阅读说明：本技术 拴在地面上的高空风力发电站 (High-altitude wind power station tied on ground ) 是由 O.韦尔 于 2018-04-13 设计创作，主要内容包括：本发明涉及一种用于在不同的高度位置中产生电能的高空风力发电站,其具有与地面的柔性的连接件和包围承载气体的外壳,其中外壳至少部分地形成优选固定的叶片,并且多个转子安置在叶片中。(The invention relates to an overhead wind power station for generating electrical energy in different height positions, having a flexible connection to the ground and a housing enclosing a carrier gas, wherein the housing at least partially forms a preferably stationary blade and a plurality of rotors are arranged in the blade.)

1. High altitude wind power plant for generating electrical energy in different height positions, having a flexible connection (18) to the ground and a housing (14) enclosing a carrier gas, characterized in that the housing (14) at least partially forms a preferably stationary blade (10), and in that a plurality of rotors (12) are provided in the blade (10) for an energy generator, and in that the rotors (12) are arranged inside the blade (10).

2. The high altitude wind power plant according to claim 1, characterized in that the housing (14) and/or the flexible connecting piece (18) are manufactured from a material that is resistant to all wind and meteorological conditions occurring in the use position, in particular polyaramid.

3. High altitude wind power plant according to any of the preceding claims, characterized in that direction and elevators (38) are incorporated in or on the blade (10) in order to orient the blade (10).

4. High altitude wind power plant according to any of the preceding claims, characterized in that a machine room (32) is arranged in the blade (10), which machine room has a pressure chamber in order to generate an increased pressure in the machine room (32).

5. high altitude wind power plant according to any of the preceding claims, characterized in that a machine room (32) is provided in the blade (10) and that a thermal insulation layer (40) and/or heating means (36) are arranged around or in the machine room (32) in order to generate an increased temperature in the machine room (32).

6. High altitude wind power plant according to any of the preceding claims, characterized in that the blades (10) have special stabilizers (16) and/or air pipes (17) above and/or below the housing (14) for receiving carrier gas.

7. High altitude wind power plant according to claim 6, characterized in that the stabilizer (16) and/or the air pipe (17) are made of a tensile material.

8. High altitude wind power plant according to any of the preceding claims, characterized in that a current converter is provided in particular in the machine room (32) in order to convert and/or transform the generated current into another current type or flash.

9. High altitude wind power plant according to claim 8, characterized in that a faraday cage for current converters is provided in the blade (10).

10. High altitude wind power plant according to any of the preceding claims, characterized in that at least one pressure or hydraulic damper (20) is arranged between the blade (10) and the flexible connection in order to receive a part of the pulling force.

11. High altitude wind power plant according to claim 10, characterized in that a pressure or hydraulic damper (20) acts on the blade (10).

12. High altitude wind power plant according to any of the preceding claims, characterized in that an electromagnet (26) is fastened on the blade (10) in order to receive a part of the pulling force.

13. High altitude wind power plant according to any of the preceding claims, characterized in that the energy generator is a compressor for compressing air.

14. High altitude wind power plant according to claim 13, characterized in that one or more transmission devices are preceded by the compressor, so that the rotor (12) can drive the compressor.

15. The high altitude wind power plant according to any of the preceding claims, characterized in that one or more air hoses are provided for the transport of compressed air, which air hoses connect the compressor with a compressed air store on the ground surface, wherein the air hoses are in particular insulated.

16. The high altitude wind power plant according to claim 15, characterized in that the insulation of the air hose is achieved by krypton, aerogel or vacuum insulation.

Technical Field

The invention relates to an aerial wind power station for generating energy at different heights, having a flexible connection to the ground and an enclosure enclosing a carrier gas.

Background

High altitude wind power plants are known which comprise a wind rotor or rotor. The high-altitude wind power plant is also partly filled with helium or other gas lighter than air, so that the high-altitude wind power plant obtains a buoyancy effect. High altitude wind power plants are usually held by ropes anchored to the ground (US 2008/0290665 a 1).

High altitude wind power plants also exist in different forms, mostly in a circle. An aerial wind power station is formed from a substance or similar material, for example in a balloon or glider (DE 656194C).

The known high-altitude wind power plant is not, however, designed such that it remains at this altitude for a longer period of time and can withstand all wind and meteorological conditions.

Due to the fixed connection to the ground and the fact that all wind and meteorological conditions have to be supported by the structure for a longer period of time, for this purpose there must be wind-resistant and meteorological-resistant blades, which can also be automatically oriented in the wind direction.

furthermore, in large altitudes, the air pressure is significantly less than the air pressure on the earth's surface, and the average temperature is significantly less. This has the result that the electronic control units used hitherto for wind power generation are no longer effective.

The volume for receiving a carrier gas, such as helium, is bounded by the dimensions of the vanes.

If the current is generated in an overhead wind power plant, the current may be present in a current type that is not suitable for transmission. Furthermore, the current supply voltage cannot be adapted to the current transmission. If compressed air is produced in an aerial wind power plant, the compressed air must be transported in a suitable manner towards the surface.

another range of problems is fastening the rope to the blade. Due to the large pulling force, the rope must be adapted to receive this force.

Only one high-altitude wind power plant with a rotor has been known so far. This results in power being limited by the size of the rotor.

Disclosure of Invention

At least part of the problem is solved according to the invention in an overhead wind power plant for generating compressed air or electrical energy in different heights and having a flexible connection to the ground and a housing enclosing a carrier gas, in that the housing at least partially forms an aerodynamic blade and in that a plurality of rotors are arranged in the blade. Preferably, one or more transmissions are present between the one or more rotors and the one or more energy generators.

The invention relates to an overhead wind power plant which is fastened to the ground and is located in a high-altitude position between 2000m and 15000m, in particular between 8000m and 12000m (jetstream). The high-altitude wind power plant is designed for this purpose to utilize air velocities of 200 to 500km/h and to be held for a long time in such an altitude position. For this purpose, the outer shell is made of a tear-resistant surface so that it can withstand all weather conditions. The housing is equipped with a direction and an elevator. Furthermore, the carrier gas is located in the outer casing of the high altitude wind power plant. Likewise, pressure chambers for electronic components are located in the high-altitude wind power station.

In order to convert or transform the generated electrical energy, a transformer is located in the high altitude wind power plant. In order to generate compressed air, a compressor is provided, with one or more transmissions leading to the compressor. The air compressed by the compressor is conveyed towards the surface by means of an insulated air hose. On the surface, compressed air storage or potential energy storage is directly available. To generate the current, the compressed air reservoir is emptied and the generator is driven thereby. The efficiency is about 65% (including storage).

High altitude wind power plants, which must ensure constant energy production, must be able to withstand all wind and meteorological conditions. Accordingly, the housing and the anchoring line are constructed from a flexible and tensile material, in particular carbon fiber or polyaramid (Kevlar).

For this purpose, the rotor is arranged inside the blade, in order to be able to withstand hail damage, for example.

For this purpose, the blades must be made of a material that is stable with respect to the wind and weather, and at the same time has the ability to be adapted to the wind conditions. This is for example achieved by mounting a direction and height guiding mechanism that orients the blade.

By arranging the pressure chamber and the thermal insulation at least in a part of the blade, conditions of the control electronics ensuring proper operation can be achieved. Additionally, heating means may also be provided if desired.

In order to increase the volume of the carrier gas, the blades or special gas tanks in or on the blades are filled with carrier gas. The pressure in the blade or tank is increased, thereby increasing the volume of the carrier gas and the rigidity of the housing.

This current type is converted into another current type by a converter and the voltage or current intensity is changed as required. For safety reasons, this may occur in the blade in a faraday cage.

The transformer may also charge the energy storage so that a flash may be generated to convert the current.

In order to reduce the tensile force at the fastening point of the cable on the housing, a pretensioned hydraulic cylinder can be provided, which receives a portion of the force.

Alternatively or also additionally, an electromagnet can be provided, which can receive a further part of the energy.

To increase the power, a plurality of rotors are arranged in the blades.

Drawings

Further advantages, features and details of the invention emerge from the dependent claims and the subsequent description, in which particularly preferred embodiments of the invention are described with reference to the figures.

In the drawings:

FIG. 1 shows a front view of an aerial wind power plant;

FIG. 2 shows a longitudinal section II-II through the high altitude wind power plant according to FIG. 1; and

Fig. 3 shows a top view III of the high altitude wind power plant according to fig. 1.

Detailed Description

In fig. 1, a blade 10 in the form of a flying wing is seen in a front view. In this flying wing, a plurality of rotors 12 are present. The blade 10 is formed here by a casing 14 in which a stabilizer 16 filled with a carrier gas is arranged next to the rotor 12. Additional space for carrier gas is also located in an air tube 17 above and/or below the housing 14. The stabilizer 16 and/or the air tube 17 are made of a material that is resistant to tension depending on the type of meteorological balloon that may also receive the pressure of the expanding gas. The stabilizer 16 is inherently rigid and pressure-tight and acts as a carrier for the housing 14 and rotor 12. A support is likewise arranged frame-like in the housing 14 itself. The blade 10 is fastened to a retaining cable 18, wherein a hydraulic cylinder 20 is connected in the retaining cable 18. The retaining rope 18 diverges behind the hydraulic cylinder 20 and acts at a plurality of points on the shell 14 of the blade 10. The lateral ends of the blade 10 have winglets 22 for stabilization. The energy transmission takes place by means of an electric cable which is fastened to the retaining cable 18 behind the hydraulic cylinder 20. Finally, an electromagnet 26 can also be seen, which likewise serves to damp the blade 10.

Fig. 2 shows the blade 10 according to fig. 1 in a longitudinal section II-II. Visible is the rotor 12, which is located in the air tube 28. Two of the winglets 22 are shown on the end of the blade 10. In the air duct 28 there is a fastener 30 with which a machine room 32 is held. The holding cable 18 acts on the underside and the front end of the blade 10 with a pre-tensioned pressure or hydraulic cylinder 20 and an electromagnet and a cable 24. In the machine room 32 there is a transformer 34 and a heating device 36. The wind direction is shown with reference numeral 42.

Fig. 3 shows the blade 10 in a plan view. Shown on the side are winglets 22, which stabilize the blade 10. At the rear end of the blade 10 there is a lift and rudder 38. The machine room 32 is surrounded by a thermal insulator 40 and carries the shaft for the rotor 12.

The blade 10 is filled with propellant gas helium so that the entire weight of the blade 10 is carried by the helium. For this purpose, helium is filled into the stabilizer 16 of the blade 10. The blade 10 is connected to the surface by a retaining cable 18.

Wind flows through rotor 12 in direction 42, wherein rotor 12 drives a generator located within machine room 32, whereby wind energy is converted into electrical energy. The electrical energy is transmitted to the surface through a cable 24 secured to the retaining line 18. The power generated in the transformer 34 is varied in order to obtain a matched current type and voltage. Alternatively, a compressor may also be provided for generating compressed air, the compressor being driven by the rotor.

By means of the direction and the elevator 38, the blade 10 can optimally meet the wind. The winglet 22 improves the stability of the blade 10.

The inwardly disposed rotor 12 within the air tube 28 resists damage such as through hail. Furthermore, the air is optimally delivered to the rotor 12. Here, the air tube 28 may be provided with an air guide plate, and the adjacent rotors 12 may also be moved in opposite directions.

The machine room 32 embodied as a pressure chamber and the heating device 36 can produce environmental conditions, which occur, for example, on the ground. For this purpose, thermal insulation 40 is additionally used around or in the machine room 32.

In order to receive the pulling force caused by the wind, the pre-tensioned pressure or hydraulic cylinder 20 receives a part of the mechanical energy. The other part may be received by a connected electromagnet 26. The electromagnet 26 takes electrical energy from the generator. The electromagnet 26 is switched on only when required.

The generated compressed air is conducted to the surface by means of one or more air hoses and stored there or converted into another type of energy, for example electrical energy. The air hose is secured to a retaining cord 18.