Novel stiffened steel tower structure and wind turbine generator system

Abstract

The application provides a new type of stiffened steel tower structure and a wind turbine generator set, and the new type of stiffened steel tower structure comprises a plurality of tower assembly components which can be assembled, each tower assembly component comprises a tower body, a plurality of annular reinforcing ribs connected to the inner wall of the tower body and a plurality of vertical reinforcing ribs, a plurality of first connecting components are arranged between two adjacent annular reinforcing ribs, a second connecting component is arranged at the intersection of the annular reinforcing rib and the vertical reinforcing rib, the two ends of the vertical reinforcing rib are respectively provided with a first butt plate and a second butt plate, and a detection device is further arranged between the first butt plate or the second butt plate and the vertical reinforcing rib. The first connecting component and the second connecting component can improve the connecting strength of the vertical reinforcing rib and the annular reinforcing rib with the tower body. The first butt plate and the second butt plate can improve the connecting strength of the adjacent tower assembly components, so that the reliability of the new type of stiffened steel tower structure is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fan tower drum, and particularly to a novel stiffened steel tower drum structure. BACKGROUND

[0002] In a wind power project, a fan tower drum is a support structure of a wind turbine generator, a steel tower drum is rolled from a steel plate, and the main function thereof is to support the weight of the generator and convert wind energy into electric energy.

[0003] The height of the steel tower drum is determined according to the size of the fan and the expected wind energy resources, and can reach tens of meters or even hundreds of meters. Therefore, the steel tower drum needs to have greater stiffness and strength to meet the design requirements.

[0004] To meet the above requirements, the diameter of the related tower drum steel tower is getting larger and larger, the wall thickness of the steel material is increasing, and the amount of steel material is increasing, which greatly increases the manufacturing and installation costs.

[0005] Therefore, a novel steel tower drum is needed to solve the above problems. SUMMARY

[0006] The summary part of the present application is used to introduce the concept in a simple form, which will be described in detail in the specific embodiment part. The summary part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] The present application provides a novel stiffened steel tower drum structure and a wind turbine generator to solve the technical problems mentioned in the background part.

[0008] In a first aspect, the present application provides a novel stiffened steel tower drum structure, comprising a plurality of tower drum assemblies that can be assembled, wherein,

[0009] Each of the tower drum assemblies comprises a tower drum body, a plurality of annular reinforcing ribs connected to the inner wall of the tower drum body, and a plurality of vertical reinforcing ribs, the plurality of annular reinforcing ribs are arranged in a vertical direction, and the plurality of vertical reinforcing ribs are arranged around the axis of the tower drum body;

[0010] A plurality of first connecting assemblies are arranged between adjacent two annular reinforcing ribs, the first connecting assemblies are buckled to the vertical reinforcing ribs and connected to the inner wall of the tower drum body;

[0011] A second connecting assembly is arranged at the intersection of the annular reinforcing rib and the vertical reinforcing rib, the second connecting assembly is buckled to the intersection and connected to the inner wall of the tower drum body;

[0012] The two ends of the vertical reinforcing rib are respectively provided with a first butt joint plate and a second butt joint plate, which are used for connecting with the second butt joint plate and the first butt joint plate of the adjacent tower drum assemblies.

[0013] The detection device is arranged between the first butt joint plate or the second butt joint plate and the vertical reinforcing rib, and the connection strength between the tower drum assemblies is determined according to the parameter information collected by the detection device.

[0014] Optionally, the first connecting assembly comprises a groove matched with the cross section of the vertical reinforcing rib, the bottom surface of the groove is connected with the upper surface of the vertical reinforcing rib, and the two side walls of the groove are connected with the tower drum body.

[0015] Optionally, the groove is spliced by two symmetrical first L-shaped plates, the first end of each first L-shaped plate is fixedly provided with a connecting plate, and the two connecting plates are tightly connected by bolts in the assembled state; the second end of each first L-shaped plate is connected with a first reinforcing plate extending outward, and the first reinforcing plate is connected with the tower drum body.

[0016] Optionally, the second connecting assembly comprises a cross groove matched with the intersection of the annular reinforcing rib and the vertical reinforcing rib, the bottom surface of the cross groove is connected with the upper surface of the intersection, and the side wall of the cross groove is connected with the tower drum body.

[0017] Optionally, the cross groove is spliced by four second L-shaped plates, the first end of each second L-shaped plate is connected with the first end of an inwardly extending third L-shaped plate, the second end of the third L-shaped plate is further connected with a fourth L-shaped plate; in the assembled state, the second L-shaped plate is connected with the side wall of the intersection; the third L-shaped plate is connected with the upper surface of the intersection; the fourth L-shaped plate is tightly connected with the adjacent two fourth L-shaped plates by bolts; the second end of the second L-shaped plate is connected with a second reinforcing plate extending outward, and the second reinforcing plate is connected with the tower drum body.

[0018] Optionally, an angle steel is welded at the two ends of each vertical reinforcing rib, and the angle steel is further welded with the inner wall of the tower drum body.

[0019] Optionally, the first butt joint plate comprises a first plate body fixedly provided on the upper end angle steel of the vertical reinforcing rib, and the upper end of the first plate body is fixedly provided with a plurality of protrusions.

[0020] Optionally, the second butt joint plate comprises a second plate body fixedly provided on the lower end angle steel of the vertical reinforcing rib, and the lower end of the second plate body is provided with a plurality of concave portions matched with the plurality of protrusions, and in the assembled state, the plurality of protrusions are inserted into the concave portions one by one.

[0021] Optionally, a first through hole is arranged on each of the protrusions; a second through hole is arranged on the second plate body and penetrates the inner recess; in the assembled state, a bolt passes through the first through hole and the second through hole, so that the first butt joint plate and the second butt joint plate are fastened and connected.

[0022] In a second aspect, the present application further provides a wind turbine generator set, comprising a wind turbine, a new type of stiffened steel tower structure and a foundation connected with each other, wherein the new type of stiffened steel tower structure is the new type of stiffened steel tower structure as described in any one of the embodiments of the first aspect.

[0023] The above-mentioned embodiments of the present application have the following beneficial effects: through the new type of stiffened steel tower structure of some embodiments of the present application, on the basis of the staggered arrangement of the plurality of annular reinforcing ribs and the plurality of vertical reinforcing ribs, the first connecting assembly can further enhance the connecting strength of the vertical reinforcing ribs. The second connecting assembly can further improve the connecting strength of the intersection point and the tower body, thereby improving the strength of each tower assembly.

[0024] The new type of stiffened steel tower structure is assembled by a plurality of tower assemblies, which provides convenience for material transportation and construction process. The above-mentioned first connecting plate and second connecting plate can further enhance the connecting strength of two adjacent tower assemblies on the basis of the commonly used flange connection, so as to improve the stability of the new type of stiffened steel tower structure as a whole, thereby improving the reliability of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0026] Figure 1 A sectional view of an embodiment of the wind turbine generator set of the present application;

[0027] Figure 2 A structural schematic view of an embodiment of the new type of stiffened steel tower structure of the present application;

[0028] Figure 3 A top view of the first connecting assembly of the present application;

[0029] Figure 4 A front view of the first connecting assembly of the present application;

[0030] Figure 5 A structural schematic view of an embodiment of the second connecting assembly of the present application;

[0031] Figure 6 Structure diagram of another embodiment of the second connecting assembly of the present application;

[0032] Figure 7 Structure diagram of an embodiment of the first docking plate of the present application;

[0033] Figure 8 Structure diagram of the first docking plate of the present application after installation;

[0034] Figure 9 Structure diagram of an embodiment of the second docking plate of the present application;

[0035] Figure 10 Structure diagram of the second docking plate of the present application after installation;

[0036] Figure 11 Structure diagram of an embodiment of the detection device of the present application.

[0037] Explanation of reference signs:

[0038] 1: tower body; 11: flange;

[0039] 2: annular reinforcing rib;

[0040] 3: vertical reinforcing rib; 31: angle steel;

[0041] 4: first connecting assembly; 41: first L-shaped plate; 42: connecting plate; 43: first reinforcing plate;

[0042] 5: second connecting assembly; 51: second L-shaped plate; 52: third L-shaped plate; 53: fourth L-shaped plate; 54: second reinforcing plate;

[0043] 61: first docking plate; 611: first plate body; 612: protruding part; 613: first through hole;

[0044] 62: second docking plate; 621: second plate body; 622: inner recessed part; 623: second through hole;

[0045] 7: wind turbine;

[0046] 8: foundation;

[0047] 91: telescopic part. DETAILED DESCRIPTION

[0048] The technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise explicitly and specifically limited. In addition, the terms "mounting", "connecting", and "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0052] First, please refer to Figure 1 and Figure 2 , Figure 1 is a sectional view of an embodiment of the wind turbine generator set of the present application; Figure 2 is a structural schematic diagram of an embodiment of the novel stiffened steel tower structure of the present application. As shown in Figure 1 and Figure 2 , the novel stiffened steel tower structure is assembled by a plurality of tower assembly components. The upper and lower ends of each tower assembly component can be provided with flanges 11, and the flanges 11 of adjacent two tower assembly components are fixedly connected by bolts. Those skilled in the art can determine the height and diameter of each of the above tower assembly components according to the height or diameter parameters of the novel stiffened steel tower structure.

[0053] Each tower section assembly comprises a tower body 1, a plurality of annular stiffeners 2 welded to the inner wall of the tower body 1, and a plurality of vertical stiffeners 3.

[0054] The plurality of annular stiffeners 2 are arranged in vertical direction with intervals. The plurality of vertical stiffeners 3 are arranged around the axis of the tower body 1. In actual work, the vertical stiffeners 3 are usually welded first, and then the annular stiffeners 2 are divided into a plurality of arc-shaped pieces and welded between adjacent vertical stiffeners 3. Therefore, the annular stiffeners 2 and the vertical stiffeners 3 form a plurality of intersection points. As an example, the annular stiffeners 2 and the vertical stiffeners 3 can be perforated H-beams.

[0055] It should be noted that the number and spacing of the annular stiffeners 2 and the vertical stiffeners 3 can be determined by the height and diameter of the tower body 1 by those skilled in the art.

[0056] In order to further enhance the connection strength between the vertical stiffeners 3 and the tower body 1, one or more first connection assemblies 4 can be arranged in the section of the vertical stiffener 3 between two adjacent annular stiffeners 2. In the assembled state, the first connection assembly 4 is clamped to the vertical stiffener 3 and welded to the inner wall of the tower body 1.

[0057] Next, please refer to Figure 3 and Figure 4 and continue to refer to Figure 2 , Figure 3 is a top view of the first connection assembly of the present application; Figure 4 is a front view of the first connection assembly of the present application. The first connection assembly 4 can comprise a groove, the shape of which is adapted to the cross section of the vertical stiffener 3. In the assembled state, the groove is clamped to the vertical stiffener 3, the bottom surface of the groove is engaged with the upper surface of the vertical stiffener 3, and the ends of the two side walls of the groove are welded to the tower body 1.

[0058] Further, the groove can also be spliced by two symmetrically arranged first L-shaped plates 41. Next, take the first L-shaped plate 41 on the left side in Figure 3 and Figure 4 as an example for description. The first end (the right end in Figure 4 ) of the first L-shaped plate 41 is fixedly provided with a connecting plate 42. The second end (the left end in Figure 4 ) of the first L-shaped plate 41 is fixedly provided with a first reinforcing plate 43 extending outward. As Figure 2As shown, in the assembled state, the two connecting plates 42 are tightly engaged by bolts, so that the two first L-shaped plates 41 are spliced to form the groove. Each first L-shaped plate 41 is engaged with the upper surface and the side surface of the vertical reinforcing rib 3, respectively. The first reinforcing plate 43 is welded to the inner wall of the tower body 1.

[0059] By splitting the groove of the first connecting assembly 4, the adaptability of the first connecting assembly 4 can be improved. The reason is that in actual construction, the width of the vertical reinforcing rib 3 may have errors, or welding slag or debris may be left on both sides, which may cause the groove to not be perfectly fitted on the vertical reinforcing rib 3. By tightly engaging the two connecting plates 42 by bolts, the width of the groove can be adaptively adjusted, thereby improving the flexibility of the first connecting assembly 4.

[0060] Next, refer to Figure 5 and Figure 6 and continue to refer to Figure 2 , Figure 5 is a structural schematic view of an embodiment of the second connecting assembly of the present application; Figure 6 is a structural schematic view of another embodiment of the second connecting assembly of the present application; as Figure 2 shown, the intersection of the annular reinforcing rib 2 and the vertical reinforcing rib 3 is provided with a second connecting assembly 5, which is fitted on the intersection and connected with the inner wall of the tower body 1. As Figure 5 described, the second connecting assembly 5 can include a cross-shaped groove adapted to the shape of the intersection, in the assembled state, the bottom surface of the cross-shaped groove is engaged with the upper surface of the intersection, and the top end of the side wall of the cross-shaped groove is welded to the tower body 1.

[0061] Further, the cross-shaped groove can be spliced by four second L-shaped plates 51. As Figure 6 shown, the first end (the upper end shown) of each second L-shaped plate 51 is connected with the first end of a third L-shaped plate 52 (the outer wall of the third L-shaped plate 52 shown), which extends towards the middle part of the intersection. The second end (the lower end shown) of the second L-shaped plate 51 is connected with a second reinforcing plate 54 formed by extending outward, which is welded to the tower body 1. Figure 6 Figure 6 The first end (the upper end shown) of each second L-shaped plate 51 is connected with the first end of a third L-shaped plate 52 (the outer wall of the third L-shaped plate 52 shown), which extends towards the middle part of the intersection. The second end (the lower end shown) of the second L-shaped plate 51 is connected with a second reinforcing plate 54 formed by extending outward, which is welded to the tower body 1. Figure 6 Figure 6 The first end (the upper end shown) of each second L-shaped plate 51 is connected with the first end of a third L-shaped plate 52 (the outer wall of the third L-shaped plate 52 shown), which extends towards the middle part of the intersection. The second end (the lower end shown) of the second L-shaped plate 51 is connected with a second reinforcing plate 54 formed by extending outward, which is welded to the tower body 1.​​

[0062] Similarly, by setting the cross recess of the second connecting assembly 5 in two parts, the adaptability of the second connecting assembly 5 can be improved. The reason is that in actual construction, the size of the intersection point may not be uniform due to the presence of welds, residual welding slag or debris. As a result, the cross recess may not be able to be perfectly fitted onto the intersection point. By locking the four fourth L-shaped plates 53 with bolts, the size of the cross recess can be adaptively adjusted, thereby improving the flexibility of the second connecting assembly 5.

[0063] The vertical reinforcing rib 3 is provided with a first abutting plate 61 and a second abutting plate 62 at both ends thereof, respectively, for connecting with the second abutting plate 62 and the first abutting plate 61 of the tower drum assembly above and below. Figure 7 、 Figure 8 、 Figure 9 and Figure 10 are described below, Figure 7 is a structural schematic view of an embodiment of the first abutting plate of the present application; Figure 8 is a structural schematic view of the first abutting plate after installation; Figure 9 is a structural schematic view of an embodiment of the second abutting plate of the present application; Figure 10 is a structural schematic view of the second abutting plate after installation.

[0064] As shown in Figure 7 , the first abutting plate 61 comprises a first plate body 611 and three protruding portions 612 provided on the upper end of the first plate body 611. A first through hole 613 is provided on each protruding portion 612. As shown in Figure 9 , the second abutting plate 62 comprises a second plate body 621 corresponding in shape to the first plate body 611. Three inner recesses 622 are formed on the bottom of the second plate body 621, which are adapted to the protruding portions 612. Three second through holes 623 are also formed on the second plate body 621, each of which passes through a corresponding inner recess 622.

[0065] Figure 8 shows the top of the tower drum assembly below, Figure 10 shows the bottom of the tower drum assembly above. As shown in Figure 8 and Figure 10 , an angle steel 31 can be provided at both ends of the vertical reinforcing rib 3. The angle steel 31 is welded to the vertical reinforcing rib 3 and the inner wall of the tower drum body 1, respectively, further reinforcing the vertical reinforcing rib 3 and providing a basis for the installation of the first abutting plate 61 and the second abutting plate 62.

[0066] That is to say, the angle steel 31 above the tower tube assembly is welded to the bottom of the first plate body 611 except the topmost and bottommost tower tube assemblies, and the angle steel 31 below the tower tube assembly is welded to the upper end of the second plate body 621. The first abutment plate 61 of one tower tube assembly is connected to the second abutment plate 62 of the adjacent tower tube assembly above, and the second abutment plate 62 of the tower tube assembly is connected to the first abutment plate 61 of the adjacent tower tube assembly below, so as to further improve the connection strength between the tower tube assemblies on the basis of the flange 11 connection.

[0067] In the case of abutting the flanges 11 of the two adjacent tower tube assemblies, the three protrusions 612 are inserted into the three inner recesses 622 one by one, and the first abutment plate 61 and the second abutment plate 62 can be locked by the three bolts passing through the first through hole 613 and the second through hole 623.

[0068] It should be noted that the number of protrusions 612 and inner recesses 622 is not fixed, and those skilled in the art can adjust it according to the actual situation. In addition, the first abutment plate 61 and the second abutment plate 62 can also be exchanged in the direction of the vertical reinforcing rib 3, and the first abutment plate 61 can also be arranged below the tower tube assembly.

[0069] That is to say, in the actual installation and splicing process, the flanges 11 of the two tower tube assemblies need to be abutted, and the first abutment plate 61 and the second abutment plate 62 also need to be abutted, so as to increase the difficulty of installation.

[0070] In addition, after the abutment of the adjacent tower tube assemblies, it is difficult for the workers to detect whether the bolts of the connecting flange 11 are loose or fallen off.

[0071] In order to solve the above two technical problems, each tower tube assembly further comprises a detection device. The detection device can be arranged between the first abutment plate 61 and the angle steel 31, or between the second abutment plate 62 and the angle steel 31, and those skilled in the art can adjust it according to the actual situation.

[0072] The detection device can include a telescopic portion and a controller in communication connection with the telescopic portion. Next, taking the case that the detection device is arranged between the first abutment plate 61 and the angle steel 31 as an example for description. Figure 11

[0073] Figure 11 The structural schematic diagram of one embodiment of the detection device of the present application is shown in the accompanying drawings, Figure 11 ​As shown, the telescopic end of the telescopic part 91 can be fixedly connected with the bottom of the first butt plate 61, and the fixed end of the telescopic part 91 is fixedly connected with the angle steel 31. Before the butt joint of the two tower barrel assemblies, the controller can control the telescopic part 91 to retract. At this time, the workers can first connect the adjacent flanges 11. Since the telescopic part 91 is retracted, even if the flanges 11 are connected, there is still a gap between the first butt plate 61 and the second butt plate 62.

[0074] Next, the controller controls the telescopic part 91 to extend, and the butt joint between the first butt plate 61 and the butt plate 62 is completed. The controller can be a PLC (Programmable Logic Controller). The telescopic part 91 can be a hydraulic cylinder. In this way, the butt joint installation of the flanges 11 and the butt joint installation of the first butt plate 61 and the butt plate 62 are carried out separately, thereby reducing the difficulty of butt joint of the two tower barrel assemblies.

[0075] The telescopic part 91 can also be provided with a travel sensor for monitoring the extension distance of the telescopic end, and the travel sensor is in communication connection with the controller. When the telescopic part 91 is a hydraulic cylinder, a pressure transmitter can also be provided on the oil circuit, and the pressure transmitter can transmit the oil circuit pressure to the controller. During installation, the controller first controls the telescopic end to extend by a preset distance, and then determines whether the oil circuit pressure reaches a preset pressure range. If the oil circuit pressure is outside the above-mentioned preset pressure range, the extension distance of the telescopic end is adjusted, and the adjusted initial extension distance is transmitted to the controller.

[0076] After the butt joint of the first butt plate 61 and the butt plate 62 is completed, the travel sensor and the pressure transmitter can transmit the collected initial extension distance of the telescopic end and the oil circuit pressure to the controller. Each detection device of each layer can be labeled, so that the controller or a data processing device in communication connection with the controller can generate a correspondence table of the label of the detection device and the corresponding initial extension distance value and oil circuit pressure value.

[0077] If a bolt connecting the flanges 11 is loose or falls off, the corresponding flanges 11 are prone to have a tendency to have a gap under the influence of external wind or structural vibration. In this way, the telescopic end will be subjected to tension. In this process, the oil circuit pressure will increase, and the telescopic part 91 can still play a role in hindering the generation of the gap. When the oil circuit pressure exceeds the preset pressure value, the controller can send a first alarm information to the central control room of the wind turbine generator. The first alarm information can be displayed on the screen of the central control room. By determining the label corresponding to the telescopic part 91, the position corresponding to the gap tendency can be determined.

[0078] When the trend of the above-mentioned gap gradually increases, the telescopic end is pulled, and the stroke sensor can detect the actual extension distance of the telescopic end. When the difference between the initial extension distance and the actual extension distance exceeds the preset safety distance, the controller can send second alarm information to the control room, and the second alarm information can be warned by means of flashing of the alarm lamp or vibration of the buzzer.

[0079] In this way, by setting the detection device, the position where the gap trend appears or the gap has appeared can be obtained, and the safety of the new stiffened steel tower structure is improved.

[0080] Finally, please refer to Figure 1 The application also provides a wind turbine generator set 7, which comprises, from top to bottom, a wind turbine generator 7, a new stiffened steel tower structure, and a foundation 8. The new stiffened steel tower structure is the new stiffened steel tower structure described in the above embodiments. The wind turbine generator set can be newly built or an existing wind turbine generator set reinforced by the new stiffened steel tower structure. The post-anchoring of the steel bars is performed on the existing foundation 8, and then the concrete is poured to form a new foundation column pier, which is rigidly connected with the vertical reinforcing bars 3, thereby forming a reinforced structural system.

[0081] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A novel stiffened steel tower section, characterised in that, The application relates to a tower structure, comprising a plurality of tower cylinder assemblies which can be assembled, wherein, each of the tower cylinder assemblies comprises a tower cylinder body, a plurality of annular reinforcing ribs which are arranged in a vertical direction and are spaced apart, and a plurality of vertical reinforcing ribs which are arranged around an axis of the tower cylinder body; a plurality of first connecting assemblies are arranged between two adjacent annular reinforcing ribs, the first connecting assemblies are buckled to the vertical reinforcing ribs and are connected to the inner wall of the tower cylinder body; a second connecting assembly is arranged at the intersection of the annular reinforcing rib and the vertical reinforcing rib, the second connecting assembly is buckled to the intersection and is connected to the inner wall of the tower cylinder body; first and second abutting plates are arranged at the two ends of the vertical reinforcing rib respectively, and are used for connecting the second and first abutting plates of the tower cylinder assemblies which are arranged above and below; a detection device is further arranged between the first or second abutting plate and the vertical reinforcing rib, and parameter information collected by the detection device is used for determining the connecting strength between the tower cylinder assemblies; the first connecting assembly comprises a groove which is matched with the cross section of the vertical reinforcing rib, the bottom surface of the groove is jointed to the upper surface of the vertical reinforcing rib, and the two side walls of the groove are connected to the tower cylinder body; the groove is spliced by two symmetrically arranged first L-shaped plates, a connecting plate is fixedly arranged at the first end of each first L-shaped plate, the two connecting plates are tightly jointed by bolts in the assembled state, a first reinforcing plate which extends outward is connected to the second end of each first L-shaped plate, and the first reinforcing plate is connected to the tower cylinder body; the second connecting assembly comprises a cross-shaped groove which is matched with the intersection of the annular reinforcing rib and the vertical reinforcing rib, the bottom surface of the cross-shaped groove is jointed to the upper surface of the intersection, and the side wall of the cross-shaped groove is connected to the tower cylinder body; the cross-shaped groove is spliced by four second L-shaped plates, the first end of each second L-shaped plate is connected to the first end of a third L-shaped plate which extends inward, the second end of the third L-shaped plate is further connected to a fourth L-shaped plate, the second end of each second L-shaped plate is connected to a second reinforcing plate which extends outward, and the second reinforcing plate is connected to the tower cylinder body.

2. The novel stiffened steel tower structure of claim 1, wherein, an angle steel is welded to each of the two ends of the vertical reinforcing rib, and the angle steel is further welded to the inner wall of the tower cylinder body.

3. The novel stiffened steel tower structure of claim 1, wherein, the first abutting plate comprises a first plate body which is fixedly arranged at the upper end angle steel of the vertical reinforcing rib, and a plurality of protruding portions are fixedly arranged at the upper end of the first plate body.

4. The novel stiffened steel tower structure of claim 3, wherein, the second abutting plate comprises a second plate body which is fixedly arranged at the lower end angle steel of the vertical reinforcing rib, and a plurality of concave portions which are matched with the plurality of protruding portions are arranged at the lower end of the second plate body, and in the assembled state, the plurality of protruding portions are inserted into the concave portions one by one.

5. The novel stiffened steel tower structure of claim 4, wherein, Each of the protruding portions is provided with a first through hole; the second plate body is provided with a second through hole penetrating the inner recess, in the assembled state, a bolt passes through the first through hole and the second through hole, so that the first butt joint plate and the second butt joint plate are fastened and connected.

6. A wind power unit, characterized in that A wind turbine comprising a wind turbine generator, a new type of stiffened steel tower structure and a foundation, wherein the new type of stiffened steel tower structure is a new type of stiffened steel tower structure according to any one of claims 1-5.

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