Bottom yawing inhaul cable type self-balancing wind power supporting structure system

Abstract

The utility model provides a bottom yawing inhaul cable type self-balancing wind power supporting structure system which is used for solving the technical problems that an existing wind generating set is large in tower column structure, unbalanced in stress and low in power generation efficiency. The supporting structure system comprises an obliquely-arranged tower column frame, and a fixed wind turbine generator set is installed at the top end of the tower column frame. The lower end of the tower column frame is provided with a supporting frame, the bottom end of the supporting frame is provided with a yaw wind facing assembly capable of rotating freely, and an inhaul cable assembly is arranged between the supporting frame and the tower column frame. The inhaul cable assemblies are arranged on the two sides of the tower column frame, so that the whole tower column frame is of a self-anchored balanced structure, the absolute value of the bending moment of the tower column frame is greatly reduced and even is 0, the steel consumption of the tower column frame is greatly reduced, and the construction cost of the tower frame is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a bottom yaw cable type self-balancing wind power support structure system. Background Art

[0002] Due to its beautiful appearance, small space occupation and high support height, the independent tower structure has been widely used in large wind turbines. Traditional independent towers generally use cylindrical or conical steel towers, which are composed of multiple sections connected by flanges.

[0003] However, with the development trend of large-scale wind turbines, the height and diameter of the tower are increasing. For existing independent wind turbine towers, the horizontal displacement (i.e., stiffness index) at the center of the wind turbine hub at the top of the tower is proportional to the cube of the tower. Therefore, in order to make the tower meet the stiffness and strength indicators, the cost of the tower increases exponentially with the height of the tower.

[0004] At the same time, the production, transportation and installation costs of large-diameter towers are high. The towers are processed and manufactured in workshops, which requires large-scale manufacturing equipment, and each segment needs a large-diameter flange connection, which increases the production cost; the transportation is more difficult due to restrictions on road load or turning radius, bridges and tunnels, etc.; large-diameter towers are heavy, and large-tonnage cranes are required for installation, which increases the installation cost. Due to the limitations of existing manufacturing equipment, roads and crane capacity, there are many problems in the manufacture, transportation and installation of large towers that need to be solved urgently.

[0005] In addition, large-diameter towers require large foundation supports. Wind loads form a huge overturning moment at the bottom of the tower, so a large and solid reinforced concrete foundation is needed to resist this effect. However, the traditional independent foundation has sufficient compressive strength but insufficient anti-overturning ability. In order to meet the large overturning moment requirements of the wind turbine foundation, it is necessary to increase the plane size of the foundation and set strong prestressed anchors. The efficiency of the foundation structure tends to decrease, resulting in a large waste of design resources. In addition, the construction of the foundation is a large-volume reinforced concrete construction, which has a long construction period, high difficulty, poor stability, and difficult to guarantee construction quality. Utility Model Content

[0006] The purpose of the utility model is to provide a bottom yaw cable type self-balancing wind power support structure system, which is used to solve the problems of large tower structure, unbalanced force and low power generation efficiency of existing wind power generator sets.

[0007] A bottom yaw cable-type self-balancing wind power support structure system comprises an inclined tower frame, and a fixed wind turbine set is installed on the top of the tower frame;

[0008] A support frame is arranged at the lower end of the tower frame, a freely rotatable yaw wind-facing component is arranged at the bottom end of the support frame, and a cable component is arranged between the support frame and the tower frame.

[0009] Optionally, the tower column frame is a central tower column arranged obliquely, and the support frame includes a rigid node, a plurality of oblique legs and a plurality of oblique braces;

[0010] The bottom end of the central tower column, the upper ends of several oblique legs and one end of several oblique struts are all connected to the rigid node, several oblique legs and several oblique struts are radially arranged around the rigid node, and the bottom ends of adjacent oblique legs are connected by bottom pull rods.

[0011] Optionally, the cable assembly includes a forward cable, a rear upward cable, a rear downward cable and a transverse cable;

[0012] The side where the impeller of the wind turbine is located is defined as the front side of the central tower column. A number of forward cables are connected between the oblique legs located on the front side and the central tower column, a number of rear upward cables are connected between a number of the oblique struts and the central tower column, a number of rear downward cables are connected between a number of the oblique struts and the oblique legs below, and transverse cables are connected between adjacent oblique struts.

[0013] Optionally, one ends of the plurality of forward cables are connected to the bottom ends of the oblique legs, and the other ends of the plurality of forward cables are sequentially connected to the central tower column from bottom to top.

[0014] Optionally, the tower frame is an A-shaped tower frame arranged obliquely;

[0015] The support frame includes a plurality of inclined V-shaped legs and an obliquely arranged V-shaped oblique strut. The plurality of V-shaped legs and the V-shaped oblique strut are connected to form a support frame. The bottom ends of the V-shaped legs are also connected by a bottom pull rod.

[0016] Optionally, the cable assembly includes a forward cable and a rearward upward cable;

[0017] A plurality of forward cables are connected between the bottom end of the V-shaped support leg and the A-shaped tower, and a plurality of rearward upward cables are connected between the V-shaped oblique support rod and the upper part of the A-shaped tower.

[0018] Optionally, one end of each of the forward cables is connected to the bottom end of the V-shaped leg, and the other ends of each of the forward cables are sequentially connected to the A-shaped tower from top to bottom;

[0019] One ends of the plurality of rear upward cables are connected to the V-shaped oblique struts, and the other ends of the plurality of rear upward cables are sequentially connected to the upper portion of the A-shaped tower from top to bottom.

[0020] Optionally, the yaw wind-facing assembly includes a yaw track mounted on a base, the yaw track is an annular track beam, and a plurality of yaw activity modules slidably arranged on the annular track beam;

[0021] The yaw activity module comprises a yaw motor, a yaw actuator and a yaw brake. The yaw actuator comprises a roller frame and a roller module mounted on the roller frame. The tower seat is mounted on the roller frame through a movable bracket.

[0022] Optionally, the yaw wind-facing assembly includes a base cylinder and a yaw track sleeved on the base cylinder, and the yaw track includes a collar and a gear ring sleeved on an outer wall of the collar;

[0023] A plurality of connecting plates are installed on the outer wall of the collar, the other ends of the plurality of connecting plates are connected to a tower mounting plate, and a yaw activity module is installed on the tower mounting plate;

[0024] The yaw activity module includes a yaw motor, a yaw actuator and a yaw brake. The yaw actuator includes a gear installed at the bottom end of the tower base mounting plate, the gear is meshed with the gear ring, and the tower base is installed on the tower base mounting plate through a movable bracket.

[0025] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0026] 1. The present application sets forward cables, rear upward cables and rear downward cables on both sides of the tower frame, so that the whole is a self-anchored balanced structure, and the absolute value of the bending moment of the tower frame is greatly reduced or even 0, which is conducive to greatly reducing the steel consumption of the tower frame and effectively reducing the construction cost of the tower frame.

[0027] 2. In order to avoid blades sweeping the tower, conventional wind power generation has a certain cone angle and elevation angle. The cone angle and elevation angle of the wind rotor have an important impact on the performance and working stability of the wind turbine. This application can effectively avoid interference between the blades and the tower through the inclined tower frame design, improve the design of the wind rotor cone angle and elevation angle, and improve the power generation efficiency.

[0028] 3. This application can make the foundation only subject to pressure or extremely small tension by adjusting the center of gravity or adjusting the cable tension, thereby greatly reducing the amount of steel and concrete used in the foundation and reducing the foundation construction cost.

[0029] 4. This application can significantly reduce the amount of steel used in the tower frame by setting cables, and the lightweight tower and foundation are conducive to transportation and installation, and do not require super-large lifting equipment, thereby reducing construction costs.

[0030] 5. This application can achieve vibration reduction by installing cable shock absorbers or tower TMD dampers, which effectively prevents the tower from vibrating significantly and avoids fatigue damage.

[0031] 6. By taking the measure of inward retraction of the diagonal struts, it helps to reduce the footprint of the lower foundation and reduce the foundation cost.

[0032] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings of the present utility model are described as follows.

[0034] Figure 1 This is a schematic structural diagram of a single oblique strut wind power support structure system in Example 1 of the utility model.

[0035] Figure 2 This is a schematic structural diagram of a wind power support structure system with multiple oblique struts in Example 1 of the utility model.

[0036] Figure 3 This is a schematic diagram of the structure of the A-shaped tower wind power support structure system in Example 2 of the utility model.

[0037] Figure 4 It is a structural schematic diagram of the guide rail type yaw wind facing component of the utility model.

[0038] Figure 5 It is a structural schematic diagram of the gear-type yaw wind-facing component of the utility model.

[0039] In the figure: 1-fixed wind turbine; 2-central tower column; 3-rigid node; 4-oblique legs; 5-oblique struts; 6-bottom pull rods; 7-forward cables; 8-rear upward cables; 9-rear downward cables; 10-lateral cables; 11-A-shaped tower; 12-V-shaped legs; 13-V-shaped oblique struts; 14-lateral connecting rods; 15-annular track beams; 16-roller racks; 17-tower base; 18-movable brackets; 19-rings; 20-gear rings; 21-connecting plates; 22-tower base mounting plates; 23-gears. DETAILED DESCRIPTION

[0040] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Embodiment 1:

[0042] like Figure 1 and Figure 2 A bottom yaw cable-type self-balancing wind power support structure system shown includes a central tower column 2 arranged obliquely, and a fixed wind turbine unit 1 is installed on the top of the tower column frame; the central tower column 2 can be a tubular or truss structure;

[0043] A support frame is provided at the lower end of the central tower column 2 , a freely rotatable yaw wind-facing component is provided at the bottom end of the support frame, and a cable component is provided between the support frame and the central tower column 2 .

[0044] In this embodiment, the central tower column 2 is tilted to avoid its influence on the sweep of the wind turbine blades, and a self-balancing support system is formed by setting a cable assembly to reduce the stress on the central tower column and the foundation. In this embodiment, the point where the cable is connected to the central tower column is called a tower column cable node. The application can adjust the number of tower column cable nodes according to the length of the central tower column 2 to ensure the reasonable stress of the tower column segment, and through the pre-adjustment optimization of the cable, the absolute value of the bending moment of the central tower column is very small, or even 0.

[0045] like Figure 1 and Figure 2 As shown, the support frame includes a rigid node 3, a plurality of oblique legs 4 and a plurality of oblique struts 5;

[0046] The bottom end of the central tower column 2, the upper ends of the plurality of oblique legs 4 and one ends of the plurality of oblique struts 5 are all connected to the rigid node 3. The plurality of oblique legs 4 and the plurality of oblique struts 5 are radially arranged around the rigid node 3, and the bottom ends of adjacent oblique legs 4 are connected by bottom pull rods 6.

[0047] As an embodiment of the present application, Figure 1 As shown, the number of the oblique legs 4 and the number of the bottom tie rods 6 are both three, and the three bottom tie rods 6 form a triangular support frame; the number of the oblique support rod 5 is one. As another embodiment of the present application, Figure 2 As shown, the number of the oblique legs 4 and the bottom tie rods 6 are both five, and the five tie rods 4 form a pentagonal support frame; the number of the oblique struts 5 is four. In this embodiment, the rigid node is located at 1 / 5 to 1 / 3 of the hub height. A plurality of oblique support cable nodes are also provided on the oblique legs 4. The cross section of the oblique legs 4 is tubular or truss. Similarly, through the pre-adjustment optimization of the cable, the absolute value of the bending moment on the central tower column 2 and the oblique legs 4 is very small or even 0, which is close to the ideal axially compressed member.

[0048] As an embodiment of the present application, the axis of one of the oblique legs 4 coincides with the axis of the central tower column 2. As another embodiment of the present application, the axes of several oblique legs 4 do not coincide with the axis of the central tower column 2.

[0049] like Figure 2As shown, the cable assembly includes a forward cable 7, a rear upward cable 8, a rear downward cable 9 and a transverse cable 10;

[0050] The side where the impeller of the wind turbine is located is defined as the front side of the central tower column 2. A number of forward cables 7 are connected between the oblique support legs 4 located on the front side and the central tower column 2. A number of rear upward cables 8 are connected between a number of the oblique support rods 5 and the central tower column 2. A number of rear downward cables 9 are connected between a number of the oblique support rods 5 and the oblique support legs 4 below. Transverse cables 10 are connected between adjacent oblique support rods 5.

[0051] like Figure 1 and Figure 2 As shown, one ends of the plurality of forward cables 7 are connected to the bottom ends of the oblique legs 4, and the other ends of the plurality of forward cables 7 are sequentially connected to the central tower column 2 from bottom to top.

[0052] As an embodiment of the present application, Figure 1 As shown, there are six forward cables 7, which are divided into two groups. The two groups of forward cables 7 are respectively fixed between the two front oblique legs 4 and the central tower column 2. There are three rear upward cables 8. There are three groups of rear downward cables 9, a total of nine. Three cable nodes are set on the oblique support rod 5, and each cable node is divided into three cables connected to the three oblique legs respectively.

[0053] As another embodiment of the present application, Figure 2 As shown, three groups of six forward cables 7 are arranged between the two front oblique legs 4 and the central tower column 2; four groups of twelve rear upward cables 8 are arranged between the oblique support rod 5 and the central tower column 2. Rear downward cables 9 are arranged between the single oblique support rod 5 and the bottom of the oblique legs 4 on the left and right sides below.

[0054] In this embodiment, a cable vibration damper or a tower TMD damper may be installed to achieve vibration reduction, thereby effectively preventing the tower from vibrating significantly and avoiding fatigue damage.

[0055] The yaw wind component includes a wind direction sensor, a yaw motor, a yaw actuator, a yaw brake and a yaw track, wherein the yaw motor, the yaw actuator and the yaw brake form an integral yaw activity module arranged on the yaw track.

[0056] As an embodiment of the present application, Figure 4 As shown, the yaw track is an annular track beam 15 , the yaw operator includes a roller frame 16 and a roller module installed on the roller frame 16 , and a tower seat 17 is installed on the roller frame 16 through a movable bracket 18 .

[0057] In this embodiment, the yaw wind component is set to achieve different angles of deflection according to the wind direction, thereby improving the conversion efficiency of wind power generation. When the wind direction changes, the yaw motor drives the yaw actuator to move along the annular track beam 15, thereby driving the self-balancing wind power support structure to rotate.

[0058] As another embodiment of the present application, the yaw track includes a collar 19 sleeved on the base cylinder, and a gear ring 20 sleeved on the outer wall of the collar 19;

[0059] A plurality of connecting plates 21 are installed on the outer wall of the collar 19, and the other ends of the plurality of connecting plates 21 are connected to a tower mounting plate 22. The yaw activity module is installed on the tower mounting plate 22. The yaw actuator is a gear 23 installed at the bottom end of the tower mounting plate 22. The gear 23 is meshed with the gear ring 20. The tower seat 17 is installed on the tower mounting plate 22 through a movable bracket 18.

[0060] In this embodiment, when the wind direction changes, the yaw motor drives the gear 23 to rotate, the gear 23 engages with the gear ring 20, and the driving ring 19 rotates around the base cylinder, driving the self-balancing wind power support structure to rotate stably.

[0061] In this embodiment, the wind direction sensor is installed on the wind turbine unit, and as a sensing element, it transmits the wind direction change to the processor of the yaw motor control loop with an electrical signal. The yaw system set at the bottom of this solution can effectively solve the problem that the wind turbine yaw will interfere with the cable after the traditional tower uses the cable to increase the tower stability. The specific yaw method is:

[0062] S1. Sense wind direction: The wind direction sensor senses the wind direction and transmits it to the yaw motor and yaw brake in the form of electrical signals;

[0063] S2, Rotation to the wind: The yaw brake stops working after receiving the signal, and at the same time, the yaw motor starts to drive the yaw actuator to operate on the yaw track. This movement makes the entire wind power support system yaw to the wind;

[0064] S3. Wind alignment is completed: When the wind force is sensed to the maximum, the signal transmitted by the wind direction sensor stops the yaw motor from working, and at the same time, the yaw brake starts braking to stop the yaw actuator, thus completing wind alignment.

[0065] S4. Adjust the wind again: when the wind direction changes, repeat steps S1-S3.

[0066] Embodiment 2:

[0067] like Figure 3A bottom yaw cable-type self-balancing wind power support structure system shown includes a tower frame, which is an inclined A-shaped tower frame 11. A fixed wind turbine set 1 is installed on the top of the A-shaped tower frame 11, and a transverse connecting rod 14 is connected between the two columns of the A-shaped tower frame 11.

[0068] A support frame is disposed at the lower end of the A-shaped tower 11 , a freely rotatable yaw wind-facing assembly is disposed at the bottom end of the support frame, and a cable assembly is disposed between the support frame and the A-shaped tower 11 .

[0069] like Figure 3 As shown, the support frame includes a plurality of inclined V-shaped legs 12 and an obliquely arranged V-shaped oblique strut 13. The plurality of V-shaped legs 12 and the V-shaped oblique strut 13 are connected to form a support frame, and the bottom ends of the V-shaped legs are also connected by a bottom pull rod 6.

[0070] In this embodiment, the A-shaped tower 11 is tilted to avoid its influence on the sweep of the wind turbine blades, and a self-balancing support system is formed by setting a cable assembly to reduce the bending moment of the A-shaped tower column. In this embodiment, the point where the cable is connected to the A-shaped tower 11 is called a tower cable node. The application adjusts the number of tower cable nodes according to the length of the A-shaped tower 11 to ensure the reasonable force of the tower segment, and through the pre-adjustment optimization, the absolute value of the bending moment of the A-shaped tower column 10 is very small, or even zero.

[0071] like Figure 3 As shown, the cable assembly includes a forward cable 7 and a rearward upward cable 8, and the forward cable 7 and the rearward upward cable 8 are both pre-tensioned cables, and vibration dampers are installed at both ends of the cables;

[0072] A plurality of forward cables 7 are connected between the bottom end of the V-shaped support leg 12 and the A-shaped tower 11 , and a plurality of rearward upward cables 8 are connected between the V-shaped oblique support rod 13 and the upper part of the A-shaped tower 11 .

[0073] like Figure 3 As shown, one end of the plurality of forward cables 7 is connected to the bottom end of the V-shaped leg 12, and the other ends of the plurality of forward cables 7 are sequentially connected to the A-shaped tower 11 from top to bottom;

[0074] One ends of the plurality of rear upward cables 8 are connected to the V-shaped oblique struts 13 , and the other ends of the plurality of rear upward cables 8 are sequentially connected to the upper portion of the A-shaped tower 11 from top to bottom.

[0075] In this embodiment, there are three forward cables 6, two of which are connected between the bottom end of the V-shaped leg 12 and the two column side walls of the A-shaped tower 11, and the other is connected between the bottom end of the V-shaped leg 12 and the top of the A-shaped tower 11. There are three rearward upward cables 7, two of which are connected between one end of the V-shaped oblique brace 13 and the two column side walls of the A-shaped tower 11, and the other is connected between one end of the V-shaped oblique brace 13 and the top of the A-shaped tower 11.

[0076] In this embodiment, measures such as providing a TMD damper in the A-shaped tower 11 or providing a vibration absorber on each cable can effectively prevent the tower from vibrating significantly and avoid fatigue damage.

[0077] The yaw wind component includes a wind direction sensor, a yaw motor, a yaw actuator, a yaw brake and a yaw track, wherein the yaw motor, the yaw actuator and the yaw brake form an integral yaw activity module arranged on the yaw track.

[0078] As an embodiment of the present application, Figure 4 As shown, the yaw track is an annular track beam 15 , the yaw operator includes a roller frame 16 and a roller module installed on the roller frame 16 , and a tower seat 17 is installed on the roller frame 16 through a movable bracket 18 .

[0079] In this embodiment, the yaw wind component is set to achieve different angles of deflection according to the wind direction, thereby improving the conversion efficiency of wind power generation. When the wind direction changes, the yaw motor drives the yaw actuator to move along the annular track beam 15, thereby driving the self-balancing wind power support structure to rotate.

[0080] As another embodiment of the present application, the yaw track includes a collar 19 sleeved on the base cylinder, and a gear ring 20 sleeved on the outer wall of the collar 19;

[0081] A plurality of connecting plates 21 are installed on the outer wall of the collar 19, and the other ends of the plurality of connecting plates 21 are connected to a tower mounting plate 22. The yaw activity module is installed on the tower mounting plate 22. The yaw actuator is a gear 23 installed at the bottom end of the tower mounting plate 22. The gear 23 is meshed with the gear ring 20. The tower seat 17 is installed on the tower mounting plate 22 through a movable bracket 18.

[0082] In this embodiment, when the wind direction changes, the yaw motor drives the gear 23 to rotate, the gear 23 engages with the gear ring 20, and the driving ring 19 rotates around the base cylinder, driving the self-balancing wind power support structure to rotate stably.

[0083] In this embodiment, the wind direction sensor is installed on the wind turbine unit, and as a sensing element, it transmits the wind direction change to the processor of the yaw motor control loop with an electrical signal. The yaw system set at the bottom of this solution can effectively solve the problem that the wind turbine yaw will interfere with the cable after the traditional tower uses the cable to increase the tower stability. The specific yaw method is:

[0084] S1. Sense wind direction: The wind direction sensor senses the wind direction and transmits it to the yaw motor and yaw brake in the form of electrical signals;

[0085] S2, Rotation to the wind: The yaw brake stops working after receiving the signal, and at the same time, the yaw motor starts to drive the yaw actuator to operate on the yaw track. This movement makes the entire wind power support system yaw to the wind;

[0086] S3. Wind alignment is completed: When the wind force is sensed to the maximum, the signal transmitted by the wind direction sensor stops the yaw motor from working, and at the same time, the yaw brake starts braking to stop the yaw actuator, thus completing wind alignment.

[0087] S4. Adjust the wind again: when the wind direction changes, repeat steps S1-S3.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A bottom yaw cable self-balancing wind power support structure system, characterized in that: It comprises an inclined tower frame, a fixed wind turbine set (1) being installed on the top of the tower frame; A support frame is arranged at the lower end of the tower frame, a freely rotatable yaw wind-facing component is arranged at the bottom end of the support frame, and a cable component is arranged between the support frame and the tower frame.

2. A bottom yaw cable-type self-balancing wind power support structure system according to claim 1, characterized in that: The tower column frame is a central tower column (2) arranged obliquely, and the support frame comprises a rigid node (3), a plurality of oblique legs (4) and a plurality of oblique support rods (5); The bottom end of the central tower column (2), the upper ends of a plurality of oblique legs (4) and one end of a plurality of oblique struts (5) are all connected to the rigid node (3); the plurality of oblique legs (4) and the plurality of oblique struts (5) are radially arranged around the rigid node (3); the bottom ends of adjacent oblique legs (4) are connected via a bottom tie rod (6).

3. A bottom yaw cable self-balancing wind power support structure system according to claim 2, characterized in that: The cable assembly comprises a forward cable (7), a rear upward cable (8), a rear downward cable (9) and a transverse cable (10); The side where the impeller of the wind turbine is located is defined as the front side of the central tower column (2); a plurality of forward cables (7) are connected between the oblique support legs (4) located on the front side and the central tower column (2); a plurality of rearward cables (8) are connected between the oblique support rods (5) and the central tower column (2); a plurality of rearward cables (9) are connected between the oblique support rods (5) and the oblique support legs (4) below; and transverse cables (10) are connected between adjacent oblique support rods (5).

4. A bottom yaw cable self-balancing wind power support structure system according to claim 3, characterized in that: One ends of the plurality of forward cables (7) are connected to the bottom ends of the oblique legs (4), and the other ends of the plurality of forward cables (7) are sequentially connected to the central tower column (2) from bottom to top.

5. The bottom yaw cable self-balancing wind power support structure system according to claim 1, characterized in that: The tower column frame is an A-shaped tower frame (11) arranged obliquely; The support frame comprises a plurality of V-shaped legs (12) arranged obliquely and a V-shaped oblique support rod (13) arranged obliquely, wherein the plurality of V-shaped legs (12) and the V-shaped oblique support rod (13) are connected to form a support frame, and the bottom ends of the V-shaped legs are also connected via a bottom pull rod (6).

6. A bottom yaw cable self-balancing wind power support structure system according to claim 5, characterized in that: The cable assembly comprises a forward cable (7) and a rearward upward cable (8); A plurality of forward cables (7) are connected between the bottom end of the V-shaped support leg (12) and the A-shaped tower (11), and a plurality of rearward cables (8) are connected between the V-shaped oblique support rod (13) and the upper part of the A-shaped tower (11).

7. A bottom yaw cable self-balancing wind power support structure system according to claim 6, characterized in that: One ends of the plurality of forward cables (7) are connected to the bottom ends of the V-shaped legs (12), and the other ends of the plurality of forward cables (7) are sequentially connected to the A-shaped tower (11) from top to bottom; One ends of the plurality of rear upward cables (8) are connected to the V-shaped oblique struts (13), and the other ends of the plurality of rear upward cables (8) are sequentially connected to the upper portion of the A-shaped tower (11) from top to bottom.

8. The bottom yaw cable self-balancing wind power support structure system according to claim 1, characterized in that: The yaw wind-facing assembly comprises a yaw track mounted on a base, the yaw track being an annular track beam (15), and a plurality of yaw activity modules slidably arranged on the annular track beam (15); The yaw activity module comprises a yaw motor, a yaw actuator and a yaw brake, the yaw actuator comprises a roller frame (16) and a roller module mounted on the roller frame (16), and a tower seat (17) is mounted on the roller frame (16) via a movable bracket (18).

9. The bottom yaw cable self-balancing wind power support structure system according to claim 1, characterized in that: The yaw wind-facing assembly comprises a base cylinder and a yaw track sleeved on the base cylinder, and the yaw track comprises a collar (19) and a gear ring (20) sleeved on the outer wall of the collar (19); A plurality of connecting plates (21) are installed on the outer wall of the collar (19), the other ends of the plurality of connecting plates (21) are connected to a tower mounting plate (22), and a yaw activity module is installed on the tower mounting plate (22); The yaw activity module comprises a yaw motor, a yaw actuator and a yaw brake. The yaw actuator comprises a gear (23) mounted at the bottom end of the tower base mounting plate (22). The gear (23) is meshed with the gear ring (20). The tower base (17) is mounted on the tower base mounting plate (22) via a movable bracket (18).

Images