Wind and wave combined power generation device integrated with yaw

Abstract

The utility model relates to the technical field of offshore power generation, in particular to a wind and wave combined power generation device integrated with yawing, which comprises a wind turbine generator set, a wind turbine generator set and a wind turbine generator set, the platform base is used for supporting and fixing the wind turbine generator and the wave energy power generation device; the wave energy power generation device is used for generating power by utilizing wave energy; the mooring system is used for mooring the whole combined power generation device; the anchor chain is used for connecting the mooring system with a seabed in an anchoring manner; the wind turbine generator is arranged at the top of the platform base, the platform base is arranged at the top of the mooring system and is rotatably connected with the mooring system, and the wave energy power generation device is arranged on one side of the platform base. According to the utility model, wind power and wave energy are comprehensively utilized, so that the energy conversion efficiency is obviously improved; according to the utility model, yaw optimization can be realized under the action of wind power, the power generation efficiency is improved, and the adaptability and the stability of the device are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore power generation, in particular to a wind-wave combined power generation device with integrated yaw. Background Art

[0002] As the global demand for renewable energy continues to grow, the offshore wind and wave power generation platform, as a comprehensive platform that combines wind energy and wave energy, is gradually showing its unique advantages and development potential. The platform achieves multi-energy synergistic power generation by installing wind turbines and wave energy generation equipment on the same platform, thereby maximizing energy utilization efficiency and reducing dependence on traditional energy.

[0003] However, despite the advantages of offshore wind and wave combined platforms, such as multi-energy integration, high space utilization efficiency, strong comprehensive performance, strong wind and wave resistance, and environmental sustainability, they still face a series of challenges and limitations in practical applications. First, high construction and maintenance costs are one of the main challenges facing offshore wind and wave combined platforms. Since the platform needs to be built and operated at sea, it involves complex engineering technology, challenges of the marine environment, and high equipment costs, which makes the investment and maintenance costs of the entire project relatively high. Secondly, technical difficulties and risks are also issues that cannot be ignored. Offshore wind and wave combined platforms need to solve the problem of stable operation of wind turbines and wave power generation equipment in the marine environment, and also need to deal with the impact of severe weather and extreme marine conditions at sea on the platform structure and equipment. These technical difficulties and risks increase the complexity and uncertainty of the project. In addition, energy volatility is also a challenge that offshore wind and wave combined platforms need to face. Due to the large volatility of wind energy and wave energy, the energy production of offshore wind and wave combined platforms is greatly affected by the volatility of wind and waves. When wind and wave conditions are not ideal, energy production may decline, leading to unstable power supply. Finally, spatial competition and planning restrictions are also issues that need to be solved by offshore wind and wave combined platforms. Ocean space is a limited resource and there is competition with other ocean utilization activities (such as shipping, fisheries, etc.). Therefore, when planning an offshore wind and wave combined platform, it is necessary to consider coordination and balance with other ocean utilization activities.

[0004] In summary, although the offshore wind and wave combined platform has many advantages, it also has disadvantages such as high construction and maintenance costs, technical difficulties and risks, energy volatility, and spatial competition and planning restrictions. In the process of promotion and application, these factors need to be comprehensively considered and corresponding measures need to be taken to solve and overcome them. Utility Model Content

[0005] The purpose of the utility model is to provide a wind-wave combined power generation device with integrated yaw in order to solve at least one of the above technical problems.

[0006] The utility model provides a wind-wave combined power generation device with integrated yaw, comprising:

[0007] Wind turbines, used to generate electricity using wind power;

[0008] A platform base, used to support and fix the wind turbine and the wave energy power generation device;

[0009] The wave energy power generation device is used to generate electricity using wave energy;

[0010] Mooring system, used to moor the entire combined power generation unit;

[0011] Anchor chain, used to anchor the mooring system to the seabed;

[0012] The wind turbine generator set is arranged on the top of the platform seat, the platform seat is arranged on the top of the mooring system and is rotatably connected to the mooring system, and the wave energy power generation device is arranged on one side of the platform seat.

[0013] Furthermore, the wind turbine generator set comprises: a nacelle, blades, a hub, and a tower;

[0014] The nacelle is fixed to the top of the platform seat through the tower; the hub is fixedly connected to the nacelle through a main shaft, and the hub rotates around the main shaft in the operating state; the blades are connected to the hub through bolts to form a wind wheel.

[0015] Furthermore, a plurality of towers are provided, and the plurality of towers are evenly distributed on the top of the upper platform seat, and one end of each tower is installed on the top of the platform seat, and the other end is connected to the cabin.

[0016] Further, the platform base includes: a control structure and a base gear compartment disposed at the bottom of the control structure;

[0017] The control structure includes a ballast tank and a counterweight tank, a power generation device control cabin and a gear guide rail control cabin connected in a triangle;

[0018] The ballast tank and the counterweight tank are used to balance the platform seat; the power generation device control cabin is used to monitor and adjust the operating status of the wind turbine and the wave energy power generation device; the gear guide control cabin is used to control the rotation of the base gear cabin on the mooring system.

[0019] Further, the base gear compartment is two rows of corresponding arc-shaped gears;

[0020] The mooring system comprises a gear guide rail and a first motor, wherein the gear guide rail is embedded in a groove of a top platform of the mooring system, and the first motor is arranged inside the mooring system, and the first motor is connected to the gear guide rail;

[0021] The base gear compartment is meshingly connected with the gear guide rail, and under the control of the first motor, the gear guide rail drives the base gear compartment to perform circular motion.

[0022] Furthermore, the wave energy power generation device adopts an eagle-type wave-absorbing floating body.

[0023] Furthermore, the wave energy power generation device includes: an eagle-type floating body, a support arm, and a hinge sleeve; one end of the support arm is movably connected to the eagle-type floating body, and the other end is fixedly connected to the hinge sleeve, and the hinge sleeve is sleeve-connected to one side of the platform seat.

[0024] Further, the mooring system comprises: a mooring system cabin and a second motor;

[0025] A plurality of said anchoring system compartments are evenly arranged at the bottom of said mooring system, and an anchor windlass controlled by said second motor is arranged inside each of said anchoring system compartments, and said anchor windlass is used to retract and release said anchor chain;

[0026] A ballast tank is arranged at the bottom of the mooring system and between every two cabins of the mooring system; the ballast tank is provided with a watertight door, and a water pump is arranged inside each ballast tank; the status of the watertight door and the water pump is controlled by the control structure of the platform seat, and the sinking and buoyancy of the mooring system is controlled by adjusting the water amount in the ballast tank.

[0027] Furthermore, the windward surface of the wind turbine generator set and the wavefront surface of the wave energy power generation device face the same direction, and the wind turbine generator set and the wave energy power generation device are both arranged on the same side of the wind-wave combined power generation device.

[0028] Furthermore, the wind turbine set and the wave energy power generation device are both connected to the transformer via a submarine cable.

[0029] The beneficial effects of the utility model are:

[0030] The utility model proposes a wind-wave combined power generation device with integrated yaw. A triangular tower structure wind turbine is mounted on a wind-wave combined power generation platform. The mooring system is designed to rotate using a guide rail. Ballast tanks of different sizes are provided inside the mooring system and on a platform seat. The posture can be adjusted in time according to the wave conditions. A plurality of anchor chains are configured at the bottom for fixing. In the past, the yaw system was used to control the adjustment of the wind turbine set, and the position of the anchor chain needed to be adjusted to adjust the wave energy power generation device. The utility model only needs to rotate the platform base to synchronously control the direction of the wind turbine set and the wave energy device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a wind-wave combined power generation device with integrated yaw according to one embodiment of the utility model;

[0032] Figure 2 This is a front view of a wind-wave combined power generation device with integrated yaw according to an embodiment of the utility model;

[0033] Figure 3 A side view of a wind-wave combined power generation device with integrated yaw according to an embodiment of the utility model;

[0034] Figure 4 A top view of a wind-wave combined power generation device with integrated yaw according to an embodiment of the utility model;

[0035] Figure 5 This is a schematic structural diagram of a wind turbine generator set according to one embodiment of the utility model;

[0036] Figure 6 The structure of the platform seat of one embodiment of the utility model is shown in FIG. Figure 1 ;

[0037] Figure 7 The structure of the platform seat of one embodiment of the utility model is shown in FIG. Figure 2 ;

[0038] Figure 8 A schematic diagram of the structure of a mooring system according to an embodiment of the present utility model Figure 1 ;

[0039] Fig. 9 This is a schematic structural diagram of a wave energy power generation device according to one embodiment of the utility model;

[0040] Fig.10 A schematic diagram of the structure of a mooring system according to an embodiment of the present utility model Figure 2 ;

[0041] Fig.11 The working process of the wind-wave combined power generation device with integrated yaw in one embodiment of the utility model Figure 1 ;

[0042] Fig.12 The working process of the wind-wave combined power generation device with integrated yaw in one embodiment of the utility model Figure 2 ;

[0043] Fig.13 This is a graph of wind speed and wave data collected in one implementation of the utility model.

[0044] In the figure: 1. Wind turbine, 11. Nacelle, 12. Blade, 13. Hub, 14. Tower, 2. Platform seat, 21. Ballast tank and counterweight tank, 22. Power generation device control cabin, 23. Gear guide control cabin, 24. Base gear cabin, 3. Wave energy power generation device, 31. Eagle buoy, 32. Support arm, 33. Hinge sleeve, 4. Mooring system, 41. Gear guide, 42. Mooring system cabin, 43. Ballast tank, 5. Anchor chain. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] Figure 1 This is a schematic diagram of the overall structure of a wind-wave combined power generation device with integrated yaw according to one embodiment of the utility model; Figure 2 This is a front view of a wind-wave combined power generation device with integrated yaw according to an embodiment of the utility model; Figure 3 A side view of a wind-wave combined power generation device with integrated yaw according to an embodiment of the utility model; Figure 4 This is a top view of a wind-wave combined power generation device with integrated yaw according to an embodiment of the utility model. Figure 1-4 As shown, according to an embodiment of the utility model, a wind-wave combined power generation device with integrated yaw comprises:

[0047] A wind turbine 1, used for generating electricity using wind power;

[0048] The platform base 2 is used to support and fix the wind turbine 1 and the wave energy power generation device 3;

[0049] The wave energy power generation device 3 is used to generate electricity using wave energy;

[0050] A mooring system 4, used for mooring the entire combined power generation device;

[0051] Anchor chain 5, used to anchor the mooring system 4 to the seabed;

[0052] The wind turbine 1 is arranged on the top of the platform seat 2 , the platform seat 2 is arranged on the top of the mooring system 4 and is rotatably connected to the mooring system 4 , and the wave energy power generation device 3 is arranged on one side of the platform seat 2 .

[0053] In this embodiment, the wind-wave combined power generation device with integrated yaw includes: a wind turbine 1, a platform seat 2, a wave power generation device 3, a mooring system 4, and an anchor chain 5; the wind turbine 1 is installed on the top of the platform seat 2, and the wind turbine 1 is responsible for capturing wind power and generating electricity by driving the generator through wind power; the platform seat 2 provides a stable support for the wind turbine 1 and the wave power generation device 3, and a rotatable connection is adopted between the platform seat 2 and the mooring system 4, allowing the platform seat 2 to yaw to a certain extent, thereby optimizing the power generation efficiency of the wind turbine 1 and the wave power generation device 3; the wave power generation device 3 is arranged on one side of the platform seat 2, which can capture the ups and downs of the waves, convert this kinetic energy into mechanical energy, and then convert the mechanical energy into electrical energy through the generator; the mooring system 4 is the "anchor point" of the entire combined power generation device, which is responsible for fixing the entire device on the sea surface, and the top of the mooring system 4 is rotatably connected to the platform seat 2, and the mooring system 4 is also anchored to the seabed through the anchor chain 5. The wind turbine 1 and the wave power generation device 3 are both connected to the transformer through a submarine cable.

[0054] The utility model significantly improves the energy conversion efficiency by comprehensively utilizing wind power and wave energy; the wind turbine and the wave energy power generation device are fixedly connected to the platform seat, and the platform seat and the mooring system are rotatably connected, so that the device can yaw under the action of wind power, optimizing the power generation efficiency. The utility model not only improves the energy conversion efficiency, but also enhances the adaptability and stability of the device, providing an effective solution for the development and utilization of marine renewable energy.

[0055] Figure 5 This is a schematic diagram of the structure of a wind turbine generator set according to one embodiment of the utility model. Figure 5 As shown, according to an embodiment of the present utility model, a wind turbine 1 comprises: a nacelle 11, blades 12, a hub 13, and a tower 14;

[0056] The nacelle 11 is fixed to the top of the platform seat 2 through a tower 14; the hub 13 is fixedly connected to the nacelle 11 through a main shaft, and the hub 13 rotates around the main shaft in the operating state; the blades 12 are connected to the hub 13 through bolts to form a wind wheel.

[0057] There are multiple towers 14 , which are evenly distributed on the top of the platform seat 2 . One end of each tower 14 is installed on the top of the platform seat 2 , and the other end is connected to the cabin 11 .

[0058] In this embodiment, the wind turbine 1 includes: a nacelle 11, blades 12, a hub 13, and a tower 14; three blades 12 of the same size are fastened to the hub 13 by bolts to form a wind wheel capable of capturing wind energy; the hub 13 is fixedly connected to the nacelle 11 through a main shaft, and when the wind wheel rotates, the hub 13 rotates around the main shaft, thereby driving the generator in the nacelle 11 to generate electricity; the nacelle 11 is the control center of the entire wind turbine, and it is connected to the platform seat 2 through multiple towers 14, which are evenly distributed on the top of the platform seat 2, and one end of each tower 14 is firmly mounted on the platform seat 2, and the other end is tightly connected to the nacelle 11, ensuring the stability and safety of the wind turbine 1. Preferably, in this embodiment, the number of towers 14 is three, the bottom of the three tower 14 columns is mounted on the platform seat, the nacelle 11 is fastened to the top of the tower 14, and the bottom of the three tower columns is mounted on the platform seat.

[0059] The structural design of the wind turbine generator set of the utility model improves the overall stability of the wind turbine generator set and ensures that the wind turbine generator set can operate continuously and stably in a complex and changeable marine environment, thereby achieving efficient and reliable wind energy generation.

[0060] Figure 6 The structure of the platform seat of one embodiment of the utility model is shown in FIG. Figure 1 ; Figure 7 The structure of the platform seat of one embodiment of the utility model is shown in FIG. Figure 2 .like Figure 6-7 As shown, according to one embodiment of the present utility model, the platform base 2 includes: a control structure and a base gear compartment 24 disposed at the bottom of the control structure;

[0061] The control structure includes a ballast tank and counterweight tank 21, a power generation device control cabin 22 and a gear guide control cabin 23 connected in a triangular shape;

[0062] The ballast tank and counterweight tank 21 are used to balance the platform seat 2; the power generation device control cabin 22 is used to monitor and adjust the operating status of the wind turbine 1 and the wave energy power generation device 3; the gear guide control cabin 23 is used to control the rotation of the base gear cabin 24 on the mooring system 4.

[0063] In this embodiment, the platform seat 2 not only supports and fixes the wind turbine 1 and the wave energy power generation device 3, but also ensures the stability and balance of the entire device; the platform seat 2 includes a control structure and a base gear cabin 24; the control structure adopts a tripod design, which greatly increases the stability of the combined power generation device compared to the traditional column-type base; the control structure includes three main parts: a ballast tank and a counterweight cabin 21, a power generation device control cabin 22, and a gear guide rail control cabin 23, which are connected in a triangular manner to form a stable foundation; specifically, in this embodiment, the ballast tank and the counterweight cabin 21, the power generation device control cabin 22, and the gear guide rail control cabin 23 all adopt a cylindrical column structure, the interior is a storage space, and the exterior is connected to each other through the platform seat steel frame pipe, and the entire platform seat 2 forms a stable triangular structure. Since the wave energy power generation device 3 is only configured on one side, the platform seat 2 is unbalanced in a certain direction. The ballast tank and the counterweight cabin 21 are configured on the column on the other side of the wave energy power generation device, and the entire platform seat 2 is balanced by increasing the weight of this side. The power generation device control cabin 22 is located at one corner of the control structure triangle structure, and it is responsible for monitoring and adjusting the operating status of the wind turbine 1 and the wave power generation device 3; through the power generation device control cabin 22, the operator can understand the operating status of the equipment in real time, and make adjustments and optimizations as needed. The gear rail control cabin 23 is connected to the base gear cabin 24, and the gear rail control cabin 23 is responsible for controlling the rotation of the platform seat 2 on the mooring system 4; when the wind or wave conditions change, the gear rail control cabin 23 will adjust the rotation angle of the base gear cabin 24 so that the platform seat can yaw to the optimal position, thereby maximizing the use of wind energy and wave energy for power generation.

[0064] The platform seat of the utility model ensures the stability and balance of the entire integrated yaw wind-wave combined power generation device through a unique tripod design and tight connection between various parts, providing a solid foundation for efficient and reliable wind and wave energy generation. The utility model adopts a tripod base, which greatly increases the stability of the wind turbine compared to the previous column type; the wave energy platform is unbalanced because it is only equipped with a wave energy power generation device on one side. The column on the other side of the wave energy power generation device is equipped with a ballast tank and a counterweight tank to keep the entire platform seat in a balanced state.

[0065] Figure 8 A schematic diagram of the structure of a mooring system according to an embodiment of the present utility model Figure 1 .like Figure 8 As shown, the base gear compartment 24 is composed of two rows of corresponding arc-shaped gears;

[0066] The mooring system 4 includes a gear guide rail 41 and a first motor. The gear guide rail 41 is embedded in a groove on a top platform of the mooring system 4. The first motor is disposed inside the mooring system 4 and is connected to the gear guide rail 41.

[0067] The base gear compartment 24 is meshedly connected with the gear guide rail 41 , and the gear guide rail 41 drives the base gear compartment 24 to perform circular motion under the control of the first motor.

[0068] In this embodiment, the mooring system 4 is located at the top of the platform, and a first motor is provided inside the mooring system 4. The first motor is connected to a gear guide rail 41 embedded in a groove of the top platform; the gear guide rail 41 is engaged with a base gear compartment 24 at the bottom 2 of the platform, and the gear compartment is composed of two rows of corresponding arc gears. The gear guide rail 41 can drive the base gear compartment 24 to perform circular motion under the control of the first motor to prevent the combined power generation device from derailing due to wave impact.

[0069] The platform seat 2 is a semi-submersible design with a triangular hollow design. It carries a wind turbine 1 for wind power generation and a wave energy generator 3 for wave power generation, and has good wave permeability. The platform seat 2 includes: a ballast tank and a counterweight tank 21, a generator control cabin 22, a gear guide control cabin 23, and a base gear cabin 24; the ballast tank and the counterweight tank 21 can play the role of a balanced platform seat. The platform seat 2 is only arranged with a wave energy generator 3 on one side. The blades 12 of the wind turbine 1 and the wave energy generator 3 are also on the same side, causing the center of gravity to shift toward the wave energy generator 3. Therefore, it is necessary to add appropriate counterweights or pump water on the opposite side to stabilize the center of gravity; the generator control cabin 22 is mainly used to monitor and adjust the wind turbine The gear guide control cabin 23 mainly controls the meshing movement of the gears at the bottom of the platform seat 2, so that the platform seat 2 performs variable speed circular motion, and adjusts the directions of the wind turbine set 1 and the wave energy power generation device 3 in real time according to the wind and wave environment conditions to achieve consistency in wind and wave response; the base gear cabin 24 is designed with two rows of arc gears, and the gears mesh with the base gear cabin 24 at the bottom of the platform seat 2.

[0070] The mooring system and the platform seat of the utility model are connected in a meshing manner. The platform seat remains stationary and performs controllable variable speed circular motion driven by the gear guide rail in the mooring system, which can effectively prevent derailment and adjust the posture of the power generation device in real time to maximize the energy capture efficiency.

[0071] Fig. 9 This is a schematic diagram of the structure of a wave energy power generation device according to one embodiment of the utility model. Fig. 9 As shown, in this embodiment, the wave energy power generation device 3 adopts an eagle-type wave-absorbing floating body.

[0072] The wave energy power generation device 3 includes: an eagle-type floating body 31, a support arm 32, and a hinge sleeve 33; one end of the support arm 32 is movably connected to the eagle-type floating body 31, and the other end is fixedly connected to the hinge sleeve 33, and the hinge sleeve 33 is sleeved and connected to one side of the platform seat 2.

[0073] In this embodiment, the eagle-type wave-absorbing floating body includes the following components: an eagle-type floating body 31, a support arm 32, and a hinge sleeve 33. The appearance of the eagle-type floating body 31 is similar to the head of an eagle, and the arc-shaped design of the bottom of the floating body just matches the direction of the wave, greatly reducing the impact of the wave front; the support arm 32 adopts a large triangular shape, which has stronger support and can withstand the weight of the wave-absorbing floating body when it swings; one end of the hinge sleeve 33 is connected to the steel frame pipe of the platform seat, and the other end is connected to the support arm 32, which is equivalent to a bearing seat. It is well known to those skilled in the art that the eagle-type wave-absorbing floating body is a prior art, and the details will not be further expanded here.

[0074] Fig.10 A schematic diagram of the structure of a mooring system according to an embodiment of the present utility model Figure 2 .like Figure 8 and Fig.10 As shown, the mooring system 4 includes: a mooring system cabin 42 and a second motor;

[0075] A plurality of mooring system compartments 42 are evenly arranged at the bottom of the mooring system 4, and an anchor windlass controlled by a second motor is arranged inside each mooring system compartment 42, and the anchor windlass is used to retract and release the anchor chain 5;

[0076] A ballast tank 43 is provided at the bottom of the mooring system 4 and between every two mooring system cabins 42; the ballast tank 43 is provided with a watertight door, and a water pump is provided inside each ballast tank 43; the state of the watertight door and the water pump is controlled by the control structure of the platform seat 2, and the sinking and buoyancy of the mooring system 4 is controlled by adjusting the water amount in the ballast tank 43.

[0077] In this embodiment, the mooring system 4 includes the following components: a gear guide 41, an anchor system compartment 42, and a ballast tank 43; the gear guide 41 is embedded in the groove of the top platform of the mooring system 4, and multiple gear sets are installed inside the groove. The gear sets mesh with the base gear compartment 24, and the base gear compartment 24 remains stationary. The gear guide 41 drives the base gear compartment 24 to make a circular motion through the rotation of the first motor, and the gear set is driven in both directions by the first motor, so that the platform seat 2 is more convenient and efficient in dealing with wind and waves; there are 4 anchor system compartments 42 in total, and the internal anchor windlass Controlled by the second motor set inside the mooring system 4, the anchor chain 5 can be freely retracted and released, and the device posture can be more conveniently stabilized. The mooring system cabins 42 are evenly distributed on the base, and multi-point mooring positioning is relatively convenient to install, and the cost is easy to control; there are 4 ballast tanks 43, which are evenly distributed at the bottom of the mooring system 4 and staggered with the mooring system cabins 42. The ballast tanks 43 are equipped with watertight doors. Three water pumps are arranged in each ballast tank 43. The watertight door switches are remotely controlled by the control room, which can realize remote control of pumping and drainage. According to the wave height conditions, the mooring system 4 is controlled to float and dive. The whole set of combined power generation device integrates three systems into one, and all operations are remotely controlled by the control room, which not only replaces the traditional mode that requires manual operation, but also ensures the personal safety of operators in bad weather; the mooring system 4 is not only equipped with ballast tanks 43 inside, but also equipped with gear guide rails 41 meshing with the base gear cabin 24 of the bottom 2 of the platform on the external deck. This design can prevent the combined power generation device from being derailed by wave impact.

[0078] The mooring system of the utility model realizes the retraction and deployment of the anchor chain through multiple mooring system compartments, and combines the water volume adjustment of the ballast tank to realize the precise control of the sinking and floating of the system, thereby ensuring the stability and safety of the mooring.

[0079] Fig.11 The working process of the wind-wave combined power generation device with integrated yaw in one embodiment of the utility model Figure 1 ; Fig.12 The working process of the wind-wave combined power generation device with integrated yaw in one embodiment of the utility model Figure 2 ; Fig.13 This is a graph of wind speed and wave data collected in one embodiment of the utility model. Figure 11-13 As shown, the control strategy of the wind-wave combined power generation device with integrated yaw of the utility model is as follows:

[0080] (1) When the wind speed v and wave height h are within the working range, the wind turbine 1 and the wave energy generating device 3 work synchronously, and the platform seat 2 is equipped with sensors, a weather station and wind and wave prediction equipment; under normal working conditions, the wind turbine 1 and the wave energy generating device 3 work in the same direction, and the mooring system 4 self-locks through gears, so that the platform can work more stably within the normal wave height range; when the wind direction and wave direction change, the wind and wave prediction equipment and related sensors start working to collect wind speed and wave height data; the conversion efficiency of the wind turbine and the wave energy device is calculated through background data calculation, and the gear guide control cabin 23 changes to the direction with high conversion efficiency according to the calculation results; under normal conditions, the wind and waves at sea are almost of the same frequency, and the wind and wave intensity at night is often greater than that during the day, with the maximum wind speed reaching 10m / s and the maximum wave height reaching 4m / s. At night and early morning, the wind and waves reach their peaks at the same time, and the generator work efficiency is maximized at this time;

[0081] (2) After the sensor has collected all the wind speed and wave height data, the background database integrates the data and begins to analyze the collected data. According to the real-time data, the gear rail control cabin 23 adjusts the wind-wave combined power generation device to maximize the power generation. The power obtained by the wind turbine unit 1 is expressed as:

[0082]

[0083] Among them, S and Cp are both fixed values, S is the swept area of ​​the wind rotor, Cp is the wind energy absorption coefficient of the wind rotor, and only v is a variable value, v is the wind speed, the larger v is, the greater the power is;

[0084] The input power expression of wave energy power generation device 3 is:

[0085]

[0086] Wave energy capture power = 1 / 2 * wave height * period * wave width * conversion efficiency. According to the expression, only the wave height h is a variable value, and the others are basically fixed values. The larger h is, the greater the wave energy capture power is. Now we only need to input these two expressions into the control system and use the real-time data sent back by the sensor to calculate which side has the larger wind speed v or wave height h. The control cabin controls the mooring system 4 according to the maximum value of the data, and the mooring system 4 will change direction to generate electricity with the largest wave (wave) surface. This realizes the practice of artificial intelligence algorithm on the wind and wave combined device to maximize the power generation efficiency.

[0087] (3) When the wind speed v and wave height h are beyond the working range, the ballast tank 43 in the mooring system 4 will be filled with water and completely sunk to the seabed to reduce resistance. The wind and wave combined power generation device will activate the ballast system and inject an appropriate amount of water until the wind and wave combined power generation device dives above the typhoon-resistant water level. The wind turbine 1 will lock the wind rotor and retract the blades 12 to minimize wind resistance.

[0088] The utility model has good adaptability and servo performance to different wind and wave resources, and can realize the efficient capture of wind and wave energy, so that the wind and wave energy collection form is not limited by the uneven distribution of resources, and the loss energy is maximized. Through a series of control strategies, algorithms and structural designs, the maximum power generation can be achieved:

[0089] (1) Wind turbine 1 adopts a triangular tower structure: The triangular tower is built on a semi-submersible platform, making the structure of wind turbine 1 more stable. When viewed from a distance, the novel structural design of the device virtually becomes a landmark building.

[0090] (2) Wave energy power generation device 3: The design of the hydraulic wave energy power generation device using the Eagle-type wave-absorbing floating body is equipped with a hydraulic system including an accumulator, a hydraulic pump station, a high-level oil tank, and hydraulic pipelines to convert the wave kinetic energy into storage pressure and finally into electrical energy. The hydraulic energy conversion system is reliable, efficient, and stable. There are many successful cases in China, rich construction experience, and the failure rate is gradually decreasing.

[0091] (3) Control strategy for wind and wave power generation device: A control method suitable for wind and wave power generation device is proposed. Under normal sea conditions, a series of wind and wave prediction equipment and related sensors are used to collect wind speed and wave height data. The control cabin is transformed in the direction of high conversion efficiency according to the calculated results to maximize the work efficiency. Under extreme sea conditions, the wind and wave power device suspends work, and all ballast systems are filled with water under the action of the control system until the device dives to the typhoon safety range, minimizing the wave-facing area to reduce the wave load.

[0092] The utility model integrates and utilizes two renewable energy sources, wind energy and wave energy, and realizes the coordinated power generation of multiple energy sources by installing wind turbines and wave energy power generation equipment on the same platform. This integration can maximize the efficiency of energy utilization and reduce dependence on traditional energy. The utility model partially submerges underwater, has a large space utilization rate, and can be laid out in a small space at sea. Compared with traditional offshore wind farms and wave energy power generation equipment, semi-submersible platforms can save space resources and improve space utilization efficiency. It has strong wind and wave resistance and has strong wind and wave resistance. The platform can maintain stable operation under harsh sea conditions to ensure the safety and reliability of the equipment. Sustainable development will not produce greenhouse gases and pollutants such as carbon dioxide, and has little impact on the environment. At the same time, the construction and operation of the platform can also promote the development of the marine economy and promote the goal of sustainable development. With strong comprehensive performance, the semi-submersible wind and wave combined power generation platform can not only generate electricity, but also carry out comprehensive utilization of multiple functions such as marine observation and marine scientific research. Various sensors and monitoring equipment can be installed on the platform to monitor the marine environment and meteorological conditions in real time, and provide data support for marine scientific research and marine resource development. It is a new energy utilization platform with broad application prospects and development potential.

[0093] The utility model proposes a combined power generation of wind energy and wave energy. Compared with the existing single wind turbines and wave energy devices, the power generation efficiency is greatly improved. This multi-energy complementary power generation device actively responds to the carbon neutral development strategy advocated by the country; it realizes the efficient conversion of wind and wave energy resources into electrical energy, and improves the utilization efficiency of marine renewable energy. At the same time, the device has twice the capture efficiency of previous single energy collection devices; finally, the addition of a control system can improve the safety and reliability of the wave energy device under normal environments and extreme sea conditions.

[0094] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0095] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wind-wave combined power generation device with integrated yaw, characterized in that: include: A wind turbine (1) for generating electricity using wind power; A platform seat (2) used for supporting and fixing the wind turbine set (1) and the wave energy power generation device (3); The wave energy power generation device (3) is used to generate electricity using wave energy; A mooring system (4) for mooring the entire combined power generation device; An anchor chain (5) for anchoring the mooring system (4) to the seabed; The wind turbine generator set (1) is arranged on the top of the platform seat (2), the platform seat (2) is arranged on the top of the mooring system (4) and is rotatably connected to the mooring system (4), and the wave energy power generation device (3) is arranged on one side of the platform seat (2).

2. The wind-wave combined power generation device with integrated yaw according to claim 1, characterized in that: The wind turbine generator set (1) comprises: a nacelle (11), blades (12), a hub (13), and a tower (14); The nacelle (11) is fixed to the top of the platform seat (2) via the tower (14); the hub (13) is fixedly connected to the nacelle (11) via a main shaft, and the hub (13) rotates around the main shaft in an operating state; the blades (12) are connected to the hub (13) via bolts to form a wind wheel.

3. The wind-wave combined power generation device with integrated yaw according to claim 2 is characterized in that: A plurality of tower frames (14) are provided, and the plurality of tower frames (14) are evenly distributed on the top of the upper platform seat (2); one end of each tower frame (14) is installed on the top of the platform seat (2), and the other end is connected to the cabin (11).

4. The wind-wave combined power generation device with integrated yaw according to claim 1, characterized in that: The platform seat (2) comprises: a control structure and a base gear compartment (24) arranged at the bottom of the control structure; The control structure comprises a ballast tank and a counterweight tank (21), a power generation device control cabin (22) and a gear guide rail control cabin (23) connected in a triangular shape; The ballast tank and counterweight tank (21) are used to balance the platform seat (2); the power generation device control cabin (22) is used to monitor and adjust the operating status of the wind turbine (1) and the wave energy power generation device (3); and the gear rail control cabin (23) is used to control the rotation of the base gear cabin (24) on the mooring system (4).

5. The wind-wave combined power generation device with integrated yaw according to claim 4 is characterized in that: The base gear compartment (24) is composed of two rows of corresponding arc-shaped gears; The mooring system (4) comprises a gear guide rail (41) and a first motor, wherein the gear guide rail (41) is embedded in a groove of a top platform of the mooring system (4), and the first motor is arranged inside the mooring system (4), and the first motor is connected to the gear guide rail (41); The base gear compartment (24) is meshingly connected with the gear guide rail (41), and under the control of the first motor, the gear guide rail (41) drives the base gear compartment (24) to perform circular motion.

6. The wind-wave combined power generation device with integrated yaw according to claim 1, characterized in that: The wave energy power generation device (3) adopts an eagle-type wave-absorbing floating body.

7. The wind-wave combined power generation device with integrated yaw according to claim 6, characterized in that: The wave energy power generation device (3) comprises: an eagle-type floating body (31), a support arm (32), and a hinge sleeve (33); one end of the support arm (32) is movably connected to the eagle-type floating body (31), and the other end is fixedly connected to the hinge sleeve (33); the hinge sleeve (33) is sleeve-connected to one side of the platform seat (2).

8. The wind-wave combined power generation device with integrated yaw according to claim 1, characterized in that: The mooring system (4) comprises: a mooring system cabin (42) and a second motor; A plurality of the mooring system chambers (42) are evenly arranged at the bottom of the mooring system (4), and each of the mooring system chambers (42) is provided with an anchor windlass controlled by the second motor, and the anchor windlass is used to retract and release the anchor chain (5); A ballast tank (43) is provided at the bottom of the mooring system (4) and between every two of the mooring system cabins (42); the ballast tank (43) is provided with a watertight door, and a water pump is provided inside each ballast tank (43); the state of the watertight door and the water pump is controlled by the control structure of the platform seat (2), and the sinking and buoyancy of the mooring system (4) is controlled by adjusting the water volume in the ballast tank (43).

9. The wind-wave combined power generation device with integrated yaw according to claim 1, characterized in that: The windward surface of the wind turbine generator set (1) and the wave-front surface of the wave energy power generation device (3) face the same direction, and the wind turbine generator set (1) and the wave energy power generation device (3) are both arranged on the same side of the wind-wave combined power generation device.

10. The wind-wave combined power generation device with integrated yaw according to claim 1, characterized in that: The wind turbine set (1) and the wave energy power generation device (3) are both connected to the transformer via a submarine cable.

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