Combined tower structure for a wind turbine
The combined tower structure for wind turbines addresses structural and transport challenges through a segmented design with a TMD damping arrangement and internal tensioning mechanism, enhancing stability and reducing maintenance costs.
Patent Information
- Application Number
- DE202025105668
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2025-07-14
- Filing Date
- 2025-09-22
- Publication Date
- 2025-12-11
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Existing wind turbine tower technologies face issues such as structural deficiencies, high costs, transport limitations, and poor dynamic performance, including microcracking, resonance, and collapse risks, particularly in high-power and tall wind turbines.
A combined tower structure comprising a square support frame, multi-part corrugated and cylindrical bodies with connecting flanges, a TMD damping arrangement, steel wire rope internal tensioning mechanism, and a sealing mechanism, utilizing specially shaped plates and trapezoidal connectors for enhanced stiffness and stability, and a segmented design for easier transport.
The combined tower structure improves structural integrity, reduces resonance, enhances stability, and facilitates easier transport and installation, while reducing maintenance costs and increasing safety factors by up to six times.
Smart Images
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Abstract
Description
TECHNICAL AREA
[0001] The present utility model relates to the technical field of wind power generation tower structures, in particular to a combined tower structure for a wind turbine. STATE OF THE ART
[0002] With the acceleration of the transformation of the global energy structure, wind turbines are evolving towards high power output and greater height. The single-unit capacity of offshore wind turbines is rapidly increasing from 8-20 MW to 30-50 MW, and the single-unit capacity of onshore wind towers is transforming from 5 MW to 30 MW. To access high-quality wind resources at heights of 60-700 meters, mainstream wind farms have required tower heights to increase from the current 120-160 meters to 190 meters and to evolve to more than 360 meters to ensure the safe operation of blades with a diameter of 300 meters and a wheel diameter of 630 meters in the high-quality wind range.
[0003] Existing wind turbine tower technology suffers from problems such as structural deficiencies, high costs, and certain transport limitations. For example, the junction between the concrete and steel of a steel-concrete composite tower is prone to microcracking and exhibits poor dynamic performance. There is a risk of resonance and collapse. Transporting conventional cylindrical steel towers by road is very difficult. To meet stiffness requirements, the wall thickness of the middle and bottom steel plates of existing steel towers is only 60-90 mm, representing a significant waste of material. Therefore, it is urgently necessary to design a composite tower structure for wind turbines to address the aforementioned problems. CONTENTS OF THE PRESENT USE SAMPLE
[0004] The purpose of the present utility model is to provide a combined tower structure for a wind turbine in order to solve the aforementioned deficiencies in the prior art.
[0005] To achieve the above-mentioned purposes, the following technical solutions are provided in accordance with this utility model: Combined tower structure for a wind turbine, comprising a square support frame, a multi-part corrugated body, and a multi-part cylindrical body, wherein a connecting flange is arranged on the top of the square support frame and on the bottom of the multi-part corrugated body, respectively, wherein the multi-part cylindrical body is attached and fastened to the top of the multi-part corrugated body via a flange, wherein the multi-part corrugated body comprises a one-piece corrugated body, wherein the multi-part corrugated body is formed by splicing several one-piece corrugated bodies, wherein several arc plates I are arranged on one side of the one-piece corrugated body, and wherein a TMD damping arrangement is arranged inside the multi-part corrugated body. wherein the multi-part cylindrical body has a monolithic arc plate, wherein the multi-part cylindrical body is formed by splicing several monolithic arc plates, wherein several arc plates II are arranged on the inner diameter of the monolithic arc plate, wherein a trapezoidal connecting piece is arranged on both sides of the monolithic arc plate and the one-piece corrugated body, wherein a circumferential flange is arranged on the upper surface of arc plate I and arc plate II, wherein a steel wire rope internal tensioning mechanism is arranged between the circumferential flange and the trapezoidal connecting piece, and wherein a top flange is arranged on the upper surface of the multi-part cylindrical body.
[0006] As a preferred solution of the present utility model, it is provided that the TMD damping arrangement has a counterweight block which is arranged inside the multi-part corrugated body, wherein several tension cables are arranged on the top of the counterweight block, wherein the other end of the tension cable is attached by bolts to a flange on the top of the multi-part corrugated body, wherein several viscous dampers are arranged around the counterweight block, wherein one end of the viscous damper is attached to the inner wall of the multi-part corrugated body.
[0007] A preferred solution of the present utility model is provided that the circumferential flange has several arcuate flange pieces, wherein an arcuate flange ring is arranged on the upper surface of the arcuate flange piece, wherein a stiffening rib is arranged between the arcuate flange piece and the arcuate flange ring, wherein a slot and tenon connection is arranged at each of the two ends of the arcuate flange piece, and wherein the two arcuate flange pieces are attached and fastened by means of a slot and tenon connection.
[0008] The preferred solution of the present utility model is that the steel wire rope internal tensioning mechanism consists of a steel wire rope, an adjusting screw, an adjusting nut and a screw, wherein the screws are arranged in the mounting holes of the two trapezoidal connecting pieces, wherein the steel wire rope is arranged in a gap between the two trapezoidal connecting pieces, wherein one end of the steel wire rope is fastened by means of a screw, wherein the adjusting screw is arranged at the other end of the steel wire rope, wherein the adjusting screw passes through the arc-shaped flange ring, and wherein the adjusting nut fits through a thread with the adjusting screw.
[0009] The preferred solution of the present utility model is that the two trapezoidal connecting pieces are fastened together by several bolts, with the trapezoidal connecting piece acting not only as a connecting piece but also as a trapezoidal stiffening rib.
[0010] As a preferred solution of the present utility model, it is provided that the steel wire rope internal tensioning mechanism is arranged within the multi-part wave body or the multi-part cylinder body.
[0011] A preferred solution of the present utility model is provided that several dampers are arranged at the connection between the square support frame and the multi-part corrugated body, wherein a sealing disc is arranged between the connecting flange and the connecting surface of the square support frame and the multi-part corrugated body, wherein the sealing disc consists of a composite of polysulfide sealing adhesive and EPDM adhesive strips.
[0012] As a preferred solution of the present utility model, it is provided that trapezoidal longitudinal ribs are arranged on the inside of the multi-part cylindrical body, wherein the trapezoidal longitudinal ribs are connected to the arch plate II to form a reinforcing grid, wherein the longitudinal flange is designed as a trapezoidal surface back, wherein the lightweight steel keel structure formed by the longitudinal flange and the inner ring adjusting flange is used to increase the safety factor against collapse of this tower by more than 6 times.
[0013] As a preferred solution of the present utility model, it is provided that the one-piece corrugated body and the monolithic arch plate each consist of specially shaped plates, with several reinforcing bars arranged between the main bars of the square support frame, the square support frame being equipped with an inclined truss structure with a square space, the inclined main tube being designed as a straight-seam welded steel tube DN500-1500mm with thin wall and weather resistance, a steel wire rope tensioning mechanism being arranged inside the tube and high-quality concrete of C50 or higher being cast.
[0014] In the above technical solution, the combined tower structure for a wind turbine according to the present utility model has the following advantageous effects: (1) The present utility model is equipped with a multi-part corrugated body whose bending, shear, and torsional strength is superior to that of a conventional cone, thus effectively reducing the risk of tower collapse under extreme operating conditions such as typhoons. For single-piece corrugated bodies and monolithic arch plates, specially shaped plates are used which exhibit good corrosion resistance and durability and can adapt to different natural environments in order to reduce subsequent maintenance costs. (2) The present utility model is equipped with a circumferential flange, an internal steel wire rope tensioning mechanism, and a trapezoidal connector to increase the stiffness of the tower body and to improve the fatal defects of the flexible wind turbine tower. The structural connection strength is further enhanced by the design of the internal steel wire rope tensioning mechanism. (3) The present utility model is equipped with a TMD damping arrangement, which significantly suppresses vibration transmission and improves the stability of the tower body in order to reduce the number of resonance shutdowns. The sealing washer consists of a composite of polysulfide sealing adhesive and EPDM adhesive strips to improve the tightness of the connection. This effectively prevents the ingress of rain, dust, and the like into the interior of the tower, thus protecting the internal components from erosion. (4) The present utility model is equipped with a one-piece corrugated body and a monolithic arch plate and features a multi-part spliced structure. This segmented design reduces the volume and weight of the individual parts, making transport more convenient in complex terrain and thus reducing transport difficulties and costs. At the same time, a quick and stable connection for the spliced structure is achieved through trapezoidal connectors and other components, thereby improving installation efficiency and reducing construction time. BRIEF DESCRIPTION OF THE DRAWING
[0015] To clarify the embodiments of the present application or the technical solutions in the prior art, the drawings that must be used in the embodiments are briefly described below. It is obvious that the drawings in the following description represent only some of the embodiments described in the present utility model. Other drawings can also be obtained by a person skilled in the art from these drawings. Fig. Figure 1 is a perspective view of the structure of a tower of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 2 is a sectional view of the structure of a multi-part corrugated body of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 3 is a perspective view of the structure of a one-piece corrugated body of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 4 is a perspective view of the structure of a multi-part cylindrical body of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 5 is a perspective view of the structure of a monolithic arch plate of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 6 is a top view of the structure of a multi-part cylindrical body of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 7 is a perspective view of the structure of a circumferential flange of a combined tower structure for a wind turbine according to an embodiment of the present utility model. Fig. Figure 8 is a partially enlarged representation of the structure in Fig. 6 of a combined tower structure for a wind turbine according to an embodiment of the present utility model. DETAILED DESCRIPTION
[0016] In order for the person skilled in the art to better understand the technical solutions of the present utility model, the present utility model is described in more detail below in conjunction with the drawings.
[0017] Combined tower structure for a wind turbine according to the embodiment of the present utility model, comprising a square support frame 1, a multi-part corrugated body 2, and a multi-part cylindrical body 3, wherein a connecting flange 6 is arranged on the top of the square support frame 1 and on the bottom of the multi-part corrugated body 2, respectively, wherein the multi-part cylindrical body 3 is attached and fastened to the top of the multi-part corrugated body 2 via a flange, wherein the multi-part corrugated body 2 comprises a one-piece corrugated body 21, wherein the multi-part corrugated body 2 is formed by splicing several one-piece corrugated bodies 21, wherein several arc plates I 22 are arranged on one side of the one-piece corrugated body 21, wherein a TMD damping arrangement 4 is arranged inside the multi-part corrugated body 2, and wherein the multi-part cylindrical body 3 has a monolithic arc plate 31.wherein the multi-part cylindrical body 3 is formed by splicing several monolithic arc plates 31, wherein several arc plates II 32 are arranged on the inner diameter of the monolithic arc plate 31, wherein a trapezoidal connecting piece 5 is arranged on both sides of the monolithic arc plate 31 and the one-piece corrugated body 21, wherein a circumferential flange 9 is arranged on the upper surface of arc plate I 22 and arc plate II 32, wherein a steel wire rope internal tensioning mechanism 7 is arranged between the circumferential flange 9 and the trapezoidal connecting piece 5, wherein an upper flange 8 is arranged on the top of the multi-part cylindrical body 3, as shown in , Fig. 1 to Fig. 8 shown.
[0018] In the present embodiment, a connecting flange 6 is arranged on the top of the square support frame 1 and on the bottom of the multi-part corrugated body 2, respectively, wherein the multi-part cylindrical body 3 is attached and fastened to the top of the multi-part corrugated body 2 via a flange, wherein the multi-part corrugated body 2 comprises a one-piece corrugated body 21, wherein the one-piece corrugated body 21 and the monolithic arc plate 31 each consist of specially shaped plates with respect to the materials and processes of the one-piece corrugated body 21 and the monolithic arc plate 31, the surface of which is passivated without galvanizing or painting, thereby improving the corrosion resistance by 50% and extending the service life to more than 30 years, wherein the multi-part corrugated body 2 is formed by splicing several one-piece corrugated bodies 21.wherein several arc plates I 22 are arranged on one side of the one-piece corrugated body 21, the curvature of the arc plate 122 being 30°-60°, the thickness of which decreases stepwise with the corrugated body from bottom to top in order to be screwed to the circumferential flange 9 to form a closed reinforcing ring, thereby improving the torsional stiffness.
[0019] In particular, it is provided that the multi-part cylindrical body 3 has a monolithic arc plate 31, wherein the multi-part cylindrical body 3 is formed by splicing several monolithic arc plates 31, with several arc plates II 32 arranged on the inner diameter of the monolithic arc plate 31, the arc plate II 32 intersecting vertically with the trapezoidal connecting piece 5, thus improving the equivalent stiffness of the multi-part cylindrical body 3, with a trapezoidal connecting piece 5 arranged on both sides of the monolithic arc plate 31 and the one-piece corrugated body 21. Specific design of the trapezoidal connecting piece 5: The trapezoidal connecting piece 5 is designed as a trapezoid with asymmetrical sides. Use of the half-galvanizing, half-welding process: 50% of the length is welded at the seam, the remainder is bolted with high-strength M30 bolts.The anti-detachment adhesive is applied to ensure the bond strength and prevent weld stress concentrations. Furthermore, a top flange 8 is provided on the upper side of the multi-part cylinder body 3.
[0020] In the present embodiment, a TMD damping arrangement 4 is provided within the multi-section corrugated body 2, wherein the TMD damping arrangement 4 comprises a counterweight block 41 which is arranged within the multi-section corrugated body 2, the mass of the counterweight block 41 being 1 to 3% of the total mass of the top of the tower, which is cast with high-density concrete and encased in steel plates to prevent corrosion, wherein several tension cables 42 are arranged on the top of the counterweight block 41, the other end of the tension cable 42 being bolted to a flange on the top of the multi-section corrugated body 2, the tension cable 42 being an unconnected steel strand with a diameter of 20-30 mm, to which 24 viscous dampers 43 are associated, so that a passive shock absorption system is formed at a height of 150 m, thereby reducing the vibration amplitude of the tower by more is reduced by more than 60%,wherein several viscous dampers 43 are arranged around the counterweight block 41, wherein one end of the viscous damper 43 is attached to the inner wall of the multi-part corrugated body 2.
[0021] In the present embodiment, a circumferential flange 9 is arranged on the upper surface of both the arc plate I 22 and the arc plate II 32, the circumferential flange 9 being offset and attached to the joint of the arc plate, the circumferential flange 9 having several arc-shaped flange pieces 91, an arc-shaped flange ring 94 being arranged on the upper surface of the arc-shaped flange piece 91, a stiffening rib 92 being arranged between the arc-shaped flange piece 91 and the arc-shaped flange ring 94, a slotted and tenon connection 93 being arranged at each of the two ends of the arc-shaped flange piece 91, the two arc-shaped flange pieces 91 being attached and fastened by means of a slotted and tenon connection 93.
[0022] In the present embodiment, it is provided that a steel wire rope internal tensioning mechanism 7 is arranged between the circumferential flange 9 and the trapezoidal connecting piece 5, wherein the steel wire rope internal tensioning mechanism 7 consists of a steel wire rope 71, an adjusting screw 72, an adjusting nut 73 and a screw 74.
[0023] In particular, it is provided that the screws 74 are arranged in the mounting holes of the two trapezoidal connecting pieces 5, wherein the steel wire rope 71 is arranged in a gap between the two trapezoidal connecting pieces 5, wherein the steel wire rope 71 is selected to be a galvanized steel rope with a diameter of 16-20 mm, in which every second layer is arranged offset by 45° to avoid superposition of stresses, wherein one end of the steel wire rope 71 is fastened by means of a screw 74, wherein the adjusting screw 72 is arranged at the other end of the steel wire rope 71, wherein the adjusting screw 72 passes through the arc-shaped flange ring 94, wherein the adjusting screw 72 is made of 40Cr alloy steel, and wherein the adjusting nut 73 fits through a thread with the adjusting screw 72.The adjusting nut 73 is designed as a double nut for loosening protection, so that the preload force can be set to 200-300 kN using a torque wrench, thereby controlling the splice gap between the multi-part shaft body 2 and the multi-part cylinder body 3 within 0.5 mm to improve the overall torsional stiffness.
[0024] In the present embodiment, it is provided that the two trapezoidal connecting pieces 5 are fastened together by several bolts, wherein the trapezoidal connecting piece 5 acts not only as a connecting piece, but also as a trapezoidal stiffening rib.
[0025] In the present embodiment, the steel wire rope internal tensioning mechanism 7 is arranged within the multi-part wave body 2 or the multi-part cylinder body 3.
[0026] In the present embodiment, it is provided that several dampers are arranged at the connection between the square support frame 1 and the multi-part corrugated body 2, wherein a sealing disc is arranged between the connecting flange 6 and the connecting surface of the square support frame 1 and the multi-part corrugated body 2, wherein the sealing disc consists of a composite of polysulfide sealing adhesive and EPDM adhesive strips.
[0027] In the present embodiment, it is provided that 3 trapezoidal longitudinal ribs are arranged on the inside of the multi-part cylindrical body, wherein the trapezoidal longitudinal ribs are connected to the arched plate II 32 to form a reinforcing grid, wherein the longitudinal flange is designed as a trapezoidal surface back, wherein the lightweight steel keel structure formed by the longitudinal flange and the inner ring adjusting flange is used to increase the safety factor against collapse of this tower by more than 6 times.
[0028] In the present embodiment, the one-piece corrugated body 21 and the monolithic arch plate 31 each consist of specially shaped plates, thereby effectively reducing corrosion of the tower body due to environmental influences, with several reinforcing bars 11 arranged between the main bars of the square support frame 1, the square support frame 1 being equipped with an inclined truss structure with a square space, the inclined main tube being designed as a straight-seam welded steel tube DN500-1500mm with thin walls and weather resistance, a steel wire rope tensioning mechanism being arranged inside the tube and high-quality concrete of C50 or higher being cast to improve the buckling strength of the inclined main tube.
[0029] Work steps: I. The main bars of the square support frame 1 are assembled with the square space according to the slanted truss structure, the main bars being connected and fastened to each other by reinforcing bars 11, the inclined main tube being made of a straight-seam welded steel tube with weather resistance, a steel wire rope tensioning mechanism being arranged inside the tube and high-quality concrete of C50 or higher being cast. II. Several one-piece shaft bodies 21 are prepared for splicing by means of trapezoidal connecting pieces 5 on both sides. The trapezoidal connecting pieces 5 of adjacent one-piece shaft bodies 21 are fastened to one another with several bolts to form a multi-piece shaft body 2. After splicing, a TMD damping arrangement 4 is installed inside the multi-piece shaft body 2. III. After splicing the multi-part corrugated bodies 2 is complete, the connecting flange 6 on the underside is connected to the connecting flange 6 on the top side of the square support frame 1. A damper and a sealing washer, consisting of a composite of polysulfide sealing adhesive and EPDM adhesive strips, are arranged at the connection. The connecting bolts are then fastened. IV. A circumferential flange 9 is installed on the upper surface of the arched plate I 22 of the multi-part corrugated body 2 and subsequently fastened by bolts. An internal steel wire rope tensioning mechanism 7 is arranged between the circumferential flange 9 and the trapezoidal connecting piece 5 and is tensioned for adjustment by means of an adjusting nut 73. V. Several monolithic arch plates 31 are prepared for splicing by means of trapezoidal connecting pieces 5 on both sides. The trapezoidal connecting pieces 5 of adjacent monolithic arch plates 31 are fastened to one another with several bolts to form a multi-part cylindrical body 3. A circumferential flange 9 is installed on the upper surface of the arch plate 32 in the same manner as the circumferential flange 9 on the multi-part corrugated body 2. The spliced multi-part cylindrical body 3 is attached and fastened to the multi-part corrugated body 2 by means of a flange on its underside and a flange on its upper side. VI. A top flange 8 is installed on the top of the multi-part cylinder body 3 and a secure connection is ensured to complete the installation of the entire combined tower structure for a wind turbine.
[0030] Certain exemplary embodiments of the present utility model have been described above only with reference to the explanation. It is understood that the described embodiments can be modified in various ways for a person skilled in the art without deviating from the spirit and scope of the present utility model. The above drawings and descriptions are therefore illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present utility model. Reference symbol list: 1 Square support frame; 2 Multi-part corrugated body; 3 Multi-part cylinder body; 4 TMD damping arrangement; 5 Trapezoidal connector; 6 Connecting flange; 7 Steel wire rope internal tensioning mechanism; 8 Top flange; 9 Circumferential flange; 11 Reinforcing rod; 21 One-piece corrugated body; 22 Arch plate I; 31 Monolithic arch plate; 32 Arch plate II; 41 Counterweight block; 42 tow rope; 43 Viscose dampers; 71 steel wire rope; 72 Adjusting screw; 73 Adjusting nut; 74 screw; 91 Arc-shaped flange piece; 92 stiffening rib; 93 Mortise and tenon joint; 94 Arc-shaped flange ring.
Claims
[1] Combined tower structure for a wind turbine, comprising a square support frame (1), a multi-part corrugated body (2) and a multi-part cylindrical body (3), characterized by, wherein a connecting flange (6) is arranged on the top of the square support frame (1) and on the bottom of the multi-part wave body (2), respectively, wherein the multi-part cylindrical body (3) is attached and fastened to the top of the multi-part wave body (2) via a flange, wherein the multi-part wave body (2) comprises a one-piece wave body (21), wherein the multi-part wave body (2) is formed by splicing several one-piece wave bodies (21), wherein several arc plates I (22) are arranged on one side of the one-piece wave body (21), wherein a TMD damping arrangement (4) is arranged inside the multi-part wave body (2), wherein the multi-part cylindrical body (3) has a monolithic arc plate (31), wherein the multi-part cylindrical body (3) is formed by splicing several monolithic arc plates (31),wherein several arch plates II (32) are arranged on the inner diameter of the monolithic arch plate (31), wherein a trapezoidal connecting piece (5) is arranged on both sides of the monolithic arch plate (31) and the one-piece corrugated body (21), wherein a circumferential flange (9) is arranged on the upper surface of arch plate I (22) and arch plate II (32), wherein a steel wire rope internal tensioning mechanism (7) is arranged between the circumferential flange (9) and the trapezoidal connecting piece (5), and wherein an upper flange (8) is arranged on the top of the multi-part cylindrical body (3). [2] Combined tower structure for a wind turbine according to claim 1, characterized by, that the TMD damping arrangement (4) has a counterweight block (41) arranged inside the multi-part corrugated body (2), wherein several pull ropes (42) are arranged on the top of the counterweight block (41), the other end of the pull rope (42) being attached by bolts to a flange on the top of the multi-part corrugated body (2), wherein several viscous dampers (43) are arranged around the counterweight block (41), one end of the viscous damper (43) being attached to the inner wall of the multi-part corrugated body (2). [3] Combined tower structure for a wind turbine according to claim 1, characterized by, that the circumferential flange (9) has several arc-shaped flange pieces (91), wherein an arc-shaped flange ring (94) is arranged on the upper surface of the arc-shaped flange piece (91), wherein a stiffening rib (92) is arranged between the arc-shaped flange piece (91) and the arc-shaped flange ring (94), wherein a slot and tenon connection (93) is arranged at each of the two ends of the arc-shaped flange piece (91), wherein the two arc-shaped flange pieces (91) are attached and fastened by means of a slot and tenon connection (93). [4] Combined tower structure for a wind turbine according to claim 1, characterized by, that the steel wire rope internal tensioning mechanism (7) consists of a steel wire rope (71), an adjusting screw (72), an adjusting nut (73) and a screw (74), wherein the screws (74) are arranged in the mounting bores of the two trapezoidal connecting pieces (5), wherein the steel wire rope (71) is arranged in a gap between the two trapezoidal connecting pieces (5), wherein one end of the steel wire rope (71) is fastened by means of a screw (74), wherein the adjusting screw (72) is arranged at the other end of the steel wire rope (71), wherein the adjusting screw (72) passes through the arc-shaped flange ring (94), and wherein the adjusting nut (73) fits through a thread with the adjusting screw (72). [5] Combined tower structure for a wind turbine according to claim 1, characterized by, that the two trapezoidal connecting pieces (5) are fastened together by several bolts, the trapezoidal connecting piece (5) acting not only as a connecting piece but also as a trapezoidal stiffening rib. [6] Combined tower structure for a wind turbine according to claim 1, characterized by , that the steel wire rope internal tensioning mechanism (7) is arranged within the multi-part wave body (2) or the multi-part cylinder body (3). [7] Combined tower structure for a wind turbine according to claim 1, characterized by, that several dampers are arranged at the connection between the square support frame (1) and the multi-part corrugated body (2), wherein a sealing disc is arranged between the connecting flange (6) and the connecting surface of the square support frame (1) and the multi-part corrugated body (2), wherein the sealing disc consists of a composite of polysulfide sealing adhesive and EPDM adhesive strips. [8] Combined tower structure for a wind turbine according to claim 1, characterized by, that trapezoidal longitudinal ribs are arranged on the inside of the multi-part cylindrical body (3), wherein the trapezoidal longitudinal ribs are connected to the arch plate II (32) to form a reinforcing grid, wherein the longitudinal flange is designed as a trapezoidal surface back, wherein the lightweight steel keel structure formed by the longitudinal flange and the inner ring adjusting flange is used to increase the safety factor against collapse of this tower by more than 6 times. [9] Combined tower structure for a wind turbine according to claim 1, characterized by, that the one-piece corrugated body (21) and the monolithic arch plate (31) each consist of specially shaped plates, wherein several reinforcing bars (11) are arranged between the main bars of the square support frame (1), wherein the square support frame (1) is equipped with an obliquely inserted truss structure with a square space, wherein the inclined main tube is designed as a straight-seam welded steel tube DN500-1500mm with thin wall and weather resistance, wherein a steel wire rope tensioning mechanism is arranged inside the tube and high-quality concrete of C50 or higher is cast.