Vortex-induced vibration-based bladeless wind turbine

Abstract

The present application provides a bladeless wind power generation unit based on vortex-induced vibration. The power generation unit includes a tower barrel, a first tuned mass damper, a generator, a swing rod, and a second tuned mass damper. The first tuned mass damper is disposed inside the tower barrel and connected to the tower barrel, and the height of the first tuned mass damper inside the tower barrel is adjustable. The generator is disposed at the bottom of the tower barrel, and the generator includes a stator and a rotor that moves relative to the stator. The swing rod and the second tuned mass damper, the swing rod is swingably disposed inside the tower barrel, one end of the swing rod is movably connected to the top of the tower barrel, the other end is connected to the rotor, the second tuned mass damper is connected to the swing rod, and the height of the second tuned mass damper inside the tower barrel is adjustable. This solution can adjust the vibration frequency according to the wind speed, has a large wind speed adaptation range, and improves the utilization rate of wind energy.

Description

Technical Field

[0001] This application relates to the technical field of wind power generation, and more particularly, to a bladeless wind power generator set based on vortex-induced vibration. Background Art

[0002] Currently, conventional horizontal-axis wind turbine generator sets rely on the rotation of blades to absorb wind energy and convert wind energy into mechanical energy. The blades determine the efficiency of wind energy absorption. In particular, three-blade horizontal-axis wind power generation has high efficiency and mature technology, and is widely used.

[0003] In addition, there are also bladeless wind turbine generator sets that generate electricity using the principle of vortex-induced vibration. Since the bladeless wind turbine generator set has fewer components than the conventional horizontal-axis wind turbine generator set, the manufacturing cost and maintenance cost are relatively low, but the structure is not yet mature. Summary of the Invention

[0004] This application provides a bladeless wind power generator set based on vortex-induced vibration, which can adjust the frequency according to the wind speed, has a large wind speed adaptation range, and improves the utilization rate of wind energy.

[0005] This application provides a bladeless wind power generator set based on vortex-induced vibration, including:

[0006] A tower barrel and a first tuned mass damper, the first tuned mass damper is arranged in the tower barrel and connected to the tower barrel, and the height of the first tuned mass damper in the tower barrel is adjustable;

[0007] A generator, arranged at the bottom of the tower barrel, the generator includes a stator and a rotor that moves relative to the stator; and

[0008] A swing rod and a second tuned mass damper, the swing rod is swingably arranged in the tower barrel, one end of the swing rod is movably connected to the top of the tower barrel, the other end is connected to the rotor, the second tuned mass damper is arranged on the swing rod, and the height of the second tuned mass damper in the tower barrel is adjustable.

[0009] Optionally, the wind power generator set further includes a first lifting device arranged on the tower barrel, and the first lifting device drives the first tuned mass damper to lift along the height of the tower barrel to adjust the height of the first tuned mass damper in the tower barrel.

[0010] Optionally, the first lifting device includes a winch, the winch includes a rotatable drum and a cable, one end of the cable is connected to the drum, and the other end is connected to the first tuned mass damper.

[0011] Optionally, the first tuned mass block is provided with a hollow structure, the swing rod passes through the cavity in the hollow part of the first tuned mass block, and the cavity in the hollow part of the first tuned mass block is arranged to enable the second tuned mass block to pass through.

[0012] Optionally, the second tuned mass block is sleeved outside the swing rod and is coaxially arranged with the swing rod, the first tuned mass block and the tower barrel.

[0013] Optionally, the wind turbine generator set further includes a first locking device arranged on the tower barrel, and the first tuned mass block is locked at the adjusted height through the first locking device; and / or

[0014] The wind turbine generator set further includes a second locking device arranged on the swing rod, and the second tuned mass block is locked at the adjusted height through the second locking device.

[0015] Optionally, a buffer structure is further arranged on the inner wall of the tower barrel, and the buffer structure isolates the tower barrel from the swing rod.

[0016] Optionally, the swing rod is movably connected to the top of the tower barrel through a universal joint.

[0017] Optionally, the generator is movably installed at the bottom of the tower barrel and moves relative to the tower barrel along with the swing of the swing rod.

[0018] Optionally, the generator is rotatably installed at the bottom of the tower barrel, and the rotation axis of the generator is consistent with the height direction of the tower barrel.

[0019] Optionally, the wind turbine generator set further includes a second lifting device arranged on the swing rod, and the second lifting device drives the second tuned mass block to lift along the height of the tower barrel so as to adjust the height of the second tuned mass block in the tower barrel.

[0020] The technical solution provided by this application can at least achieve the following beneficial effects:

[0021] This application provides a bladeless wind turbine generator set based on vortex-induced vibration. Among them, the height of the first tuned mass block connected to the tower barrel is adjustable, and the height of the second tuned mass block connected to the swing rod is adjustable. In this way, the frequencies of the tower barrel and the swing rod can be adjusted according to the wind speed, so that the tower barrel and the swing rod can adapt to a certain range of wind speeds, and vortex-induced resonance can occur at the corresponding wind speeds, which can effectively capture wind energy and improve the utilization rate of wind energy. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of a bladeless wind turbine generator set shown in an exemplary embodiment of this application;

[0023] Figure 2 is Figure 1 a cross-sectional view of a bladeless wind turbine shown in

[0024] Figure 3 is Figure 2 a cross-sectional view of a partial structure of a bladeless wind turbine shown in

[0025] Figure 4 a cross-sectional view of a tower barrel;

[0026] Figure 5 a longitudinal sectional view of a first tuned mass damper;

[0027] Figure 6 a cross-sectional view of a swing rod and a second tuned mass damper shown in an exemplary embodiment of the present application;

[0028] Figure 7 a longitudinal sectional view of a second tuned mass damper;

[0029] Figure 8 a top view of a second tuned mass damper;

[0030] Figure 9 is Figure 2 the N-N view in Detailed Description of the Invention

[0031] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application.

[0032] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application pertains. The "first", "second" and similar terms used in this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one, and will be separately stated if only referring to "one". "Plural" or "several" means two or more. Unless otherwise indicated, terms such as "front", "rear", "lower" and / or "upper", "top", "bottom" are for convenience of description only and are not limited to a position or a spatial orientation. Terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

[0033] Please refer to Figure 1 , Figure 1 which shows a schematic diagram of a bladeless wind turbine generator set 100 shown in an exemplary embodiment of this application.

[0034] The bladeless wind turbine generator set 100 (hereinafter referred to as the generator set 100) provided by the embodiments of this application generates electricity based on the principle of vortex-induced vibration, captures mechanical energy through the oscillation of the structure, and then converts the vibration energy into electrical energy. The application scenario of this generator set 100 is not limited, and it can be applied to onshore wind farms or offshore wind farms.

[0035] The generator set 100 includes a foundation 10 and a tower barrel 20 disposed on the foundation 10. This application does not limit the specific structure of the tower barrel 20. For example, the tower barrel 20 can be a conical tower barrel, and the diameter of the tower barrel 20 gradually decreases from the bottom to the top. Alternatively, the tower barrel 20 can be a cylindrical tower barrel. In this embodiment, the bottom of the tower barrel 20 is a conical structure, and the middle and top are both cylindrical structures. The foundation 10 includes but is not limited to a concrete foundation. The tower barrel 20 includes but is not limited to a tower barrel made of steel structure.

[0036] Please refer to Figure 2 , Figure 2 for Figure 1 a cross-sectional view of the generator set 100 shown in

[0037] The generator set 100 further includes a swing rod 30, a first tuned mass block 40, a second tuned mass block 50, and a generator 60. Among them, the first tuned mass block 40 is arranged inside the tower barrel 20 and connected to the tower barrel 20, and the height of the first tuned mass block 40 inside the tower barrel 20 is adjustable. By adjusting the height of the first tuned mass block 40 inside the tower barrel 20, the center of gravity of the tower barrel 20 can be adjusted, and thus the natural frequency of the tower barrel 20 can be adjusted. In Figure 2 In the illustrated embodiment, when the first tuned mass block 40 is adjusted upward, the natural frequency of the tower barrel 20 decreases; when the first tuned mass block 40 is adjusted downward, the natural frequency of the tower barrel 20 increases. In this way, the natural frequency of the tower barrel 20 can be matched with the wind speed to form vortex-induced resonance.

[0038] The generator 60 is arranged inside the tower barrel 20 and located at the bottom of the tower barrel 20. The generator 60 includes a stator 61 and a rotor 62 that moves relative to the stator 61 (refer to Figure 9 ). The swing rod 30 is swingably arranged inside the tower barrel 20. The swing rod 30 can drive the rotor 62 to move relative to the stator 61, cut the magnetic field of the stator 61, and generate electricity for the generator 60. Specifically, one end of the swing rod 30 is movably connected to the top of the tower barrel 20, and the other end is connected to the rotor 62. When the wind flows over the surface of the tower barrel 20, it will cause vortex shedding, causing the tower barrel 20 to generate vortex-induced vibration. At this time, the swing rod 30 absorbs the vibration energy of the tower barrel 20, and the swing rod 30 swings back and forth accordingly, thereby driving the rotor 62 of the generator 60 to move and realizing power generation. The generator 60 can adopt a rotary generator or a linear generator.

[0039] The second tuned mass block 50 is arranged on the swing rod 30, and the height of the second tuned mass block 50 inside the tower barrel 20 is adjustable. By adjusting the height of the second tuned mass block 50, the center of gravity of the swing rod 30 can be adjusted accordingly, and thus the frequency of the swing rod 30 can be adjusted, so that the frequency of the swing rod 30 can be adjusted within a certain range and matched with the frequency of the tower barrel 20. In Figure 2 In the illustrated embodiment, when the second tuned mass block 50 is adjusted upward, the frequency of the swing rod 30 increases; when the second tuned mass block 50 is adjusted downward, the frequency of the swing rod 30 decreases.

[0040] In the actual application scenario, when the generator set 100 cuts in for power generation at a certain wind speed, it is necessary to adjust the height of the first tuned mass block 40 to change the natural frequency of the tower barrel 20, so that the natural frequency of the tower barrel 20 is the same as the vortex-induced vibration frequency of the wind, thereby forming vortex-induced resonance. Moreover, it is also necessary to adjust the height of the second tuned mass block 50 so that the swing rod 30 resonates with the tower barrel 20. In this way, the swing rod 30 can absorb more energy of the tower barrel 20 to make full use of the wind energy.

[0041] According to the above description, by adjusting the height of the first tuned mass block 40, the tower barrel 20 can achieve vortex-induced resonance with the wind, and by adjusting the height of the second tuned mass block 50, the swing rod 30 can also resonate with the tower barrel 20, thereby realizing the effective transfer of vibration energy and improving the utilization rate of wind energy. The generator set can adjust the frequency according to the wind speed and has a large wind speed adaptation range.

[0042] In an actual application scenario, the first tuned mass block 40 and the second tuned mass block 50 can be adjusted to the same height. At the same height, the tower barrel 20 and the swing rod 30 resonate, and the vibration frequency can be the same as the frequency of the vortex-induced vibration of the wind. Of course, in other actual application scenarios, depending on the different shapes and structures of the first tuned mass block 40 and the second tuned mass block 50, resonance between the tower barrel 20 and the swing rod 30 can also be achieved when the first tuned mass block 40 and the second tuned mass block 50 are not at the same height.

[0043] The present application does not limit the specific implementation manner for making the first tuned mass block 40 adjustable in the height direction of the tower barrel 20. In one embodiment, a plurality of mounting parts with different heights can be provided on the inner wall of the tower barrel 20, and the first tuned mass block 40 can be selectively mounted on one of the plurality of mounting parts, so as to realize the adjustment of the height of the first tuned mass block 40.

[0044] Please refer to Figure 3 , Figure 3 for Figure 2 a partial structural cross-sectional view of the generator set 100 shown in

[0045] In Figure 3 the embodiment shown, the generator set 100 further includes a first lifting device 70 provided at the top of the tower barrel 20. The first lifting device 70 drives the first tuned mass block 40 to move up and down along the height of the tower barrel 20, so as to adjust the height of the first tuned mass block 40 in the tower barrel 20. The first lifting device 70 can realize the automatic lifting of the first tuned mass block 40 in the tower barrel 20, and the operation is simple and convenient.

[0046] In one embodiment, the first lifting device 70 can include a winch. The winch includes a rotatable drum 71 and a cable 72. One end of the cable 72 is connected to the drum 71, and the other end is connected to the first tuned mass block 40. The winch occupies a small space, has a simple structure and is easy to operate. Multiple winches can be provided, so that the first tuned mass block 40 can be connected to multiple cables 72 to ensure the reliability of the connection. In this embodiment, two winches are provided. In a specific embodiment, an equipment cabin 21 can be configured at the top of the tower barrel 20, and the winches are arranged in the equipment cabin 21.

[0047] Please refer to Figure 4 and Figure 5 , Figure 4 which shows a schematic cross-sectional view of the tower barrel 20. Figure 5 which shows a schematic longitudinal-sectional view of the first tuned mass damper 40.

[0048] The first tuned mass damper 40 will sway during the lifting process. To prevent the first tuned mass damper 40 from colliding with the tower barrel 20 due to swaying, the first tuned mass damper 40 can be limited. In one embodiment, one of the tower barrel 20 and the first tuned mass damper 40 is provided with a boss 22, and the other is provided with a groove 41. The boss 22 and the groove 41 extend along the height direction of the tower barrel 20 and are slidably engaged during the lifting process of the first tuned mass damper 40. In this way, the boss 22 and the groove 41 can play a guiding and limiting role during the lifting process of the first tuned mass damper 40, reducing the damage caused by the swaying of the first tuned mass damper 40 to the tower barrel 20.

[0049] In this embodiment, a boss 22 is provided inside the tower barrel 20, and a groove 41 is provided outside the first tuned mass damper 40. In some other embodiments, a groove 41 can be provided on the inner wall of the tower barrel 20, and a boss 22 is provided on the outer wall of the first tuned mass damper 40. In addition, multiple groups of the boss 22 and the groove 41 can be provided, for example, two groups or more than two groups. In this embodiment, two groups of the boss 22 and the groove 41 are provided, and the two groups are spaced 180°, and the boss 22 and the groove 41 in each group are arranged in one-to-one correspondence.

[0050] In one embodiment, the generator set 100 further includes a first locking device (not shown) provided on the tower barrel 20, and the first tuned mass damper 40 is locked at the adjusted height through the first locking device. The first locking device can ensure that the height of the first tuned mass damper 40 remains unchanged. The first locking device can include a plurality of retractable jaws, and the plurality of retractable jaws expand and contract along the radial direction of the tower barrel 20. In the extended state, the plurality of jaws jointly clamp the first tuned mass damper 40, so that the first tuned mass damper 40 remains relatively fixed to the tower barrel 20 at the adjusted height. In the retracted state, the plurality of jaws are disengaged from the first tuned mass damper 40. Of course, the first locking device is not limited to the above-described embodiments. In some other embodiments, the first locking device can further include an upper baffle and a lower baffle provided along the height direction of the tower barrel 20. The upper baffle abuts against the upper end of the first tuned mass damper 40, and the lower baffle abuts against the lower end of the first tuned mass damper 40, so as to clamp and fix the first tuned mass damper 40 at the adjusted height. The upper baffle and the lower baffle can be set as radially retractable baffles of the tower barrel 20 to avoid interference when adjusting the height of the first tuned mass damper 40.

[0051] Please refer to again Figure 2, in one embodiment, the first tuned mass block 40 is provided with a hollow structure, the swing rod 30 passes through the cavity 42 in the hollow part of the first tuned mass block 40, and the cavity 42 in the hollow part of the first tuned mass block 40 is arranged to enable the second tuned mass block 50 to pass through. In this way, an avoidance space is formed at the cavity 42, which can avoid interference with the first tuned mass block 40 when adjusting the height of the second tuned mass block 50.

[0052] In one embodiment, the second tuned mass block 50 is sleeved outside the swing rod 30, and the second tuned mass block 50 is coaxially arranged with the swing rod 30, the first tuned mass block 40 and the tower barrel 20. Such an arrangement can ensure that the overall center of gravity after the assembly of the above four is located on the center line in the height direction of the tower barrel 20, and will not shift in the lateral direction perpendicular to the height direction of the tower barrel 20. Therefore, the fatigue stress of the tower barrel 20 can be reduced and the service life of the tower barrel 20 can be extended.

[0053] Please refer to Figure 6 , Figure 6 For Figure 2 the cross-sectional view of the swing rod 30 and the second tuned mass block 50 shown in

[0054] The present application does not limit the specific implementation manner for realizing the adjustability of the second tuned mass block 50 in the height direction of the tower barrel 20. In one embodiment, the generator set 100 further includes a second lifting device 80 arranged on the swing rod 30, and the second lifting device 80 drives the second tuned mass block 50 to lift along the height of the tower barrel 20, so that the height of the second tuned mass block 50 in the tower barrel 20 can be adjusted. The second lifting device 80 can adopt the same implementation manner as the first lifting device 70. For example, the second lifting device 80 can also include a winch, which will not be elaborated here.

[0055] The top end of the swing rod 30 is movably connected to the top of the tower barrel 20, and the connection manner can be a hinge. In this embodiment, the swing rod 30 is connected to the top of the tower barrel 20 through a universal joint, so that the swing rod 30 can swing 360° relative to the tower barrel 20, enabling the swing rod 30 to adapt to different wind directions.

[0056] Please refer to Figure 7 and Figure 8 , Figure 7 as shown in the schematic diagram of the longitudinal section of the second tuned mass block 50, Figure 8 and the top view of the second tuned mass block 50.

[0057] In order to prevent the second tuned mass block 50 from rotating relative to the swing rod 30, the second tuned mass block 50 can be limited in the circumferential direction of the swing rod 30. In Figure 7In the illustrated embodiment, the through hole 51 through which the second tuning mass 50 is penetrated by the swing rod 30 may be set as a non-circular hole, and the shape of the swing rod 30 is the same as that of the through hole 51, so as to limit the rotation of the second tuning mass 50 relative to the swing rod 30, and the structure is simple and easy to implement. In an alternative embodiment, the through hole 51 may be set as a polygonal hole, an elliptical hole, etc., but not limited thereto.

[0058] In one embodiment, the generator set 100 further includes a second locking device (not shown) provided on the swing rod 30, and the second tuning mass 50 is locked at the adjusted height by the second locking device. The second locking device may refer to the second locking device for setting, which will not be elaborated herein.

[0059] Please refer again to Figure 2 , in one embodiment, a buffer structure 23 is further provided on the inner wall of the tower barrel 20, and the buffer structure 23 isolates the tower barrel 20 from the swing rod 30. That is to say, the buffer structure 23 can prevent the swing rod 30 from colliding with the tower barrel 20 when swinging, and avoid damaging the tower barrel 20. The buffer structure 23 may be a flexible rubber pad attached to the inner wall of the tower barrel 20, or a spring of a deformable member. In Figure 2 the illustrated embodiment, the buffer structure 23 is provided at the connection position between the cylindrical section and the conical section of the tower barrel 20.

[0060] Please refer to Figure 9 , Figure 9 The cross-sectional view of the generator 60 is shown.

[0061] In one embodiment, the generator 60 is movably installed at the bottom of the tower barrel 20 and moves relative to the tower barrel 20 along with the swing of the swing rod 30. This can prevent the generator 60 from hindering the swing of the swing rod 30.

[0062] In a specific embodiment, the generator 60 is rotatably installed at the bottom of the tower barrel 20, and the rotation axis of the generator 60 is consistent with the height direction of the tower barrel 20. Specifically, a fixing portion 11 and a slewing support portion 12 are provided on the foundation 10, the slewing support portion 12 is rotatably connected to the fixing portion 11, the generator 60 is installed on the slewing support portion 12, and the rotation axis of the slewing support portion 12 is consistent with the height direction of the tower barrel 20. When the wind direction changes, the movement of the swing rod 30 drives the guide member 63 together with the stator 61 to rotate around the rotating shaft of the slewing support portion 12 until the direction is the same as the swinging direction. The swing rod 30 may be connected to the rotor 62 through a collar 64. With such a setting, after the wind direction changes, the swinging direction of the swing rod 30 changes, driving the direction of the guide member 63 of the stator to change, and the generator 60 installed on the slewing support portion 12 can rotate according to the direction of the guide member 63 to adapt to different wind directions and swinging directions. The rotating shaft of the slewing support portion 12 may be collinear with the center line of the tower barrel 20.

[0063] It should be noted that when shutdown is required, by adjusting the height of the first tuning mass block 40 and the second tuning mass block 50 so that the tower 20 and the swing rod 30 are away from resonance, the swing rod 30 will gradually stop working and the generator set 100 will enter a shutdown state.

[0064] The generator set 100 provided in the present application can be equipped with a control system, which can automatically switch in or out of power generation or shut down through the control system. For example, at a certain wind speed (winds of different wind speeds flowing through the surface of the tower 20 will produce vortex shedding of different frequencies), the control system controls the first lifting device 70 to work according to the wind speed to adjust the height of the first tuning mass block 40, the first lifting device 70 drives the first tuning mass block 40 to move up, the frequency of the tower 20 becomes smaller, the first lifting device 70 drives the first tuning mass block 40 to move down, the frequency of the tower 20 becomes larger, so that the tower 20 resonates with the wind vortex. Then the control system controls the second lifting device 80 to work, adjust the height of the second tuning mass block 50, the second lifting device 80 drives the second tuning mass block 50 to move up, the frequency of the swing rod 30 becomes larger, the second lifting device 80 drives the second tuning mass block 50 to move down, the frequency of the swing rod 30 becomes smaller, so that the tower 20 resonates with the swing rod 30, and at this time the swing rod 30 stably reciprocates, driving the generator 60 to continuously generate electricity. When shutting down, the height of the second tuning mass block 50 is adjusted to keep the frequency of the pendulum rod 30 away from the vortex-induced vibration frequency until the system stops moving.

[0065] The generator set 100 provided in the embodiment of the present application has no limit on the height of the tower 20 and can be adapted to occasions that require large megawatts of power generation.

[0066] The generator set 100 provided in the embodiment of the present application adopts a linear generator 60 installed at the bottom of the tower 20. The linear generator 60 performs low-speed rotational motion, and the rocker arm 30 drives the mover 62 to move back and forth. The linear speed is high and the power generation efficiency is higher.

[0067] The structure, material and manufacturing process of the tower 20 of the generator set 100 provided in the embodiment of the present application do not need to be specially customized, and the industry is mature and fully meets the manufacturing needs.

[0068] The generator set 100 provided in the embodiment of the present application has a reduced number of parts and components, and is free of blades, drive chains, etc., thereby greatly reducing equipment costs and power generation costs.

[0069] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A bladeless wind power generation unit based on vortex-induced vibration, characterized in that, Comprising: A tower barrel and a first tuned mass damper, the first tuned mass damper is arranged inside the tower barrel and connected to the tower barrel, and the height of the first tuned mass damper inside the tower barrel is adjustable; A generator, arranged at the bottom of the tower barrel, the generator includes a stator and a rotor that moves relative to the stator; And A swing rod and a second tuned mass damper, the swing rod is swingably arranged inside the tower barrel, one end of the swing rod is movably connected to the top of the tower barrel, the other end is connected to the rotor, the second tuned mass damper is arranged on the swing rod, and the height of the second tuned mass damper inside the tower barrel is adjustable; The first tuned mass damper is arranged in a hollow structure, the swing rod passes through the cavity in the hollow part of the first tuned mass damper, and the cavity in the hollow part of the first tuned mass damper is arranged to enable the second tuned mass damper to pass through.

2. The bladeless wind power generating set according to claim 1, characterized in that The wind power generating set further includes a first lifting device arranged on the tower barrel, the first lifting device drives the first tuned mass damper to lift along the height of the tower barrel to adjust the height of the first tuned mass damper inside the tower barrel.

3. The bladeless wind power generating set according to claim 2, wherein The first lifting device includes a winch, the winch includes a rotatable drum and a cable, one end of the cable is connected to the drum, and the other end is connected to the first tuned mass damper.

4. The bladeless wind turbine according to claim 1, wherein The second tuned mass damper is sleeved outside the swing rod and is coaxially arranged with the swing rod, the first tuned mass damper and the tower barrel.

5. The bladeless wind power generating set according to any one of claims 1 to 4, characterized in that, The wind power generating set further includes a first locking device arranged on the tower barrel, the first tuned mass damper is locked at the adjusted height through the first locking device; and / or The wind power generating set further includes a second locking device arranged on the swing rod, the second tuned mass damper is locked at the adjusted height through the second locking device.

6. The bladeless wind power generating set according to claim 1, wherein A buffer structure is further arranged on the inner wall of the tower barrel, and the buffer structure isolates the tower barrel from the swing rod; and / or The swing rod is movably connected to the top of the tower barrel through a universal joint.

7. The bladeless wind power generating set according to claim 1, characterized in that, The generator is movably installed at the bottom of the tower barrel and moves relative to the tower barrel along with the swing of the swing rod.

8. The bladeless wind power generating set according to claim 7, characterized in that, The generator is rotatably installed at the bottom of the tower barrel, and the rotation axis of the generator is consistent with the height direction of the tower barrel.

9. The bladeless wind power generating set according to any one of claims 1 to 4, characterized in that, The wind power generating set further includes a second lifting device arranged on the swing rod, the second lifting device drives the second tuned mass damper to lift along the height of the tower barrel to adjust the height of the second tuned mass damper inside the tower barrel.

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