Power generation equipment based on wind, light and heat multi-energy coupling

Abstract

The invention relates to the technical field of clean energy power generation, in particular to power generation equipment based on wind, light and heat multi-energy coupling. The power generation equipment comprises a vertical axis wind power generation and heat dissipation device, a photovoltaic and temperature difference power generation composite device, a double-axis tracking device and a tower type supporting frame. The vertical axis wind power generation and heat dissipation device captures wind energy through the impeller assembly so as to drive the driving assembly and drive the heat dissipation assembly to rotate at a high speed, and active heat dissipation is provided for the photovoltaic and thermoelectric power generation composite device. The photovoltaic and thermoelectric power generation composite device comprises a monocrystalline silicon photovoltaic cell, a first annular plate, a second annular plate and a plurality of aluminum extrusion type cooling fins, light energy can be effectively utilized, and waste heat collection and thermoelectric power generation are achieved. According to the power generation equipment, structural support is provided by the tower type supporting frame, and the comprehensive utilization efficiency of energy in unit space is remarkably improved through coupling utilization of wind energy, light energy and heat energy.

Description

Technical Field

[0001] The present invention relates to the field of clean energy power generation technology, and specifically to a power generation device based on wind, solar and thermal multi-energy coupling. Background Art

[0002] Against the backdrop of growing global energy demand and increasingly prominent environmental issues, the unsustainable and highly polluting nature of traditional fossil fuels has driven the accelerated development of renewable energy technologies. Existing technologies struggle to meet the demand for stable and efficient power supply through a single energy source. Photovoltaic power generation is affected by the day and weather, with output plummeting on rainy days. Wind power generation suffers from power instability due to fluctuating wind speeds. Thermoelectric power generation relies on consistent temperature differences and generally has an efficiency of 4%-8%. In areas rich in wind, solar, and thermal resources, a separate system layout requires large floor space and high maintenance costs. Independent operation of multiple systems also prevents efficient resource utilization.

[0003] Existing wind-solar hybrid systems alleviate intermittent power supply issues to a certain extent, but they fail to address the efficiency degradation caused by high-temperature operation of photovoltaic modules and the challenges of waste heat recovery. Thermoelectric power generation technology suffers from inefficient cold-end heat dissipation and lacks synergistic design with wind-solar systems, making it difficult to achieve a complementary effect. Furthermore, existing multi-energy coupling systems have low integration levels, facing technical bottlenecks such as inefficient thermal management and irrational equipment layout. Therefore, the comprehensive utilization of multiple renewable energy sources for efficient power generation, achieving complementary advantages and reducing costs, is urgently needed to improve the stability and reliability of energy supply. Summary of the Invention

[0004] In order to solve the problems of limited energy utilization synergy and inefficient thermal management in the existing technology, the present invention provides a power generation equipment based on wind, solar and thermal multi-energy coupling.

[0005] To achieve the above-mentioned objectives, the technical solution provided by the present invention is as follows: providing a power generation device based on wind, solar and thermal multi-energy coupling, comprising a vertical-axis wind power generation and heat dissipation device, a photovoltaic and thermoelectric power generation device, a dual-axis tracking device and a tower support frame. The vertical-axis wind power generation and heat dissipation device is disposed on the tower support frame and comprises an impeller assembly, a drive assembly and a heat dissipation assembly, the impeller assembly being transmission-connected to the drive assembly, and the drive assembly being transmission-connected to the impeller assembly; the photovoltaic and thermoelectric power generation device is disposed in the middle and lower portion of the tower support frame and comprises a plurality of monocrystalline silicon photovoltaic cells, a first annular plate, a second annular plate and a plurality of aluminum extruded heat sinks, the monocrystalline silicon photovoltaic cells being disposed above the first annular plate, the second annular plate being disposed below the first annular plate, the aluminum extruded heat sinks being disposed below the second annular plate, and the second annular plate comprising thermoelectric power generation fins; and the dual-axis tracking device is disposed below the photovoltaic and thermoelectric power generation device and is used to adjust the spatial orientation of the monocrystalline silicon photovoltaic cells.

[0006] The impeller assembly includes a support rod and several impellers. The drive assembly includes a generator, a first transmission rod, a gear transmission, and a second transmission rod. The heat dissipation assembly includes lightweight axial flow blades. The impeller is rigidly connected to one end of the generator shaft via the support rod. The other end of the generator shaft is connected to the top of the first transmission rod. The bottom end of the first transmission rod is connected to the top of the second transmission rod via the gear transmission to achieve mechanical speed increase. The bottom end of the second transmission rod is equipped with lightweight axial flow blades to provide active heat dissipation for the photovoltaic cell assembly.

[0007] The second annular plate includes a heat transfer metal plate and a thermoelectric generator sheet. The heat transfer metal plate is attached to the back of the first annular plate, transferring heat collected by sunlight to the hot end of the thermoelectric generator sheet. The upper surface of the extruded aluminum heat sink is attached to the cold end of the thermoelectric generator sheet, thereby conducting heat and achieving thermoelectric power generation, optimizing heat dissipation efficiency.

[0008] The dual-axis tracking device includes a movable connection, a first drive member, a second drive member and a support connection member. The movable connection member is fixedly installed on the second annular plate near the hole. The first drive member is connected to the movable connection member through a reduction gear to achieve pitch angle adjustment of the monocrystalline silicon photovoltaic cell. The support connection member is fixedly installed on the cross bar of the tower support frame. The second drive member is connected to the support connection member through a reduction gear to achieve horizontal angle adjustment of the monocrystalline silicon photovoltaic cell.

[0009] Optionally, the five impellers are respectively fixed on support rods, and the inclination angle between the impellers and the support rods is adjustable; the five pairs of support rods are fixed on a flange, and the flange is connected to one end of the generator shaft.

[0010] Optionally, the gear speed change device is fixed to the crossbar at the top of the tower support frame through a flange.

[0011] Optionally, the thermoelectric power generation sheet is integrated under the heat transfer metal plate, and its base material can be made of bismuth telluride-based nanocomposite material with excellent thermoelectric properties to achieve efficient energy conversion in micro-temperature difference scenarios.

[0012] Optionally, the lightweight axial flow fan blades are arranged directly below the plurality of aluminum extruded heat sinks.

[0013] Beneficial effects of the present invention:

[0014] 1. The present invention realizes the efficient conversion and comprehensive utilization of multiple energy sources within a unit area through the coordinated design of the vertical axis wind power generation and heat dissipation device and the photovoltaic and thermoelectric power generation composite device, combined with wind drive heat dissipation technology and dual-axis tracking technology.

[0015] 2. Through dual-degree-of-freedom precision tracking, the average daily effective illumination time of monocrystalline silicon photovoltaic cells is extended, significantly improving the efficiency of light energy conversion. During the daytime when there is sufficient sunlight and weak wind, the photovoltaic power generation components maximize the capture of solar energy through the dual-axis tracking device. At the same time, the thermoelectric power generation panels integrated on the back of the monocrystalline silicon photovoltaic cells convert the generated waste heat into electricity, forming a solar-thermal synergistic power generation mode. During the nighttime period, the vertical-axis wind turbine continues to operate, and the thermoelectric power generation panels cooperate with the gradient release of the heat stored during the day, effectively compensating for the intermittent defects of a single energy source and significantly reducing the volatility of the overall power output.

[0016] 3. Real-time tracking of sunlight is achieved through the cooperation of photosensors and dual-axis tracking devices, while waste heat collection and temperature difference power generation are achieved.

[0017] 4. The vertical axis impeller drives the generator while driving the second transmission rod and the lightweight axial flow fan blades to rotate. Under the action of the gear speed change device, the rotation speed of the lightweight axial flow fan blades is increased, and the Coanda effect is used to form a wall-attached airflow on the lower surface of the aluminum extruded heat sink. The heat dissipation efficiency is significantly improved compared with natural convection, which is conducive to maintaining the temperature difference between the hot end and the cold end, and ensuring the stability of the temperature difference power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the technical principles of the present invention.

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic structural diagram of a wind, solar, and thermal multi-energy coupling power generation device according to an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a vertical axis wind power generation and heat dissipation device according to an embodiment of the present invention;

[0022] Figure 3 A schematic top view of a photovoltaic and thermoelectric power generation composite device according to an embodiment of the present invention

[0023] Figure 4 This is a bottom schematic diagram of a photovoltaic and thermoelectric power generation composite device according to an embodiment of the present invention;

[0024] Figure 5 A partial cross-sectional schematic diagram of a photovoltaic and thermoelectric power generation composite device according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic structural diagram of a dual-axis tracking device according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the operation of a power generation device based on wind, solar and thermal multi-energy coupling according to an embodiment of the present invention.

[0027] Description of Reference Numerals

[0028] 1. Vertical axis wind power generation and heat dissipation device; 11. Support rod; 12. Impeller; 13. Generator; 14. First transmission rod; 15. Gear speed change device; 16. Second transmission rod; 17. Lightweight axial flow fan blade; 2. Photovoltaic and thermoelectric power generation composite device; 21. Monocrystalline silicon photovoltaic cell; 22. Photosensor; 23. First annular plate; 24. Second annular plate; 241. Heat transfer metal plate; 242. Thermoelectric power generation sheet; 25. Aluminum extruded heat sink; 3. Dual-axis tracking device; 31. Active connector; 32. First drive member; 33. Second drive member; 34. Support connector; 4. Tower support frame. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] like Figure 1 As shown, this embodiment provides a power generation device based on wind, solar and thermal multi-energy coupling, including a vertical axis wind power generation and heat dissipation device 1, a photovoltaic and thermoelectric power generation composite device 2, a dual-axis tracking device 3 and a tower support frame 4. The vertical axis wind power generation and heat dissipation device 1 is arranged on the tower support frame 4. Specifically, in the embodiment of the present application, the vertical axis wind power generation and heat dissipation device 1 is installed at the central axis position of the tower support frame 4. The tower support frame 4 serves as the load-bearing body of the entire device and adopts a multilateral truss structure design with high strength and lightweight characteristics. Each component realizes three-level energy synergistic conversion through structural optimization and energy transfer design.

[0031] like Figure 2As shown, the vertical axis wind power generation and heat dissipation device 1 includes an impeller assembly, a drive assembly, and a heat dissipation assembly. The impeller assembly is transmission-connected to the drive assembly, which is in transmission-connected to the impeller assembly. The impeller assembly includes a support rod 11 and several impellers 12. The drive assembly includes a generator 13, a first transmission rod 14, a gear transmission 15, and a second transmission rod 16. The heat dissipation assembly includes lightweight axial flow blades 17. The impeller 12 is fixed to the support rod 11, which is fixed to a flange and connected to one end of the generator 13's rotating shaft. It converts wind energy into mechanical energy, driving the generator 13 to generate electricity. The other end of the generator 13's rotating shaft is connected to the top of the first transmission rod 14. The bottom end of the first transmission rod 14 is connected to the top of the second transmission rod 16 via a speed-increasing gear set of the gear transmission 15. The second transmission rod 16 drives the lightweight axial flow blades 17 to rotate, generating an axial airflow to promote heat dissipation from the photovoltaic module. The power generation and energy storage methods of the generator 13 are conventional in the art, and its operating principles are not described in detail here.

[0032] Preferably, the number of impellers 12 and support rods 11 is three or more. In the embodiment of the present application, the number of impellers 12 and support rods 11 is five, and the five impellers 12 are respectively fixed to the support rods 11, and the inclination angle between the impellers 12 and the support rods 11 is adjustable; the five pairs of support rods 11 are fixed to a flange, and the flange is connected to one end of the rotating shaft of the generator 13.

[0033] In the embodiment of the present application, the support rod 11 serves as the main load-bearing structure of the impeller 12, and transmits the wind load evenly to the tower support frame 4 through a truss design. A flange connector is provided at the end thereof to ensure a rigid connection between the impeller 12 and the transmission system, thereby ensuring stable power generation of the equipment during operation.

[0034] In the embodiment of the present application, the gear speed change device 15 is fixed to the crossbar at the top end of the tower support frame 4 through a flange.

[0035] As a feasible implementation method, the gear speed change device 15 converts the low-speed wind energy captured by the impeller 12 into high-speed rotational power, drives the lightweight axial flow fan blades 17 to rotate at high speed, and uses the generated forced airflow to dissipate heat for the temperature difference power generation system, thereby realizing the dual functional coordination of wind power generation and device heat dissipation.

[0036] Combine Figure 1 、 Figure 3 and Figure 4As shown, the photovoltaic and thermoelectric power generation device 2 includes several monocrystalline silicon photovoltaic cells 21, photosensors 22, a first annular plate 23, a second annular plate 24, and aluminum extruded heat sinks 25. The photovoltaic and thermoelectric power generation device 2 is mounted in the lower middle portion of the tower support frame 4. The monocrystalline silicon photovoltaic cells 21 are arranged in a ring array above the first annular plate 23. Several photosensors 22 are embedded in the gaps between the arrays, symmetrically arranged on the surface of the first annular plate 23. The second annular plate 24 is arranged below the first annular plate 23 and includes a heat transfer metal plate 241 and thermoelectric power generation sheets 242. Several aluminum extruded heat sinks 25 are arranged in an array below the second annular plate 24.

[0037] Further optimized, the monocrystalline silicon photovoltaic cell 21 cooperates with the first annular plate 23 and is stacked with the second annular plate 24. The position design ensures that the photovoltaic component is protected from light obstruction, and at the same time utilizes the bottom cavity of the tower support frame 4 to form a vertical heat dissipation channel.

[0038] like Figure 5 As shown, the second annular plate 24 forms a thermoelectric coupling structure with the first annular plate 23 provided with a monocrystalline silicon photovoltaic cell 21. The heat transfer metal plate 241 is tightly attached to the back of the first annular plate 23, and conducts the heat concentrated by sunlight to the hot end of the thermoelectric power generation sheet 242. The upper surface of the aluminum extruded heat sink 25 is attached to the cold end of the thermoelectric power generation sheet 242, which is used to significantly optimize the heat dissipation efficiency.

[0039] For further optimization, the aluminum extruded heat sink 25 is linked with the lightweight axial flow fan blade 17 to form a forced heat dissipation channel, and continuous airflow is used to promote heat dissipation at the cold end of the thermoelectric power generation sheet 242, thereby forming a stable temperature difference between the hot end and the cold end, and using the Seebeck effect to achieve continuous conversion of thermal energy into electrical energy.

[0040] Combine Figure 4 、 Figure 6 As shown, the dual-axis tracking device 3 includes a movable connecting member 31, a first driving member 32, a second driving member 33, and a supporting connecting member 34. The movable connecting member 31 serves as the top actuator. Its plate-shaped body is provided with a plurality of arrayed circular holes for connection to the lower surface of the second annular plate 24 near the holes. The movable connecting member 31 receives the rotational torque of the first driving member 32 through a toothed disc sleeved on the horizontal rotating shaft at its lower portion, thereby achieving pitch angle adjustment of the monocrystalline silicon photovoltaic cell 21. The second driving member 33 is arranged in the middle of the structure and is connected to the toothed disc via a rotating shaft to achieve horizontal angle adjustment of the monocrystalline silicon photovoltaic cell 21. The supporting connecting member 34 is a circular base with four groups of bolt mounting holes evenly distributed on its surface, which is used to secure the entire structure to the tower support frame 4.

[0041] Optionally, the first driving member 32 and the second driving member 33 may be stepping motors.

[0042] For further optimization, the dual-axis tracking device 3 also includes a controller (not shown), which receives the input signal provided by the photosensor 22, and drives the first driving member 33 and / or the second driving member 33 through the control circuit according to the difference in the input signal provided by the photosensor 22, and synchronously drives the array-distributed monocrystalline silicon photovoltaic cells 21 to achieve dual-degree-of-freedom adjustment of the horizontal azimuth angle and the pitch altitude angle, so that the photovoltaic module is always perpendicular to the direction of incidence of the sun, thereby capturing light energy to the greatest extent and improving the light energy conversion efficiency.

[0043] Optionally, the power supply of the dual-axis tracking device 3 can be provided by an external power supply.

[0044] like Figure 7 As shown, the core part of a power generation device based on wind, solar and thermal multi-energy coupling provided by this embodiment includes a vertical axis wind power generation and heat dissipation device 1, a photovoltaic and thermoelectric power generation composite device 2 and a dual-axis tracking device 3, which together realize the coordinated utilization of wind energy, solar energy and thermal energy. While driving the generator 13 to generate electricity, the impeller 12 drives the lightweight axial flow fan blades 17 to rotate through the gear speed change device 15, forming an axial airflow to promote effective heat dissipation of the thermoelectric power generation sheet 242. The dual-axis tracking device 3 drives the single crystal silicon photovoltaic cell 21 to achieve two degrees of freedom adjustment in the spatial direction according to the difference in light signals detected by the photosensor 22, so as to track the angle of sunlight in real time and maximize the efficiency of light energy capture. During operation, the power generation equipment performs multi-stage power generation by the generator 13, the monocrystalline silicon photovoltaic cell 21 and the thermoelectric power generation sheet 242. The generated electric energy is adjusted in voltage and current by the wind-solar-thermal complementary controller and then transmitted to the battery pack for storage; the DC power output by the battery pack is converted into AC power that meets the grid standards through the inverter, and finally connected to the public power grid through the grid-connected interface, realizing efficient utilization and stable output of multi-energy coupled power generation.

[0045] In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. Similarly, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. In addition, terms such as "hot end" and "cold end" and "one end" and "the other end" are relative and are used only to describe the relative relationship of components or structures in specific functions or positions, and do not indicate absolute temperature states or fixed positions. They are only used to facilitate the description and distinction of different functional areas or connection points.

[0046] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments described herein, but is to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A power generation device based on wind, solar and thermal multi-energy coupling, characterized in that: include: Tower support frame (4); A vertical axis wind power generation and heat dissipation device (1) is arranged on a tower support frame (4), wherein the vertical axis wind power generation and heat dissipation device (1) comprises an impeller assembly, a drive assembly, and a heat dissipation assembly, wherein the impeller assembly is in transmission connection with the drive assembly, and the drive assembly is in transmission connection with the impeller assembly; A photovoltaic and thermoelectric power generation composite device (2) is arranged at the middle and lower part of the tower support frame (4), the photovoltaic and thermoelectric power generation composite device (2) comprising a plurality of single-crystal silicon photovoltaic cells (21), a first annular plate (23), a second annular plate (24) and a plurality of aluminum extruded heat sinks (25), the single-crystal silicon photovoltaic cells (21) being arranged above the first annular plate (23), the second annular plate (24) being arranged below the first annular plate (23), the aluminum extruded heat sink (25) being arranged below the second annular plate (24), and the second annular plate (24) comprising a thermoelectric power generation sheet (242); A dual-axis tracking device (3) is provided below the photovoltaic and thermoelectric power generation composite device (2) and is used to adjust the spatial orientation of the monocrystalline silicon photovoltaic cell (21).

2. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 1 is characterized in that: The impeller assembly comprises a support rod (11) and a plurality of impellers (12), wherein the impellers (12) are fixed on the support rod (11); The drive assembly comprises a generator (13), a first transmission rod (14), a gear speed change device (15) and a second transmission rod (16), wherein the support rod (11) is connected to one end of the generator (13) rotating shaft, the other end of the generator (13) rotating shaft is connected to the top end of the first transmission rod (14), and the bottom end of the first transmission rod (14) is connected to the top end of the second transmission rod (16) via a speed-increasing gear set of the gear speed change device (15); The heat dissipation assembly includes a lightweight axial flow fan blade (17), and the bottom end of the second transmission rod (16) is connected to the lightweight axial flow fan blade (17), so that the generator (13) drives the lightweight axial flow fan blade (17) to rotate.

3. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 1 is characterized in that: The second annular plate (24) further includes a heat transfer metal plate (241), which is attached to the back of the first annular plate (23) so that the heat collected by sunlight is conducted to the hot end of the thermoelectric power generation sheet (242), and the upper surface of the aluminum extruded heat sink (25) is attached to the cold end of the thermoelectric power generation sheet (242).

4. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 1 or 3, characterized in that: The aluminum extruded heat sink (25) and the lightweight axial flow fan blade (17) are linked to form a forced heat dissipation channel, and the continuous airflow generated by the lightweight axial flow fan blade (17) is used to promote heat dissipation at the cold end of the temperature difference power generation sheet (242).

5. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 1 is characterized in that: The dual-axis tracking device (3) comprises a movable connecting member (31), a first driving member (32), a second driving member (33) and a supporting connecting member (34); the movable connecting member (31) is connected to the second annular plate (24); the first driving member (32) is used to adjust the pitch angle of the monocrystalline silicon photovoltaic cell (21); the second driving member (33) is used to adjust the horizontal angle of the monocrystalline silicon photovoltaic cell (21); and the supporting connecting member (34) is used to fix the dual-axis tracking device (3) on the tower support frame (4).

6. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 1 or 5, characterized in that: The photovoltaic and thermoelectric power generation composite device (2) further comprises a photosensor (22), wherein the photosensor (22) is used to detect the direction of sunlight and provide an input signal for the dual-axis tracking device (3).

7. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 6 is characterized in that: The dual-axis tracking device (3) further includes a controller, which is used to receive the input signal and drive the first driving member (33) and / or the second driving member (33) through a control circuit to drive the single-crystal silicon photovoltaic cell (21) to achieve dual-degree-of-freedom adjustment of the horizontal azimuth angle and the pitch altitude angle, so that the surface of the single-crystal silicon photovoltaic cell (21) is perpendicular to the incident direction of sunlight.

8. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 6 is characterized in that: The photosensor (22) is embedded in the gaps between the plurality of single crystal silicon photovoltaic cells (21).

9. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 6 or 8, characterized in that: A plurality of light-sensitive sensors (22) are symmetrically arranged on the surface of the first annular plate (23).

10. The wind, solar, and thermal multi-energy coupling power generation equipment according to claim 1 or 8, characterized in that: A plurality of the monocrystalline silicon photovoltaic cells (21) are arranged in a ring array; A plurality of the aluminum extruded heat sinks (25) are arranged below the second annular plate (24) in an array manner.

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