Low-altitude, middle-altitude and high-altitude wind power generation device and group

Abstract

The invention discloses a low-altitude, middle-altitude and high-altitude wind power generation device and group, the low-altitude, middle-altitude and high-altitude wind power generation device comprises a helium balloon, a cable and a base, and the helium balloon floats in the high altitude; the upper end of the cable is connected with the helium balloon, and the lower end of the cable is connected into the current collection cabinet in the base; a plurality of parachutes are fixed on the cable at intervals, and at least one of the helium balloon and the parachutes is connected with the base through an inhaul cable; the helium balloon, the base and the parachutes divide the cable into a plurality of sections, and a plurality of wind-induced pulse pressure generators are uniformly distributed on each section of the cable; the wind-induced pulse pressure generator comprises a circular ring and a wind swing assembly, the circular ring is fixedly sleeved on the cable, a piezoelectric material is fixed on the outer side surface of the circular ring, and the piezoelectric material is connected with a wire core of the cable through a branch wire; the wind swing assembly swings along with wind to apply pulse pressure to the piezoelectric material so that the piezoelectric material can generate electric energy. The limitation of single-height wind energy development is broken through, and meanwhile high-voltage power transmission can be achieved based on the series voltage accumulation effect.

Description

Technical Field

[0001] The present invention relates to a wind power generation device, in particular to a low-altitude, medium-altitude and high-altitude wind power generation device and a group thereof. Background Art

[0002] Wind power generation devices include onshore wind turbines, offshore wind turbines, and aerostat-type wind power generation devices. Onshore and offshore wind turbines generate electricity by harvesting low-altitude wind energy, while aerostat-type wind power generation devices utilize aerostats to lift the wind power generation device to high altitudes, harvesting high-altitude wind energy for power generation. Currently, no device can simultaneously harvest low, medium, and high-altitude wind energy for power generation. Furthermore, existing high-altitude wind power generation devices suffer from high energy losses when transmitting electricity from high altitude to the ground. Summary of the Invention

[0003] Purpose of the invention: The first purpose of the present invention is to provide a wind power generation device that can simultaneously collect low, medium and high altitude wind energy to generate electricity and transmit the generated electricity to the ground at high voltage; the second purpose of the present invention is to provide a group of such wind power generation devices.

[0004] Technical solution: The present invention provides a low, medium and high altitude wind power generation device, comprising a helium balloon, a parachute, a cable, a wire and a base, wherein the helium balloon floats in the air and the base is fixed to the ground;

[0005] The upper end of the cable is connected to the helium balloon, and the lower end of the cable is connected to the collector cabinet busbar in the base through a terminal block. Several parachutes are fixed to the cable at intervals, and at least one of the helium balloon and the several parachutes is connected to the base via a cable. The helium balloon, the base, and the several parachutes divide the cable into several sections, and several wind-induced pulse pressure generators are evenly distributed on each section of the cable.

[0006] The wind-induced pulse pressure generator includes a ring and a wind pendulum assembly. The ring is sleeved and fixed on the cable. Piezoelectric material is fixed on the outer side of the ring. The piezoelectric material is connected to the core inside the cable through a branch wire. The wind pendulum assembly can swing with the wind, applying pulse pressure to the piezoelectric material, so that the piezoelectric material generates electrical energy based on the piezoelectric effect. The generated electrical energy is transmitted to the core through the branch wire, and then transmitted to the collector cabinet through the core. Based on the principle of series voltage accumulation, the cable can realize high-voltage transmission of the electrical energy generated by each wind-induced pulse pressure generator.

[0007] Furthermore, the wind pendulum assembly adopts a flag-type wind pendulum assembly, which includes a small flag, a stainless steel anchor ring precast on the outside of the piezoelectric material, and the small flag is connected one by one to multiple stainless steel anchor rings precast on the outside of the piezoelectric material through multiple ropes.

[0008] Furthermore, the small flag is covered with a photovoltaic film, and the branch wires also pass through the piezoelectric material and connect to the photovoltaic film. The electric energy generated by the photovoltaic film is transmitted to the wire core through the branch wires; the part of the branch wires passing through the piezoelectric material is woven inside the rope to form an "umbrella rope" structure.

[0009] Furthermore, the wind pendulum assembly adopts an umbrella-type wind pendulum assembly, which includes a small parachute, a stainless steel anchor ring precast on the outside of the piezoelectric material, and multiple ropes connected to the edge of the small parachute. The multiple ropes merge into one and are connected to the stainless steel anchor ring precast on the outside of the piezoelectric material.

[0010] Furthermore, the small parachute is covered with a photovoltaic film, and the branch wires also pass through the piezoelectric material and connect to the photovoltaic film. The electric energy generated by the photovoltaic film is transmitted to the core through the branch wires; the part of the branch wires passing through the piezoelectric material is woven inside the rope to form a "parachute rope" structure.

[0011] Furthermore, a winch, a gearbox and a generator set are provided in the base, and the lower end of the cable is wrapped around and fixed on the surface of the winch drum. The cable can drag the winch drum to rotate when the helium balloon and parachute move with the wind, and then transmit power to the input shaft of the generator set through the gearbox.

[0012] Furthermore, the upper end of the cable is connected to the helium balloon through a tethered balloon adapter, or is directly fixed to the parachute through an umbrella rope.

[0013] Furthermore, the ring is bonded to the cable, and the piezoelectric material is bonded to the outer side of the ring.

[0014] Furthermore, the vertical spacing between adjacent parachutes is 50 to 100 meters.

[0015] A wind power generation group of the present invention includes the above-mentioned low, medium and high altitude wind power generation devices. Several low, medium and high altitude wind power generation devices are arranged in an array distribution or multi-point irregular distribution according to the terrain to achieve networked power generation.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0017] (1) The present invention ensures the stability of the entire wind power generation device through helium balloons, parachutes and cables, and continuously collects low, medium and high altitude wind energy for power generation through wind-induced pulse pressure generators distributed in series on cables. Pulse pressure power generation has good energy capture capabilities even in low wind speed environments, thus breaking through the limitations of traditional single-altitude wind energy development.

[0018] (2) Wind-induced pulse pressure generators are connected in series along the cable. Based on the series voltage accumulation effect, taking a single wind-induced pulse pressure generator as an example, which can generate a voltage of 1.2 to 2V, several thousand volts of high voltage can be generated depending on the height of the device. High-voltage power transmission can significantly reduce energy transmission losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a low-, medium-, and high-altitude wind power generation device provided by an embodiment of the present invention;

[0020] Figure 2 2 is a schematic structural diagram of a flag-type wind pendulum assembly according to an embodiment of the present invention;

[0021] Figure 3 2 is a schematic structural diagram of an umbrella-shaped wind pendulum assembly according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of a cross section of a cable and a ring in an embodiment of the present invention;

[0023] Figure 5 This is a diagram of the power generation principle of a wind power generation device according to an embodiment of the present invention;

[0024] Figure 6 It is a top view of a wind power generation group in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Attachment Figures 1 to 6 The reference numerals in the figures are as follows:

[0027] 1. Helium balloon; 2. Parachute; 31. Flag-type wind pendulum assembly; 32. Umbrella-type wind pendulum assembly; 322. Rope; 4. Drag line; 5. Cable; 51. Ring; 511. Piezoelectric material; 52. Wire core; 521. Branch wire; 6. Base.

[0028] Example 1

[0029] like Figure 1 As shown, Example 1 provides a low, medium and high altitude wind power generation device, including a helium balloon 1, a parachute 2, a cable 4, a cable 5 and a base 6.

[0030] Base 6, constructed of high-strength concrete and anchored to a foundation structure, such as the ground or an offshore platform, provides stable support for the entire power generation device. A helium balloon 1 floats aloft, while the upper end of cable 5 connects to the balloon via a dedicated adapter for tethered balloons. The lower end of cable 5 connects to the busbars of the collector cabinet within base 6 via a terminal block, collecting the collected electrical energy.

[0031] Several parachutes 2 are fixed to the cable 5 at intervals, with the vertical spacing between adjacent parachutes 2 being 50 to 100 meters to prevent overlapping and entanglement between the parachutes 2 and ensure that each parachute 2 can be fully deployed. In this embodiment, the parachutes 2 at medium and low altitudes are made of nylon material, while the parachutes 2 at high altitudes are made of aramid fiber material.

[0032] A winch, a gearbox, and a generator set are provided in the base 6. In this embodiment, a cable 4 is connected to the helium balloon 1 and each parachute 2, respectively. The upper end of the cable 4 is connected to the helium balloon 1 via a tethered balloon adapter, or is directly fixed to the parachute 2 via an umbrella rope. The lower end of the cable 4 is wound around and fixed to the surface of the winch drum. When the helium balloon 1 and the parachute 2 move with the wind, the cable 4 can drag the winch drum to rotate, converting wind energy into mechanical energy. The rotational power of the winch drum is transmitted to the input shaft of the generator set through the gearbox, ultimately completing the conversion of mechanical energy into electrical energy. The electrical energy generated by the generator set is collected in the collector cabinet.

[0033] In practice, the number of cables 4 can be one or more, depending on the stability of the low-, medium-, or high-altitude wind turbine generators. When one cable is used, the cable 4 can be connected to either the helium balloon 1 or the parachute 2. In this embodiment, the cable 4 is made of aramid fiber, which offers excellent tensile strength, fatigue resistance, and lightweight properties.

[0034] The cable 4 effectively resists the lateral force exerted by wind on the entire generator, significantly reducing the swaying amplitude and displacement risk of the entire generator in strong winds and enhancing the stability of the entire generator. Furthermore, it fully utilizes the traction force exerted by wind on the cable 4 to generate electricity, thereby improving the utilization rate of wind energy.

[0035] The helium balloon 1, base 6, and several parachutes 2 divide the cable 5 into several sections. Several wind-induced pulse pressure generators are evenly distributed on each section of the cable 5. Each wind-induced pulse pressure generator includes a ring 51 and a wind pendulum assembly, which is a flag-shaped wind pendulum assembly 31 or an umbrella-shaped wind pendulum assembly 32.

[0036] Combine Figure 3 and Figure 4 The cable 5 has a core 52 inside. The core 52 is made of a highly conductive metal material, such as high-purity electrolytic copper, to reduce resistance and lower losses during power transmission. The ring 51 is sleeved on the cable 5 and bonded to the cable 5 with an adhesive. A piezoelectric material 511 is bonded and fixed to the outer side of the ring 51. The piezoelectric material 511 is connected to the core 52 by a branch wire 521. In this embodiment, the ring 51 is made of polyetheretherketone (PEEK).

[0037] During implementation, the insulation layer at the connection point of cable 5 is first stripped, and then the branch conductor 521 is connected to the core 52 through a crimping process. A heat-shrinkable insulation sleeve is placed on the connection point of cable 5, and the branch conductor 521 is passed outward through the heat-shrinkable insulation sleeve. After heat shrinking, the heat-shrinkable insulation sleeve forms a whole with the insulation layer of cable 5. Next, the ring 51 is placed on the cable 5 and the branch conductor 521 is passed outward through the ring 51. The ring 51 is bonded to the cable 5, and the bonding also serves to seal the perforated area. Finally, the exposed end of the branch conductor 521 is connected to the piezoelectric material 511, and the piezoelectric material 511 is bonded to the outer side of the ring 51.

[0038] The umbrella-shaped wind pendulum assembly 32 includes a small parachute, and a stainless steel anchor ring is pre-cast on the outside of the piezoelectric material 511. The edge of the small parachute is connected to multiple ropes 322 by sewing or binding. The multiple ropes 322 are merged into one by a twisting device (the twisting device is a prior art) and a metal ring is made at the end by crimping. The metal ring is connected to the stainless steel anchor ring pre-cast on the outside of the piezoelectric material 511 by a pin. The small parachute is covered with a photovoltaic film, and the branch conductor 521 also passes through the piezoelectric material 511 and is connected to the photovoltaic film. Sealant is applied to the perforation to ensure sealing. The electric energy generated by the photovoltaic film is transmitted to the core 52 through the branch conductor 521. The part of the branch conductor 521 that passes through the piezoelectric material 511 is woven into the inside of the rope 322 to form a "parachute rope" structure.

[0039] Combine Figure 2 The flag-type wind pendulum assembly 31 includes a small flag. A stainless steel anchor ring is precast on the outside of the piezoelectric material 511. The small flag is connected to the multiple stainless steel anchor rings precast on the outside of the piezoelectric material 511 through multiple ropes 322. The ends of the ropes 322 are also crimped to form metal rings, which are then connected to the stainless steel anchor rings via pins. The small flag is covered with a photovoltaic film, which is connected to the core 52 via a branch conductor 521. The branch conductor 521 is connected to the piezoelectric material 511 in the same manner as the umbrella-type wind pendulum assembly 32. The electrical energy generated by the photovoltaic film is transmitted to the core 52 via the branch conductor 521; the portion of the branch conductor 521 that passes through the piezoelectric material 511 is woven into the rope 322 to form an "umbrella rope" structure. The shape of the small flag can be flexibly designed according to aerodynamic requirements and power generation performance requirements, such as rectangular, triangular, or streamlined, to optimize its force in the wind and improve wind energy capture efficiency.

[0040] In this embodiment, the small parachute and the small flag are preferably made of degradable materials.

[0041] Combine Figure 5In windy conditions, the wind pendulum components swing with the wind. The flag-shaped wind pendulum component 31 swings flexibly and vibrates at high frequencies, while the umbrella-shaped wind pendulum component 32 swings pendulum-like and rotates spirally. These components apply pulsed pressure to the corresponding piezoelectric material 511, causing it to generate electricity based on the piezoelectric effect. This generated electricity is transmitted to the core 52 via branch conductors 521, and then to the power collection cabinet via the core 52. In sufficient sunlight, the photovoltaic film captures solar energy and converts it into electricity, which is then transmitted to the core 52 via branch conductors 521. This achieves the complementary utilization of wind and solar energy, significantly improving the overall energy utilization efficiency.

[0042] It should be noted that the vertical spacing of umbrella-shaped wind pendulum assemblies 32 must be arranged based on their diameters, while flag-shaped wind pendulum assemblies 31 can be arranged continuously, without requiring protective spacing between adjacent flag-shaped wind pendulum assemblies 31. Because the wind-induced pulse pressure generators are connected in series along the cable 5, according to the principle of series voltage superposition, assuming each wind-induced pulse pressure generator generates 1.2 to 2V, as the height of the entire generator increases, a voltage of several thousand volts can ultimately be achieved. This significantly reduces transmission losses along the way and enables efficient energy collection and output.

[0043] Example 2

[0044] Example 2 provides a wind power generation group, including a number of low, medium and high altitude wind power generation devices, which are arranged in an array distribution to achieve network power generation. Figure 6 As shown, low-, medium-, and high-altitude wind turbines are arranged in multiple rows, with multiple rows evenly spaced apart. The rows are arranged in a staggered, non-aligned pattern. Of course, depending on the terrain, multiple low-, medium-, and high-altitude wind turbines can also be arranged in an irregular, multi-point distribution to achieve networked power generation.

[0045] The present invention collects wind energy and converts it into electrical energy and transmits it to the ground. Then, the point distribution of each low, medium and high altitude wind energy generation device in the wind energy generation group and the networking between different wind energy generation devices can refer to existing onshore wind turbines.

Claims

1. A low, medium and high altitude wind power generation device, characterized in that: The invention comprises a helium balloon (1), a parachute (2), a cable (4), a wire (5) and a base (6), wherein the helium balloon (1) floats in the air and the base (6) is fixed on the ground; The upper end of the cable (5) is connected to the helium balloon (1), and the lower end of the cable (5) is connected to the collector busbar in the base (6) through a terminal block; a plurality of parachutes (2) are fixed at intervals on the cable (5), and the helium balloon (1) and at least one of the plurality of parachutes (2) are connected to the base (6) through a cable (4); the helium balloon (1), the base (6) and the plurality of parachutes (2) divide the cable (5) into a plurality of sections, and a plurality of wind-induced pulse pressure generators are evenly distributed on each section of the cable (5); The wind-induced pulse pressure generator comprises a ring (51) and a wind pendulum assembly, wherein the ring (51) is sleeved and fixed on the cable (5), a piezoelectric material (511) is fixed on the outer side of the ring (51), and the piezoelectric material (511) is connected to the core (52) inside the cable (5) via a branch conductor (521); the wind pendulum assembly can swing with the wind, exerting pulse pressure on the piezoelectric material (511), so that the piezoelectric material (511) generates electric energy based on the piezoelectric effect, and the generated electric energy is transmitted to the core (52) via the branch conductor (521), and then transmitted to the collector cabinet via the core (52); based on the principle of series voltage accumulation, the cable (5) can realize high-voltage transmission of the electric energy generated by each wind-induced pulse pressure generator.

2. The low, medium and high altitude wind power generation device according to claim 1 is characterized in that: The wind pendulum assembly adopts a flag-type wind pendulum assembly (31), which includes a small flag. A stainless steel anchor ring is precast on the outside of the piezoelectric material (511). The small flag is connected one by one to the stainless steel anchor rings precast on the outside of the piezoelectric material (511) through multiple ropes (322).

3. The low, medium and high altitude wind power generation device according to claim 2, characterized in that: The small flag is covered with a photovoltaic film, and the branch conductor (521) further passes through the piezoelectric material (511) and is connected to the photovoltaic film. The electric energy generated by the photovoltaic film is transmitted to the core (52) via the branch conductor (521); the portion of the branch conductor (521) passing through the piezoelectric material (511) is woven into the interior of the rope (322), forming a "parachute line" structure.

4. The low, medium and high altitude wind power generation device according to claim 1, characterized in that: The wind pendulum assembly adopts an umbrella-shaped wind pendulum assembly (32), which includes a small parachute, a stainless steel anchor ring precast on the outside of the piezoelectric material (511), a plurality of ropes (322) connected to the edge of the small parachute, and the plurality of ropes (322) merge into one and are connected to the stainless steel anchor ring precast on the outside of the piezoelectric material (511).

5. The low, medium and high altitude wind power generation device according to claim 4, characterized in that: The small parachute is covered with a photovoltaic film, and the branch conductor (521) also passes through the piezoelectric material (511) and is connected to the photovoltaic film. The electric energy generated by the photovoltaic film is transmitted to the core (52) via the branch conductor (521); the part of the branch conductor (521) passing through the piezoelectric material (511) is woven into the rope (322) to form a "parachute rope" structure.

6. The low, medium and high altitude wind power generation device according to claim 1, characterized in that: A winch, a gearbox and a generator set are arranged in the base (6); the lower end of the cable (4) is wound around and fixed to the surface of the winch drum; the cable (4) can drag the winch drum to rotate when the helium balloon (1) and the parachute (2) move with the wind, and then transmit power to the input shaft of the generator set through the gearbox.

7. The low, medium and high altitude wind power generation device according to claim 1, characterized in that: The upper end of the cable (4) is connected to the helium balloon (1) through a tethered balloon adapter, or is directly fixed to the parachute (2) through an umbrella rope.

8. The low, medium and high altitude wind power generation device according to claim 1, characterized in that: The circular ring (51) is bonded to the cable (5), and the piezoelectric material (511) is bonded to the outer side of the circular ring (51).

9. The low, medium and high altitude wind power generation device according to claim 1, characterized in that: The vertical distance between adjacent parachutes (2) is 50 to 100 m.

10. A wind power generation group, characterized in that: It comprises a number of low, medium and high altitude wind power generation devices as described in any one of claims 1 to 9, wherein the low, medium and high altitude wind power generation devices are arranged in an array distribution or multi-point irregular distribution according to the terrain to realize network power generation.

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