Tower and wind generating set

Abstract

The invention provides a tower and a wind generating set, and relates to the technical field of wind power generation equipment. The tower comprises a plurality of supporting assemblies, a plurality of base plate components and a plurality of connecting assemblies. The supporting assemblies are arranged at intervals in the axial direction of the tower. The plurality of substrate parts and the plurality of supporting assemblies are alternately arranged in a laminated manner, and are matched with the plurality of supporting assemblies to form a barrel structure; and the connecting assemblies are arranged between the supporting assembly and the base plate component, and the connecting assemblies are used for detachably connecting the supporting assembly and the base plate component. The defects that in the prior art, due to the fact that a traditional tower is large in size and needs to be separated firstly and then assembled on site, the manufacturing cost and the field installation cost are high are overcome, the large-scale requirement of the tower is met, and meanwhile better transportation convenience and structural reliability are achieved.

Description

Technical Field

[0001] This application relates to the field of wind power generation equipment technology, and more particularly to a tower and a wind turbine generator set. Background Technology

[0002] With the rapid growth of global demand for clean energy, the wind power industry is developing towards larger unit capacity, longer blade length, and higher tower height. As a key supporting component of wind turbine generators, the optimization of the tower's structural design plays a crucial role in improving the overall performance of the unit and adapting to complex environments.

[0003] Currently, the most commonly used towers in the industry are multi-section steel cylindrical towers. They are manufactured by rolling and welding steel plates into sections several meters in diameter, which are then connected on-site to form a complete tower body that is tens or even hundreds of meters high.

[0004] However, with the increasing size of wind turbines, the diameter and length of tower sections are constantly increasing, leading to a sharp increase in their transport volume and weight, posing a severe challenge to road and bridge transportation conditions. To meet transport clearance requirements, the tower needs to be divided into more and shorter components, which are then welded on-site. Because the standards of each separated component are different, on-site splicing affects the overall integrity and fatigue resistance of the structure, and also increases manufacturing and on-site installation costs. Summary of the Invention

[0005] This application provides a tower and a wind turbine generator set to solve the problem that traditional towers in the prior art are large in size and require disassembly and on-site assembly, resulting in high manufacturing and on-site installation costs. The tower can meet the requirements of large size while also having better transportation convenience and structural reliability.

[0006] This application provides a tower, including a plurality of support components, a plurality of base plate components, and a plurality of connecting components. The plurality of support components are spaced apart along the axial direction of the tower. The plurality of base plate components are alternately stacked with the plurality of support components and cooperate with the plurality of support components to form a cylindrical structure. The plurality of connecting components are disposed between the support components and the base plate components, and the connecting components are used to detachably connect the support components and the base plate components.

[0007] According to the tower provided in the embodiments of this application, the support assembly includes a plurality of support members, which are spaced apart along the circumference of the tower; both ends of the support members are detachably connected to the corresponding base plate component through the connecting assembly.

[0008] According to the tower provided in the embodiments of this application, the base plate component is formed by splicing together at least two substrates.

[0009] According to the tower provided in the embodiments of this application, the connecting assembly includes a plurality of first connecting members, a limiting cylinder, and a flange. The limiting cylinder and the support member are correspondingly provided with a plurality of second connecting holes. The limiting cylinder has a limiting cavity inside, and the end of the support member is limited to the limiting cavity. The limiting cylinder is detachably connected to the support member through the first connecting members passing through the second connecting holes. The flange is provided on the outer periphery of the opening at one end of the limiting cylinder. The flange and the base plate component are correspondingly provided with a plurality of first connecting holes. The flange is detachably connected to the base plate component through the first connecting members passing through the first connecting holes.

[0010] Alternatively, the connecting assembly includes a plurality of first connectors and a flange, the flange being fixed to the end of the support member, and the flange being detachably connected to the base plate component through the plurality of first connectors.

[0011] According to the tower provided in the embodiments of this application, the support member is provided with connecting wings on both sides; the enclosing component includes an enclosing member and at least two bases, both sides of the enclosing member are detachably connected to the corresponding connecting wings through the second connecting member; at least two bases are respectively disposed at both ends of the enclosing member, and the bases are detachably connected to the corresponding base plate components through the second connecting member.

[0012] According to the tower provided in the embodiments of this application, the diameter of the top of the cylindrical structure gradually decreases from bottom to top, and the top of the cylindrical structure is detachably provided with a transition section, which is used to connect with the yaw system of the wind turbine generator.

[0013] According to the tower provided in the embodiments of this application, the bottom end of the cylindrical structure is the base plate component, and the base plate component at the bottom end is provided with a plurality of anchor bolt holes, which are used for connection with the foundation.

[0014] According to the tower provided in the embodiments of this application, the tower also includes steel strands, one end of which is connected to the transition section and the other end is used to connect to the foundation.

[0015] This application also provides a wind turbine generator set, including a tower, a yaw system, and a nacelle assembly as described in any of the above embodiments. The yaw system is located at the top of the tower; the nacelle assembly is located at the top of the yaw system.

[0016] This application provides a tower and wind turbine generator set that employs a modular and detachable structural design, combining support components, base plate parts, and connecting components, to break down the traditional bulky integrated tower into smaller, more easily transportable standard modules. The support components, acting as the main load-bearing framework, ensure the longitudinal strength and stiffness of the structure; the base plate parts, acting as transverse connectors, link the discrete support components into a whole, restoring the required bending and torsional resistance of the tower section. This design solves the problem of oversized transport while avoiding the drawbacks of pre-cutting and on-site assembly. Standardized connection processes ensure the integrity of the final structure and the reliability of the connection nodes. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is one of the structural schematic diagrams of the tower provided in this application;

[0019] Figure 2 A schematic diagram of the base plate component of the tower provided in this application;

[0020] Figure 3 for Figure 1 Enlarged view of point A in the image;

[0021] Figure 4 This is the second structural schematic diagram of the tower provided in this application;

[0022] Figure 5 A structural schematic diagram of the support components for the tower provided in this application;

[0023] Figure 6 A structural schematic diagram of the enclosed component of the tower provided in this application;

[0024] Figure 7 for Figure 1 Enlarged view of point B in the image.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100: Support component; 110: Support piece; 120: Connecting wing;

[0027] 200: Substrate component; 210: Substrate; 220: Anchor bolt hole;

[0028] 300: Connecting component; 310: Flanged edge; 320: Limiting sleeve; 330: Enclosing component;

[0029] 311: First connecting hole;

[0030] 321: Second connecting hole;

[0031] 331: Enclosure; 332: Base;

[0032] 400: Transition section. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] As described in the background section, the towers commonly used in the industry are currently multi-section steel cylindrical towers. They are manufactured by rolling and welding steel plates into sections several meters in diameter, which are then connected on-site to form a complete tower body that is tens or even hundreds of meters high.

[0035] However, with the increasing size of wind turbines, the diameter and length of single sections of the towers are constantly increasing, leading to a sharp increase in their transport volume and weight, posing a severe challenge to transportation conditions such as roads and bridges. To meet transport clearance requirements, the towers need to be divided into more and shorter components, which are then welded on-site. However, because the standards of the various separated components are different, on-site splicing affects the overall integrity and fatigue resistance of the structure.

[0036] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0037] Reference Figure 1 This application provides a tower, including a plurality of support components 100, a plurality of base plate components 200 and a plurality of connecting components 300. The plurality of support components 100 are spaced apart along the axial direction of the tower. The plurality of base plate components 200 and the plurality of support components 100 are alternately stacked and arranged, and cooperate with the plurality of support components 100 to form a cylindrical structure. The plurality of connecting components 300 are disposed between the support components 100 and the base plate components 200, and the connecting components 300 are used to detachably connect the support components 100 and the base plate components 200.

[0038] Specifically, the support assembly 100 refers to the support structure unit that is segmented along the height direction of the tower, i.e., axially, and is used to bear the main axial pressure and bending moment of the tower. The base plate component 200 refers to the plate-shaped connecting member whose planar shape is adapted to the cross-sectional shape of the tower, such as a circular or polygonal ring plate. By alternately stacking with the support assembly 100 along the axial direction, multiple support components at the same height are connected into a whole to form a stable cylindrical cross-section.

[0039] During operation, multiple support components 100 and base plate components 200 are first transported to the wind farm site as independent modules. During installation, the lowest base plate component 200 is first hoisted onto the foundation and initially secured. Then, the first support component 100 is hoisted onto the base plate component 200, and the bottom end of the support component 100 is securely connected to the base plate component 200 using a connecting component 300. Next, the second base plate component 200 is hoisted to the top of the first support component 100 and connected using the connecting component 300. This alternating hoisting and connection of support components 100 and base plate components 200 continues until the entire tower structure is assembled.

[0040] This embodiment employs a modular and detachable structural design, utilizing support components 100, base plate components 200, and connecting components 300, to break down the traditionally bulky integrated tower into smaller, more easily transportable standard modules. The support components 100, acting as the main load-bearing skeleton, ensure the structure's longitudinal strength and stiffness; the base plate components 200, as transverse connectors, link the discrete support components 100 into a whole, restoring the required bending and torsional resistance of the tower section. This design solves the problem of oversized transport while avoiding the drawbacks of pre-cutting and on-site assembly. Standardized connection processes ensure the integrity of the final structure and the reliability of the connection nodes.

[0041] Reference Figure 1 In some embodiments of this application, the support assembly 100 includes a plurality of support members 110, which are spaced apart along the circumference of the tower; both ends of the support members 110 are detachably connected to the corresponding base plate component 200 through the connecting assembly 300.

[0042] Specifically, the support member 110 is the basic load-bearing unit constituting the support assembly 100, such as an independent steel pipe or steel column. Multiple support members 110 are evenly spaced along the circumferential direction of the tower cross-section to form a ring-shaped support frame. The two ends of the support member 110 refer to its axial top and bottom ends. These two ends are detachably connected to the two adjacent base plate components 200 above and below through the connecting assembly 300, thereby fixing the support member 110 and integrating it into the overall tower structure.

[0043] Furthermore, the support member 110 is vertically arranged, and its two ends can be machined into flat surfaces to fit against the base plate component 200. For detachable connection, threaded holes are machined at the ends of the support member 110. Correspondingly, the base plate component 200 connected to this end also has through holes at corresponding positions. During installation, the support member 110 is hoisted into place, its end connection holes are aligned with the connection holes on the base plate component 200, and then high-strength bolts are inserted and preload applied to complete the fixing. Multiple support members 110 can be connected to the same base plate component 200 simultaneously, with the base plate component 200 serving to connect and distribute the load.

[0044] During use, when installing a support component 100 of a certain layer, the operator needs to hoist multiple support components 110 one by one or in groups onto the already installed lower substrate component 200. Each support component 110 must be accurately aligned so that its bottom connection structure is aligned with the preset connection point on the lower substrate component 200, and temporarily fixed. After all support components 110 are in place, they are tightened uniformly. Then, the upper substrate component 200 is hoisted onto the top of these support components 110, and the alignment and tightening process is repeated to firmly clamp the support component 100 between the two substrate components 200.

[0045] This embodiment achieves complete modularity of the load-bearing frame by designing both ends of each support member 110 to be detachably connected to the base plate component 200. Each support member 110 can serve as an independent transport unit, and its size can be flexibly designed to fully meet the limitations of conventional road transportation, greatly reducing logistics difficulties and costs. Simultaneously, this discrete arrangement means that the tower cross-section is no longer a closed cylindrical wall but an open lattice form, resulting in better space utilization during transportation. During on-site assembly, the discrete support members 110 are reintegrated into a whole through the base plate component 200, restoring the necessary cross-sectional characteristics of the structure.

[0046] Reference Figure 2 In some embodiments of this application, the substrate component 200 is formed by splicing together at least two substrates 210.

[0047] Specifically, substrate 210 is a prefabricated modular unit constituting substrate component 200. At least two substrates 210 refer to substrate component 200 being composed of two or more independent modular units assembled together. For example, a circular substrate component 200 can be composed of two 180-degree arc-shaped substrates 210 joined together. These substrates 210 are transported separately and, upon arrival at the site, are connected by welding or other connection methods to form a complete substrate component 200 used to connect the support assembly 100.

[0048] Furthermore, the substrate 210 can be a plate-like structure cut or cast from steel plate, and its shape is part of the overall shape of the substrate component 200. Each substrate 210 has a connecting portion on its edge for interlocking. This connecting portion can be an additional connecting plate, or it can be an overlapping edge and bolt holes directly machined into the substrate 210 body. During interlocking, the mating edges of two adjacent substrates 210 are brought together to align their connecting holes, and then bolts are inserted and tightened to achieve a rigid connection between the two substrates 210. After all substrates 210 are sequentially interlocked, a substrate component 200 with a complete outline and sufficient rigidity is formed, and the holes for connecting the support member 110 have been prefabricated in the factory.

[0049] This embodiment solves the bottleneck of transporting large, monolithic connecting plates by designing the substrate component 200 as being composed of at least two substrates 210 spliced ​​together. The dimensions of the substrates 210 can be flexibly controlled, ensuring compliance with width and height restrictions for road transport. This segmented design does not diminish the functionality of the substrate component 200; the assembled whole on-site can still effectively transfer loads and connect the support members 110 into a single unit. It reduces the difficulty of factory manufacturing and logistics, while providing flexibility for on-site installation, especially in confined installation spaces, where segmented hoisting is easier to operate than monolithic hoisting.

[0050] Reference Figure 3 In some embodiments of this application, the connecting assembly 300 includes a plurality of first connecting members, a limiting cylinder 320, and a flange 310. The limiting cylinder 320 and the support member 110 are respectively provided with a plurality of second connecting holes 321. The limiting cylinder 320 has a limiting cavity inside, and the end of the support member 110 is limited to the limiting cavity. The limiting cylinder 320 is detachably connected to the support member 110 through the second connecting holes 321 via the first connecting members. The flange 310 is provided on the outer periphery of the opening at one end of the limiting cylinder 320. The flange 310 and the substrate component 200 are respectively provided with a plurality of first connecting holes 311. The flange 310 is detachably connected to the substrate component 200 through the first connecting holes 311 via the first connecting members. Alternatively, the connecting assembly 300 includes a plurality of first connecting members and a flange. The flange is fixed to the end of the support member 110 and is detachably connected to the substrate component 200 via a plurality of first connecting members.

[0051] The first connector is a mechanical fastening element that enables a detachable connection, such as a high-strength bolt, screw, or pin. The limiting sleeve 320 is a cylindrical connector with an internal cavity used to accommodate and constrain the end of the support member 110. The flange 310 is a flange structure extending outward from the outer periphery of the limiting sleeve 320, providing a mounting surface for connection to the base plate component 200. The flange is another separate disc-shaped connector that can be fixed to the end of the support member 110 by welding or other methods.

[0052] In the configuration where the limiting cylinder 320 and the support member 110 cooperate, the cross-sectional shape of the inner cavity of the limiting cylinder 320 matches the outer contour of the end of the support member 110, for example, both being circular, square, or polygonal, to achieve circumferential positioning. Multiple second connecting holes 321 are formed on the cylinder wall of the limiting cylinder 320, and corresponding connecting holes are also formed at the end of the support member 110. During installation, the end of the support member 110 is inserted into the inner cavity of the limiting cylinder 320, aligning the connecting holes, and a first connector is passed through the second connecting holes 321 and tightened to achieve a detachable connection. The flange 310 and the limiting cylinder 320 can be integrally formed, for example, by casting or sheet metal stamping and spinning. Multiple first connecting holes 311 are formed on the flange 310, and the base plate component 200 has pre-set connecting holes at corresponding positions. The flange 310 and the base plate component 200 are connected by the first connector sequentially passing through the first connecting holes 311 and the holes on the base plate component 200 and tightening it.

[0053] In an alternative arrangement where the flange mates with the support member 110, the flange is circumferentially welded to the end of the support member 110 via a full penetration weld. Multiple connection holes are formed on the flange face, and a first connector passes through these connection holes and connects to corresponding connection holes on the base plate component 200, securing the connection between the support member 110 and the base plate component 200. The first connector, the limiting sleeve 320, the flange 310, and the flange can be made of low-alloy high-strength steel to ensure the strength and fatigue performance of the connection joint.

[0054] This embodiment provides two modular, standardized, and detachable interfaces for connecting the support member 110 and the base plate component 200: a first connection scheme including a limiting cylinder 320 and a flange 310, and a second connection scheme including a flange. The limiting cylinder 320 scheme wraps around and limits the end of the support member 110 through its inner cavity, effectively transmitting axial pressure and bending moment. The flange 310 provides a large connection surface, allowing the load to be evenly distributed to the base plate component 200. The flange scheme uses direct end-face contact and bolt group connection, resulting in good connection rigidity and direct force transmission. Both schemes avoid on-site welding, achieving rapid and reliable on-site assembly through pre-fabricated holes and standardized fasteners, ensuring the consistency of connection node quality and structural integrity. Furthermore, the dimensions of individual connection components 300 easily meet transportation constraints.

[0055] Reference Figure 4 In some embodiments of this application, the connecting component 300 includes a plurality of second connectors and a plurality of closing components 330. The plurality of closing components 330 are disposed in the gap formed between two adjacent support members 110 and two adjacent substrate components 200, and the closing components 330 are detachably connected to the support members 110 and the substrate components 200 through the second connectors.

[0056] Specifically, the second connector is another fastener used to achieve a detachable connection, such as a bolt, screw, or pin. The closing member 330 is a component used to fill and close the quadrilateral or near-quadrilateral gap formed between two adjacent support members 110 and two adjacent base plate members 200. This gap is an opening naturally formed due to the circumferentially spaced arrangement of the support members 110 and the axially spaced arrangement of the base plate members 200.

[0057] Furthermore, the shape of the sealing component 330 matches the shape of the gap to be sealed, and it can be a single piece or a plate-like or lightweight truss-like structure assembled from multiple pieces. The edges of the sealing component 330 are provided with connecting structures, such as flanges or connecting lugs, which have connecting holes. Correspondingly, connection points are also pre-set on the sides of the support member 110 and the plate surface of the base plate component 200 around the gap, such as welded connecting plates with holes. When installing the sealing component 330, it is hoisted to the predetermined gap, aligning the connecting holes on its edges with the connecting holes on the support member 110 and the base plate component 200, and then a second connector is used to pass through these holes and tighten it, thereby fixing the sealing component 330 to the main tower structure.

[0058] After the main tower structure (i.e., support assembly 100 and base plate component 200) is installed, the installation of the enclosure component 330 begins. Operators select appropriate enclosure component 330 modules based on the size and location of the gaps and transport them to the installation height. The enclosure component 330 is then fitted into the gap, its position adjusted so that its connecting holes align with the connecting holes on the main structure. A second connector (such as a bolt) is then inserted and initially tightened. The enclosure components 330 at all gaps are installed sequentially, and finally, a final tightening is performed to complete the enclosure of the tower's outer surface.

[0059] This embodiment provides a modular skinning solution for the tower by incorporating a detachable enclosure 330 within the formed structural gaps. The enclosure 330 does not bear the main vertical load of the tower; its primary function is to create a relatively enclosed cylindrical appearance, reducing wind resistance and potentially preventing rainwater, foreign object intrusion, or climbing from affecting the internal structure. Because the enclosure 330 is detachably connected to the main structure, it can be separated during transport, further reducing the size of a single transport unit. On-site, the installation of the enclosure 330 can be carried out after the main structure has stabilized, serving as a separate and relatively lightweight operation, thus improving the flexibility of the installation organization.

[0060] Reference Figure 5 and Figure 6In some embodiments of this application, the support member 110 is provided with connecting wings 120 on both sides; the closing member 330 includes a closing member 331 and at least two bases 332, both sides of the closing member 331 are detachably connected to the corresponding connecting wings 120 through second connectors; at least two bases 332 are respectively disposed at both ends of the closing member 331, and the bases 332 are detachably connected to the corresponding base plate member 200 through second connectors.

[0061] Specifically, the connecting wing 120 is a plate-like structure extending laterally from the side of the support member 110, such as a triangular or rectangular stiffening plate welded to the side of the support member 110. The closing member 331 is the core plate in the closing component 330 used to cover the main area of ​​the gap. The base 332 is a connecting base disposed at both ends (upper and lower ends) of the closing member 331, used to connect the ends of the closing member 331 to the base plate component 200. The base 332 can be integrally formed with the closing member 331, or it can be connected to the closing member 331 by welding or bolts.

[0062] Furthermore, the connecting wings 120 are symmetrically welded to both sides of the support member 110, and their extended ends are machined with connecting holes. The two sides of the closure member 331 also have corresponding connecting structures, such as bent edges or additional connecting plates, which also have connecting holes. During installation, the closure member 331 is placed in the gap, with its connecting holes aligned with the connecting holes of the connecting wings 120 on the left and right support members 110. A second connector (such as a bolt) is passed through and tightened to achieve a lateral connection. Simultaneously, the bases 332 at the upper and lower ends of the closure member 331 rest on the surface or side of the upper and lower substrate components 200. The bases 332 have connecting holes, which are aligned with preset connection points on the substrate components 200, and then tightened using a second connector to achieve an end connection.

[0063] When installing the enclosure component 330 at a specific location, first hoist the enclosure component 331 with the base 332 to the corresponding gap. The operator adjusts the position of the enclosure component 331 so that its two edges are close to the connecting wings 120 on the left and right support members 110, and the connecting holes are roughly aligned. First, insert some bolts for initial lateral fixation. Then, adjust the vertical position of the enclosure component 331 so that its upper and lower bases 332 contact the corresponding base plate component 200 and align with the connecting holes, and then insert bolts for end fixation. Finally, tighten all second connecting parts to the predetermined torque to complete the installation of the enclosure component 330.

[0064] This embodiment provides a clear and reliable multi-point connection scheme for the enclosure component 330 by setting up a connecting wing 120, an enclosure 331, and a base 332. The connecting wing 120 serves as a standardized connection interface on the support component 110, making the lateral connection of the enclosure 331 direct and robust. The base 332 effectively transfers the end load of the enclosure 331 to the base plate component 200, preventing excessive deformation of the enclosure 331 caused by relying solely on lateral connection suspension. This design makes the installation and alignment of the enclosure component 330 easier, improves connection rigidity, and effectively withstands external loads such as wind pressure, ensuring its stability during tower service.

[0065] Reference Figure 1 and Figure 7 In some embodiments of this application, the diameter of the top of the cylindrical structure gradually decreases from bottom to top, and the top of the cylindrical structure is detachably provided with a transition section 400, which is used to connect with the yaw system of the wind turbine generator set.

[0066] Specifically, the diameter of the top of the cylindrical structure gradually decreases from bottom to top, meaning the cross-sectional dimensions of the tower taper from bottom to top. This can be achieved by designing the support member 110 of this layer to be inclined. The transition section 400 is a transitional connection component whose lower end connects to the topmost structure of the tower (which can be the uppermost base plate member 200 or support assembly 100), while its upper end is designed as a standard interface for docking with the yaw system of the wind turbine generator. The transition section 400 is detachably connected to the top of the tower cylindrical structure.

[0067] During operation, after the main tower structure is installed, the transition section 400 is hoisted to the top of the tower. Operators adjust the position of the transition section 400, ensuring its lower connection hole aligns precisely with the connection hole at the top of the tower, and then insert all connecting bolts. The bolts are tightened according to the specified sequence and torque value to complete the fixed connection between the transition section 400 and the tower. Subsequently, the yaw system and nacelle of the wind turbine generator can be hoisted onto the transition section 400.

[0068] This embodiment achieves a standardized and modular interface between the tower body and the upper generator set by setting a detachable adapter section 400 at the top of the tower body. The adapter section 400 converts the conical or non-standard interface at the top of the tower into a standard interface that matches the yaw system, enhancing the versatility and interchangeability between different components. Because the adapter section 400 is detachable, its manufacturing and transportation can be optimized independently of the tower body. At the same time, this design also facilitates future replacement or maintenance of the yaw system without affecting the main tower structure.

[0069] Reference Figure 3In some embodiments of this application, the bottom end of the cylindrical structure is a base plate component 200, and the base plate component 200 at the bottom end is provided with a plurality of anchor bolt holes 220, which are used for connection with the foundation.

[0070] Specifically, the bottom end of the cylindrical structure refers to the lowest part of the tower that connects to the foundation. In this construction, the bottom layer of the tower is directly formed by a base plate component 200, which serves as the bottom ring plate or base plate of the tower. Several anchor bolt holes 220 are machined on the base plate component 200 at the bottom end. These holes can be round or oblong, and are used to accommodate and pass through anchor bolts or foundation bolts from the foundation.

[0071] Furthermore, the base plate component 200 at the bottom of the tower can be thicker than base plate components 200 at other locations to withstand greater local compressive stress and bending moments from the foundation. The arrangement pattern of the anchor bolt holes 220 (such as the number, spacing, and distribution circle diameter) corresponds perfectly to the arrangement of the anchor bolt sleeves or anchor bolts pre-embedded on the top surface of the foundation. During installation, the base plate component 200 is hoisted by a crane and slowly lowered so that its anchor bolt holes 220 are aligned with the anchor bolts on the top surface of the foundation. Then, the anchor bolts are inserted and placed on the foundation pad. Afterward, washers and nuts are fitted onto the anchor bolts, and preload is applied as required by the design, thereby firmly anchoring the bottom of the tower to the foundation.

[0072] This embodiment provides a direct and efficient method for connecting the tower to the foundation by designing the bottom of the tower as a base plate component 200 with anchor bolt holes 220. This design integrates the connection function at the bottom of the tower into a standard base plate component 200 module, eliminating the need for on-site welding or installation of additional bottom flanges in traditional methods, thus simplifying the construction process. The anchor bolt holes 220 on the base plate component 200 are precision-machined in the factory, ensuring the accuracy of the fit with the foundation anchor bolts, thereby ensuring the verticality of the tower installation and the quality of the bottom connection. This modular bottom design also allows the tower to adapt to standardized foundation interfaces of different types (such as extended foundations and pile foundations).

[0073] In some embodiments of this application, the tower also includes steel strands, one end of which is connected to the transition section 400 and the other end of which is used to connect to the foundation.

[0074] Specifically, a steel strand is a prestressed cable made of multiple high-strength steel wires twisted together. In this scheme, one end of the steel strand is fixed to the transition section 400 or its internal structure by an anchor, and the other end of the steel strand extends downward, passes through a reserved channel inside or outside the tower cylinder structure, and is finally anchored in the foundation at the bottom of the tower.

[0075] Furthermore, the transition section 400 is equipped with upper anchoring points for the steel strands, such as specially designed anchoring steel plates or anchor boxes. The lower end of the steel strand is anchored to pre-embedded anchors within the foundation. During installation, the steel strand is first threaded through from the top until the bottom end is exposed and temporarily fixed. After the main tower structure is installed and initially tightened, hydraulic tensioning equipment is used to tension each steel strand in stages from the bottom or top to achieve the design preload, and then it is permanently locked with anchorages.

[0076] This embodiment provides an active strengthening method for the tower structure by introducing a steel strand prestressing system into the tower. The preload applied by the steel strands can generate a favorable stress state within the structure before the tower bears external loads such as wind loads, for example, offsetting some of the tensile stress caused by bending moments. This can significantly improve the tower's fatigue resistance, stiffness, and stability, especially for ultra-high and flexible towers. The combination of the prestressing system with the modular tower main structure further expands the performance boundaries and application range of the tower without changing the transport dimensions of the main modules.

[0077] This application also provides a wind turbine generator set, including a tower, a yaw system, and a nacelle assembly as described in any of the above embodiments, wherein the yaw system is located at the top of the tower and the nacelle assembly is located at the top of the yaw system.

[0078] Specifically, the yaw system is a rotating mechanism installed at the top of the tower, including a yaw bearing, a yaw drive motor, and gears, used to adjust the azimuth angle of the nacelle according to the wind direction. The nacelle assembly is the outer shell and structural assembly that houses key equipment such as the generator, gearbox, and control system. Its bottom is fixedly connected to the upper rotating part of the yaw system by bolts, so that it can rotate together with the yaw system.

[0079] Furthermore, the tower provides the necessary height and support stability for the entire wind turbine from the ground to the air. The yaw system is securely connected to the transition section 400 at the top of the tower via its lower fixed components (such as the bearing outer ring). The nacelle assembly, as a single module, is mostly assembled and tested in the factory before being transported to the site. During installation, a large crane is used to lift the nacelle assembly to the top of the tower, align it with the upper slewing component of the yaw system (such as the bearing inner ring), and secure it in place. The electrical and hydraulic wiring for the entire wind turbine can be laid via ladders or passageways inside the tower.

[0080] This embodiment, by employing the aforementioned modular and detachable tower design, enables the towers supporting large wind turbine generators to overcome transportation bottlenecks and be applied in a wider range of geographical areas (such as mountainous regions and areas with limited road access). The convenient transportation and installation characteristics of the towers lower the overall construction threshold and timeline for wind power projects. Simultaneously, the reliable structural performance of the towers ensures the safe, stable, and efficient operation of the upper wind turbine generator sets, capturing wind energy and converting it into clean electricity. The detachable nature of the modular towers also facilitates the dismantling and site restoration of the wind turbine generator sets after their service life.

[0081] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0082] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A tower, characterized in that, include: Several support components are spaced apart along the axial direction of the tower; A plurality of base plate components are alternately stacked with the plurality of support components, and cooperate with the plurality of support components to form a cylindrical structure; Several connecting components are disposed between the support component and the substrate component, and the connecting components are used to detachably connect the support component and the substrate component.

2. The tower according to claim 1, characterized in that, The support assembly includes a plurality of support members, which are spaced apart circumferentially along the tower. Both ends of the support member are detachably connected to the corresponding base plate component via the connecting assembly.

3. The tower according to claim 2, characterized in that, The substrate component is composed of at least two substrates joined together.

4. The tower according to claim 2 or 3, characterized in that, The connection component includes: Several first connectors; The limiting cylinder and the support member are provided with a plurality of second connecting holes. The limiting cylinder has a limiting cavity inside. The end of the support member is limited to the limiting cavity. The limiting cylinder is detachably connected to the support member through the first connecting member passing through the second connecting holes. A flange is provided on the outer periphery of the opening at one end of the limiting cylinder. The flange and the base plate component are respectively provided with a plurality of first connecting holes. The flange is detachably connected to the base plate component through the first connecting hole via the first connecting member. Alternatively, the connection component may include: Several first connectors; A flange is fixed to the end of the support member, and the flange is detachably connected to the base plate component through the plurality of first connectors.

5. The tower according to claim 2 or 3, characterized in that, The connection component includes: Several second connectors; Several enclosing components are disposed in the gaps formed between two adjacent support members and two adjacent substrate members, and the enclosing components are detachably connected to the support members and the substrate members through the second connector.

6. The tower according to claim 5, characterized in that, The support member has connecting wings on both sides; the enclosing component includes: The closure is provided with two sides detachably connected to the corresponding connecting wings via the second connector; At least two bases are respectively disposed at both ends of the closure member, and the bases are detachably connected to the corresponding base plate components via the second connector.

7. The tower according to any one of claims 1-3, characterized in that, The diameter of the top of the cylindrical structure gradually decreases from bottom to top, and the top of the cylindrical structure is detachably provided with a transition section, which is used to connect with the yaw system of the wind turbine generator.

8. The tower according to claim 7, characterized in that, The bottom end of the cylindrical structure is the base plate component, and the base plate component at the bottom end is provided with a plurality of anchor bolt holes, which are used for connection with the foundation.

9. The tower according to claim 8, characterized in that, The tower also includes steel strands, one end of which is connected to the transition section and the other end is used to connect to the foundation.

10. A wind turbine generator set, characterized in that, include: The tower as described in any one of claims 1-9; A yaw system is located at the top of the tower; The nacelle assembly is located on top of the yaw system.

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