecting rod to pass through. The first connecting rod connects the counterweight assembly through the through hole.

[0012] In some embodiments, the bottom surface of the floating body is provided with a buffer structure arranged on the movement path of the counterweight assembly. The buffer structure can be elastically deformed under pressure to buffer the impact of the counterweight assembly.

[0013] In some embodiments, the buffer structure is a spring. The spring is sleeved on the first connecting rod. One end of the spring away from the counterweight assembly is connected to the bottom surface of the floating body.

[0014] In some embodiments, a plurality of said weight assemblies are arranged in intervals, a plurality of said energy conversion assemblies are arranged in intervals, each of said weight assemblies corresponds to one of said energy conversion assemblies, and a plurality of said mooring chains are arranged, each of said mooring chains is connected to one of said weight assemblies.

[0015] In some embodiments, the mooring system with energy storage and anchoring functions further comprises a connecting block connected to the bottom of the floating body, the connecting block is provided with a wire hole, and the mooring chain is arranged in the wire hole.

[0016] In the second aspect, the mooring system with energy storage and anchoring functions is provided.

[0017] The mooring system with energy storage and anchoring functions provided by the application can use the gravity of the weight assembly to offset the buoyancy of the floating wind turbine in the sea, effectively reduce the constraint load of the design of the floating wind turbine, further reasonably reduce the number of mooring chains in the mooring system with energy storage and anchoring functions and the design use load of each mooring chain, and due to the reduction of the design number and design strength of the mooring chain, the design cost is significantly reduced, the overall cost of the floating wind turbine is greatly reduced, and the cost is effectively reduced. In addition, the weight assembly also has the function of a damper, which can consume the force received by the floating wind turbine when the floating wind turbine as a whole is affected by extreme wind and wave load, thereby ensuring the safety and stability of the structure above the sea level. Furthermore, by arranging the energy conversion assembly, when the floating body is displaced by waves, the weight assembly can move up and down under the traction of the mooring chain, and the energy conversion assembly is used to convert the kinetic energy of the weight assembly into electrical energy, thereby realizing the conversion of wave energy into electrical energy, so that the wave energy can be fully utilized. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0019] Figure 1 is the overall structure schematic diagram of the mooring system with energy storage and anchoring functions provided by one of the embodiments of the application;

[0020] Figure 2 is the partial structure schematic diagram of the mooring system with energy storage and anchoring functions provided by the embodiments of the application;

[0021] Figure 3 is the structure schematic diagram of the energy conversion assembly provided by one of the embodiments of the application;

[0022] Figure 4 Figure 1 is a partial structural schematic diagram of a floating body provided by an embodiment of the present application.

[0023] In the drawings, various reference numbers refer to items of the same nature:

[0024] 10, floating body; 11, accommodating cavity; 20, energy conversion assembly; 21, power generation device; 211, coil; 212, magnet; 213, support tube; 22, energy storage device; 30, counterweight assembly; 31, pulley; 32, weight; 33, second connecting rod; 40, mooring chain; 50, connecting block; 51, wire hole; 60, buffer structure; 70, anchoring structure; 80, first connecting rod. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.

[0028] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "underneath" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0029] Please refer to Figures 1 to 4 The embodiment of the present application provides a mooring system with energy storage and anchoring functions, which comprises a floating body 10 floating on the water surface, an energy conversion assembly 20 arranged on the floating body 10, a counterweight assembly 30 located below the floating body 10, and a mooring chain 40 slidably arranged in the floating body 10. One end of the mooring chain 40 is anchored to the water bottom, the other end of the mooring chain 40 is connected to the counterweight assembly 30, and the mooring chain 40 is used to constrain the displacement range of the floating body 10. The energy conversion assembly 20 is in transmission connection with the counterweight assembly 30. When the floating body 10 is displaced relative to the anchoring point under the action of waves, the counterweight assembly 30 can move up and down reciprocatingly, and the energy conversion assembly 20 is used to convert the kinetic energy of the counterweight assembly 30 into electric energy.

[0030] Understandably, the floating body 10 is floating on the water surface under the action of buoyancy, and the counterweight assembly 30 has a certain weight, so that the counterweight assembly 30 sinks into the water under the action of its own gravity, and the position of the counterweight assembly 30 in the water can be raised and lowered up and down. One end of the mooring chain 40 is anchored to the water bottom. Specifically, one end of the mooring chain 40 can be connected to an anchoring structure 70, so that one end of the mooring chain 40 can be anchored to the water bottom through the anchoring structure 70.

[0031] Understandably, when the floating body 10 is affected by waves, the floating body 10 will displace, and the horizontal distance of the floating body 10 from the anchoring point will change, while the length of the mooring chain 40 connecting the anchoring point and the counterweight assembly 30 is fixed, so that the counterweight assembly 30 can move up and down reciprocatingly under the action of the mooring chain 40. For example, when the floating body 10 moves away from the anchoring point, the counterweight assembly 30 moves upward, and when the floating body 10 approaches the anchoring point, the counterweight assembly 30 moves downward. When the counterweight assembly 30 moves up and down reciprocatingly, the energy conversion assembly 20 can convert the kinetic energy of the counterweight assembly 30 into electric energy, so as to realize power generation, thereby being able to supply power to the electrical equipment on the mooring system with energy storage and anchoring functions.

[0032] The energy storage and mooring system provided in this application can use the weight of the counterweight component 30 to offset the buoyancy of the floating wind turbine in the ocean, effectively reducing the constraint load of the floating wind turbine design. This further reduces the number of mooring chains 40 and the design load of each mooring chain 40 in the energy storage and mooring system. Due to the reduction in the number and strength of the mooring chains 40, the design cost is significantly reduced, greatly reducing the overall cost of the floating wind turbine and effectively lowering the overall cost. In addition, the counterweight component 30 also functions as a damper. When the floating wind turbine is subjected to extreme wind, wave and current loads, the counterweight component 30 can absorb the force on the floating wind turbine, ensuring the safety and stability of the structure above the sea level. Furthermore, by setting up the energy conversion component 20, when the floating body 10 is displaced by the waves, the counterweight component 30 can move up and down back and forth under the traction of the mooring chain 40. The energy conversion component 20 is used to convert the kinetic energy of the counterweight component 30 into electrical energy, thereby realizing the conversion of wave energy into electrical energy, so as to make full use of wave energy.

[0033] In some embodiments, such as Figures 1 to 3 As shown, the energy conversion component 20 includes a power generation device 21, which includes a coil 211 and a magnet 212. The coil 211 is located within the magnetic field range of the magnet 212, and the magnet 212 can slide relative to the coil 211. The mooring system, which combines energy storage and mooring functions, also includes a first connecting rod 80. One end of the first connecting rod 80 is connected to the counterweight component 30, and the other end of the first connecting rod 80 is connected to the magnet 212. The magnet 212 can move back and forth with the counterweight component 30 so that the coil 211 cuts the magnetic field lines of the magnet and generates electrical energy, thereby converting the kinetic energy of the counterweight component 30 into electrical energy.

[0034] In some embodiments, the coil 211 surrounds the magnet 212 to form a sliding space for the magnet 212. Specifically, the power generation device 21 includes a support tube 213, the coil 211 is wound around the outer peripheral wall of the support tube 213, and the magnet 212 is disposed inside the support tube 213. In other possible embodiments, the magnet 212 may also slide outside the coil 211. Optionally, the coil 211 may be spirally wound, or the coil 211 may be wound in a plane.

[0035] In some embodiments, the energy conversion assembly 20 further comprises an energy storage device 22 connected to the power generation device 21, the energy storage device 22 being configured to store the electrical energy generated by the power generation device 21. By providing the energy storage device 22 to store the electrical energy, the energy storage device 22 can flexibly allocate the electrical energy according to the power generation of the power generation device 21 and the power demand, so as to realize the optimal allocation of energy. Since the power generation of the power generation device 21 can not completely match the actual load demand, when the load is low, if the power generation device 21 continues to generate power at a high power, it will cause energy waste. The energy storage device 22 can store the excess electrical energy when the load is low, and release the electrical energy when the load is high, so that the power generation device 21 can more stably operate in the high-efficiency power generation interval, and the energy utilization efficiency of the entire power generation system is improved.

[0036] Alternatively, the energy storage device 22 can be an electrochemical capacitor. The electrochemical capacitor refers to a new type of energy storage element based on high specific surface area carbon materials, metal oxides and conductive polymers and other electrode materials. Compared with traditional capacitors, the electrochemical capacitor has larger capacity, higher energy, wider working temperature range and extremely long service life. Of course, in other possible embodiments, the energy storage device 22 can also be a storage battery. The storage battery has stable performance and high reliability, and can operate stably for a long time under various environmental conditions, providing reliable protection for the energy storage device 22. In addition, the storage battery can be repeatedly used many times, reducing the impact of discarded batteries on the environment, and can also smoothly output electrical energy to avoid damage to equipment caused by power fluctuations. In other possible embodiments, the energy storage device 22 can also be a lithium battery. The lithium battery has high energy density, can store more energy, provides longer battery life, and has a longer service life and lighter weight, making it more portable in many applications.

[0037] In some embodiments, as shown in FIGS. 1 and 2, the counterweight assembly 30 comprises a pulley 31, a weight 32 arranged at the lower end of the pulley 31, and a second connecting rod 33 connecting the pulley 31 and the weight 32. Two mooring chains 40 are arranged correspondingly, and the two mooring chains 40 are connected at the bottom of the pulley 31. Figure 1 and Figure 2 The mooring chains 40 are arranged correspondingly, and the two mooring chains 40 are connected at the bottom of the pulley 31. Through the pulley 31, the tension of the mooring chain 40 is kept stable, avoiding sudden and excessive tension of the mooring chain 40 when the energy storage and anchoring function combined mooring system is subjected to extreme wind and waves, and improving the horizontal restraint capability of the floating body 10.

[0038] In some embodiments, the energy conversion assembly 20 is arranged on the surface of the floating body 10 away from the weight assembly 30, the floating body 10 is provided with a through hole for the first connecting rod 80 to pass through, and the first connecting rod 80 is connected to the weight assembly 30 through the through hole. By arranging the energy conversion assembly 20 on the surface of the floating body 10 away from the weight assembly 30, i.e., on the top surface of the floating body 10, the energy conversion assembly 20 can be less affected by waves and the like, thereby prolonging the service life of the energy conversion assembly 20.

[0039] In some embodiments, as shown in Figure 1 and Figure 2 , the bottom surface of the floating body 10 is provided with a buffer structure 60, the buffer structure 60 is arranged on the movement path of the weight assembly 30, and the buffer structure 60 can be elastically deformed under pressure to buffer the impact of the weight assembly 30, thereby avoiding the collision between the pulley 31 and the bottom surface of the floating body 10, and through the buffering effect, the impact of the weight assembly 30 can be buffered, thereby prolonging the service life of the weight assembly 30.

[0040] In some embodiments, the buffer structure 60 is a spring, the spring is sleeved on the first connecting rod 80, and one end of the spring away from the weight assembly 30 is connected to the bottom surface of the floating body 10. When the weight assembly 30 moves upward and presses the spring, the spring is compressed to generate a force opposite to the pressing direction of the weight assembly 30, thereby buffering the impact of the weight assembly 30. In addition, when the weight assembly 30 moves downward, the spring pushes the weight assembly 30 to move downward under the elastic restoring force of the spring, the weight assembly 30 obtains more energy and has more kinetic energy, thereby making the finally converted electric energy and stored energy more, and further improving the energy utilization rate.

[0041] In some embodiments, as shown in Figure 1 , a plurality of weight assemblies 30 are arranged at intervals, a plurality of energy conversion assemblies 20 are arranged at intervals, each weight assembly 30 corresponds to each energy conversion assembly 20 one by one, and a plurality of mooring chains 40 are arranged, each mooring chain 40 is connected to each weight assembly 30. Understandably, the energy conversion assembly 20 corresponds to the weight assembly 30 one by one, the number of the energy conversion assembly 20 is the same as that of the weight assembly 30, the connecting block 50 corresponds to the mooring chain 40 one by one, and the number of the connecting block 50 is the same as that of the mooring chain 40. Alternatively, the plurality of weight assemblies 30 can be arranged circumferentially around the floating body 10.

[0042] By connecting the plurality of weight assemblies 30 to the plurality of energy conversion assemblies 20 respectively, each energy conversion assembly 20 can generate electricity, thereby improving the energy conversion efficiency. In addition, by arranging the plurality of weight assemblies 30 and the plurality of mooring chains 40, the floating body 10 can be pulled in multiple directions, so that the tension on the floating body 10 is more balanced, thereby further improving the safety of the energy storage and anchoring function combined mooring system.

[0043] Optionally, in the embodiments of the present application, the number of energy conversion assemblies 20 and counterweight assemblies 30 is three, and the floating body 10 is pulled in three directions, thereby further improving the stability of the energy storage and anchoring combined mooring system. Of course, in other possible embodiments, the number of energy conversion assemblies 20 and counterweight assemblies 30 can also be four, five, six or more, and the number of energy conversion assemblies 20 and counterweight assemblies 30 is not uniquely limited in the embodiments of the present application.

[0044] In some embodiments, the energy storage and anchoring combined mooring system further comprises a connecting block 50 connected to the bottom of the floating body 10, and the connecting block 50 is provided with a wire hole 51, and the mooring chain 40 is arranged in the wire hole 51. By arranging the wire hole 51, a sliding limiting channel for the mooring chain 40 is formed, thereby being able to constrain the displacement range of the floating body 10.

[0045] In some embodiments, the floating body 10 has a receiving cavity 11, and the energy conversion assembly 20 is arranged in the receiving cavity 11, that is, a protective structure is formed outside the floating body 10, which covers the outside of the energy conversion assembly 20. The protective structure can resist the interference of wind and waves on the receiving cavity 11, avoid damage or pollution of the energy conversion assembly 20, thereby improving the service life of the energy conversion assembly 20.

[0046] The present application also proposes a floating wind turbine foundation, which comprises an energy storage and anchoring combined mooring system. The specific structure of the energy storage and anchoring combined mooring system is referred to the above-mentioned embodiments. Since the floating wind turbine foundation adopts all the technical solutions of the above-mentioned embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0047] In summary, the energy storage and anchoring function compatible mooring system provided by the present application can use the gravity of the counterweight assembly 30 to offset the buoyancy of the floating wind turbine in the ocean, effectively reducing the constraint load of the design of the floating wind turbine, further reasonably reducing the number of mooring chains 40 in the energy storage and anchoring function compatible mooring system and the design use load size of each mooring chain 40. Due to the reduction of the design number and design strength of the mooring chain 40, the design cost is significantly reduced, the overall cost of the entire floating wind turbine is greatly reduced, and the cost is effectively reduced. In addition, the counterweight assembly 30 also has the function of acting as a damper. When the entire floating wind turbine is affected by extreme wind and wave load, the counterweight assembly 30 can consume the force received by the floating wind turbine, ensuring the safety and stability of the structure above sea level. Moreover, by setting the energy conversion assembly 20, when the floating body 10 is displaced by waves, the counterweight assembly 30 can move up and down reciprocally under the traction of the mooring chain 40. The energy conversion assembly 20 is used to convert the kinetic energy of the counterweight assembly 30 into electrical energy, thereby realizing the conversion of wave energy into electrical energy, so as to fully utilize the wave energy.

[0048] The above is only an optional embodiment of the present application and is not intended to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A mooring system that combines energy storage and mooring functions, characterized in that: The system includes a floating body (10) that floats on the water surface, an energy conversion component (20) disposed on the floating body (10), a counterweight component (30) located below the floating body (10), and a mooring chain (40) slidably threaded through the floating body (10). One end of the mooring chain (40) is anchored to the bottom of the water, and the other end of the mooring chain (40) is connected to the counterweight component (30). The mooring chain (40) is used to constrain the displacement range of the floating body (10). The energy conversion component (20) is connected to the counterweight component (30) in a driving connection. When the floating body (10) is displaced relative to the anchor point due to the action of waves, the counterweight component (30) can move up and down reciprocally. The energy conversion component (20) is used to convert the kinetic energy of the counterweight component (30) into electrical energy. The energy conversion component (20) includes a power generation device (21), which includes a coil (211) and a magnet (212). The coil (211) is located within the magnetic field range of the magnet (212), and the magnet (212) can slide relative to the coil (211). The coil (211) surrounds the outside of the magnet (212). The mooring system, which combines energy storage and mooring functions, also includes a first connecting rod (80). One end of the first connecting rod (80) is connected to the counterweight component (30), and the other end of the first connecting rod (80) is connected to the magnet (212). The magnet (212) can reciprocate with the counterweight component (30) so that the coil (211) cuts the magnetic field lines of the magnet (212) and generates electrical energy.

2. The mooring system combining energy storage and mooring functions as described in claim 1, characterized in that: The energy conversion component (20) also includes an energy storage device (22) connected to the power generation device (21), the energy storage device (22) being used to store the electrical energy generated by the power generation device (21).

3. The mooring system combining energy storage and mooring functions as described in claim 1, characterized in that: The counterweight assembly (30) includes a pulley (31), weights (32) spaced apart at the lower end of the pulley (31), and a second connecting rod (33) connecting the pulley (31) and the weights (32). Two mooring chains (40) are provided, which are wound around the bottom of the pulley (31) and connected to the bottom of the pulley (31).

4. The mooring system combining energy storage and mooring functions as described in claim 1, characterized in that: The energy conversion component (20) is disposed on the surface of the float (10) away from the counterweight component (30). The float (10) has a through hole through which the first connecting rod (80) passes. The first connecting rod (80) is connected to the counterweight component (30) through the through hole.

5. The mooring system combining energy storage and mooring functions as described in claim 1, characterized in that: The bottom surface of the floating body (10) is provided with a buffer structure (60), which is located on the moving path of the counterweight assembly (30). The buffer structure (60) can be compressed to generate elastic deformation in order to buffer the impact of the counterweight assembly (30).

6. The mooring system combining energy storage and mooring functions as described in claim 5, characterized in that: The buffer structure (60) is a spring, which is sleeved on the first connecting rod (80), and the end of the spring away from the counterweight assembly (30) is connected to the bottom surface of the floating body (10).

7. The mooring system combining energy storage and mooring functions as described in any one of claims 1 to 6, characterized in that: Multiple counterweight components (30) are spaced apart, multiple energy conversion components (20) are spaced apart, each counterweight component (30) corresponds to each energy conversion component (20), and multiple mooring chains (40) are provided, each mooring chain (40) is connected to each counterweight component (30).

8. The mooring system combining energy storage and mooring functions as described in any one of claims 1 to 6, characterized in that: The mooring system, which combines energy storage and mooring functions, also includes a connecting block (50) connected to the bottom of the floating body (10). The connecting block (50) has a cable routing hole (51), through which the mooring chain (40) passes.

9. A floating wind turbine foundation, characterized in that, Including a mooring system that combines energy storage and mooring functions as described in any one of claims 1 to 8.

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