Wind power generation system

Abstract

The utility model relates to a wind power generation system which comprises a tower, a cabin, a limiting sliding rail, a wind wheel, an inhaul cable and a wind gathering device. The tower is provided with a tower base, a bearing seat and a horizontal rotating shaft, the horizontal rotating shaft is installed on the rear side of the bottom of the tower, the tower is installed in the bearing seat through the tower rotating shaft, the bearing seat is installed in the tower base, a fixed pulley block and a fixing device are arranged on the top of the tower, and the cabin is fixedly installed on a limiting sliding rail in a sliding mode through the fixing device. A hoisting rope of the crane bypasses the fixed pulley block and then is fixedly connected with the cabin, the wind gathering device is obliquely installed on the wind receiving side of the tower, the wind speed can be increased, the wind speed difference in the vertical direction is reduced, the wind energy utilization rate and the overall running stability of the fan are improved, and the wind power generation system is low in manufacturing cost, simple in structure and convenient to use. The wind wheel and the cabin can be automatically hoisted and disassembled, installation and maintenance are very simple and convenient, and the installation and maintenance cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially is related to a kind of wind power generation system. BACKGROUND

[0002] At present, wind turbine, especially high-power model wind turbine, mainly adopts lift-type three-blade horizontal axis wind wheel structure form. The wind wheel shaft of this type of wind turbine is horizontally installed and the wind wheel rotates vertically. The wind wheel rotation drives the speed increaser, and the speed increaser drives the generator to generate electricity after speed increasing. The speed increaser and the engine are coaxially installed and located in the rotatable cabin at the top of the fixed tower. A large-scale rotary support platform is installed at the top of the tower, and the cabin is installed on the rotary support platform. When the wind direction changes, the cabin rotates horizontally around the axis of the tower, and the wind wheel blades rotate around the tower body. The overturning moment generated by the wind wheel of the wind turbine with this structure form acts in all directions of the tower, so the strength and stiffness of the tower in all directions are required to be very high. The shape and structure of the tower are also limited, and the amount and weight of the corresponding materials are required to be very large. In addition, the rotary support platform is arranged at the top of the tower, which causes the center of gravity to be high, resulting in poor wind resistance of the tower as a whole. Large cranes are required for installation of the wind power generation system. First, the tower drum is hoisted to assemble the tower, and then the cabin and the wind wheel blades are hoisted to the top of the tower for installation. The construction is difficult, the cost is high, and the risk is large. When maintaining, the maintenance personnel must ascend to the cabin at the top of the tower by elevator for maintenance. Further, the tower material and weight need to be increased, which increases the equipment cost, operation and maintenance cost and high-altitude operation risk. With the increasing large-scale of wind turbines, the height of the tower is getting higher and higher, and the cost, safety, installation and operation and maintenance challenges are also increasing. Therefore, the traditional form of wind power generation system is relatively backward in many aspects. SUMMARY

[0003] In order to overcome the defects and deficiencies of the above-mentioned prior art wind power generation system, which is inconvenient to install, has high manufacturing and maintenance cost, and poor wind resistance and stability, the utility model provides a wind power generation system with low manufacturing cost, simple structure and high wind energy utilization efficiency, and an installation method thereof.

[0004] To achieve the above-mentioned purpose, the first purpose of the embodiment of the utility model is to provide a wind power generation system, comprising:

[0005] A cabin is installed with a generator and a speed increaser box, the generator is located below the speed increaser box, the speed increaser box has an input shaft and an output shaft and adopts multi-stage parallel shaft transmission, the input shaft is located at the top in the speed increaser box, and the output shaft is located at the bottom of the speed increaser box;

[0006] a wind wheel having a wind wheel hub and wind wheel blades, the wind wheel hub being mounted on the input shaft;

[0007] a tower having a tower base, a bearing seat and a horizontal rotating shaft, the tower being mounted in the bearing seat through a tower rotating shaft, the bearing seat being mounted in the tower base, a top of the tower being provided with a fixed pulley block and a fixing device, the horizontal rotating shaft being mounted at a rear side of a bottom of the tower, the tower being fixedly hinged on the tower base through the horizontal rotating shaft, a bottom of the tower being provided with a crane, a back of the tower being provided with a limiting slide rail arranged along a height direction of the tower, the nacelle being slidably and fixedly mounted on the limiting slide rail through the fixing device, a hoisting rope of the crane being fixedly connected with the nacelle after passing through the fixed pulley block and being capable of driving the nacelle to ascend or descend along the limiting slide rail, a front side of a lower part of the tower being provided with a front inhaul cable rod extending horizontally and outwardly;

[0008] a cable, the cable comprising a first upper cable and a first lower cable, a top end of the first upper cable being fixedly mounted on an upper part of the tower, a bottom end of the first upper cable being fixedly mounted on a top of the front inhaul cable rod, a top end of the first lower cable being fixedly mounted on the top of the front inhaul cable rod, a bottom end of the first lower cable being fixedly mounted on the tower base;

[0009] a wind gathering device, the wind gathering device being obliquely mounted on a front side of the tower, a top edge of the wind gathering device being located at a blade tip position of the wind wheel blades, a bottom edge of the wind gathering device being fixed to a top end of the front inhaul cable rod.

[0010] In some embodiments, it is preferable to further comprise a horizontal base and a slewing bearing platform, the horizontal base being arranged on the ground, the slewing bearing platform being fixedly mounted on the horizontal base, the tower base being fixedly mounted on the slewing bearing platform.

[0011] In some embodiments, preferably, the tower is provided with horizontal lateral extension side edge cable rods on both left and right sides, the cable further comprises two groups of second upper cables and two groups of second lower cables, any two of the second upper cables form a group and the top ends of the second upper cables in the group are fixedly installed on the upper part of either side of the tower, the bottom ends of the second upper cables in the group are fixedly installed on the top of the side edge cable rod on the either side, any two of the second lower cables form a group and the top ends of the second lower cables in the group are fixedly installed on the top of the side edge cable rod on either side, the bottom ends of the two second lower cables in the group are fixedly installed on the tower base; the other two second upper cables form a group and the top ends of the second upper cables in the group are fixedly installed on the upper part of the other side of the tower, the bottom ends of the second upper cables in the group are fixedly installed on the top of the side edge cable rod on the other side, the other two second lower cables form a group and the top ends of the second lower cables in the group are fixedly installed on the top of the side edge cable rod on the other side, the bottom ends of the two second lower cables in the group are fixedly installed on the tower base.

[0012] In some embodiments, preferably, the tower is a rectangular frame structure or a triangular frame structure and is provided with a streamlined cover.

[0013] In some embodiments, preferably, the nacelle is a flat rectangular frame structure.

[0014] In some embodiments, preferably, the wind wheel blades are a three-blade structure or a two-blade structure.

[0015] In some embodiments, preferably, the wind gathering device is composed of a rectangular frame and a cloth or is composed of a rectangular frame and a composite material sheet.

[0016] In some embodiments, preferably, the wind wheel is installed close to the tower in the downwind direction.

[0017] In some embodiments, preferably, the wind power generation system is installed on a fixed platform or a rotatable floating platform in the sea, when the wind power generation system is installed on the rotatable floating platform, the slewing bearing platform under the tower base is cancelled.

[0018] In some embodiments, preferably, the number of the first upper cables and the first lower cables is two, the top ends of the two first upper cables are fixedly installed on the upper part of the tower at the same time, the bottom ends of the two first upper cables are fixedly installed on the top of the front cable rod at the same time, the top ends of the two first lower cables are fixedly installed on the top of the front cable rod at the same time, and the bottom ends of the two first lower cables are fixedly installed on the tower base.

[0019] In some embodiments, it is preferred that the tower is made of metal material.

[0020] To achieve the above-mentioned purpose, the second purpose of the embodiment of the utility model is to provide a kind of installation method of wind power generation system, comprising:

[0021] First, the tower shaft is installed in the bearing seat on the tower base, the horizontal rotating shaft is installed in the rear side of tower bottom, and the tower is fixedly articulated on the tower base by the horizontal rotating shaft;

[0022] Second, after the tower is assembled horizontally as a whole, the tower is vertically fixed by pulling the first pull cable and connecting with the tower base by bolt;

[0023] Then, the nacelle is installed at the bottom of the limiting track by the fixing device, the crane is started to drive the hoisting rope to lift the nacelle to appropriate height, then the wind wheel blade is hoisted and installed on the wind wheel hub, after the wind wheel is installed, the crane continues to lift the nacelle to the top of the tower by driving the hoisting rope, and is fixed above the limiting track.

[0024] Compared with the prior art, the wind power generation system provided by the embodiment of the utility model has the advantages that the tower is light in weight, strong in wind resistance, can reach higher height, higher in wind energy utilization rate and safety, simple in structure, and low in cost; the wind wheel is in downwind direction, the blades are away from the tower when wind, the risk of blade sweeping tower is completely eliminated, the strength and rigidity requirements of blades are reduced, the blade manufacturing cost is reduced, the wind wheel is installed close to the tower, the main shaft is shortened, the weight and cost are correspondingly reduced; the wind gathering device is installed on the tower, the wind speed can be improved, the vertical wind speed difference can be reduced, the wind energy utilization rate and the overall stability of wind turbine operation can be improved; the speed increasing box and the generator are arranged vertically, the center of gravity is low, the speed increasing box adopts multi-stage parallel shaft transmission, the structure is simple, and the manufacturing cost is low; the wind wheel and the nacelle can be hoisted and disassembled by themselves, and installation and maintenance are very simple and convenient, so that the installation and maintenance cost is greatly reduced. The wind power generation system of the utility model can utilize higher wind energy resources, the overall cost is greatly reduced, environmental adaptability and economy are high, and the advantage is more prominent when applied to low wind speed area and offshore floating wind power generation. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional structure schematic diagram of a preferred embodiment of wind power generation system according to the utility model Figure 1 ;

[0026] Figure 2 It is a three-dimensional structure schematic diagram of a preferred embodiment of wind power generation system according to the utility model Figure 1 ; Figure 2 ;

[0027] Figure 3 For the wind power generation system according to this utility model Figure 1 The diagram shows the front view structure of the embodiment shown.

[0028] Figure 4 For the wind power generation system according to this utility model Figure 1 The rear view structure diagram of the embodiment shown is shown.

[0029] Figure 5 For the wind power generation system according to this utility model Figure 1 The diagram shows a right-side view of the embodiment. Detailed Implementation

[0030] The preferred embodiments of this utility model will be further described below with reference to the accompanying drawings;

[0031] Example 1:

[0032] like Figures 1-2 The diagram illustrates a wind power generation system according to an embodiment of this application. The system includes a horizontal base 1, a slewing support platform 2, a tower base 3, a tower 4, an input shaft 5, cables, a nacelle 6, and a wind concentrator 11. The nacelle 6 is a flat rectangular frame structure. In this embodiment, the wind concentrator 11 is composed of a rectangular frame and fabric panels, or a rectangular frame and composite material sheets. The tower 4 has a tower pivot. The tower 4 is a rectangular or triangular frame structure. To reduce wind resistance, a streamlined outer casing can be added to the tower 4. The tower base 3 has bearing seats. The tower 4 is rotatably mounted in the bearing seats of the tower base 3 via the tower pivot. A wind turbine is installed on the nacelle 6. Specifically, the wind turbine has a hub 7 and blades 20. The blades 20 can be a three-blade or two-blade structure, which is not limited here. In this embodiment, a generator and a speed increaser are installed inside the nacelle 6. The generator is located below the speed increaser. The speed increaser has an input shaft 5 and an output shaft. The wind turbine hub 7 is mounted on the input shaft 5. In this embodiment, the speed increaser uses a multi-stage parallel shaft drive, with the input shaft 5 located at the top of the speed increaser and the output shaft located at the bottom. In other words, the input shaft 5 is installed at the top of the speed increaser, and the output shaft is installed at the bottom. The wind turbine is installed close to the downwind side of the tower 4. The advantage of this structural design is that the wind turbine is downwind, and when exposed to wind, the turbine blades 20 are far away from the tower 4, completely eliminating the risk of the turbine blades 20 sweeping the tower. In this embodiment, the horizontal base 1 is located on the ground, and the slewing bearing platform 2 is fixedly installed on the top of the horizontal base 1. The tower base 3 is fixedly installed on the slewing bearing platform 2. In some embodiments, the tower 4 is made of metal materials. For example, steel, aluminum alloy, etc., are not limited here.

[0033] Referring to Figures 3-5 As shown in the drawings, in the present embodiment, the top of the tower 4 is provided with a fixed pulley set 10 and a fixing device. Specifically, the fixed pulley set 10 is fixedly installed on the top of the tower 4 through a fixing frame 19. The number of fixed pulleys in the fixed pulley set 10 is two, and the two fixed pulleys are respectively located at the two ends of the fixing frame 19. The fixed pulley on any end of the fixing frame 19 is located inside the tower 4, and the fixed pulley on the other end of the fixing frame 19 is located outside the tower 4. With such a structure design, the crane can hoist the nacelle 6. The bottom of the tower 4 is provided with a crane. The crane has a hoisting rope 8. Specifically, the hoisting rope 8 of the crane is sequentially wound around the fixed pulley on one end of the fixing frame 19 inside the tower 4, the fixed pulley outside the tower 4, and then fixedly connected with the nacelle 6. The back of the tower 4 is provided with a limiting slide rail 9 arranged along the height direction of the tower 4. In the present embodiment, two limiting slide grooves parallel to each other are arranged on the limiting slide rail 9. The nacelle 6 is slidably fixedly installed on the limiting slide rail 9 through the fixing device. The nacelle 6 can be raised or lowered on the limiting slide rail 9 by the action of the crane, and the nacelle 6 is fixedly installed at any position on the limiting slide rail 9 by the fixing device. The fixing device is an electric caliper or an electromagnet.

[0034] The lower front side of the tower 4 is provided with a front cable rod 13 extending horizontally and outwardly. In the present embodiment, the number of front cable rods 13 is two. The tail of each of the two front cable rods 13 is fixedly installed on the tower 4 perpendicularly. The cable includes a first upper cable 15 and a first lower cable 16. The top end of the first upper cable 15 is fixedly installed on the upper part of the tower 4, and the bottom end of the first upper cable 15 is fixedly installed on the top of the front cable rod 13. The top end of the first lower cable 16 is fixedly installed on the top of the front cable rod 13, and the lower end of the first lower cable 16 is fixedly installed on the tower base 3. Similarly, in the present embodiment, the number of first upper cables 15 and first lower cables 16 is two. The top ends of the two first upper cables 15 are fixedly installed on the upper part of the tower 4 at the same time, the bottom ends of the two first upper cables 15 are fixedly installed on the top of the corresponding front cable rod 13 at the same time, the top ends of the two first lower cables 16 are fixedly installed on the top of the corresponding front cable rod 13 at the same time, and the lower ends of the two first lower cables 16 are fixedly installed on the tower base 3. The wind gathering device 11 is obliquely installed on the front side of the tower 4. Specifically, the top edge of the wind gathering device 11 is at the lowest point of the blade tip of the wind wheel blade 20, and the bottom edge of the wind gathering device 11 is fixed to the top end of the front cable rod 11.

[0035] In some embodiments, the left and right sides of the tower 4 are provided with horizontally and laterally extending side edge cable rods 14. The number of side cable rods 14 on each side is two, and each is vertically installed on the side edge of the tower 4. In the present embodiment, the cables further include two sets of second upper cables 17 and two sets of second lower cables 18. Any two second upper cables 17 form a set, and the top ends of the second upper cables 17 in the set are fixedly installed on the upper part of either side of the tower 4. The bottom ends of the second upper cables 17 in the set are fixedly installed on the top of the side edge cable rod 14 on either side. Any two second lower cables 18 form a set, and the top ends of the second lower cables 18 in the set are fixedly installed on the top of the side edge cable rod 14 on either side. The bottom ends of the two second lower cables 18 in the set are fixedly installed on the tower base 3. The other two second upper cables 17 form a set, and the top ends of the second upper cables 17 in the set are fixedly installed on the upper part of the other side of the tower 4. The bottom ends of the second upper cables 17 in the set are fixedly installed on the top of the side edge cable rod 14 on the other side. The other two second lower cables 18 form a set, and the top ends of the second lower cables 18 in the set are fixedly installed on the top of the side edge cable rod 14 on the other side. The bottom ends of the two second lower cables 18 in the set are fixedly installed on the tower base 3. This kind of structural design can effectively improve the stability of the tower 4. A horizontal rotating shaft 12 is installed on the tower base 3, and the rotating shaft 12 is located at the back of the tower 4. The tower 4 is installed in the bearing seat through the tower rotating shaft, and the bearing seat is installed in the tower base 3. The tower 4 is fixedly connected to the tower base 3 through the horizontal rotating shaft 12.

[0036] The principle of the wind power generation system in the present embodiment is that the tower rotating shaft is first installed in the bearing seat on the tower base 3, the tower 4 is vertically pulled after the two first lower cables 16 connected to the front cable rods 13 are pulled, the bottom of the tower 4 is fixed to the tower base 3 through bolts, after the tower 4 is installed, the nacelle 6 is installed into the limiting rail 9 at the lower part of the tower 4, the nacelle 6 is lifted to an appropriate height through the crane at the bottom of the tower 4, then the wind wheel blades 20 are hoisted and installed onto the hub 7, after the wind wheel is installed, the nacelle 6 is lifted to the top of the tower 4 through the crane, and is fixed and limited through the fixing device. After the nacelle 6 is completely installed, the wind wheel is in the downwind direction, and the wind flows through the tower 4 and then through the wind wheel. Since the tower 4 is a rectangular frame structure, the wind resistance is small, and the airflow disturbance is small.

[0037] Compared with the prior art, the embodiment has at least the following beneficial effects: the tower 4 has low manufacturing cost, light weight, and strong wind resistance; the wind wheel is in the downwind direction, and the wind wheel blades 20 are away from the tower 4 when the wind wheel is subjected to wind, thereby completely eliminating the risk of sweeping the tower by the wind wheel blades 20; the wind gathering device 11 is installed on the tower 4, which can increase the wind speed, reduce the vertical wind speed difference, improve the wind energy utilization rate and the overall stability of the wind turbine operation; the speed increasing box and the generator are arranged in the vertical direction, the center of gravity is low, the speed increasing box adopts multi-stage parallel shaft transmission, the structure is simple, and the manufacturing cost is low; the wind wheel and the nacelle 6 are convenient for self-hoisting and dismounting, and the installation and maintenance are very simple and convenient, thereby greatly reducing the installation and maintenance cost.

[0038] Embodiment 2

[0039] In the embodiment, the horizontal base 1 is installed on a semi-submersible floating platform on the sea.

[0040] Embodiment 3

[0041] In the embodiment, the tower base 3 is directly installed on a single-point mooring rotatable floating platform on the sea, and the slewing support platform 2 is not provided.

[0042] Embodiment 4

[0043] In the embodiment, the number of the speed increasing boxes and the generators is two.

[0044] Embodiment 5

[0045] In the embodiment, the wind wheel blades 20 adopt a double-layer structure arrangement, and the number of the wind wheel blades 20 in each layer is two.

[0046] Embodiment 6

[0047] As shown in Figures 1-5 , a mounting method of a wind power generation system is provided, which comprises the following steps:

[0048] Firstly, the tower rotating shaft is installed in the bearing seat on the tower base 3;

[0049] Secondly, the tower 4 is assembled in a whole in a horizontal manner, then the tower 4 is straightened by pulling the first pull cable 16, and then the tower 4 is fixedly connected to the tower base 3 through bolts;

[0050] Then, the nacelle 6 is installed at the bottom of the limiting rail 9 through the fixing device, the crane is started to drive the hoisting cable 8 to lift the nacelle 6 to a proper height, the wind wheel blade 20 is hoisted and installed on the wind wheel hub 7, after the wind wheel is installed, the crane continues to drive the hoisting cable 8 to lift the nacelle 6 to the top of the tower 4, and the nacelle 6 is fixed above the limiting rail 9.

[0051] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application. For example, the type of the generator, the shape or structure of the hub tower, etc. The technical scheme of the present application includes any combination of the above embodiments.

[0052] As can be seen by those skilled in the art after reading the present specification, the present application is constituted by combining the prior art, some of which is described in detail herein, and some of which is not described in detail for the sake of brevity of the specification, but which is known to those skilled in the art after reading the specification. Moreover, it can be seen by those skilled in the art that the combination of these prior arts for constituting the present application is full of a large amount of creative labor, and is the crystallization of years of theoretical analysis and a large amount of experiments by the inventors. It can also be seen from the specification by those skilled in the art that each technical scheme and any combination of the features disclosed herein belongs to a part of the present application.

Claims

1. A wind power generation system characterized by comprising: The utility model relates to a wind turbine, comprising: a cabin, a generator and a speed increaser are installed in the cabin, the generator is below the speed increaser, the speed increaser has an input shaft and an output shaft and adopts multi-stage parallel shaft transmission, the input shaft is at the top in the speed increaser, and the output shaft is at the bottom of the speed increaser; a wind wheel, the wind wheel has a wind wheel hub and a wind wheel blade, and the wind wheel hub is installed on the input shaft; a tower, the tower has a tower base, a bearing seat and a horizontal rotating shaft, the tower is installed in the bearing seat through a tower rotating shaft, the bearing seat is installed in the tower base, the top of the tower is provided with a fixed pulley set and a fixing device, the horizontal rotating shaft is installed at the back of the bottom of the tower, the tower is fixedly hinged on the tower base through the horizontal rotating shaft, the bottom of the tower is provided with a crane, the back of the tower is provided with a limiting slide rail arranged along the height direction of the tower, the cabin is slidably fixedly installed on the limiting slide rail through the fixing device, the hoisting rope of the crane is fixedly connected with the cabin after passing through the fixed pulley set and can drive the cabin to ascend or descend along the limiting slide rail, and the front side of the lower part of the tower is provided with a front cable rod extending horizontally and outwardly; cables, the cables comprise first upper cables and first lower cables, the top end of the first upper cable is fixedly installed at the upper part of the tower, the bottom end of the first upper cable is fixedly installed at the top of the front cable rod, the top end of the first lower cable is fixedly installed at the top of the front cable rod, and the lower end of the first lower cable is fixedly installed on the tower base; a wind gathering device, the wind gathering device is obliquely installed at the front side of the tower, the top edge of the wind gathering device is at the blade tip position of the wind wheel blade, and the bottom edge of the wind gathering device is fixed to the top end of the front cable rod.

2. The wind power generation system according to claim 1, characterized by Further comprising a horizontal base and a slewing bearing platform, the horizontal base is arranged on the ground, the slewing bearing platform is fixedly installed on the horizontal base, and the tower base is fixedly installed on the slewing bearing platform.

3. The wind power system according to claim 1 or 2, characterized in that, The left and right sides of the tower are provided with side cable rods extending horizontally and transversely, the cables further comprise two groups of second upper cables and two groups of second lower cables, any two second upper cables form a group, the top end of the group of second upper cables is fixedly installed at the upper part of any one side of the tower, the bottom end of the group of second upper cables is fixedly installed at the top of the side cable rod of the any one side, any two second lower cables form a group, the top end of the group of second lower cables is fixedly installed at the top of the side cable rod of any one side, and the lower ends of the two second lower cables of the group are fixedly installed on the tower base; the other two second upper cables form a group, the top end of the group of second upper cables is fixedly installed at the upper part of the other side of the tower, the bottom end of the group of second upper cables is fixedly installed at the top of the side cable rod of the other side, the other two second lower cables form a group, the top end of the group of second lower cables is fixedly installed at the top of the side cable rod of the other side, and the lower ends of the two second lower cables of the group are fixedly installed on the tower base.

4. The wind power generation system according to claim 1, characterized by: The tower is a rectangular frame structure or a triangular frame structure and is provided with a streamlined cover.

5. The wind power generation system according to claim 1, characterized by: The wind wheel is installed close to the lower windward side of the tower, and the nacelle is a flat rectangular frame structure.

6. The wind power generation system according to claim 1, characterized by The wind wheel blades are a three-blade structure or a two-blade structure.

7. The wind power generation system according to claim 1, characterized by The wind gathering device is composed of a rectangular frame and a cloth piece or a rectangular frame and a composite material sheet.

8. The wind power generation system according to claim 2, characterized by The wind power generation system is installed on a fixed offshore platform or a rotatable floating platform, and when the wind power generation system is installed on the rotatable floating platform, the slewing bearing platform under the tower base is cancelled.

9. The wind power generation system according to claim 1, characterized by The number of the first upper pull cables and the first lower pull cables is two, the top ends of the two first upper pull cables are fixedly installed on the upper part of the tower, the bottom ends of the two first upper pull cables are fixedly installed on the top of the front pull rod, the top ends of the two first lower pull cables are fixedly installed on the top of the front pull rod, and the bottom ends of the two first lower pull cables are fixedly installed on the tower base.

10. The wind power generation system according to claim 1 or 4, characterized by, The tower is made of metal material.

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