Cable tower and wind turbine generator set

Abstract

The present invention relates to a guyed tower and a wind turbine generator set, wherein the guyed tower comprises: a tower body; a plurality of arms, each of which is spaced apart in the circumferential direction of the tower body, one end of each arm being connected to the outer wall of the tower body, and the other end of each arm extending radially away from the tower body; a connecting seat, wherein each arm is provided with a connecting seat at one end radially away from the tower body; and a first cable assembly, wherein the first cable assembly comprises a plurality of first cables spaced apart in the circumferential direction, one end of each first cable being connected to one of the connecting seats and the other end extending in a direction away from the connecting seat. The guyed tower and wind turbine generator set provided by the embodiments of the present invention can meet the bending resistance requirements of the wind turbine generator set and are low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power, and in particular to a guyed tower and a wind turbine generator set. Background Art

[0002] As wind turbines become larger and larger, the capacity of individual units continues to expand, and tower heights are increasing increasingly significantly, currently exceeding 100 meters. The tower provides the necessary height for the impeller, supporting the impeller and main engine at a reasonable height. In addition to bearing the static loads acting on the top components, it also withstands the dynamic loads (thrust, bending moment, and torque) exerted on the tower by the rotor and wind, while also absorbing vibrations from the unit. Therefore, the tower must possess sufficient strength and rigidity to prevent the entire unit from toppling during typhoons or storms. Its design directly impacts the performance and reliability of the wind turbine.

[0003] The development trend of large turbines is towards tall towers and large-diameter impellers, which dramatically increase the bending moment loads on the towers. Existing technologies, to meet the turbine's requirements for tower strength and rigidity, increase the diameter of each tower segment and thicken the tower wall. However, due to height and width limitations for road transportation, the tower diameter cannot exceed a certain value, otherwise it cannot be transported. Currently, the tower segment diameter of many turbines has reached this limit, so the only way to improve its bending resistance is to increase the wall thickness of the tower segment. However, this increases steel consumption, significantly increasing costs and hindering the maximization of wind turbine efficiency.

[0004] Therefore, a new cable-stayed tower and wind turbine generator set are urgently needed. Summary of the Invention

[0005] The embodiments of the present invention provide a guyed tower and a wind turbine generator set. The guyed tower can meet the bending resistance requirements of the wind turbine generator set and has low cost.

[0006] On the one hand, according to an embodiment of the present invention, a cable-type tower is proposed, comprising: a tower body; a plurality of arms, wherein the arms are spaced apart in the circumferential direction of the tower body, one end of each arm is connected to the outer wall of the tower body, and the other end of each arm extends in a radial direction away from the tower body; a connecting seat, wherein each arm is provided with a connecting seat at one end radially away from the tower body; and a first cable assembly, wherein the first cable assembly comprises a plurality of first cables spaced apart in the circumferential direction, wherein one end of each first cable is connected to one of the connecting seats and the other end extends in a direction away from the connecting seat.

[0007] According to one aspect of an embodiment of the present invention, the boom is a hollow frame structure, comprising a plurality of chords and webs, wherein the plurality of chords are spaced apart and extend radially away from the tower body, and two adjacent chords are connected by a web.

[0008] According to one aspect of an embodiment of the present invention, multiple chords converge toward each other at one end away from the tower body, and the outer contour size of the cross section of the arm gradually increases from the end away from the tower body toward the side where the tower body is located.

[0009] According to one aspect of the embodiments of the present invention, the boom is detachably connected to the tower body.

[0010] According to one aspect of an embodiment of the present invention, a plurality of hinged seats are provided on one of the arm and the tower body, and a plurality of lugs are provided on the other. Each lug can extend into one of the hinged seats and be connected through a first pin.

[0011] According to one aspect of an embodiment of the present invention, the connecting seat is rotatably connected to the arm, and the rotation axis of the connecting seat and the arm intersects the axial and radial directions of the tower body, so that the angle between the first cable and the axis of the tower body is adjustable.

[0012] According to one aspect of the embodiment of the present invention, a mounting through hole is provided on the connecting seat, and the first cable is rotatably engaged with the mounting through hole.

[0013] According to one aspect of an embodiment of the present invention, the connecting seat includes a mounting plate and a support plate arranged relative to the mounting plate, the mounting through hole is set through the mounting plate, and the end of the arm away from the tower body is provided with lugs distributed at intervals in the circumferential direction, and the mounting plate and the lug are rotatably connected through a second pin shaft.

[0014] According to one aspect of an embodiment of the present invention, the cable-stayed tower further includes a reinforcement component, which is disposed inside the tower body and connected to the inner wall surface of the tower body.

[0015] According to one aspect of an embodiment of the present invention, the reinforcing component includes multiple reinforcing beams and auxiliary beams. The multiple reinforcing beams are arranged to intersect and extend radially. Each reinforcing beam is connected to the inner wall surface at both ends of its own extension direction, and an auxiliary beam is connected between two adjacent reinforcing beams.

[0016] According to one aspect of the embodiments of the present invention, the guyed tower further includes a connecting rod, and two adjacent booms are connected by the connecting rod.

[0017] According to one aspect of an embodiment of the present invention, the cable-type tower further includes a second cable assembly spaced apart from the first cable assembly in the axial direction of the tower body, the second cable assembly including a plurality of second cables spaced apart in the circumferential direction, one end of each second cable being connected to the tower body, the other end of the second cable extending away from the tower body, and an angle between the second cable and the axis of the tower body being greater than an angle between the first cable and the axis.

[0018] According to one aspect of an embodiment of the present invention, the cable-type tower further includes a tension detector, which is provided on at least one of the first cable and the second cable; and / or the cable-type tower further includes a tension regulator, which is provided on at least one of the first cable and the second cable; and / or the cable-type tower further includes a damper, which is provided on at least one of the first cable and the second cable.

[0019] In another aspect, an embodiment of the present invention provides a wind turbine generator set, comprising: the aforementioned guyed tower; and a nacelle connected to the guyed tower.

[0020] According to another aspect of the embodiments of the present invention, a maximum distance from the boom to a surface of a side of the nacelle facing and close to the guyed tower is less than one third of the height of the tower body.

[0021] According to another aspect of an embodiment of the present invention, the tower body includes multiple stacked tower sections, the cabin is connected to the outermost tower section in the stacking direction of the multiple tower sections, and the arm is arranged in the tower section connecting the tower body and the cabin.

[0022] According to an embodiment of the present invention, a guyed tower and a wind turbine generator set are provided. The guyed tower comprises a tower body, an arm, a connecting seat, and a first cable assembly. Since one end of the arm is connected to the outer wall of the tower body and the other end extends radially away from the tower body, the connecting seat is provided at the end of the arm away from the tower body and is used to connect with the first guyed cable. When the first guyed cable acts on the tower body, it can be connected to the arm through the connecting seat, and then connected to the tower body. This makes the arrangement height of the first guyed cable unrestricted by components such as blades, and the arm can provide a force arm to the first guyed cable to which it is connected, generating a greater bending moment, and can amplify the force of the first guyed cable, thereby improving the overall bending and torsional resistance of the guyed tower, and correspondingly reducing the requirements of the wind turbine generator set on the tower strength and rigidity. There is no need to increase the wall thickness of the tower body as a whole, reducing material consumption and weight, and thus reducing the production, transportation, and installation costs and difficulty of the guyed tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0024] Figure 1 1 is a schematic structural diagram of a wind turbine generator set according to an embodiment of the present invention;

[0025] Figure 2 is a partial axonometric diagram of a wind turbine generator set according to an embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the coordination between the boom and the tower body according to one embodiment of the present invention;

[0027] Figure 4 This is an overall schematic diagram of the connection between the arm, the connecting seat and the first cable according to an embodiment of the present invention;

[0028] Figure 5 This is an exploded schematic diagram of the arm, the connecting seat and the first cable according to one embodiment of the present invention;

[0029] Figure 6 This is a schematic structural diagram of a connecting socket according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic structural diagram of a second pin shaft according to an embodiment of the present invention;

[0031] Figure 8 It is a partial structural schematic diagram of a tower body according to one embodiment of the present invention;

[0032] Figure 9 is a top view of a guyed tower according to another embodiment of the present invention;

[0033] Figure 10 A schematic structural diagram of a wind turbine generator set according to another embodiment of the present invention.

[0034] in:

[0035] 1-Gusseted tower;

[0036] 10-tower body; 10a-tower section; 11-hinged seat;

[0037] 20-arm; 21-chord; 22-abdominal rod; 23-ear plate; 24-lug; 25-plate body;

[0038] 30-connecting seat; 31-mounting plate; 311-mounting through hole; 32-support plate;

[0039] 40 - first cable assembly; 41 - first cable; 42 - rotating pull rod; 50 - first pin; 60 - second pin; 61 - pin body; 62 - spring pin; 63 - locking nut;

[0040] 70-reinforcement component; 71-reinforcement beam; 72-auxiliary beam;

[0041] 80-connecting rod;

[0042] 90-second cable assembly; 91-second cable;

[0043] 110-tension tester;

[0044] 120-Damper;

[0045] 2-nacelle; 3-generator; 4-impeller; 401-hub; 402-blade; 5-fan foundation; 6-cable foundation;

[0046] X-radial direction; Y-circumferential direction; Z-axial direction.

[0047] In the drawings, like parts are given like reference numerals, but the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION

[0048] The features and exemplary embodiments of various aspects of the present invention are described in detail below. In the detailed description that follows, many specific details are set forth in order to provide a comprehensive understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is intended only to provide a better understanding of the present invention by illustrating examples of the present invention. In the accompanying drawings and the following description, at least some of the well-known structures and techniques are not shown in order to avoid unnecessary ambiguity in the present invention; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0049] The directional words appearing in the following description refer to the directions shown in the drawings and do not limit the specific structure of the cable-stayed tower and wind turbine generator set of the present invention. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0050] In order to better understand the present invention, Figures 1 to 10 A cable-stayed tower and a wind turbine generator set according to embodiments of the present invention are described in detail.

[0051] See also Figure 1 as well as Figure 2An embodiment of the present invention provides a wind turbine generator set, comprising a wind turbine foundation 5, a guyed tower 1, a nacelle 2, a generator 3, and an impeller 4. The guyed tower 1 is at least partially connected to the wind turbine foundation 5, the nacelle 2 is disposed at the top of the guyed tower 1, and the generator 3 is disposed in the nacelle 2. In some examples, the generator 3 may be located outside the nacelle 2. Of course, in some embodiments, the generator 3 may also be disposed inside the nacelle. The impeller 4 includes a hub 401 and a plurality of blades 402 connected to the hub 401. The impeller 4 is connected to the rotor of the generator 3 through its hub 401. When wind force acts on the blades 402, it drives the entire impeller 4 and the rotor of the generator 3 to rotate relative to the stator, thereby meeting the power generation requirements of the wind turbine generator set.

[0052] From the above description of the structure of the wind turbine generator set, it can be seen that heavy equipment such as the nacelle 2, generator 3 and impeller 4 are all supported on top of the cable-type tower 1. When the height of the wind turbine generator set is higher or the power is larger, higher requirements are placed on the load-bearing capacity of the cable-type tower 1.

[0053] Existing cable-stayed towers all use connecting ears to connect the cables to the tower wall or end flanges, resulting in a large cable inclination angle (the angle between the cable and the horizontal plane). Because the distance between the blades 402 and the tower body is small when the impeller 4 of the upper wind turbine is loaded, the cable connection to the tower body via the connecting ears means that the cable can only be arranged in the tower body area below the blades 402. In other words, the tensioning height is below the middle of the tower body (a semi-tensioned structure). Relatively speaking, the cable arrangement height is limited, and therefore the bending and torsional resistance provided by the cable to the tower body is also limited. Moreover, using only this connection method will produce a certain amount of deflection under the action of lateral loads and deadweight, making it difficult for the cable-stayed tower 1 to meet the bending and torsional resistance requirements of the wind turbine.

[0054] Based on this, the embodiment of the present invention also provides a new type of cable-stayed tower 1, such as Figure 1 as well as Figure 2 As shown, the cable-stayed tower 1 provided in an embodiment of the present invention includes a tower body 10, a boom 20, a connecting seat 30, and a first cable assembly 40. There are multiple booms 20, which are spaced apart in the circumferential direction Y of the tower body 10. One end of each boom 20 is connected to the outer wall of the tower body 10, and the other end of each boom 20 extends away from the tower body 10 in the radial direction X of the tower body 10. Each boom 20 is provided with a connecting seat 30 at one end away from the tower body 10 in the radial direction X of the tower body 10. The first cable assembly 40 includes a plurality of first cables 41 spaced apart in the circumferential direction Y. One end of each first cable 41 is connected to one of the connecting seats 30, and the other end extends away from the connecting seat 30. It can be connected to the wind turbine foundation 5, or of course, to a separately provided cable foundation 6.

[0055] Please also refer to Figure 3 as well as Figure 4 The cable-stayed tower 1 provided in an embodiment of the present invention comprises a boom 20, one end of which is connected to the outer wall of the tower body 10 and the other end of which extends away from the tower body 10 in the radial direction X of the tower body 10. Furthermore, a connecting seat 30 is provided at the end of the boom 20 away from the tower body 10 for connecting a first cable 41. When acting on the tower body 10, the first cable 41 can connect to the boom 20 and, in turn, the tower body 10 via the connecting seat 30. The boom 20 can provide a moment arm to the first cable 41 to which it is connected, generating a greater bending moment and amplifying the force of the first cable 41. This improves the overall bending and torsional resistance of the cable-stayed tower 1, correspondingly reducing the tower strength and rigidity requirements of the unit. This eliminates the need to increase the overall wall thickness of the tower body 10, reduces material usage and weight, and thus reduces the production, transportation, and installation costs and difficulty of the cable-stayed tower 1.

[0056] Moreover, by providing the arm 20, the angle between the first cable 41 and the axis of the tower body 10 can be reduced, that is, the inclination angle of the first cable 41 relative to the ground can be increased. Even if the first cable 41 is connected to a higher position of the tower body 10, interference with the blade 402 can be avoided, and a greater bending moment can be generated.

[0057] As an optional embodiment, the tower body 10 includes multiple tower segments 10a, which are stacked in sequence, and two adjacent tower segments 10a are connected to each other. The arm 20 can be connected to one of the tower segments 10a. Of course, a tower segment 10a can be connected to each of the two axial ends of the tower body 10.

[0058] Please continue reading Figure 3 as well as Figure 4 In some optional embodiments, the arm 20 of the guyed tower 1 provided by the present invention can be a hollow frame structure. This structure can meet the requirements of increased strength and lever arm, and is lightweight and easy to install and maintain.

[0059] Optionally, the boom 20 includes a plurality of chords 21 and webs 22. The chords 21 are spaced apart and extend away from the tower body 10 in the radial direction X. Two adjacent chords 21 are connected by the web 22. The boom 20 adopts the above-mentioned structure, which has the advantages of simple structure, convenient manufacturing, and good force resistance.

[0060] Optionally, the chord 21 and web 22 included in the boom 20 can both be made of section steel, such as round tubes, square tubes, H-shaped steel, or angle steel. In some optional examples, the chord 21 and web 22 can be made of round tubes, so that the boom 20 as a whole has advantages such as strong resistance to buckling, low wind resistance, good force transmission characteristics at the joints, light weight, and low price.

[0061] As an optional embodiment, the multiple chords 21 converge toward one another at the end away from the tower body 10, with the cross-sectional outer dimensions of the boom 20 gradually increasing from the end away from the tower body 10 toward the tower body 10. This arrangement increases the span of the boom 20 on the tower body 10, ensuring sufficient rigidity and stability in its connection with the tower body 10.

[0062] In some optional examples, a plurality of plate-like bodies 25 are provided on the side of the boom 20 facing the tower body 10 , and the plurality of plate-like bodies 25 are intersectingly arranged to facilitate the connection between the boom 20 and the tower body 10 .

[0063] Optionally, the number of chords 21 included in each arm 20 can be determined according to the force requirements. In some optional examples, it can include four chords 21, and multiple webs 22 are connected between each two adjacent chords 21. The arm 20 as a whole can be a hollow truss structure with higher load resistance.

[0064] As an optional embodiment, the guyed tower 1 provided in the above embodiments may have a detachable connection between the boom 20 and the tower body 10. This allows the boom 20 to be detached from the tower body 10 during transportation, facilitating transportation of the various components of the guyed tower 1 and ensuring that the tower 10 meets its dimensional requirements during transportation.

[0065] Optionally, one of the boom 20 and the tower body 10 is provided with a plurality of articulated seats 11, and the other is provided with a plurality of lugs 23, each of which is capable of extending into one of the articulated seats 11 and being connected via a first pin 50. The boom 20 and the tower body 10 adopt this structural form, and by accurately controlling the connection position between the boom 20 and the tower body 10, the lugs 23 and the articulated seats 11 are better stressed, and assembly and disassembly of the boom 20 and the tower body 10 are facilitated.

[0066] For example, multiple hinged seats 11 can be provided on the tower body 10, each hinged seat 11 being welded to the tower body 10. Furthermore, multiple lugs 23 can be provided on each arm 20, each lug 23 extending into one of the hinged seats 11 and connected to the hinged seat 11 via a first pin 50. Multiple lugs 23 can be provided on each arm 20, allowing each arm 20 to achieve multi-point connection to the tower body 10 via multiple lugs 23, thereby ensuring the stability of the connection with the tower body 10.

[0067] The number of the ear plates 23 included on each arm 20 is not specifically limited, and can be three, four or even more, as long as the connection strength requirement with the tower body 10 can be met.

[0068] It can be understood that setting the articulated seat 11 on the tower body 10 and the ear plate 23 on the boom 20 is only an optional implementation method, but is not limited to the above method. In some embodiments, the articulated seat 11 can also be set on the boom 20, and the ear plate 23 can be set on the tower body 10, which can also meet the connection requirements between the boom 20 and the tower body 10.

[0069] As an optional embodiment, each of the aforementioned connecting bases 30 is rotatably connected to the boom 20, and the rotational axis of the connecting base 30 and the boom 20 is arranged to intersect the axial Z and radial X directions of the tower body 10, so that the angle between the first cable 41 and the axis of the tower body 10 is adjustable. This allows the first cable 41 to have an adjustable angle relative to the axis of the tower body 10, or in other words, relative to the ground, based on the position of the boom 20 on the tower body 10 and site area restrictions. This minimizes the radiating area of the cable while ensuring the required bending and torsional resistance of the guyed tower 1, and effectively prevents interference with the blades 402.

[0070] Please also refer to Figure 5 as well as Figure 6 As an optional embodiment, the connecting base 30 is provided with a mounting hole 311, and the first cable 41 is rotatably engaged with the mounting hole 311. This allows the first cable 41 to freely rotate in the circumferential direction of the mounting hole 311 relative to the connecting base 30, thereby better absorbing the force of the first cable assembly 40 and releasing its torque.

[0071] In some optional implementations, a rotating pull rod 42 is provided at one end of the first cable 41 that cooperates with the connecting seat 30. The rotating pull rod 42 includes an extension portion and a limiting portion. The end of the first cable 41 extends into the extension portion of the rotating pull rod 42. The limiting portion is located at one end of the extension portion. The first cable 41 rotates with the connecting seat 30 through the extension portion and presses against the connecting seat 30 through the limiting portion to limit the separation of the first cable 41 from the connecting seat 30.

[0072] Please continue reading Figure 5 as well as Figure 6 In some optional embodiments, the connecting base 30 may include a mounting plate 31 and a support plate 32 disposed opposite the mounting plate 31. A mounting through-hole 311 is provided through the mounting plate 31. Lugs 24 are provided at intervals along the circumferential direction Y at the end of the boom 20 away from the tower body 10. The mounting plate 31 and the lugs 24 are rotatably connected via a second pin 60. This arrangement satisfies the rotational connection requirements between the connecting base 30 and the boom 20, facilitates assembly and disassembly of the connecting base 30 and the boom 20, facilitates the formation of the guyed tower 1, and facilitates the replacement of the connecting base 30.

[0073] Please also refer to Figure 7 In some optional examples, at least one of the first and second pins 50, 60 mentioned above may be a hollow pin. For example, the second pin 60 comprises a pin body 61, a spring pin 62, and a locking nut 63. The second pin 60 is inserted into each lug 24 and the mounting plate 31 and locked by the locking nut 63 and spring pin 62. The above-described structure of the second pin 60 saves material, is lightweight, and facilitates installation and removal at high altitudes. Furthermore, its hollow form allows for a larger diameter, increasing the contact area between the second pin 60, each lug 24, and the mounting plate 31, thereby reducing material stress and providing advantages such as strong impact resistance and vibration reduction. Furthermore, the locking mechanism of the locking nut 63 and spring pin 62 ensures reliable operation and easy assembly and disassembly. In specific implementations, the structure of the first pin 50 can be the same as that of the second pin 60, and the structure of the first pin 50 will not be repeated here.

[0074] Please also refer to Figure 8 As an optional embodiment, the cable-stayed tower 1 further includes a reinforcement member 70, which is disposed inside the tower body 10 and connected to the inner wall surface of the tower body 10 to increase the strength of the tower body 10 and improve its bearing capacity.

[0075] As an optional embodiment, at least one reinforcement member 70 may be provided at the connection area between the boom 20 and the tower body 10 and connected to the inner wall surface of the tower body 10. Since the boom 20 needs to be connected to the first cable 41, the connection point between the tower body 10 and the boom 20 needs to bear the weight of the boom 20 itself and the tension of the first cable 41. By providing the reinforcement member 70 at the connection area between the boom 20 and the tower body 10 and connecting it to the inner wall surface of the tower body 10, the connection area between the boom 20 and the tower body 10 can be strengthened, effectively preventing the tower body 10 from deforming under external forces. At the same time, because the reinforcement member 70 is located inside the tower body 10, it does not interfere with the installation of the boom 20.

[0076] Please continue reading Figures 2 to 8 In some optional examples, the reinforcement component 70 may include multiple reinforcement beams 71 and auxiliary beams 72. The multiple reinforcement beams 71 are intersectingly arranged and extend along the radial direction X. Each reinforcement beam 71 is connected to the inner wall surface at both ends of its extension direction, and an auxiliary beam 72 is connected between two adjacent reinforcement beams 71. This structure allows the reinforcement component 70 to minimize its weight while meeting strength requirements.

[0077] For example, when there are four booms 20, two reinforcement beams 71 can be provided, with the two reinforcement beams 71 intersecting each other. One end of each reinforcement beam 71 is disposed opposite one of the booms 20 in the radial direction X of the tower body 10 and connected to the inner wall surface, effectively preventing deformation of the tower body 10. One end of the auxiliary beam 72 can be connected to one of the reinforcement beams 71, and the other end can be connected to the other reinforcement beam 71. The auxiliary beam 72 and the reinforcement beam 71, as well as the reinforcement beam 71 and the inner wall surface of the tower body 10, can be connected to each other by welding. The number of reinforcement beams 71 and auxiliary beams 72 can be determined based on the number of booms 20 and the overall strength requirements of the tower body 10. Optionally, the entire reinforcement component 70 can be an axisymmetric structure to ensure more uniform load-bearing capacity across the tower body 10.

[0078] Please continue reading Figure 8 Optionally, the number of the reinforcement component 70 can be one, or more than two, and the two or more reinforcement components 70 are spaced apart in the axial direction Z of the tower body 10 to better improve the strength of the tower body 10 .

[0079] Please also refer to Figure 9 In some optional embodiments, the guyed tower 1 provided in the above embodiments further includes a connecting rod 80, and two adjacent booms 20 are connected by the connecting rod 80. By providing the connecting rod 80, the booms 20 can be connected into a whole, ensuring the stability of the whole.

[0080] Please also refer to Figure 10As an optional embodiment, the cable-stayed tower 1 provided in an embodiment of the present invention further includes a second cable assembly 90 spaced apart from the first cable assembly 40 in the axial direction Z of the tower body 10. The second cable assembly 90 includes a plurality of second cables 91 spaced apart in the circumferential direction Y. One end of each second cable 91 is connected to the tower body 10, and the other end of the second cable 91 extends away from the tower body 10 and may be optionally connected to a corresponding cable base (not shown). The angle between the second cable 91 and the axis of the tower body 10 is greater than the angle between the first cable 41 and the axis. By providing the second cable assembly 90, the bending and torsional resistance of the cable-stayed tower 1 can be further improved. The second cable assembly 90 can be provided below the lowest end of the blade 402 and can be connected to the tower body 10 via the arm 20. Of course, it can also be directly connected to the tower body 10 via a connecting ear to ensure connection strength. For ultra-high towers with large-span spatial structures, by simultaneously providing the first cable assembly 40 and the second cable assembly 90, the mid-span bending moment of the tower body 10 can be reduced, thereby further improving the stiffness, lateral bending resistance and safety performance of the entire tower, controlling the vibration of the cable-stayed tower 1, and making the cable-stayed tower 1 more cost-effective.

[0081] Please continue reading Figure 1 As an optional implementation, the cable-type tower 1 provided in the embodiment of the present invention may further include a tension detector 110, and the tension detector 110 is provided on at least one of the first cable 41 and the second cable 91. Taking the provision of the tension detector 110 on the first cable 41 as an example, the tension detector 110 can be used to detect the tension of the first cable 41. Optionally, the tension detector 110 may have a real-time alarm function. The alarm signal and monitoring data are connected to the main control system of the wind turbine generator set, and the fault is reported and the data is uploaded to the wind farm monitoring platform (SCADA monitoring system) through the main control system and the wind turbine generator set status monitoring network. Operation and maintenance personnel can receive fault information in a timely manner and analyze the data at any time, predict faults and take corresponding measures to ensure the normal and long-term reliability of the first cable 41 system.

[0082] Optionally, the tension detector 110 is not limited to being provided only on the first cable 41 , and may also be provided on the second cable 91 to better detect the tension of each cable.

[0083] Optionally, the tension detector 110 may be a tension sensor, which may be provided on the first cable 41 and / or the second cable 91 to detect the tension of the first cable 41 and / or the second cable 91 .

[0084] In some optional embodiments, the guyed tower 1 provided by the embodiments of the present invention may further include a tension adjuster (not shown), which is provided on at least one of the first cable 41 and the second cable 91. Optionally, the tension adjuster may be provided on the first cable 41 to adjust the tension of the first cable 41 so that the tension exerted on the tower body 10 always meets a preset requirement.

[0085] For example, when the tension of the first cable 41 detected by the tension detector 110 is lower than a preset tension value, the tension of the first cable 41 can be adjusted by adjusting the tension adjuster to meet the preset requirement.

[0086] The tension adjuster can be located at any position on the first cable 41 as long as it can meet the tension adjustment requirements of the first cable 41. It is understood that the tension adjuster is not limited to being located on the first cable 41, and can also be located on the second cable 91 to meet the tension adjustment requirements of the second cable 91.

[0087] Optionally, the tension regulator may be a threaded adjustment mechanism or a hydraulic adjustment structure, such as a telescopic cylinder, and the tension may be adjusted by threaded adjustment or hydraulic adjustment of the telescopic cylinder.

[0088] like Figures 1 to 5 As an optional embodiment, the cable-stayed tower 1 provided in this embodiment of the present invention further includes a damper 120, which is provided on at least one of the first cable 41 and the second cable 91. Optionally, the damper 120 can be provided on the first cable 41 to achieve vibration reduction for the first cable 41. It should be understood that the damper 120 is not limited to being provided only on the first cable 41; the damper 120 can also be provided on the second cable 91 to meet the vibration reduction requirements of the second cable 91.

[0089] Optionally, a damper 120 is provided at the end of the first cable 41 proximal to the tower body 10 and / or distal to the tower body 10. Of course, in some embodiments, a damper 120 may also be provided at the end of the second cable 91 proximal to the tower body 10 and / or distal to the tower body 10. The damper 120 may be a viscous damper or a pneumatic damper. Optionally, when the damper 120 is provided on the first cable 41, the damper 120 provided at the end proximal to the tower body 10 may be connected to the rotating rod 42, or may be integrally formed with the rotating rod 42.

[0090] Optionally, the first cable 41 and the second cable 91 of the cable-stayed tower 1 provided in an embodiment of the present invention can both be steel strands or other steel ropes, and can be anti-corrosive using techniques such as oiling and spraying epoxy layers and a waterproof and aging-resistant protective sleeve (or protective tube) to ensure their anti-corrosion performance and service life, thereby achieving maintenance-free operation.

[0091] In some optional embodiments, when the guyed tower 1 is applied to a wind turbine generator system, the maximum distance between the boom 20 and the surface of the nacelle 2 facing and close to the guyed tower 1 is less than one-third of the height of the tower body 10. This arrangement further ensures the tower's bending resistance without interfering with the blades 402.

[0092] Optionally, the nacelle 2 is located on the outermost tower segment 10a in the stacking direction of the multiple tower segments 10a, and the boom 20 is provided on the tower segment 10a connecting the tower body 10 and the nacelle 2. This arrangement can provide the tower body 10 with maximum rigidity and bending resistance, reduce the inclination angle with the ground, and thus reduce the floor space.

[0093] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A cable-stayed tower (1), characterized in that: include: Tower body(10); A plurality of arms (20) are provided and spaced apart in the circumferential direction (Y) of the tower body (10), one end of each arm (20) is connected to the outer wall surface of the tower body (10), and the other end of each arm (20) extends in a radial direction (X) of the tower body (10) away from the tower body (10); A connecting seat (30), each arm (20) is provided with the connecting seat (30) at one end away from the tower body (10) in the radial direction (X); A first cable assembly (40), wherein the first cable assembly (40) comprises a plurality of first cables (41) spaced apart in the circumferential direction (Y), wherein one end of each first cable (41) is connected to one of the connecting seats (30) and the other end extends in a direction away from the connecting seat (30).

2. The guyed tower (1) according to claim 1, characterized in that The arm (20) is a hollow frame structure, and the arm (20) includes a plurality of chords (21) and webs (22). The plurality of chords (21) are spaced apart and extend in the radial direction (X) away from the tower body (10), and two adjacent chords (21) are connected by the web (22).

3. The guyed tower (1) according to claim 2, characterized in that The plurality of chords (21) are gathered together at one end away from the tower body (10) toward each other, and the outer contour size of the cross section of the arm (20) gradually increases from the end of the arm (20) away from the tower body (10) toward the side where the tower body (10) is located.

4. The guyed tower (1) according to claim 1, characterized in that The arm (20) is detachably connected to the tower body (10).

5. The guyed tower (1) according to claim 4, characterized in that A plurality of hinged seats (11) are provided on one of the arm (20) and the tower body (10), and a plurality of lugs (23) are provided on the other. Each lug (23) can extend into the interior of one of the hinged seats (11) and be connected via a first pin (50).

6. The guyed tower (1) according to claim 1, characterized in that The connecting seat (30) is rotatably connected to the arm (20), and the rotation axis of the connecting seat (30) and the arm (20) is arranged to intersect with the axial direction (Z) and the radial direction (X) of the tower body (10), so that the angle between the first cable (41) and the axis of the tower body (10) is adjustable.

7. The guyed tower (1) according to claim 6, characterized in that A mounting through hole (311) is provided on the connecting seat (30), and the first cable (41) is rotatably engaged with the mounting through hole (311).

8. The guyed tower (1) according to claim 7, characterized in that The connecting seat (30) includes a mounting plate (31) and a support plate (32) arranged relative to the mounting plate (31); the mounting through hole (311) is arranged through the mounting plate (31); an end of the arm (20) away from the tower body (10) is provided with lugs (24) spaced apart in the circumferential direction (Y); the mounting plate (31) and the lugs (24) are rotatably connected via a second pin shaft (60).

9. The guyed tower (1) according to any one of claims 1 to 8, characterized in that: The cable-stayed tower (1) further comprises a reinforcement component (70), wherein the reinforcement component (70) is arranged inside the tower body (10) and connected to the inner wall surface of the tower body (10).

10. The guyed tower (1) according to claim 9, characterized in that The reinforcing component (70) includes a plurality of reinforcing beams (71) and auxiliary beams (72). The plurality of reinforcing beams (71) are intersectingly arranged and extend along the radial direction (X). Each reinforcing beam (71) is connected to the inner wall surface at both ends of its own extension direction, and the auxiliary beam (72) is connected between two adjacent reinforcing beams (71).

11. The guyed tower (1) according to any one of claims 1 to 8, characterized in that: The cable-stayed tower (1) further comprises a connecting rod (80), and two adjacent booms (20) are connected via the connecting rod (80).

12. The guyed tower (1) according to any one of claims 1 to 8, characterized in that: The cable-stayed tower (1) further includes a second cable assembly (90) spaced apart from the first cable assembly (40) in the axial direction (Z) of the tower body (10), the second cable assembly (90) including a plurality of second cables (91) spaced apart in the circumferential direction (Y), one end of each second cable (91) being connected to the tower body (10), the other end of the second cable (91) extending in a direction away from the tower body (10), and an angle between the second cable (91) and the axis of the tower body (10) being greater than an angle between the first cable (41) and the axis.

13. The guyed tower (1) according to claim 12, characterized in that The cable-stayed tower (1) further comprises a tension detector (110), wherein the tension detector (110) is provided on at least one of the first cable (41) and the second cable (91); And / or, the cable-stayed tower (1) further comprises a tension regulator, and the tension regulator is provided on at least one of the first cable (41) and the second cable (91); And / or, the cable-stayed tower (1) further includes a damper (120), and the damper (120) is provided on at least one of the first cable (41) and the second cable (91).

14. A wind turbine generator set, characterized in that: include: The guyed tower (1) according to any one of claims 1 to 13; A nacelle (2) is connected to the cable-type tower (1).

15. The wind turbine generator set according to claim 14, characterized in that: The maximum distance from the arm (20) to the surface of the nacelle (2) facing and close to the side of the cable-stayed tower (1) is less than one-third of the height of the tower body (10).

16. The wind turbine generator set according to claim 14, characterized in that: The tower body (10) comprises a plurality of stacked tower sections (10a); the nacelle (2) is connected to the outermost tower section (10a) in the stacking direction of the plurality of tower sections (10a); and the boom (20) is arranged on the tower section (10a) connecting the tower body (10) and the nacelle (2).

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