Self-adaptive vibration suppression and energy recovery double-effect intelligent device of floating fan

Abstract

The invention discloses a floating fan self-adaptive vibration suppression and energy recovery double-effect intelligent device, and belongs to the technical field of wind power. An air pressure balance pipe is installed at the axis of the upper middle section of a damping energy dissipation system, a one-way valve is installed at the lower section of a water flow partition plate, and a water stop plate moves downwards relative to the water flow partition plate in a tower barrel; the device is suitable for all floating type draught fan platforms with mooring systems, installation is easy, the safety redundancy of the floating type platform system facing high sea conditions is increased, the service life of the system is prolonged, energy is utilized to the maximum degree, internal self-circulation of energy is achieved through all the parts, and in the device, the service life of the system is prolonged. The energy recovery system drives a one-way valve and turbofan blades through seawater by utilizing the movement of the platform and the tensioning force of the mooring system, so that a generator is driven to generate electricity, efficient conversion of energy is realized, and electric energy generated by the energy recovery system can be directly supplied to the auxiliary power system, so that an energy internal circulation system is formed; and the overall energy utilization efficiency of the device is improved.

Description

Technical Field

[0001] This invention relates to a dual-effect intelligent device for vibration suppression and energy recovery, and particularly to a dual-effect intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines, belonging to the field of wind power technology. Background Technology

[0002] With the continuous development of society, people's demand for energy is increasing. The environmental pollution caused by traditional fuel energy and its non-renewable nature make the application and promotion of renewable clean energy increasingly important. Compared with other renewable clean energy, wind energy has attracted much attention due to its abundance, feasibility and the maturity of wind turbines.

[0003] Currently, offshore wind energy extraction devices are mainly wind turbines, which can be roughly divided into two categories based on the water depth. One type is fixed wind turbines, which are usually built in near-shore areas, in shallow water areas with a water depth of 0 to 50 meters. Common fixed wind turbines include monopile type, gravity foundation type, tripod type, etc. The other type is floating wind turbines. As the water depth increases, when the water depth exceeds 50 meters, that is, when it is in deep water areas, the foundation cost gradually increases, and the technical feasibility difficulty also continues to increase.

[0004] At this time, the foundation of the wind turbine platform built on the seabed is difficult to fix, so the wind turbine is built on a floating platform. Common floating wind turbines are classified into barge type, tension leg type, semi-submersible type, etc., according to the different floating platforms.

[0005] The low surface roughness of the deep sea results in higher wind speeds and more intense extreme winds (such as typhoons) compared to those on land. At the same time, the influence of ocean currents and uneven sea temperature distribution makes the wind, wave and current environment in the deep sea more complex. Under the influence of wind, wave and current, floating platforms will experience significant movement. Large platform movement will cause the wind turbine to deviate from the direction of the incoming current, resulting in a large yaw error, which greatly reduces the wind energy utilization efficiency. In addition, the platform movement will also cause frequent changes in the blade pitch angle, increasing the fatigue load on the blades and causing fluctuations in the wind turbine's output power.

[0006] In order to maintain the stability of the turbine platform, most existing floating wind turbines are directly connected to the mooring system. When the platform is in a complex environment, the combined effect of wind, waves and current will cause the platform's motion response to change drastically, which will also cause the load on the mooring line to change drastically. The mooring line usually bears a large load.

[0007] Vibration suppression and energy recovery technologies for floating wind turbines can be broadly classified into two categories: passive and active. Passive vibration suppression methods typically include optimizing the aerodynamic shape of the blades, installing tuned mass dampers (TMDs), and tuned liquid column dampers (TLDs).

[0008] The optimized blade aerodynamic shape is less robust to randomly changing wind speeds and has a higher initial cost.

[0009] In addition, TMD or TLD usually require a large space in the wind turbine, increasing the weight and complexity of the structure, and are usually only effective in controlling vibration in a single frequency range, with poor adaptability to frequency changes.

[0010] With the development of technology, traditional passive vibration control methods have been improved and expanded. Based on passive tuned mass dampers (TMD) or tuned liquid column dampers (TLD), sensors are added to monitor the fan vibration in real time.

[0011] By changing the parameters of the damper, the frequency of the wind turbine can be adapted to different environmental conditions. However, the additional sensors and actuators increase the cost significantly, making this control method not widely used.

[0012] Active vibration suppression is also an effective control method. For floating wind turbines, the most common active control methods are yaw control and pitch control. Yaw control mainly reduces the vibration caused by asymmetric aerodynamic loads by adjusting the nacelle angle.

[0013] However, yaw control has high requirements for response time to changes in wind direction and can also generate fatigue loads, reducing the service life of the wind turbine.

[0014] Pitch control primarily increases the average pitch angle to reduce the blade angle of attack, thereby decreasing the turbine's thrust and reducing the excitation sources for platform sway and yaw. However, high-frequency pitch movements and the cyclical operation of hydraulic pressure in the servo system can reduce actuator life and increase blade fatigue damage.

[0015] The introduction of artificial intelligence technology has provided new possibilities for wind turbine control. Adaptive control methods based on deep reinforcement learning have also been widely studied. Control methods using artificial intelligence technology use deep learning models to predict vibration trends, and then dynamically adjust the control strategy based on the prediction results. By changing the pitch angle, yaw angle, etc., vibration suppression can be achieved. However, intelligent vibration suppression methods require a large amount of data and computing resources for training, and the deployment of the algorithm is difficult.

[0016] Wind turbine energy recovery technology is often used in conjunction with vibration suppression technology. Existing energy recovery devices based on hydraulic damping absorb vibration energy through hydraulic cylinders and drive hydraulic motors to recover energy. By adding an energy recovery device on the basis of vibration suppression, energy can be further utilized or consumed, reducing the structural vibration response of the system.

[0017] In addition, installing additional energy recovery devices, such as water turbines or power generation units on floating platforms or towers, to convert vibrational kinetic energy into electrical energy is also a means of energy recovery. However, these technologies may affect the overall dynamic characteristics of the wind turbine and have lower adaptability to the complex offshore environment.

[0018] In summary, most current vibration suppression and energy recovery methods are based on the upper structure of the wind turbine, and some devices are installed independently on the wind turbine tower or platform, with little integration with the mooring system.

[0019] To overcome the above problems, a dual-effect intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines is needed to optimize the aforementioned shortcomings. Summary of the Invention

[0020] The main objective of this invention is to overcome the following: In order to maintain the stability of the existing floating wind turbines, most of them are directly connected to the mooring system. When the platform is in a complex environment, due to the combined effect of wind, waves and current, the platform's motion response changes drastically, which leads to drastic changes in the load on the mooring line, which usually bears a large load.

[0021] Existing floating wind turbine vibration suppression and energy recovery technologies can be broadly categorized into passive and active methods. Passive vibration suppression typically includes optimizing blade aerodynamic shape, installing tuned mass dampers (TMDs), and tuned liquid column dampers (TLDs). However, the optimized blade aerodynamic shape is less robust to randomly changing wind speeds and has a high initial cost. TMDs or TLDs often require significant space within the wind turbine, increasing structural weight and complexity, and are generally only effective for controlling vibrations within a single frequency range, exhibiting poor adaptability to frequency variations. With technological advancements, traditional passive vibration suppression control methods have been improved and expanded. By adding sensors to passively tuned mass dampers (TMDs) or tuned liquid column dampers (TLDs) to monitor wind turbine vibration in real time, and adjusting damper parameters to adapt to frequency changes under different environmental conditions, these additional sensors and actuators significantly increase costs, preventing the widespread adoption of this control method.

[0022] Active vibration suppression is also an effective control method. For floating wind turbines, the most common active control methods are yaw control and pitch control. Yaw control mainly reduces vibration caused by asymmetric aerodynamic loads by adjusting the nacelle angle. However, yaw control has high response time requirements for wind direction changes and can also generate fatigue loads, reducing the service life of the wind turbine. Pitch control mainly increases the average pitch angle to reduce the blade angle of attack, thereby reducing the thrust of the wind turbine and reducing the excitation sources of platform sway and yaw. However, high-frequency pitch actions and the cyclic operation of hydraulic pressure in the servo system can reduce the life of actuators and increase blade fatigue damage. With the introduction of artificial intelligence technology, new expansion has been provided for wind turbine control. Adaptive control methods based on deep reinforcement learning have also been widely studied. Control methods using artificial intelligence technology use deep learning models to predict vibration trends and then dynamically adjust the control strategy based on the prediction results. By changing the pitch angle, yaw angle, etc., the vibration suppression purpose can be achieved. However, intelligent vibration suppression methods require a large amount of data and computing resources for training, and the deployment of algorithms is difficult.

[0023] Wind turbine energy recovery technology is usually used in conjunction with vibration suppression technology. Existing hydraulic damping-based energy recovery devices absorb vibration energy through hydraulic cylinders and drive hydraulic motors to recover energy. Adding an energy recovery device on top of vibration suppression can further utilize or consume energy and reduce the structural vibration response of the system. In addition, setting up additional energy recovery devices, such as installing water turbines or power generation devices on floating platforms or towers, to convert vibration kinetic energy into electrical energy is also a means of energy recovery. However, these technologies may affect the overall dynamic characteristics of the wind turbine and have low adaptability to the complex offshore environment.

[0024] In summary, most current vibration suppression and energy recovery methods are based on the superstructure of the wind turbine, and some devices are installed independently on the wind turbine tower or platform, with little integration with the mooring system. We need to provide a smart device that provides both adaptive vibration suppression and energy recovery for floating wind turbines.

[0025] The objective of this invention can be achieved by adopting the following technical solution: An intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines is used in floating offshore wind turbines. The floating wind turbines have mooring lines distributed below them. The upper end of the mooring lines is connected to the buoys. A tower is installed on the top of the buoys. An energy recovery system is installed at the bottom of the buoys. A nacelle is installed on the top of the tower. The connection between the buoy and the mooring line consists of a damping energy dissipation system and turbofan blades; The damping energy dissipation system consists of a pressure balance pipe, a buffer spring, a damping spring, a baffle plate, a water flow baffle plate, a one-way valve, turbine blades, and a connecting rod. The upper and middle sections of the damping energy dissipation system are equipped with air pressure balance pipes, the lower section of the air pressure balance pipes is equipped with buffer springs, support rods are installed on both sides of the air pressure balance pipes, damping springs are installed at the bottom of the support rods, and a partition is installed at the lower end of the damping springs. A water flow baffle is installed at the bottom of the baffle, a one-way valve is installed at the lower section of the water flow baffle, a turbine blade is distributed around the outer ring of the one-way valve, and a connecting rod is installed at the bottom of the one-way valve at the lower end of the water flow baffle. The mooring line tension is transmitted to the damping spring through the connecting rod and the partition. The tension of the damping spring causes the partition and the baffle to move relative to each other inside the device. The baffle moves downward relative to the water flow baffle inside the tower.

[0026] Preferably, the energy recovery system consists of a one-way valve, turbofan blades, sleeve II, a power generation device, and a connecting rod; The bottom of the one-way valve is fitted with a second sleeve, and a power generation device is installed on the outer ring of the baffle. A connecting rod runs through the water flow baffle, seawater, one-way valve, turbine blades, the second sleeve, and the power generation device.

[0027] Preferably, the movement of the damping fluid or seawater between the baffle and the water flow baffle is caused by squeezing and drawing in by a one-way valve.

[0028] Preferably, a connecting rod is installed on the shaft of the turbofan blade, the second sleeve, and the power generation device.

[0029] Preferably, one-way valves are distributed around the power generation device and the turbofan blades.

[0030] Preferably, a sleeve is fitted on the connecting rod between the partition and the water-blocking plate, and an electric drive device is fitted on the outer ring of the sleeve. Powered turbofan blades are distributed inside the water-blocking plate.

[0031] Preferably, the lower section of the water flow baffle is provided with seawater, and the cylinder wall is provided with a pressure balance pipe, a support rod, a buffer spring, a damping spring, a baffle, a sleeve, an electric drive device, a water baffle, a power turbofan blade, a water flow baffle, seawater, a one-way valve, and a turbofan blade.

[0032] Preferably, the support rod and the damping spring are two sets of structures, with the lower end of the damping spring fixedly connected to both ends of the partition, and the float floats on the sea surface.

[0033] Beneficial technical effects of the present invention: The present invention provides a dual-effect intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines. This device can effectively improve the stability of floating wind turbine platforms. It achieves the consumption of platform motion energy through a damping system. The damping spring, damping fluid (seawater), and baffle work together to consume the platform's motion energy through the movement of the damping spring and the unidirectional flow of seawater. The device has strong robustness and can effectively reduce the heave, sway, and longitudinal sway amplitudes of the floating wind turbine platform under the coupling of wind, waves, and current, thereby improving platform stability and improving wind energy utilization efficiency. At the same time, this device is applicable to all floating wind turbine platforms with mooring systems and is easy to install.

[0034] The device can reduce the load on the mooring system, and the auxiliary power system can provide adaptive tension and compression to help the mooring system reduce the load on the mooring line when encountering sudden loads or instantaneous overloads. It also acts as a load buffer to reduce the damage of severe loads to the platform's stability, increase the safety redundancy of the floating platform system in the face of high sea states, and extend the service life of the system.

[0035] This device maximizes energy utilization, with each part achieving internal energy self-circulation. In this device, the energy recovery system utilizes the platform's motion and the mooring system's tension to drive one-way valves and turbofan blades via seawater, thereby driving the generator to generate electricity, achieving efficient energy conversion. The electrical energy generated by the energy recovery system can directly power the auxiliary power system, thus forming an internal energy circulation system and improving the overall energy utilization efficiency of the device.

[0036] In summary, this patent proposes a vibration suppression and energy recovery device suitable for floating wind turbine platforms. By combining adaptive control, vibration suppression and energy recovery technologies, it provides an efficient and sustainable solution for floating wind turbines, improves the robustness of wind turbines in the face of complex marine environments, and brings technical value and economic benefits to wind energy development and platform stability improvement. Attached Figure Description

[0037] Figure 1 This is a diagram illustrating the overall installation effect of a preferred embodiment of the floating wind turbine adaptive vibration damping and energy recovery dual-effect intelligent device according to the present invention. Figure 2 This is a schematic diagram of a preferred embodiment of the floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device according to the present invention; Figure 3 This is a cross-section of the energy recovery device according to a preferred embodiment of the floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device of the present invention; Figure 4 A schematic diagram of a preferred embodiment of the floating wind turbine adaptive vibration damping and energy recovery dual-effect intelligent device according to the present invention, showing the one-way valve controlling the water flow direction. Figure 5 This is a schematic diagram of a preferred embodiment of the floating wind turbine adaptive vibration damping and energy recovery dual-effect intelligent device according to the present invention, showing the direction of water flow controlled by a one-way valve. Figure 6 A schematic diagram of a one-way valve of a preferred embodiment of the floating wind turbine adaptive vibration damping and energy recovery dual-effect intelligent device according to the present invention; Figure 7 The cross-section of the auxiliary power unit is shown in a preferred embodiment of the floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device according to the present invention.

[0038] In the diagram: 1. Pressure balance pipe; 2. Support rod; 3. Buffer spring; 4. Damping spring; 5. Baffle plate; 6. Sleeve 1; 7. Electric drive unit; 8. Water baffle plate; 9. Power turbofan blade; 10. Cylinder wall; 11. Water flow baffle plate; 12. Seawater; 13. One-way valve; 14. Turbofan blade; 15. Sleeve 2; 16. Power generation unit; 17. Connecting rod; 18. Mooring line; 19. Buoy; 21. Tower; 22. Engine room; 23. Damping energy dissipation system; 24. Energy recovery system. Detailed Implementation

[0039] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0040] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device provided in this embodiment is used for floating offshore wind turbines. A mooring line 18 is distributed below the turbine. The upper end of the mooring line 18 is connected to the buoy 19. A tower 21 is installed on the top of the buoy 19. An energy recovery system 24 is installed at the bottom of the buoy 19. A nacelle 22 is installed on the top of the tower 21. The buoy 19 and the mooring line 18 are connected by a damping energy dissipation system 23 and a turbofan blade 14. The damping energy dissipation system 23 consists of a pressure balance pipe 1, a buffer spring 3, a damping spring 4, a baffle 5, a water flow baffle 11, a one-way valve 13, a turbofan blade 14, and a connecting rod 17. The damping energy dissipation system 23 has an air pressure balance pipe 1 installed on the upper and middle sections of the shaft. The lower section of the air pressure balance pipe 1 is equipped with buffer springs 3. Support rods 2 are installed on both sides of the air pressure balance pipe 1. Damping springs 4 are installed at the bottom of the support rods 2. A partition 5 is installed at the lower end of the damping springs 4. A water flow baffle 11 is installed at the bottom of the baffle 5. A one-way valve 13 is installed at the lower section of the water flow baffle 11. Turbine fan blades 14 are distributed around the outer ring of the one-way valve 13. A connecting rod 17 is installed at the bottom of the one-way valve 13 at the lower end of the water flow baffle 11. The tension of the mooring line 18 is transmitted to the damping spring 4 through the connecting rod 17 and the partition 5. The tension of the damping spring 4 causes the partition 5 and the water baffle 8 to move relative to each other inside the device. The water baffle 8 moves downward relative to the water flow baffle 11 inside the tower 21.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the air pressure balance pipe 1 is connected to the platform float and is used to balance the air pressure inside the device. When the floating platform experiences six degrees of freedom motion such as swaying, rolling, heaving, pitching, and yaw due to complex sea conditions, the mooring system will generate tension on the side with larger amplitude to restrict the platform's movement. At this time, the mooring tension is transmitted to the damping spring 4 through the connecting rod 17 and the baffle 5, causing the spring to tension. The tension of the damping spring 4 drives the baffle 5 and the water flow baffle 11 to move relative to each other inside the device. At the same time, the damping spring 4 generates a restoring force due to tension, thereby relieving the tension force on the mooring system.

[0042] Furthermore, the water flow baffle 11 moves downward relative to the cylinder wall, causing seawater to be squeezed out of the device through the one-way valve 13. The working mechanism is as follows: when the platform undergoes six-degree-of-freedom motion in a complex wind and wave environment, one side of the platform will tilt up and float relative to the initial state. At this time, the mooring line works and generates tension force. This tension force is transmitted to the damping spring 4 along the connecting rod 17, and at the same time, it drives the baffle 5 and the water flow baffle 11 to move downward relative to the cylinder wall 10. Seawater is squeezed out of the one-way valve 13 due to the pressure of the water flow baffle 11, and drives the turbine blades 14 to rotate. When the tilted side of the platform sinks relative to the initial state due to oscillation motion, the mooring line relaxes. Since the damping spring 4 is tensioned to provide restoring force, it drives the baffle 5 and the water flow baffle 11 to move upward relative to the cylinder wall 10, drawing seawater from the one-way valve 13 into the device.

[0043] In summary, the reciprocating motion of the platform causes the mooring line to be tensioned and relaxed. When the mooring line is tensioned, some of the kinetic energy is converted into the potential energy of the damping spring 4, which continuously drives the water flow baffle 11 to squeeze and suck in seawater. The damping liquid seawater is continuously squeezed and sucked in through the one-way valve 13, thereby consuming the energy of the platform's motion and achieving a damping effect. At the same time, the tensioning and relaxation motion of the damping spring 4 also consumes some energy. The two parts together form a damping energy dissipation system, which continuously consumes the kinetic energy of the platform's rotation around the axis under complex wind and waves, reducing the amplitude.

[0044] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in a preferred embodiment, based on the above method, the energy recovery system 24 further comprises a one-way valve 13, a turbofan blade 14, a sleeve 15, a power generation device 16, and a connecting rod 17. The bottom of the one-way valve 13 is fitted with a sleeve 15, and the outer ring of the baffle 5 is fitted with a power generation device 16. A connecting rod 17 runs through the water flow baffle 11, seawater 12, one-way valve 13, turbofan blade 14, sleeve 15 and power generation device 16.

[0045] The damping fluid or seawater 12 moves between the partition 5 and the water flow partition 11 by being squeezed and drawn in by the one-way valve 13.

[0046] A connecting rod 17 is mounted on the axis of the turbofan blade 14, the sleeve 15, and the power generation device 16.

[0047] One-way valves 13 are distributed around the generator 16 and the turbofan blades 14.

[0048] A sleeve 6 is fitted on the connecting rod 17 between the partition 5 and the water-blocking plate 8. An electric drive device 7 is fitted on the outer ring of the sleeve 6. Power turbine blades 9 are distributed inside the water-blocking plate 8.

[0049] The lower section of the water flow baffle 11 is provided with seawater 12, and the cylinder wall 10 is provided with a pressure balance pipe 1, a support rod 2, a buffer spring 3, a damping spring 4, a baffle 5, a sleeve 6, an electric drive device 7, a water baffle 8, a power turbofan blade 9, a water flow baffle 11, seawater 12, a one-way valve 13, and a turbofan blade 14.

[0050] The support rod 2 and the damping spring 4 are two sets of structures. The lower end of the damping spring 4 is fixedly connected to both ends of the partition 5, and the float 19 floats on the sea surface.

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the one-way valve 13 is designed with a larger inlet and a smaller outlet, and has a certain angle to ensure that the water flow forms an angled spray with the baffle 5. A one-way valve plate is installed at its outlet. When water enters through the inlet and sprays out through the outlet, the one-way valve plate opens; when water enters through the outlet and sprays out through the inlet, the one-way valve plate opens, thus ensuring the one-way flow of water. See the detailed drawing of the one-way valve. Figure 4 , Figure 5 and Figure 6 .

[0052] A one-way valve plate is installed at the larger inlet to allow water to enter while blocking water from flowing out. The one-way valves 13 are divided into two types according to the direction of water flow: inward drain valves and outward drain valves. These two types of valves are symmetrically arranged along the edge of the water flow baffle. In this embodiment, there are two of each type of one-way valve. Figure 4 and Figure 5 As shown, they are symmetrically arranged around the water flow baffle.

[0053] The number of check valves can be customized and arranged symmetrically according to actual needs.

[0054] When the damping system 13 starts working, the damping fluid seawater 12 is continuously squeezed and sucked in through the one-way valve 13 during the movement of the baffle 5 and the water flow baffle 11. When the water flows in and out through the one-way valve 13, the water is sprayed out in a fixed direction along the one-way valve 13. At this time, the water will drive the turbofan blades 14 to rotate. Under the combined action of the turbofan blades 14 and the one-way valve 13, the rotor in the power generation device 16 rotates in the same direction as the sleeve 15, which is counterclockwise in this example, thereby generating electrical energy. Since the one-way valves 13 are symmetrically arranged and are set as internal and external drain valves, the turbofan blades 14 driven by the water flow always maintain a single-direction rotation during the seawater discharge and intake process, which is counterclockwise in this example. For details of the water flow direction, see Figure 4 and Figure 5 At this point, the kinetic energy generated by the platform's movement is converted into electrical energy, achieving efficient energy recovery.

[0055] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A dual-effect intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines, used for floating offshore wind turbines, with mooring lines (18) distributed below them, the upper end of the mooring lines (18) being connected to the pontoons (19), a tower (21) being installed on the top of the pontoons (19), an energy recovery system (24) being installed at the bottom of the pontoons (19), and a nacelle (22) being installed on the top of the tower (21). Its features are: The buoy (19) and the mooring line (18) are connected by a damping energy dissipation system (23) and turbofan blades (14); The damping energy dissipation system (23) consists of a pressure balance pipe (1), a buffer spring (3), a damping spring (4), a baffle (5), a water flow baffle (11), a one-way valve (13), a turbofan blade (14), and a connecting rod (17). The damping energy dissipation system (23) has an air pressure balance pipe (1) installed on the upper and middle sections of the shaft. The lower section of the air pressure balance pipe (1) is provided with buffer springs (3). Support rods (2) are installed on both sides of the air pressure balance pipe (1). A damping spring (4) is installed at the bottom of the support rod (2). A partition (5) is installed at the lower end of the damping spring (4). A water flow baffle (11) is installed at the bottom of the baffle (5), a one-way valve (13) is installed at the lower section of the water flow baffle (11), a turbine blade (14) is distributed around the outer ring of the one-way valve (13), and a connecting rod (17) is installed at the bottom of the one-way valve (13) at the lower end of the water flow baffle (11). The tension of the mooring line (18) is transmitted to the damping spring (4) through the connecting rod (17) and the partition (5). The tension of the damping spring (4) causes the partition (5) and the water baffle (8) to move relative to each other inside the device. The water baffle (8) moves downward relative to the water flow baffle (11) inside the tower (21).

2. The floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device according to claim 1, characterized in that: The energy recovery system (24) consists of a one-way valve (13), a turbofan blade (14), a sleeve (15), a power generation device (16), and a connecting rod (17); The bottom of the one-way valve (13) is fitted with a sleeve (15), and a generator (16) is fitted on the outer ring of the partition (5). A connecting rod (17) runs through the water flow partition (11), seawater (12), one-way valve (13), turbofan blade (14), sleeve (15) and generator (16).

3. The floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device according to claim 2, characterized in that: The damping fluid or seawater (12) moves between the baffle (5) and the water flow baffle (11) by being squeezed and drawn in by the one-way valve (13).

4. The intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines according to claim 2, characterized in that: A connecting rod (17) is mounted on the axis of the turbofan blade (14), sleeve two (15) and power generation device (16).

5. The floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device according to claim 4, characterized in that: One-way valves (13) are distributed around the generator (16) and the turbine blades (14).

6. The intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines according to claim 1, characterized in that: A sleeve (6) is fitted on the connecting rod (17) between the partition (5) and the water-blocking plate (8). An electric drive device (7) is fitted on the outer ring of the sleeve (6). Power turbine blades (9) are distributed inside the water-blocking plate (8).

7. The floating wind turbine adaptive vibration suppression and energy recovery dual-effect intelligent device according to claim 2, characterized in that: The lower section of the water flow baffle (11) is distributed with seawater (12), and the cylinder wall (10) is distributed with air pressure balance pipe (1), support rod (2), buffer spring (3), damping spring (4), baffle (5), sleeve (6), electric drive device (7), water baffle (8), power turbofan blade (9), water flow baffle (11), seawater (12), one-way valve (13) and turbofan blade (14).

8. The intelligent device for adaptive vibration suppression and energy recovery of floating wind turbines according to claim 7, characterized in that: The support rod (2) and the damping spring (4) are two sets of structures. The lower end of the damping spring (4) is fixedly connected to both ends of the partition (5). The float (19) floats on the sea surface.

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