Damping device and wind turbine

Abstract

The present disclosure provides a damping device and a wind turbine generator set, the damping device including a mass block bracket, a damping cylinder bracket, a mass block and a damping cylinder, the mass block bracket is used to be fixed in the inner cavity of the tower; the damping cylinder bracket is fixed on the inner wall of the tower and is located below the mass block bracket; the mass block is swingably connected to the mass block bracket; the upper end of the damping cylinder is connected to the mass block, and the damping cylinder is hinged to the damping cylinder bracket through a mounting seat; at least one first damper through hole is provided on the damping cylinder bracket, and the damping cylinder extends from the top of the damping cylinder bracket to the first damper through hole. By providing at least one first damper through hole on the damping cylinder bracket, and the damping cylinder can extend from the top of the damping cylinder bracket to the first damper through hole, the damping cylinder is limited in the first damper through hole, thereby avoiding collision or interference between the damping cylinder and other components outside the first damper through hole, thereby improving the service life of the damping device.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of wind power generation, and in particular relates to a damping device and a wind power generator set having the damping device. Background Art

[0002] The operating conditions of wind turbines are relatively complex. For example, during wind turbine startup, power generation, or emergency shutdown, the load on the tower changes greatly. Therefore, a damping device needs to be installed in the tower to buffer the large changes in the above loads, thereby preventing the tower from vibrating under the action of the above loads.

[0003] Existing damping devices include dampers. Due to the complex operating conditions of wind turbines, the movement trajectory of the damper is relatively complex. In addition, since there are many components installed in the tower, the damper may collide with other components outside the damper during its irregular movement, thereby affecting the normal operation of the damping device and causing safety hazards to the wind turbine. Summary of the Invention

[0004] The main purpose of the present disclosure is to provide a damping device and a wind turbine generator set having the damping device, so as to limit the damper and prevent the damper from colliding with other components.

[0005] In view of the above-mentioned invention objectives, the present disclosure provides the following technical solutions:

[0006] One aspect of the present disclosure provides a damping device, which includes a mass block bracket, a damping cylinder bracket, a mass block and a damping cylinder, wherein the mass block bracket is used to be fixed in the inner cavity of the tower; the damping cylinder bracket is fixed on the inner wall of the tower and is located below the mass block bracket; the mass block is swingably connected to the mass block bracket; the upper end of the damping cylinder is connected to the mass block, and the damping cylinder is hinged to the damping cylinder bracket through a mounting seat; at least one first damper through hole is provided on the damping cylinder bracket, and the damping cylinder extends from the top of the damping cylinder bracket to the first damper through hole.

[0007] In this way, at least one first damper through hole is set on the damping cylinder bracket, and the damping cylinder can extend from the top of the damping cylinder bracket to the first damper through hole, so that the damping cylinder is limited in the first damper through hole, thereby avoiding collision or interference between the damping cylinder and other components outside the first damper through hole, thereby improving the service life of the damping device.

[0008] To increase the contact area between the damping cylinder bracket and the tower, an exemplary embodiment of the present disclosure provides for at least a portion of the edge of the damping cylinder bracket to form a continuous arc that matches the tower's inner wall, allowing for abutment against the tower. This continuous connection between the damping cylinder bracket and the tower's inner wall increases the contact area compared to a situation where the damping cylinder bracket and the tower's inner wall make contact at intervals, thereby avoiding localized stress concentration and improving the damping cylinder bracket's connection strength.

[0009] Specifically, the damping cylinder bracket is provided with at least two mass-block mounting holes, at least two of which are located radially inward of the first damper through-hole, and the mass-block mounting holes and the first damper through-hole are alternately arranged along the circumference of the damping cylinder bracket. This arrangement reduces the difficulty of assembling the mass-block and the damping cylinder bracket. To avoid the impact of the openings in the damping cylinder bracket on its structural strength, the mass-block mounting holes can be located annularly inward of the circumference of the first damper through-hole. Furthermore, the mass-block mounting holes and the first damper through-hole are spaced apart along the circumference of the damping cylinder bracket.

[0010] To reduce the weight of the damping cylinder bracket while maintaining a certain structural strength, the damping cylinder bracket can further include an upper mounting plate and a lower mounting plate that are parallel to each other and spaced apart, with reinforcing ribs connected between the upper and lower mounting plates. This arrangement allows the upper and lower mounting plates to be connected as a single unit via the reinforcing ribs, thereby maintaining a certain structural strength of the damping cylinder bracket. Furthermore, due to the gaps between the upper and lower mounting plates and between adjacent reinforcing ribs, the damping cylinder bracket is significantly lighter than a damping cylinder bracket formed from a single solid plate, thereby alleviating the load on the tower to a certain extent.

[0011] More specifically, in another exemplary embodiment of the present disclosure, the damping cylinder bracket is formed into a box-like structure and further includes an edge reinforcement plate connected between the edges of the upper mounting plate and the lower mounting plate. This arrangement further enhances the structural strength of the damping cylinder bracket and improves its aesthetics.

[0012] To prevent the lower mounting plate from interfering with the operation of the damping cylinder, a second damper through-hole can be provided on the lower mounting plate. Specifically, the second damper through-hole is provided on the lower mounting plate at a position opposite the upper mounting plate, and the size of the second damper through-hole is larger than the size of the first damper through-hole. Because the mass block is located above the damping cylinder bracket, the swing trajectory of the lower end of the damping cylinder driven by the mass block is no smaller than the swing trajectory of its upper end. Therefore, the size of the second damper through-hole is set to be larger than the size of the first damper through-hole.

[0013] Furthermore, the damping device may further include a spring assembly, the upper end of which is connected to the mass block, and the lower end of which is swingably connected to the damping cylinder bracket via a ball hinge. Connecting the spring assembly to the damping cylinder bracket via the ball hinge prevents the spring assembly from getting stuck during swinging, thereby improving the reliability of the damping device.

[0014] According to another exemplary embodiment of the present disclosure, there are multiple damping cylinders, each of which is arranged in its corresponding first damper through-hole, multiple first damper through-holes are circumferentially arranged on the same circumference of the damping cylinder bracket, and the lower end of the spring group is arranged at the center of the circumference.

[0015] Specifically, the damping device further includes a safety guardrail disposed around the edge of the damping cylinder bracket. This arrangement improves the safety of the damping device. During maintenance of the damping device, the damping cylinder bracket can serve as an operating platform, allowing operators to walk on it. By providing the safety guardrail around the edge of the damping cylinder bracket, safety hazards are eliminated.

[0016] Optionally, the edge of the damping cylinder bracket is smoothly transitioned. This arrangement can make the damping cylinder bracket as a whole bear force evenly, and make the joint between the damping cylinder bracket and the tower bear force evenly, thereby increasing the service life of the damping device.

[0017] In another aspect of the present disclosure, a wind turbine generator set is provided. The wind turbine generator set may include a tower and the damping device as described above disposed in an inner cavity of the tower.

[0018] The damping device and wind turbine generator set provided by the present invention have at least the following beneficial effects: by arranging at least one first damper through hole on the damping cylinder bracket, and the damping cylinder can extend from the top of the damping cylinder bracket to the first damper through hole, the damping cylinder is limited in the first damper through hole, thereby avoiding collision or interference between the damping cylinder and other components outside the first damper through hole, thereby improving the service life of the damping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 A structural diagram of a wind turbine generator set provided by an exemplary embodiment of the present disclosure.

[0021] Figure 2 for Figure 1 A partial enlarged view of the structure in circle I.

[0022] Figure 3 for Figure 1 The first side view of the damping cylinder bracket and tower tube in the state of being combined.

[0023] Figure 4 for Figure 3 A second side view of the damping cylinder bracket and tower tube in combination.

[0024] Figure 5 for Figure 3 Bottom view of the damping cylinder bracket and tower tube combined state.

[0025] Figure 6 for Figure 3 Longitudinal cross-sectional view of the damping cylinder bracket and tower tube in combination.

[0026] Description of reference numerals:

[0027] 10. Mass block; 20. Damping cylinder;

[0028] 30. Mounting seat; 40. Spring assembly;

[0029] 50. Damping cylinder bracket; 51. Upper mounting plate;

[0030] 52. Lower mounting plate; 53. Reinforcement ribs;

[0031] 54. Edge reinforcement plate; 55. First damper through hole;

[0032] 56. Second damper through hole; 57. Mass block mounting hole;

[0033] 58. Through hole; 60. Ball hinge;

[0034] 70. Mass block bracket; 100. Tower. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the embodiments of the present disclosure are limited to the embodiments described herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0036] Figure 1 A structural diagram of a wind turbine generator set provided by an exemplary embodiment of the present disclosure. Figure 2 for Figure 1 A partial enlarged view of the structure in circle I. Figure 1 and Figure 2According to one aspect of the present disclosure, a damping device is provided, which may include a mass block bracket 70, a damping cylinder bracket 50, a mass block 10 and a damping cylinder 20. The mass block bracket 70 can be used to be fixed in the inner cavity of the tower 100, the damping cylinder bracket 50 can be fixed on the inner wall of the tower 100 and is located below the mass block bracket 70, the mass block 10 can be swingably connected to the mass block bracket 70, the upper end of the damping cylinder 20 can be connected to the mass block 10, and the damping cylinder 20 can be hinged to the damping cylinder bracket 50 through a mounting seat 30, at least one first damper through hole 55 can be provided on the damping cylinder bracket 50, and the damping cylinder 20 can extend from the top of the damping cylinder bracket 50 to the first damper through hole 55.

[0037] In this way, by setting at least one first damper through hole 55 on the damping cylinder bracket 50, and the damping cylinder 20 can extend from the top of the damping cylinder bracket 50 to the first damper through hole 55, the damping cylinder 20 can be limited in the first damper through hole 55, thereby avoiding the damping cylinder 20 from colliding or interfering with other components outside the first damper through hole 55, thereby improving the service life of the damping device.

[0038] Specifically, the mass support 70 can be fixed to the tower, for example, but not limited to, the inner wall of the tower 100, so that the mass support 70 can be arranged in the inner cavity of the tower 100. The damping cylinder support 50 can be fixed to the inner wall of the tower 100, and the damping cylinder support 50 is spaced below the mass support 70.

[0039] As the load of the tower 100 changes, the tower 100 vibrates and transmits the vibration to the mass block bracket 700. The mass block bracket 700 vibrates along with the tower 100, and the mass block 10 will swing accordingly, so that the mechanical vibration of the tower 100 is converted into the swing of the mass block 10.

[0040] A buffer structure may be connected to the bottom of the mass block 10, which may be a damping cylinder 20. During the swinging of the mass block 10, the damping cylinder 20 slides and swings along the mounting seat 30 to swing with the mass block 10. During the swinging process, the damping cylinder 20 may suppress the swinging of the mass block 10 and convert the mechanical energy of the swinging of the mass block 10 into frictional heat energy of the damping cylinder 20, thereby achieving the effect of the damping cylinder 20 absorbing vibrations.

[0041] Alternatively, the buffer structure can be an elastic member to convert the mechanical energy of the mass 10 into elastic potential energy during the swinging motion of the mass 10. Specifically, the damping device can further include a spring assembly 40, the upper end of which can be connected to the mass 10, and the lower end of which can be swingably connected to the damping cylinder bracket 50 via a ball hinge 60. This arrangement, connecting the spring assembly 40 to the damping cylinder bracket 50 via the ball hinge 60, prevents the spring assembly 40 from getting stuck during the swinging motion, thereby improving the reliability of the damping device.

[0042] In this embodiment, the spring assembly 40 may include one spring, or may include two or more springs.

[0043] In order to improve the damping effect of the damping device, the present invention discloses another exemplary embodiment, in which there can be multiple damping cylinders 20, each damping cylinder 20 is arranged in its corresponding first damper through-hole 55, and multiple first damper through-holes 55 can be circumferentially arranged on the same circumference of the damping cylinder bracket 50, and the lower end of the spring group 40 can be arranged at the center of the circumference, that is, the ball hinge 60 can be arranged at the center of the circle. As an example, multiple first damper through-holes 55 can be arranged at equal intervals. With such an arrangement, on the one hand, the damping effect of the damping device is ensured by the cooperation of the spring group 40 and the damping cylinder 20. On the other hand, by uniformly arranging multiple first damper through-holes 55 and the ball hinge 60 being arranged at the center of the circumference where the first damper through-hole 55 is located, the damping cylinder bracket 50 and the damping cylinder 20 can be subjected to uniform force, thereby improving the service life of the damping device.

[0044] In this embodiment, there may be three first damper through holes 55 .

[0045] In order to facilitate the connection of the damping cylinder bracket 50 with other components, refer to Figures 3 to 6 Specifically, the damping cylinder bracket 50 may be provided with at least two mass-block mounting holes 57. The at least two mass-block mounting holes 57 may be located radially inward of the circumference of the first damper through-hole 55. The mass-block mounting holes 57 may be alternately arranged with the first damper through-hole 55 along the circumference of the damping cylinder bracket 50. This arrangement can reduce the difficulty of assembling the mass 10 and the damping cylinder bracket 50. To avoid the influence of the openings on the damping cylinder bracket 50 on its structural strength, the mass-block mounting holes 57 may be located annularly inward of the circumference of the first damper through-hole 55. Furthermore, the mass-block mounting holes 57 and the first damper through-hole 55 are spaced apart along the circumference of the damping cylinder bracket 50, thereby maintaining the structural strength of the damping cylinder bracket 50.

[0046] To reduce the weight of the damping cylinder bracket 50 while maintaining a certain structural strength, the damping cylinder bracket 50 may further include an upper mounting plate 51 and a lower mounting plate 52 that are parallel to each other and spaced apart, with reinforcing ribs 53 connected between the upper mounting plate 51 and the lower mounting plate 52. This arrangement allows the upper mounting plate 51 and the lower mounting plate 52 to be integrally connected via the reinforcing ribs 53, thereby maintaining a certain structural strength of the damping cylinder bracket 50. Furthermore, due to the gaps provided between the upper mounting plate 51 and the lower mounting plate 52 and between adjacent reinforcing ribs 53, the weight of the damping cylinder bracket 50 is significantly reduced compared to a damping cylinder bracket 50 formed of a single solid plate, thereby alleviating the load on the tower 100 to a certain extent.

[0047] More specifically, in another exemplary embodiment of the present disclosure, the damping cylinder bracket 50 can be formed into a box-type structure and can further include an edge reinforcement plate 54. The edge reinforcement plate 54 can be connected between the edge of the upper mounting plate 51 and the edge of the lower mounting plate 52. This arrangement can further enhance the structural strength of the damping cylinder bracket and make the damping cylinder bracket more aesthetically pleasing.

[0048] like Figure 3 As shown, bolt holes are provided on the annular inner side of the first damper through hole 55 of the upper mounting plate 51, which can be used to install the mounting seat 30. For example, but not limited to, four bolt holes are provided on the inner side of each first damper through hole 55. Bolt holes for installing the ball hinge 60 can be provided on the annular inner side of the mass block mounting hole 57. For example, but not limited to, six bolt holes are evenly arranged on the inner side of the mass block mounting hole 57.

[0049] In order to prevent the lower mounting plate 52 from interfering with the operation of the damping cylinder 20, a second damper through-hole 56 can be provided on the lower mounting plate 52. Specifically, a second damper through-hole 56 can be provided at a position of the lower mounting plate 52 opposite to the upper mounting plate 51, and the size of the second damper through-hole 56 can be larger than the size of the first damper through-hole 55. The shape of the second damper through-hole 56 can be the same as the shape of the first damper through-hole 55, but is not limited thereto. Since the mass block 10 is located above the damping cylinder bracket 50, the damping cylinder 20 can be in an inclined state under the driving action of the mass block 10, so the swing trajectory of the lower end of the damping cylinder 20 is not less than the swing trajectory of its upper end. Therefore, the size of the second damper through-hole 56 is set to be larger than the size of the first damper through-hole 55, as shown in FIG. Figure 5 shown.

[0050] In order to further facilitate the assembly of the damping cylinder bracket 50 with other components, a through hole 58 may be provided on the lower mounting plate 52 below the location of the ball hinge 60 .

[0051] To increase the contact area between the damping cylinder bracket 50 and the tower 100 and avoid stress concentration on the damping cylinder bracket 50, an exemplary embodiment of the present disclosure provides that at least a portion of the edge of the damping cylinder bracket 50 may form a continuous arc that matches the inner wall of the tower 100, thereby abutting against the tower 100. Because the damping cylinder bracket 50 is continuously connected to the inner wall of the tower 100, the contact area between the two is increased compared to a situation where the damping cylinder bracket 50 and the inner wall of the tower 100 are in intermittent point contact, thereby avoiding localized stress concentration and improving the connection strength of the damping cylinder bracket 50. In this embodiment, the left edge of the damping cylinder bracket 50 is connected to the inner wall of the tower 100, while the right edge of the damping cylinder bracket 50 is spaced apart from the inner wall of the tower 100. Furthermore, the damping cylinder bracket 50 may be circular and have the same inner diameter as the tower 100, so that the circumferential edge of the damping cylinder bracket 50 abuts the inner wall of the tower 100. In this embodiment, the damping cylinder bracket 50 can be welded to the tower 100 .

[0052] Furthermore, the edges of the damping cylinder bracket 50 are smoothly transitioned. For example, but not limited to, the circumferential edge of the junction between the damping cylinder bracket 50 and the tower 100 is smoothly transitioned with a large radius. This arrangement allows the damping cylinder bracket 50 to be uniformly stressed as a whole, and the junction between the damping cylinder bracket 50 and the tower 100 to be uniformly stressed, thereby increasing the service life of the damping device. In this embodiment, the edges of the damping cylinder bracket 50 at the junction with the inner wall of the tower 100 on both sides of the circumference of the tower 100 are provided with chamfered corners, and the center of the chamfered corners is set on the side of the damping cylinder bracket 50 away from the first damper through-hole, so that the circumferential edge of the damping cylinder bracket 50 is roughly S-shaped.

[0053] Specifically, the damping device may further include a safety guardrail (not shown), which may be provided around the edge of the damping cylinder bracket 50. This arrangement can improve the safety of the damping device. During the inspection and maintenance of the damping device, the damping cylinder bracket 50 can serve as an operating platform, on which operators can walk. By providing the safety guardrail around the edge of the damping cylinder bracket 50, potential safety hazards are eliminated.

[0054] In another aspect of the present disclosure, a wind turbine generator set is provided. The wind turbine generator set may include a tower 100 and the above damping device disposed in an inner cavity of the tower 100 .

[0055] The present invention provides at least one first damper through hole 55 on the damping cylinder bracket 50, and the damping cylinder 20 can extend from the top of the damping cylinder bracket 50 to the first damper through hole 55, so that the damping cylinder 20 is limited in the first damper through hole 55, thereby avoiding collision or interference between the damping cylinder 20 and other components outside the first damper through hole 55, thereby eliminating safety hazards.

[0056] In addition, by continuously connecting the edge of the damping cylinder bracket 50 to the inner wall of the tower 100, the swing of the damping cylinder 20 and the tension of the spring group 40 are evenly transmitted to the damping cylinder bracket 50, and then to the tower 100, avoiding local stress concentration on the damping cylinder bracket 50, thereby improving the service life of the damping cylinder bracket 50.

[0057] Furthermore, the damping cylinder bracket 50 is provided with mass mounting holes 57, which facilitate the installation of the spring assembly 40, ball hinge 60, and damping cylinder 20 thereon, thereby improving the assembly efficiency of the damping device. Multiple mass mounting holes 57 are located inboard of the circumference of the first damper through-hole 55, and multiple mass mounting holes 57 are located on another circumference. The mass mounting holes 57 and the first damper through-hole 55 can be arranged alternately along the circumference of the damping cylinder bracket, thereby ensuring the structural strength of the damping device to a certain extent.

[0058] The damping device provided by the present disclosure can be pre-assembled on the ground and then transported to a high altitude for welding with the tower 100, thereby improving the assembly efficiency of the damping device and reducing the installation cost.

[0059] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this disclosure, unless otherwise specified, "plurality" means two or more.

[0061] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections via an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0062] The features, structures or characteristics described in the present disclosure may be combined in any suitable manner in one or more embodiments. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. A damping device, characterized in that: The damping device comprises: A mass support (70) is used to be fixed in the inner cavity of the tower (100); A damping cylinder bracket (50) is fixed on the inner wall of the tower (100) and is located below the mass block bracket (70); A mass block (10) is swingably connected to the mass block support (70), A damping cylinder (20), the upper end of the damping cylinder (20) being connected to the mass block (10), and the damping cylinder (20) being hinged to the damping cylinder bracket via a mounting seat (30); At least two first damper through holes (55) are provided on the damping cylinder bracket (50), and the at least two first damper through holes (55) are circumferentially arranged on the same circumference of the damping cylinder bracket (50), and the first damper through hole (55) includes a long waist hole extending along the circumference of the circumference, and the damping cylinder (20) extends from above the damping cylinder bracket (50) into the first damper through hole (55); At least two mass block mounting holes (57) are provided on the damping cylinder bracket (50), at least two of the mass block mounting holes (57) are located radially inward of the first damper through hole (55), and the mass block mounting holes (57) and the first damper through hole (55) are alternately arranged along the circumference of the damping cylinder bracket (50). The mounting seat (30) is arranged in an annular area between the radial inner side of the first damper through hole (55) and the radial outer side of the mass block mounting hole (57).

2. The damping device according to claim 1, characterized in that At least part of the edge of the damping cylinder bracket (50) is in the form of a continuous arc that matches the inner wall of the tower, and is used for abutting against the tower (100).

3. The damping device according to any one of claims 1 to 2, characterized in that: The damping cylinder bracket (50) comprises an upper mounting plate (51) and a lower mounting plate (52) which are parallel to each other and spaced apart, and a reinforcing rib (53) is connected between the upper mounting plate (51) and the lower mounting plate (52).

4. The damping device according to claim 3, characterized in that The damping cylinder bracket (50) is formed into a box-type structure. The damping cylinder bracket (50) further includes an edge reinforcement plate (54). The edge reinforcement plate (54) is connected between the edge of the upper mounting plate (51) and the edge of the lower mounting plate (52).

5. The damping device according to claim 3, wherein: A second damper through hole (56) is provided at a position where the lower mounting plate (52) is opposite to the upper mounting plate (51), and the size of the second damper through hole (56) is larger than the size of the first damper through hole (55).

6. The damping device according to any one of claims 1 to 2, characterized in that: The damping device further comprises a spring group (40), the upper end of the spring group (40) being connected to the mass block (10), and the lower end of the spring group (40) being swingably connected to the damping cylinder bracket via a ball hinge (60).

7. The damping device according to claim 6, characterized in that There are a plurality of damping cylinders (20), each of which is disposed in its corresponding first damper through hole (55), and the lower end of the spring group (40) is arranged at the center of the circle.

8. The damping device according to any one of claims 1 to 2, characterized in that: The damping device further comprises a safety guardrail, which is arranged around the edge of the damping cylinder bracket (50).

9. The damping device according to any one of claims 1 to 2, characterized in that: The edge of the damping cylinder bracket (50) is smoothly transitioned.

10. A wind turbine generator set, characterized in that: The wind turbine generator set comprises a tower (100) and a damping device according to any one of claims 1 to 9, which is arranged in an inner cavity of the tower (100).

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