Floating type wind and wave fusion power generation system

Abstract

The invention provides a floating type storm fusion power generation system which comprises a plurality of floating type wind driven generators, a mooring floating assembly, an anchoring foundation and a wave energy power generation device, the floating type wind driven generators are distributed around the mooring floating assembly and connected with the mooring floating assembly, and the anchoring foundation is connected with the wave energy power generation device. The multiple floating type wind driven generators and the mooring floating assemblies are connected with the corresponding anchoring foundations, and the anchoring foundations are used for being fixed to a seabed. The floating type wind driven generator comprises a wind driven generator body and a supporting floating seat, the supporting floating seat and the mooring floating assembly are each provided with a wave energy power generation device, and the wave energy power generation devices are used for making contact with seawater and converting wave energy into electric energy. The mooring system is simplified, the stability is higher, the power generation utilization rate of the ocean space is increased, and the power generation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and particularly to a floating wind-wave integrated power generation system. Background Art

[0002] In order to maximize the utilization rate of ocean resources, offshore wind power will surely move towards deeper and farther waters in the future, and floating wind turbines will replace fixed wind turbines. In the current mooring schemes for floating wind power, the construction and installation and the mooring system account for almost half of the cost of floating offshore wind power; the cost of building a wave energy power generation device alone is high, and integrating a wave energy power generation device onto a floating wind turbine is expected to reduce the motion response of the floating wind turbine and improve its power generation efficiency; the existing scheme is to integrate a wave energy power generation device at the tower barrel of a floating wind turbine. However, in terms of mooring, the conventional method is that a single floating wind turbine uses multiple mooring connectors to directly connect to the seabed anchoring foundation to form a radial mooring layout to ensure stability. Although the cooperation of multiple devices is comprehensively considered; it fails to reduce the construction and installation and mooring costs to the greatest extent, nor can it maximize the resource utilization efficiency of a unit ocean site, and there are mainly the following defects:

[0003] 1. Low utilization efficiency of ocean sites and resources: Affected by the wake effect of the wind farm, a certain distance needs to be reserved between floating wind turbines in a traditional floating wind farm to prevent mutual interference and ensure the operation efficiency. However, this move results in the fact that in a limited ocean space, energy is difficult to be intensively utilized to a higher degree, the ocean sites are not fully saved, and the overall utilization efficiency of ocean resources is also restricted and it is difficult to achieve effective improvement.

[0004] 2. High mooring cost: The independent mooring systems mean repeated construction of foundation anchoring, a large number of mooring connectors and other facilities, and the costs of materials, installation and maintenance remain high. Especially when planning large-scale deep-sea energy farms, the economic feasibility is greatly reduced.

[0005] 3. Insufficient stability and reliability: The floating wind turbines adopt an independent mooring method. When encountering extreme sea conditions, they can only bear the external impact alone. Due to the lack of a cooperative buffering mechanism, faults such as mooring overload and damage to power generation equipment may occur, which will in turn affect the overall operation efficiency and safety. Summary of the Invention

[0006] The present invention provides a floating wind-wave integrated power generation system to overcome the above defects, create an efficient ocean energy utilization system that integrates wind power and wave energy power generation and shares mooring, maximize the utilization rate of a unit ocean site, deeply integrate the two energy collection and conversion processes, optimize the mooring layout to reduce costs and increase efficiency, enhance the overall stability and reliability under complex sea conditions, and achieve continuous and stable power output.

[0007] A floating wind-wave integrated power generation system provided by the present invention includes: a plurality of floating wind turbines, a mooring floating assembly, an anchoring foundation, and a wave energy power generation device. The plurality of floating wind turbines are distributed around the mooring floating assembly. The plurality of floating wind turbines are all connected to the mooring floating assembly. The plurality of floating wind turbines and the mooring floating assembly are both connected to their respective corresponding anchoring foundations, and the anchoring foundation is used to be fixed on the seabed.

[0008] The floating wind turbine includes a wind turbine body and a supporting floating seat. Wave energy power generation devices are arranged on both the supporting floating seat and the mooring floating assembly. The wave energy power generation device is used to contact seawater and convert wave energy into electric energy.

[0009] Further, the floating wind turbine is connected to the mooring floating assembly through a mooring connecting piece. The plurality of floating wind turbines are equidistantly distributed on a circle with the mooring floating assembly as the center and the mooring connecting piece as the radius. The number of the floating wind turbines is at least three.

[0010] Further, the supporting floating seat includes a triangular floating frame. One corner of the triangular floating frame close to the mooring floating assembly is connected to the mooring floating assembly through the mooring connecting piece, and the other two corners of the triangular floating frame are respectively connected to the anchoring foundation through the mooring connecting piece.

[0011] Further, the mooring floating assembly includes a single floating member, and the plurality of floating wind turbines are respectively connected to the single floating member through the mooring connecting piece;

[0012] Or the mooring floating assembly includes a plurality of floating members, namely a first floating member and a plurality of second floating members. The first floating member is arranged at the center of the mooring floating assembly. The plurality of floating wind turbines are respectively connected to the first floating member through the mooring connecting piece. The second floating members are arranged on the mooring connecting pieces between the first floating member and a single floating wind turbine, and adjacent two second floating members are connected through the mooring connecting piece.

[0013] Further, the floating member includes a floating drum. A cylindrical part and a disc part are arranged on the floating drum. The middle of the disc part is connected to the end face of the cylindrical part. The wave energy power generation device is arranged on the cylindrical part for collecting wave energy. The mooring connecting piece is connected to the disc part. The floating drum is used to be arranged on the side far from the seabed, and the disc part is used to be arranged on the side close to the seabed. The diameter of the disc part is larger than the diameter of the cylindrical part, and the thickness of the disc part is smaller than the thickness of the cylindrical part.

[0014] Furthermore, the wind turbine body is arranged on one corner of the triangular floating frame, and columns are arranged on the other two corners of the triangular floating frame. The wave energy power generation device is arranged on the columns for collecting wave energy.

[0015] Furthermore, the wave energy power generation device is sleeved on the middle part of the cylindrical part of the buoy or the column of the triangular floating frame and is movably connected to the column, so as to realize that the wave energy power generation device moves up and down along the column under the action of waves to generate electricity;

[0016] The wave energy power generation device comprises a power generation part and a sinking part which are sequentially connected and sleeved on the column, and the sinking part is arranged on a side close to the buoy disc part or a side close to the triangular floating frame;

[0017] The sinking part includes a cavity and a ballast cavity, and a water inlet and outlet are arranged on one side of the cavity, and the water inlet and outlet are used to inject seawater into the cavity to drive the wave energy power generation device to sink to the bottom of the column and contact the disc part of the buoy or the triangular floating frame, or to output seawater to provide buoyancy for the wave energy power generation device to move away from the bottom of the column and detach from the disc part of the buoy or the triangular floating frame to resume power generation;

[0018] The ballast chamber is located at the bottom of the cavity, and the ballast chamber is filled with a fixed amount of liquid to balance the buoyancy when the cavity is not filled with seawater.

[0019] Furthermore, a track is provided on the side of the column along the axial direction, and the power generation part includes a rolling member, a power generation device, a connecting rod, a slider, a telescopic member and a baffle. One side of the power generation device is rollingly connected to the track through a rolling member, one end of the connecting rod is connected to the top of the power generation device, and the other end of the connecting rod is connected to the slider. The slider is arranged in the track, and the baffle is arranged above the power generation part. A telescopic member is arranged in the column and close to the baffle, and the telescopic member is used to extend from the column to the track to support the slider to prevent the slider from sliding down, or to be retracted from the track back into the column without affecting the free movement of the slider on the column.

[0020] Furthermore, the cavity includes a drainage board and a power component, the drainage board is arranged in the cavity near the wall of the power generation part and covers the wall, one end of the power component is connected to the wall, and the other end is connected to the drainage board, and the power component is used to control the drainage board to move away from the wall so that the seawater in the cavity is discharged from the water inlet and outlet.

[0021] Furthermore, an elastic member is arranged between the drain plate and the wall surface, and the elastic member is arranged on both sides of the power member respectively, one end of the elastic member is connected to the wall surface, and the other end is connected to the drain plate.

[0022] As can be seen from the above technical solutions, the present invention has the following advantages:

[0023] By sharing a mooring floating assembly among multiple floating wind turbines, the mooring system is simplified and more stable. A certain spacing needs to be reserved between the floating wind turbines. By installing wave energy power generation devices on the mooring floating assembly and the floating base, the wave energy in the sea area layout area where the floating wind turbines are located is converted into electric energy. In a specific sea area range, both wind power generation and wave energy power generation are realized, improving the power generation utilization rate of ocean space and the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 A three-dimensional structure schematic diagram of a floating wind-wave integrated power generation system provided by an embodiment of the present invention;

[0026] Figure 2 A top view structure schematic diagram of a floating wind-wave integrated power generation system provided by an embodiment of the present invention;

[0027] Figure 3 A front view structure schematic diagram of a floating wind-wave integrated power generation system provided by an embodiment of the present invention;

[0028] Figure 4 Another three-dimensional structure schematic diagram of a floating wind-wave integrated power generation system provided by an embodiment of the present invention;

[0029] Figure 5 A structure schematic diagram of a floating wind turbine in a floating wind-wave integrated power generation system provided by an embodiment of the present invention;

[0030] Figure 6 A structure schematic diagram of a mooring floating assembly in a floating wind-wave integrated power generation system provided by an embodiment of the present invention;

[0031] Figure 7 A structure schematic diagram of a power generation part in a wave energy power generation device provided by an embodiment of the present invention;

[0032] Figure 8 A cooperation schematic diagram of a slider and a telescopic member in a power generation part provided by an embodiment of the present invention;

[0033] Figure 9 Schematic diagram of the power generation principle of the power generation equipment in the power generation unit provided by the embodiment of the present invention;

[0034] Figure 10 Schematic diagram of the structures of the power generation unit and the sinking part in the wave energy power generation device provided by the embodiment of the present invention.

[0035] Description of the reference numerals:

[0036] 1. Floating wind turbine; 2. Mooring floating assembly; 3. Anchoring foundation; 4. Wave energy power generation device; 5. Mooring connecting piece; 6. Sea level line; 7. Column; 101. Wind turbine body; 102. Support floating seat; 103. Triangular floating frame; 104. Column; 201. Floating piece; 202. First floating piece; 203. Second floating piece; 206. Float; 204. Cylindrical part; 205. Disk part; 401. Power generation unit; 402. Sinking part; 403. Cavity; 404. Ballast cavity; 405. Water inlet and outlet; 601. Rolling piece; 602. Power generation equipment; 603. Connecting rod; 604. Slide block; 605. Telescopic piece; 606. Baffle; 607. Track; 608. Vertical piston; 609. Horizontal piston; 701. Drainage plate; 702. Power component; 703. Wall surface; 704. Elastic piece; 302-1. Compression hydraulic tank; 302-3. Throttle valve; 302-4. Hydraulic motor; 302-5. Generator; 302-6. Accumulator; 302-7. Energy storage device; 302-2a. First one-way inflow valve; 302-2b. Second one-way inflow valve. Detailed implementation manners

[0037] In order to make the invention purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description and drawings of the present invention, terms such as "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0039] Please refer to Figures 1-3 , Figures 1-3 which is a floating wind-wave integrated power generation system provided by an embodiment of the present invention.

[0040] A floating wind-wave integrated power generation system provided by the present invention includes: a plurality of floating wind turbines 1, a mooring floating assembly 2, an anchoring foundation 3, and a wave energy power generation device 4. The plurality of floating wind turbines 1 are distributed around the mooring floating assembly 2. The plurality of floating wind turbines 1 are all connected to the mooring floating assembly 2. The plurality of floating wind turbines 1 and the mooring floating assembly 2 are all connected to their respective corresponding anchoring foundations 3. The anchoring foundation 3 is used to be fixed on the seabed;

[0041] The floating wind turbine 1 includes a wind turbine body 101 and a supporting floating seat 102. Wave energy power generation devices 4 are arranged on both the supporting floating seat 102 and the mooring floating assembly 2. The wave energy power generation device 4 is used to contact seawater and convert wave energy into electric energy.

[0042] It can be understood that in specific implementation, sharing a mooring floating assembly 2 by a plurality of floating wind turbines 1 simplifies the mooring system, and is more stable than equipping each wind turbine with an individual mooring system. A certain distance needs to be reserved between the floating wind turbines 1, but this leads to difficulty in achieving a higher degree of intensive utilization of energy in the limited ocean space. By arranging wave energy power generation devices 4 on the mooring floating assembly 2 and the supporting floating seat 102 to convert the wave energy in the sea area layout where the floating wind turbines 1 are located into electric energy, within a specific sea area range, both wind power generation and wave energy power generation are realized, improving the power generation utilization rate of the ocean space and the power generation efficiency.

[0043] In a more specific embodiment, the mooring connecting member 5 connecting the mooring floating assembly 2 and the anchoring foundation 3 is a tension leg, and the good movement performance of the tension leg enables the mooring buoy 206 to have more stable movement performance.

[0044] In a more specific embodiment, the anchoring foundation 3 can adopt a screw anchor or a suction bucket to provide stable uplift resistance. It can be understood that the tension leg is connected to the seabed through anchoring methods such as suction buckets or screw anchors, providing additional stability to the buoy 206 to ensure optimized mechanical connection between the wind turbines and reducing the overall dynamic response.

[0045] In a more specific embodiment, the floating wind turbine 1 is connected to the mooring floating assembly 2 through a mooring connector 5. A plurality of floating wind turbines 1 are evenly distributed on a circle centered on the mooring floating assembly 2 with the mooring connector 5 as the radius. The number of floating wind turbines 1 is at least 3.

[0046] In a more specific embodiment, the mooring connector is a mooring cable, which is usually made of high-strength materials such as steel wire, polyester fiber, nylon, etc. These materials can withstand huge tensile forces, ensuring that ships or offshore structures can be firmly moored in the designated position under the action of various harsh sea conditions, such as strong winds, huge waves, strong currents, etc., preventing them from shifting or drifting and ensuring operation safety.

[0047] It can be understood that during specific implementation, when the number of floating wind turbines 1 is 3 or more and the floating wind turbines 1 are evenly distributed on a circle centered on the mooring floating assembly 2 with the mooring cable as the radius, the included angle between the wind turbines is at least less than 120 degrees, and the forces on the mooring cables are more balanced. When the wind blows, the acting forces of each wind turbine on the mooring floating assembly 2 balance each other in different directions, making the resultant force on the entire mooring system more evenly distributed on the mooring connector 5, reducing the risk of the mooring cable breaking or being damaged due to excessive uneven force, and improving the structural stability of the entire floating wind power generation system.

[0048] In a more specific embodiment, the support floating seat 102 includes a triangular floating frame 103. One corner of the triangular floating frame 103 close to the mooring floating assembly 2 is connected to the mooring floating assembly 2 through a mooring connector 5, and the other two corners of the triangular floating frame 103 are respectively connected to the anchoring foundation 3 through mooring connectors 5.

[0049] It can be understood that during specific implementation, the triangular structure provides sufficient strength for the floating frame of the wind turbine. When external forces such as sea waves and wind act on the floating frame, it is connected to the anchoring foundation 3 or the mooring floating assembly 2 through the mooring connectors 5 at the three corners, which can ensure that the force on the platform is more evenly distributed. Due to the action of waves and wind in the marine environment, this distribution helps to reduce the structural stress of the platform.

[0050] In a more specific embodiment, the mooring floating assembly 2 includes a single floating member 201 , and a plurality of floating wind turbines 1 are connected to the single floating member 201 via mooring connectors 5 .

[0051] In some more specific embodiments, Figure 4 As shown, the mooring floating assembly 2 includes multiple floating members 201, which are respectively a first floating member 202 and multiple second floating members 203. The first floating member 202 is arranged at the center of the mooring floating assembly 2, and multiple floating wind turbines 1 are respectively connected to the first floating member 202 through mooring connectors 5. The second floating member 203 is arranged on the mooring connector 5 between the first floating member 202 and a single floating wind turbine 1, and two adjacent second floating members 203 are connected through the mooring connector 5.

[0052] It is understandable that, in specific implementation, by setting a plurality of second floating members 203, which are equivalent to a plurality of supporting floating points, they are distributed on the mooring connector 5, so that the mooring connector 5 is no longer a simple two-point connection force mode when subjected to force, but forms a complex network of multiple force points interacting with each other. When a certain part is subjected to a large force, the surrounding second floating members 203 and the mooring connector 5 will jointly bear this force, and through the tension of the mooring connector 5 and the supporting floating effect of the second floating member 203, the force is dispersed to the entire mooring floating assembly 2, avoiding a single mooring cable or floating member 201 from bearing too much force, and realizing the mutual sharing of the force.

[0053] like Figure 6 As shown, in a more specific embodiment, the floating member 201 includes a buoy 206, a cylindrical portion 204 and a disc portion 205 are arranged on the buoy 206, the middle portion of the disc portion 205 is connected to the end surface of the cylindrical portion 204, the wave energy power generation device 4 is arranged on the cylindrical portion 204 for collecting wave energy, the mooring connector 5 is connected to the disc portion 205, the buoy 206 is used to be arranged on a side away from the seabed, and the disc portion 205 is used to be arranged on a side close to the seabed, the diameter of the disc portion 205 is greater than the diameter of the cylindrical portion 204, and the thickness of the disc portion 205 is less than the thickness of the cylindrical portion 204.

[0054] It can be understood that, in specific implementation, by arranging the disc portion 205 connected to the mooring connector 5 on the side close to the seabed, that is, the disc portion 205 is arranged below the cylindrical portion 204, the center of gravity of the buoy 206 can be lowered compared to arranging it on the top, and the end surface area and thickness of the disc portion 205 are both smaller than the cylindrical portion 204, which can increase the buoyancy and enhance the stability of the buoy 206. By arranging the wave energy power generation device 4 on the cylindrical portion 204 and arranging the cylindrical portion 204 on the side away from the seabed, the cylindrical portion 204 allows the wave energy power generation device 4 to fully contact the waves on the sea level 6, which is more conducive to the wave energy power generation device 4 to generate electricity.

[0055] It should be noted that the length of the cylindrical part 204 needs to be considered according to the actual situation. It should not be too short to avoid restricting the up-and-down relative oscillation of the wave energy power generation device 4, nor too long to be unfavorable for the descent of the center of gravity of the buoy (206) and the overall stability.

[0056] As Figure 5 shown, in a more specific embodiment, the wind turbine main body 101 is arranged at one corner of the triangular floating frame 103, and columns 104 are arranged at the other two corners of the triangular floating frame 103. The wave energy power generation device 4 is arranged on the columns 104 to collect wave energy.

[0057] It can be understood that in specific implementation, by arranging the wave energy power generation devices 4 at the other two corners of the triangular floating frame 103, wave energy collection can be achieved, making efficient use of marine resources, and further balancing the triangular floating frame 103.

[0058] For extreme sea conditions, in this embodiment, a self-storage strategy can be adopted to inject water into the cavity 403 to sink the wave energy power generation device 4 to the bottom of the fan support floating seat 102 and the bottom of the buoy 206.

[0059] As Figure 5 and Figure 6 shown, in a more specific embodiment, the wave energy power generation device 4 is sleeved on the middle part of the column body 7 of the cylindrical part 204 of the buoy 206 or the column 104 of the triangular floating frame 103 and is movably connected to the column body 7, so as to enable the wave energy power generation device 4 to move up and down along the column body 7 under the action of waves for power generation.

[0060] As Figure 7 and Figure 10 shown, the wave energy power generation device 4 includes a power generation part 401 and a sinking part 402 that are connected in sequence and sleeved on the column 104. The sinking part 402 is arranged on one side close to the disc part 205 of the buoy 206 or one side close to the triangular floating frame 103;

[0061] The sinking part 402 includes a cavity 403 and a ballast cavity 404. An inlet and outlet 405 is arranged on one side of the cavity 403. The inlet and outlet 405 is used to inject seawater into the cavity 403 to drive the wave energy power generation device 4 to sink to the bottom of the column body 7 to contact the disc part 205 of the buoy 206 or the triangular floating frame 103, or to output seawater to provide buoyancy for the wave energy power generation device 4 to move away from the bottom of the column body 7 and separate from the disc part 205 of the buoy 206 or the triangular floating frame 103 to resume power generation;

[0062] The ballast cavity 404 is located at the bottom of the cavity 403, and the ballast cavity 404 is filled with a fixed amount of liquid to balance the buoyancy when no seawater is injected into the cavity 403.

[0063] It can be understood that, in a specific implementation, by setting a cavity 403 below the power generation part 401 of the wave energy power generation device 4, when the cavity 403 is not injected with seawater, the cavity 403 provides buoyancy for the wave energy power generation device, and the ballast cavity 404 provides gravity for the wave energy power generation device 4. The balance between gravity and buoyancy can enable the wave energy power generation device 4 to maintain a relatively fixed position in the water, and will not float excessively due to excessive buoyancy or sink due to excessive gravity, thereby accurately capturing wave energy.

[0064] When seawater is injected into the cavity 403, the wave energy power generation device 4 is driven to sink to the bottom of the column 7 and contact the disc portion 205 of the buoy 206 or the triangular buoy 103, providing gravity for the buoy 206 or the triangular buoy 103, thereby improving the stability of the system in dealing with extreme sea conditions.

[0065] In a more specific embodiment, the liquid filled in the ballast chamber 404 is seawater. It is understandable that, in a specific implementation, since the density of seawater is closer to the density of water in the marine environment, the buoyancy change and structural stress change caused by the density difference are reduced, and the overall stability of the wave energy power generation device 4 is improved.

[0066] In a more specific embodiment, a central controller is provided in the wave energy power generation device, the water inlet and outlet 405 are connected to the electromagnetic valve, and the electromagnetic valve is connected to the central controller.

[0067] like Figure 7 and Figure 8 As shown, in a more specific embodiment, a track 607 is provided on the side of the column 104 along the axial direction, the power generation part 401 includes a rolling member 601, a power generation device 602, a connecting rod 603, a slider 604, a telescopic member 605 and a baffle 606, one side of the power generation device 602 is rollingly connected to the track 607 through the rolling member 601, one end of the connecting rod 603 is connected to the top of the power generation device 602, and the other end of the connecting rod 603 is connected to the slider 604, the slider 604 is arranged in the track 607, the baffle 606 is arranged above the power generation part 401 and connected to the column 7, and a telescopic member 605 is provided in the column 7 and near the baffle 606, the telescopic member 605 is used to extend from the column 7 to the track 607 to resist the slider 604 to prevent the slider 604 from sliding down, or to be retracted from the track 607 back into the column 104 without affecting the free movement of the slider 604 on the column 7.

[0068] It can be understood that, in specific implementation, the telescopic member 605 is provided on the column 7 to control whether the slider 604 moves freely on the column 7 and thus control whether the wave energy power generation device 4 moves freely on the column 7 .

[0069] In a more specific embodiment, the structure of the telescopic member 605 is a groove type, which is used to further stabilize the slider 604 and prevent the slider 604 from swaying left and right.

[0070] In a more specific embodiment, the track 607 is made of a soft rubber material.

[0071] In a more specific embodiment, the power generation device 602 is connected to the connecting rod 603 through the vertical piston 608 and is connected to the rolling member 601 through the horizontal piston 609.

[0072] In a more specific embodiment, the rolling member 601 is a pulley.

[0073] In a more specific embodiment, as Figure 9 shown, Figure 9 is an implementation scheme that can be adopted in combination with the prior art. The power generation device 602 is driven by a two-way hydraulic transmission system and is composed of a compressed hydraulic tank 302-1, a one-way inflow valve, a throttle valve 302-3, a hydraulic motor 302-4, a generator 302-5, an accumulator 302-6, and an energy storage device 302-7; by using the relative vertical movement and relative horizontal movement of the wave energy generation device 3 and the column 7, the respective power generation devices 602 of the vertical piston 608 and the horizontal piston 609 are driven; the specific working principle and process of the power generation device 602 of the wave energy generation device 3 are as follows: the relative vertical movement of the wave energy generation device 4 and the columns 104 on both sides of the support floating seat 102 and the mooring floating assembly 2 drives the vertical piston 608 (or the relative horizontal movement drives the horizontal piston 609) to compress the liquid in the compressed hydraulic tank 302-1, so that it enters the hydraulic motor 302-4 through the first one-way inflow valve 302-2a (or when reversing: through the second one-way inflow valve 302-2b), driving its rotation, thereby driving the generator 302-5 to generate electricity. The throttle valve 302-3 and the accumulator 302-6 mainly play the role of stabilizing the pressure of the hydraulic system and protecting the safety of the hydraulic system; the energy storage device 302-7 acts as a power source;

[0074] The power generation devices 602 of the wave energy generation device 3 are independent of each other. If any power generation device 602 fails, it will not affect the operation of the power generation system module 302 of other wave energy generation devices 3;

[0075] As Figure 10 shown, in a more specific embodiment, the cavity 403 includes a drainage plate 701 and a power member 702. The drainage plate 701 is arranged on the wall surface 703 of the cavity 403 close to the power generation part 401 and covers the wall surface 703. One end of the power member 702 is connected to the wall surface 703, and the other end is connected to the drainage plate 701. The telescopic control member is used to control the drainage plate 701 to move away from the wall surface 703 so that the seawater in the cavity 403 is discharged from the water inlet and outlet 405.

[0076] It can be understood that during specific implementation, the power component 702 controls the movement of the drainage plate 701 to press the seawater in the cavity 403 out from the water inlet and outlet 405, improving the drainage efficiency. This kind of drainage is faster, more efficient, and has a lower failure rate compared to pumping with a water pump.

[0077] In a more specific embodiment, an elastic member is further provided between the drainage plate 701 and the wall surface 703. The elastic members 704 are respectively arranged on both sides of the power component 702. One end of the elastic member 704 is connected to the wall surface 703, and the other end is connected to the drainage plate 701. In a more specific embodiment, the elastic member is a spring.

[0078] It can be understood that during specific implementation, setting springs on both sides of the power component 702 can make the force received by the drainage plate 701 during movement more uniform. If only relying on the telescopic member 605 to push the drainage plate 701, due to factors such as the structural characteristics or installation position of the power component 702 itself, the force on the drainage plate 701 may be uneven, affecting the water-pushing effect, and even causing the drainage plate 701 to tilt or twist. The role of the springs on both sides can balance the force on the drainage plate 701, keep it stable during the water-pushing process, ensure uniform contact between the drainage plate 701 and the water surface, and improve the overall water-pushing effect.

[0079] The working principle of the wave energy power generation device floating and sinking is as follows: When it is necessary to sink the wave energy power generation device 4 from the upper part of the cylinder 7 to the bottom of the cylinder 7, the central controller issues an instruction to open the electromagnetic valve to inject water from the water inlet and outlet 405. As the injected water volume increases, the overall gravity of the wave energy power generation device 4 is greater than its buoyancy, and the pulley of the wave energy power generation device 4 vertically sinks along the track 607. When the wave energy power generation device 4 sinks to a predetermined position of the cylinder 7, under the action of the internal energy storage device 302-7 serving as a power source, a discharging process in the opposite direction of the power generation of the wave energy power generation device 4 is carried out, so that the horizontal piston 609 pushes the rolling member 601 to squeeze the rubber track 607 to a certain position for positioning and locking, thus achieving the effect of locking the wave energy power generation device 4. When it is necessary for the wave energy power generation device 4 to float, the corresponding seawater in the cavity is discharged. As the wave energy power generation device 4 floats to a certain position and the slider 6043 squeezes the baffle 606, the telescopic member 605 will be triggered to extend from the track 607, and the groove of the telescopic member 605 is spliced and locked with the slider 604.

[0080] In a more specific embodiment, the cavity 403 is partitioned into a plurality of compartments, and a liquid level sensor is disposed in each compartment. An electromagnetic valve corresponding to the water inlet / outlet 405 is provided outside the corresponding compartment. The power member 702 can be used to control the movement of the drainage plate 701 to adjust the size of the water injection space in each compartment, thereby controlling the water injection volume of the entire wave energy power generation device 4. The central controller is connected to the power member 702 and the electromagnetic valve through a cable, receives the liquid level sensor and controls the operation of the electromagnetic valve and the like. It can be understood that during specific implementation, if a certain compartment is damaged, since other compartments are isolated from each other, the wave energy power generation device 4 can still operate normally.

[0081] In a more specific embodiment, the power member is an electric telescopic rod, and the electric telescopic rod is connected to the central controller and the power generation device 602.

[0082] The working principle of water injection and drainage of the wave energy power generation device is as follows: When it is detected that the water injection volume of the wave energy power generation device 3 needs to be adjusted (for example, before the arrival of extreme sea conditions, it is necessary to increase the water injection volume to sink the wave energy power generation device 4), the liquid level sensor transmits the current water level information to the central controller. The central controller issues an instruction for the telescopic member 605 to contract into the column 7, releases the locking state between the slider 604 and the telescopic member 605, and then opens the electromagnetic valve according to the preset water volume to be injected, allowing seawater to be injected into the cavity 403 of the wave energy power generation device 4 from the water inlet / outlet 405. The wave energy power generation device 3 starts to slide down along the track 607 under the action of the rolling member 601. During the water injection process, the liquid level sensor continuously monitors the water level. When the set water level is reached, the central controller issues an instruction to close the electromagnetic valve of the water inlet / outlet 405 and stop the water injection. On the contrary, when it is necessary to reduce the water injection volume to make the wave energy power generation device 4 float, the central controller controls the power member 702 to make the drainage plate 701 compress the water injection space in the cavity, and opens the electromagnetic valve of the water inlet / outlet 405 to discharge part of the seawater in the cavity 403. Until the appropriate water injection volume is reached, the central controller closes the electromagnetic valve of the water inlet / outlet 405, and the drainage plate 701 returns to its original position under the action of the retraction of the power member 702 and the elastic member 704.

[0083] Therefore, when the wave energy power generation device 4 of the present invention is faced with extreme sea conditions, by injecting seawater into the cavity 403 to sink to the bottom of the support floating seat 102 and cooperate with the mooring system at the bottom of the floating drum 206 for protection, it can ensure the survival of the equipment, reduce the risk of damage, and maintain the long-term operation reliability.

[0084] Under the constraint of shared mooring, the floating wind turbine 1 can remain relatively stable under the action of wind and generate electric energy. At the same time, under the action of waves, the wave energy power generation devices installed on the two columns 104 and the floating barrels of the support floating seat 102 oscillate up and down with the waves, generating relative motion, enabling the power generation equipment on the two columns 104 and the floating barrels of the support floating seat 102 to complete the conversion of wave energy and output electric energy. When there are multiple floating wind turbines, they can be triangularly connected to the peripheral anchoring foundation through mooring cables to form a stable and reliable shared mooring. Through this shared mooring structure, the mutual horizontal force loads between multiple wind turbines can be effectively offset, thereby enhancing the safety and economy of the entire system, reducing the cost of traditional independent mooring systems, and improving the reliability and stability of the system. The advantages of the shared mooring are reflected in the mutual cancellation of multi-directional acting forces at the mooring floating barrels, further optimizing the mechanical connection between the wind turbines and reducing the dynamic response. The system adopts an oscillating float type wave energy power generation device, which can work in coordination with the wind turbine, effectively capture wave energy, increase energy output, and further improve the utilization efficiency of ocean energy. Through combined wind and wave power generation, the present invention realizes the integration of wave and wind energy fields, more efficiently utilizes energy in a limited ocean space, thereby saving ocean sites and enhancing resource utilization efficiency. In addition, the system adopts a modular design, which can flexibly adjust the number and layout of wind turbines to adapt to the development needs of different scales of offshore renewable energy, and has broad application prospects.

[0085] The above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floating wind-wave fusion power generation system, characterized in that: include: A plurality of floating wind turbines (1), a mooring floating assembly (2), an anchor foundation (3), and a wave energy power generation device (4), wherein the plurality of floating wind turbines (1) are distributed around the mooring floating assembly (2), the plurality of floating wind turbines (1) are all connected to the mooring floating assembly (2), the plurality of floating wind turbines (1) and the mooring floating assembly (2) are all connected to their respective corresponding anchor foundations (3), and the anchor foundation (3) is used to be fixed on the seabed; The floating wind turbine (1) comprises a wind turbine body (101) and a supporting buoy (102), and wave energy power generation devices (4) are arranged on the supporting buoy (102) and the mooring floating assembly (2). The wave energy power generation device (4) is used to contact with seawater and convert wave energy into electrical energy.

2. A floating wind-wave fusion power generation system according to claim 1, characterized in that: The floating wind turbine (1) is connected to the mooring floating assembly (2) via a mooring connection (5); the plurality of floating wind turbines (1) are equidistantly distributed on a circle with the mooring floating assembly (2) as the center and the mooring connection (5) as the radius; the number of the floating wind turbines (1) is at least 3.

3. A floating wind-wave fusion power generation system according to claim 2, characterized in that: The supporting floating seat (102) comprises a triangular floating frame (103), wherein a corner of the triangular floating frame (103) close to the mooring floating assembly (2) is connected to the mooring floating assembly (2) via the mooring connector (5), and the other two corners of the triangular floating frame (103) are respectively connected to the anchor foundation (3) via the mooring connector (5).

4. A floating wind-wave fusion power generation system according to claim 2, characterized in that: The mooring floating assembly (2) comprises a single floating member (201), and the plurality of floating wind turbines (1) are connected to the single floating member (201) via the mooring connectors (5). Or the mooring floating assembly (2) comprises a plurality of floating members (201), namely a first floating member (202) and a plurality of second floating members (203); the first floating member (202) is arranged at the center of the mooring floating assembly (2); the plurality of floating wind turbines (1) are respectively connected to the first floating member (202) via the mooring connection member (5); the second floating member (203) is arranged on the mooring connection member (5) between the first floating member (202) and a single floating wind turbine (1); and two adjacent second floating members (203) are connected via the mooring connection member (5).

5. A floating wind-wave fusion power generation system according to claim 4, characterized in that: The floating member (201) comprises a buoy (206), a cylindrical portion (204) and a disc portion (205) are arranged on the buoy (206), the middle portion of the disc portion (205) is connected to the end surface of the cylindrical portion (204), the wave energy power generation device (4) is arranged on the cylindrical portion (204) for collecting wave energy, the mooring connection member (5) is connected to the disc portion (205), the buoy (206) is used to be arranged on a side away from the seabed, and the disc portion (205) is used to be arranged on a side close to the seabed, the diameter of the disc portion (205) is greater than the diameter of the cylindrical portion (204), and the thickness of the disc portion (205) is less than the thickness of the cylindrical portion (204).

6. The floating wind-wave fusion power generation system according to claim 3 is characterized in that: The wind turbine body (101) is arranged on one corner of the triangular floating frame (103), and columns (104) are arranged on the other two corners of the triangular floating frame (103). The wave energy power generation device (4) is arranged on the columns (104) for collecting wave energy.

7. A floating wind-wave fusion power generation system according to claim 5 or 6, characterized in that: The wave energy power generation device (4) is sleeved on the middle part of the column (7) of the cylindrical part (204) of the buoy (206) or the column (104) of the triangular floating frame (103) and is movably connected to the column (7), so as to enable the wave energy power generation device (4) to move up and down along the column (7) under the action of waves to generate electricity; The wave energy power generation device (4) comprises a power generation part (401) and a sinking part (402) which are connected in sequence and sleeved on the column (104); the sinking part (402) is arranged on a side close to the disc part (205) of the buoy (206) or on a side close to the triangular floating frame (103); The sinking portion (402) comprises a cavity (403) and a ballast cavity (404); a water inlet and outlet (405) is provided on one side of the cavity (403); the water inlet and outlet (405) is used to inject seawater into the cavity (403) to drive the wave energy power generation device (4) to sink to the bottom of the column (7) to contact the disc portion (205) of the buoy (206) or the triangular floating frame (103); or to output seawater to provide buoyancy for the wave energy power generation device (4) to move away from the bottom of the column (7) and to separate from the disc portion (205) of the buoy (206) or the triangular floating frame (103) to resume power generation; The ballast chamber (404) is located at the bottom of the cavity (403), and the ballast chamber (404) is filled with a fixed amount of liquid to balance the buoyancy of the cavity (403) when no seawater is injected.

8. The floating wind-wave fusion power generation system according to claim 7, characterized in that: A track (607) is provided on the side of the column (104) along the axial direction. The power generation unit (401) comprises a rolling element (601), a power generation device (602), a connecting rod (603), a slider (604), a telescopic element (605) and a baffle (606). One side of the power generation device (602) is rollingly connected to the track (607) via the rolling element (601). One end of the connecting rod (603) is connected to the top of the power generation device (602). The other end of the connecting rod (603) is connected to the slider (604). The slider (604) is arranged in the track (607), the baffle (606) is arranged above the power generation part (401), and a telescopic member (605) is arranged in the column (104) and near the baffle (606). The telescopic member (605) is used to extend from the column (104) to the track (607) to support the slider (604) to prevent the slider (604) from sliding down, or to retract from the track (607) back into the column (104) without affecting the free movement of the slider (604) on the column (104).

9. The floating wind-wave fusion power generation system according to claim 7, characterized in that: The cavity (403) comprises a drainage plate (701) and a power member (702); the drainage plate (701) is arranged in the cavity (403) on a wall surface (703) close to the power generation unit (401) and covers the wall surface (703); one end of the power member (702) is connected to the wall surface (703) and the other end is connected to the drainage plate (701); the power member (702) is used to control the drainage plate (701) to move away from the wall surface (703) so that the seawater in the cavity (403) is discharged from the water inlet and outlet (405).

10. A floating wind-wave fusion power generation system according to claim 9, characterized in that: An elastic member (704) is also provided between the drainage plate (701) and the wall surface (703), and the elastic member (704) is respectively provided on both sides of the power member (702), and one end of the elastic member (704) is connected to the wall surface (703), and the other end is connected to the drainage plate (701).

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