WO2011026256A1

WO2011026256A1 - System and method for high altitude wind power generation

Info

Publication number: WO2011026256A1
Application number: PCT/CN2009/000998
Authority: WO
Inventors: 李泉洞; 李越秀; 李越峰; 李时清; 石宏元
Original assignee: 北京奇想创新科技中心
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2011-03-10
Also published as: CN102472252A

Abstract

A system and method for high altitude wind power generation is provided. The system comprises an electrical field base configuration composed of an inner annular structure girder (8) and an outer annular structure girder (7), which are connected by spokes (23) to become an integral rigid structure; a buoyancy lift balloon (13) located in the inner annular structure girder (8); multiple groups of single unit wind power generators (9) distributed uniformly in the outer annular structure girder (7); an elevation and subsidence apparatus of wind power equipment (16) connected with the electrical field base configuration to control its elevation and subsidence; and a power transmission and transformation device (3) connected with the wind power generators (9) to transmit power to ground from the wind power generators (9).

Description

High-altitude wind power generation system and method

Technical field

The invention relates to a wind power generation device, in particular to a high altitude wind power field system device. Background technique

Energy crises and environmental protection require clean renewable energy, and wind power is valued by countries around the world. Existing wind power generation equipment generally uses low-level wind energy with a height of about 100 meters. The wind power density in this high area is generally in the range of 100 watts per square meter with limited wind resources. According to relevant reports, the wind power density can be as high as 10 kW/m2 at a height of more than 1,000 meters, especially at an altitude of 6,000 meters to 12,000 meters. The use of wind resources in this region should be an urgent task in the field of wind power technology to meet the needs of human beings for clean renewable energy worldwide. However, there is no realistic technical solution and application practice to utilize the wind resources in this ultra-high wind power density region. To utilize wind resources in this ultra-high wind power density region, the present invention provides high altitude wind farm system equipment to meet the human needs for clean renewable energy worldwide. Invention disclosure

The technical problem to be solved by the present invention is to provide a high-altitude wind farm system and an implementation method thereof, thereby realizing a high-power large-scale wind farm and improving the efficiency of wind power generation.

To achieve the above object, the present invention provides a high-altitude wind farm system characterized by comprising: an electric field foundation structure, an integral rigid structure formed by an inner annular structural beam and an outer annular structural beam connected by spokes;

a floating balloon disposed within the inner annular structural beam;

a plurality of sets of single wind turbines, uniformly disposed on the outer annular structural beam;

a wind power equipment lifting device connecting the electric field infrastructure to perform lifting control of the electric field infrastructure;

A power transmission and transformation device is connected to the wind turbine to deliver electric energy provided by the wind turbine to the ground.

The above-mentioned high-altitude wind farm system is characterized in that the plurality of sets of single-machine wind turbines are arranged symmetrically on the outer annular structure beam. The above-mentioned high-altitude wind farm system is characterized in that: the upper and lower ends of the floating balloon are respectively provided with a spherical cap shell which is matched with the floating balloon, and the circumferences of the upper and lower spherical caps are uniformly arranged. a floating balloon fixing rope, the other end of the fixing rope is fixedly connected to the outer annular structural beam, and the floating balloon is fixed on the outer annular structural beam by the spherical cap shell and the lifting ball fixing rope on.

The above-mentioned high-altitude wind farm system is characterized in that: the floating balloon adopts a sub-storage structure, the outer layer of the floating balloon is woven by a high-strength organic rope, and the net cover is a high-strength fabric cover. A plurality of sealed elastic balloons are disposed in the fabric sleeve.

The above-mentioned high-altitude wind farm system is characterized in that: the wind power equipment lifting device comprises: a plurality of hanging ropes, one end of which is uniformly disposed at a periphery of the outer annular structural beam;

a line of lifting ropes, one end of which is wound and connected to a lifting and hoisting device disposed on the ground, and the other end is fixedly connected to the hoisting rope;

A lifting hoisting device is disposed on the ground of the corresponding high-altitude wind power generating device for controlling the lifting of the high-altitude wind power generating equipment by the mooring rope.

The above-mentioned high-altitude wind farm system is characterized in that it further comprises a high-altitude wind power equipment positioning device for cooperating with the wind power equipment lifting device to fix the high-altitude wind power equipment on a predetermined vertical center line; the high-altitude wind power equipment positioning The device includes:

a plurality of positioning hoisting devices, centered on the lifting and hoisting device, uniformly disposed on the ground around the lifting and hoisting device;

A plurality of fiber-retaining ropes, one end of each of the fiber-retaining ropes is fixedly connected to the outer annular structural beam, and the other end is wound and connected to a corresponding positioning hoisting device on the ground.

The above-mentioned high-altitude wind farm system is characterized in that it further comprises a ground support platform for installation, maintenance and evasion of hurricanes of air-to-air power equipment.

The above-mentioned high-altitude wind farm system is characterized in that: the single-machine wind turbine includes: a barrel-shaped outer casing; - an internal portion of a contraction-conduction intake manifold, a linear-conduction intake manifold, and a diffusion-conducting exhaust pipe connected in sequence Thin shell structure;

The barrel-shaped outer casing and the inner thin-shell structure are connected into a lightweight overall structure by a suspended spoke structure;

A turbine type wind power generation device is disposed in the linear flow guiding intake pipe.

The above-mentioned high-altitude wind farm system, characterized in that the single-machine wind turbine further comprises: a tail fin fixed to the barrel-shaped outer casing by a tail bracket;

A slewing device is mounted at an end of a vertical connecting beam connecting the upper and lower two symmetrically arranged wind turbines, and is connected to the single wind turbine.

The above-described high-altitude wind farm system, characterized in that the turbine-type wind power plant further includes a turbine, a fluid coupler, and a generator that are sequentially mounted on a turbine shaft, wherein the turbine is fixedly equipped with a plurality of turbine blades, The fluid coupling couples the turbine and the generator; the generator connects the fluid coupling and the power transmission and transformation device.

The present invention also provides a method for implementing the above-described high-altitude wind farm system, characterized in that it comprises the following steps:

Providing an integral rigid structure formed by an inner annular structural beam and an outer annular structural beam connected by spokes as an electric field basic structure;

A plurality of sets of single wind turbines are uniformly disposed on the outer annular structural beam of the electric field infrastructure; 'providing a floating balloon to float the wind power equipment including the electric field infrastructure and the plurality of sets of single wind turbines to a high altitude;

Providing a wind power equipment lifting device for lifting control of the wind power equipment;

A power transmission and transformation device is provided to deliver the electric energy provided by the wind turbine to the ground.

Compared with the prior art, the high-altitude wind farm system provided by the present invention can adjust the height of the air wind power equipment at any time according to the needs, so that the air wind power equipment reaches the optimal height and can capture the random high wind power density wind energy; The turbine can directly drive the generator to reduce the size of the equipment, improve the manufacturing, installation and maintenance process; improve the wind power efficiency; light structure of the suspended spoke thin shell; simplify the equipment, reduce the cost; can cope with the hurricane; increase the single wind turbine Power generation capacity, to achieve high-power large-scale wind farms, to make a new attempt to use wind resources in high-altitude ultra-high wind power density areas. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a front view showing the layout of a high-altitude wind farm system according to the present invention;

2 is a top plan view showing the layout of a high-altitude wind farm system according to the present invention;

Figure 3 is a partial enlarged view of part I of Figure 2;

Figure 4 is a partial enlarged view of the portion II of Figure 1;

Figure 5 is a partial enlarged view of the portion III of Figure 1;

Figure 6 is a cross-sectional view taken along line P - P of Figure 3; Figure 7 is a partial enlarged view of the IV portion of Figure 6;

Figure 8 is a partial enlarged view of the portion V of Figure 4;

9 is a flow chart of a method of implementing the high altitude wind farm system of the present invention. Wherein, the reference numeral is - 1 a - air wind power equipment in a high-altitude power generation state

Lb Airborne wind power equipment on the ground

2—Tethered lifting rope

3-transmission cable

4 series of fiber rope

5—Cable fiber rope hoisting equipment

6—Ground support platform

7—External ring structure beam

8—Internal ring structure beam

9 a single wind turbine

10—horizontal wing

12—tail

13—Floating balloon

14 ball crown

15—Floating balloon fixing rope

16—lifting and lifting equipment

17—Cable reel

18—Cable fiber rope guide wheel

19 series of fiber-reinforced rope hoisting machine room

20—Cable fiber rope hoist guide rope

21—Cable fiber rope hoist

22—Airborne wind power equipment lanyard

23—Connecting spokes

24—shrinkage diversion intake manifold

25—Internal fluid guide

26—front airflow guide plate 27—Linear draft tube

28—Drum-shaped shell

29—turbine

30—Hydraulic coupler

31—generator

32—Airflow guide plate

33—slewing device

34—spoke structure

35—Diffusion diversion exhaust pipe

36—tail bracket

37—Tethered lifting rope hoisting machine room

38—Tethered lifting rope winch

39—Tethered lifting rope hoist guide rope

40—Tethered lifting rope guide wheel. The best way to implement the invention

The present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

The invention provides a high-altitude wind power farm system, comprising: an electric field basic structure, a floating balloon rising from the electric field basic structure to an upper air, and a plurality of sets of single-machine wind power groups uniformly disposed on the electric field basic structure, and the electric field basic structure A wind power equipment lifting device that performs lifting control to deliver power supplied by the wind turbine to the ground power transmission and transformation device.

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

1 and 2 are respectively a front view and a top view of a layout of a high-altitude wind farm system according to the present invention; showing a system layout of a high-altitude wind farm of the present invention, which comprises a plurality of sets of single-machine wind turbines by using a rope-retaining giant floating balloon 13 The air wind power equipment la is suspended to the upper air, making full use of the wind resources in the ultra-high wind power density area. Installation and maintenance of airborne wind turbines la can be carried out on its ground support platform 6 to simplify lifting procedures and equipment. The air wind power equipment la can also avoid the hurricane intrusion damage on this ground support platform 6. In the figure, lb shows the air wind power equipment in the ground to avoid state.

Figure 3 is a partial enlarged view of the portion I in Figure 2, Figure 4 and Figure 5 are the ankle and the third portion of Figure 1, respectively. A partial enlarged view of FIG. 3 is a cross-sectional view of the P-P in FIG. Referring to Figures 3 to 6, the electric field infrastructure of the present invention is an integral rigid structure formed by an inner annular structural beam 8 and an outer annular structural beam 连接 through connecting spokes 23 as an integral base structure for installing airborne wind power equipment. , a plurality of sets of single wind turbines 9 are uniformly disposed on the outer annular structural beam 7.

The floating balloon 13 is disposed within the inner annular structural beam 8, which defines the vertical centerline position of the floating balloon 13, but allows the floating balloon 13 to be displaced up and down. The upper and lower ends of the rising balloon 13 are provided with a spherical cap shell 14 which is matched with the spherical cap shell 14 . The outer edges of the upper and lower spherical cap shells 14 are uniformly provided with a plurality of floating balloon fixing ropes 15 , and the other end of the floating balloon fixing rope 15 is fixed. Attached to the outer annular structural beam 7, the floating balloon 13 is fixed to the outer annular structure by a spherical cap shell 14, and a plurality of uniformly distributed floating balloon fixing cords connected to the spherical cap shell and the outer annular structural beam. On the beam 7. The outer layer of the floating balloon 13 is a mesh woven by a high-strength organic rope, and the mesh cover is a high-strength fabric cover. A plurality of sealed elastic balloons are arranged in the fabric sleeve, and the shape of the elastic balloon is plastic, and after filling, fills the inner space of the entire floating balloon. This splitting structure ensures that after the individual balloons leak, the overall floating balloon can continue to work.

Figure 7 is a partial enlarged view of the IV portion of Figure 6, with reference to Figures 3, 4 and 7, showing a specific arrangement of multiple sets of single-machine wind turbines 9 arranged vertically, each set of two sets of single-machine wind turbines, through a a vertical beam fixed on the outer annular structural beam 7 is arranged symmetrically on the outer annular structural beam 7 and is respectively located at the upper and lower ends of the vertical beam, and a rotating device 33 is further disposed at the upper and lower ends of the vertical beam. The single wind turbine 9 also has a tail 12, and the single wind turbine can adjust the orientation with the wind direction through the swinging device 33 and the 3 fins 12 to obtain the best wind power effect in the wind. The multiple sets of single-machine wind turbines 9 adopt a scheme of symmetrical arrangement up and down, which not only improves the stress state of the outer ring-shaped structural beam 7, but also multiplies the number of single-machine wind turbines 9. The rotary device 33 comprises a rotary guide rail, a rotary wheel and a rotary wheel support, wherein the rotary wheel guide rail is an annular guide rail, and the rotary wheel is connected by a rotary wheel support and a single wind turbine, and the rotary wheel can be driven by the wind. Running on the swing rail.

Referring to FIG. 7 again, the single-machine wind turbine 9 includes: a barrel-shaped outer casing 28; an inner thin shell composed of a contraction-conduction intake manifold 24, a linear-conduction intake manifold 27, and a diffusion-conducting exhaust pipe 35 connected in sequence. The structure, the barrel-shaped outer casing 28 and the inner thin shell structure are connected by a suspended spoke structure 34 into a lightweight overall structure, and the tail end 12 is connected to the tail end of the barrel-shaped outer casing 28 of the unitary structure by a tail bracket 36; The vertical beams of the two sets of stand-alone generator sets are arranged to extend into the barrel-shaped outer casing 28 through a hole provided in the barrel-shaped outer casing 28, and the swinging device 33 is brought close to the horizontal center line of the single-unit generator set 9 in order to reduce the slewing device 33. Overturning moment load. The single wind turbine is also equipped with water The flat wing 10 is used to assist the floating balloon 13 in stabilizing the attitude and increasing the auxiliary lift.

The present invention employs a multi-blade turbine type wind power generation apparatus in which a turbine type wind power generation apparatus is disposed. The turbo wind power generation apparatus further includes: a turbine 29, a fluid coupling 30 and a generator 31 which are sequentially mounted on the turbine shaft, a plurality of turbine blades fixed to the turbine 29, and the turbine 29 and the generator are connected by the fluid coupling 30 31 to improve the starting performance of the turbine power plant. The utility model adopts a wind driven machine with a multi-blade turbine structure, and the turbine 29 has a high rotating speed under the high wind speed, so that the wind power generating device can avoid the complicated speed increasing and speed regulating device which is difficult to avoid by the general wind power generating device, and directly drives the wind power generating device. The generator 31 greatly simplifies the wind power generation equipment and greatly reduces the size of the wind power generation equipment, thereby improving the manufacturing, installation and maintenance processability of the equipment.

The wind disaster wheel power generating device of the invention further comprises an internal fluid guiding body 25 and a front air flow guiding plate

26. Rear airflow guide plate 32. The inner fluid guide 25 is composed of a head and a tail connected by a turbine shaft, the turbine 29 is disposed between the head and the tail of the fluid guide, and the fluid coupling 30 and the generator 31 are installed at the tail of the fluid guide 25 The front airflow guide plate 26 is disposed at the front end of the linear draft tube 27, and can serve as a support for the head of the fluid guide 25 for guiding the airflow from the axial direction to the circumferential tangential direction of the rotation of the turbine 29, The ideal angle is blown to the turbine blade to drive the turbine 29 to rotate, to obtain the best use of wind energy, and to improve the wind power generation efficiency; the rear airflow guide plate 32 is disposed at the rear end of the linear guide tube 27, and is located at the front airflow guide plate 26 Thereafter, it can double as a support for the tail of the fluid guide 25, and the rear airflow guide plate 32 and the diffusing diversion exhaust pipe 35 improve the airflow aerodynamic characteristics to improve the efficiency of the turbine power plant.

Referring again to Figures 4, 6, and 8, in the present invention, the air-conditioning equipment is lifted and lowered by the wind power equipment lifting device. The height of the air wind power equipment la can be adjusted as needed to make the air wind equipment la reach the optimal height and capture the random high wind power density wind energy. The wind power equipment lifting device comprises a plurality of hanging ropes 22, a mooring lifting rope 2 and a lifting and hoisting device 16, wherein one end of the plurality of hanging ropes 22 is uniformly fixedly connected to the outer annular structural beam 7, and the other end It is connected with the mooring rope 2; one end of the mooring rope 2 is connected to a plurality of hanging ropes, and the other end is wound to connect the lifting and lowering device 16. The lifting and hoisting device 16 further comprises: a lifting hoist 38, a hoisting rope guide 39, a mooring rope guiding wheel 40, the mooring rope 2 is sequentially tethered by the lifting rope guiding wheel 40, and the hoist rope guiding device 39 is wound and connected. The lift hoist 38 can also be placed in a mooring hoisting machine room 37 to reduce the impact of climate change on the operation.

In order to ensure that the high-altitude wind power equipment is at a high altitude, the invention also includes a high-altitude wind power equipment positioning device. S uses a plurality of fiber-retaining cords 4 arranged along the periphery of the outer annular structural beam 7 to fix the air-wind power equipment la on a predetermined vertical center line through a plurality of positioning hoisting devices 5 having a constant output torque, without generating fluttering, and ensuring more The positioning hoisting device 5 cooperates with the lifting hoisting device 16. Among them, a plurality of positioning hoisting devices 5 are arranged on the ground around the lifting hoisting device 16 centering on the lifting hoisting device 16. Referring to Fig. 5, one end of the root fiber-retaining cord 4 is fixedly attached to the outer annular structural beam 7, and the other end is passed through the tethered rope guide wheel 18, and the tethered rope guide 20 is wound and connected to the tethered cord hoist 21. A line of fiber-reinforced rope hoisting machines 19 can also be provided to reduce the impact of climate change on operations.

The power transmission and transformation device of the invention adopts a high voltage "AC-DC-AC" mode for power rectification and transformation. Referring to Figure 8, the supplied electrical energy is sent to the ground through the transmission cable 3, and the transmission cable 3 is retracted by the cable reel 17. The transmission of electrical energy can also be achieved by means of a microwave conversion device.

The present invention also provides a method of implementing the above system, comprising the steps of:

Step S901, providing an integral rigid structure formed by an inner annular structural beam and an outer annular structural beam through the spokes as an electric field basic structure;

Step S902, uniformly setting a plurality of sets of single-machine wind turbines on an outer annular structural beam of the electric field infrastructure;

Step S903, providing a floating balloon to raise the wind power equipment including the electric field infrastructure and the plurality of sets of single wind turbines to a high altitude;

Step S904, providing a wind power equipment lifting device to perform lifting control on the wind power equipment;

Step S905, providing a power transmission and transformation device to deliver the electric energy provided by the wind turbine to the ground. Although the present invention has been described above in terms of a preferred embodiment, it is not intended to limit the present invention, and those skilled in the art can make various corresponding embodiments according to the present invention without departing from the spirit and scope of the invention. Changes and modifications of the invention are intended to be included within the scope of the appended claims.

Claims

Claim

A high-altitude wind farm system, characterized in that it comprises:

An electric field infrastructure is an integral rigid structure formed by an inner annular structural beam and an outer annular structural beam connected by spokes;

a floating balloon disposed within the inner annular structural beam;

2. The high-altitude wind farm system according to claim 1, wherein the plurality of sets of single-machine wind turbines are vertically symmetrically arranged uniformly on the outer annular structural beam.

The high-altitude wind farm system according to claim 1, wherein the upper and lower ends of the floating balloon are respectively provided with a spherical cap shell that matches the floating balloon, and the upper and lower spherical caps are respectively provided. a plurality of floating balloon fixing cords disposed uniformly around the circumference of the shell; the other ends of the fixing cords are fixedly coupled to the outer annular structural beam, and the floating balloon is fixed by the spherical cap shell and the lifting ball fixing rope The outer annular structure beam.

4. The high-altitude wind farm system according to claim 3, wherein the floating balloon adopts a binning structure, and an outer layer of the floating balloon is woven by a high-strength organic rope, the net cover Inside is a high-strength fabric sleeve in which a plurality of sealed elastic balloons are disposed.

The high-altitude wind farm system according to claim 1, wherein the wind power equipment lifting device comprises:

a plurality of hanging lanyards, one end of which is uniformly disposed on a periphery of the outer annular structural beam;

6. The high-altitude wind farm system according to claim 5, further comprising a high-altitude wind power equipment positioning device for cooperating with the wind power equipment lifting device to fix the high-altitude wind power equipment at a predetermined vertical center The high-altitude wind power equipment positioning device includes: a plurality of positioning hoisting devices, centered on the lifting and hoisting device, uniformly disposed on the ground around the lifting and hoisting device;

7. The high altitude wind farm system of claim 1 further comprising a ground support platform for installation, maintenance and evasion of hurricanes in the air wind power installation.

8. The high-altitude wind farm system according to claim 1, wherein the single-machine wind turbine comprises:

a barrel-shaped outer casing;

An internal thin shell structure composed of a contraction diversion intake manifold, a linear diversion intake manifold, and a diffusion diversion exhaust duct;

9. The high-altitude wind farm system according to claim 8, wherein the single-machine wind turbine further comprises a tail fin fixed to the barrel-shaped outer casing by a tail bracket;

A slewing device is mounted on the end of a vertical connecting beam connecting the upper and lower two symmetrically arranged single-machine wind turbines, and is connected to the single-machine wind turbine.

A method for implementing a high-altitude wind farm system according to any one of claims 1 to 9, characterized in that it comprises the following steps:

Uniformly arranging a plurality of sets of single wind turbines on the outer annular structural beam of the electric field infrastructure; providing a floating balloon to float the wind power equipment including the electric field infrastructure and the plurality of sets of single wind turbines to a high altitude;