Multi-energy cooperative power generation platform integrating wind energy, solar energy, rainwater potential energy and wave energy

Abstract

The invention provides a multi-energy cooperative power generation platform integrating wind energy, solar energy, rainwater potential energy and wave energy, and belongs to the technical field of clean energy power generation. The platform comprises a wind power generation assembly, a solar photovoltaic power generation assembly, a multi-stage potential energy power generation assembly, a wave energy power generation assembly, a power storage system, a tower and a cabin. The tower is tubular-column-shaped, the top is provided with a cabin, and the bottom is fixed on the seabed or floats on the sea surface and is used for connecting the power generation assemblies; the wind power generation assembly is located at the upper end of the tower, the solar photovoltaic power generation assembly is located outside the tower, the multi-stage potential energy power generation assembly comprises a multi-stage potential energy power generation device arranged in the tower and a rainwater collection device integrated with the cabin, and the wave energy power generation assembly is used for generating electric energy through wave fluctuation. The electricity storage system is located in the tower to store electric energy. The multi-dimensional space-time complementation is realized by integrating four types of energy, the power supply continuity is improved, the space utilization rate is improved by multiplexing the supporting structure, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of clean energy power generation technology, specifically to a multi-energy collaborative power generation platform integrating wind energy, solar energy, rainwater potential energy, and wave energy. Background Technology

[0002] In the development of clean energy at sea, wind power, as a mature technology, has achieved large-scale application. Offshore wind turbines improve wind energy capture efficiency by optimizing the aerodynamic shape of the blades. However, these traditional wind turbines focus only on the single energy utilization of wind, leaving the outer surface and internal space of the tower idle for a long time without considering the synergistic development with other energy forms, resulting in a waste of space resources. At the same time, the application of solar photovoltaic power generation technology in nearshore areas is becoming increasingly widespread. Current solar photovoltaic power generation involves installing photovoltaic panels on offshore platforms to utilize solar energy. However, independent photovoltaic platforms require additional support structures, leading to increased infrastructure costs. Furthermore, the lack of integration with wind power systems prevents them from leveraging the complementary advantages of energy.

[0003] While existing multi-energy combined power generation technologies have been explored to some extent, such as wind-wave energy combined platforms that achieve dual-energy synergy through shared infrastructure, significant limitations remain: the utilization of solar and rainwater potential energy is not incorporated, and the potential energy contained in marine solar resources and precipitation processes remains untapped, resulting in low overall energy utilization efficiency; distributed independent energy systems suffer from fundamental defects—the intermittent superposition of wind, solar, and wave energy leads to a continuous deterioration in power supply stability, while independent deployment models significantly increase initial investment and operation and maintenance costs due to redundant infrastructure construction; especially in operating environments far from the coast, traditional technologies are limited by platform space constraints and cannot simultaneously integrate wind energy capture, photovoltaic power generation, rainwater potential energy conversion, and wave energy hydraulic systems, ultimately resulting in low resource utilization and high electricity costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-energy collaborative power generation platform that integrates wind energy, solar energy, rainwater potential energy, and wave energy. It aims to solve problems such as the waste of space resources caused by traditional wind turbines that only utilize wind energy, the high cost of independent energy systems due to repeated construction, and the lack of a collaborative control mechanism for existing multi-energy combined power generation technologies that do not cover solar energy and rainwater potential energy.

[0005] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0006] An integrated multi-energy synergistic power generation platform combining wind, solar, rainwater potential energy, and wave energy includes a wind turbine generator, solar photovoltaic power generation modules, multi-stage potential energy power generation modules, wave energy power generation modules, an energy storage system, a tower, and a nacelle. The tower is a tubular type, fixed to the seabed or floating on the sea surface. A nacelle is located on top of the tower, connecting the wind turbine generator, solar photovoltaic power generation modules, and multi-stage potential energy power generation modules. The wind turbine generator is located at the upper end of the tower. The solar photovoltaic power generation modules are located outside the tower. The multi-stage potential energy power generation modules include a rainwater collection device and a multi-stage potential energy power generation device, which is built into the tower. The upper end of the multi-stage potential energy power generation device is connected to the rainwater collection device to collect the gravitational potential energy of rainwater for power generation. The wave energy power generation module generates electricity using wave undulations. The energy storage system is located inside the tower and stores the electricity generated by the solar photovoltaic power generation modules, wind turbine generator, multi-stage potential energy power generation modules, and wave energy power generation modules.

[0007] Furthermore, the rainwater collection device includes a rainwater collection plate, a water storage tank, and a water delivery pipe. The rainwater collection plate is installed at an angle on the top of the nacelle. The lower end of the rainwater collection plate is connected to the inlet of the water storage tank through a guide pipe. The outlet of the water storage tank is connected to the input end of the water delivery pipe. The output end of the water delivery pipe is connected to a multi-stage potential energy power generation device.

[0008] Furthermore, the rainwater harvesting device also includes a power distribution drive system and an environmental monitoring unit. The environmental monitoring unit is used to monitor wind speed and the water level in the storage tank. The rainwater collection plate is a folding plate, which is folded or unfolded by an actuator. The power distribution drive system controls the actuator according to the data detected by the environmental monitoring unit to change the folding area of ​​the rainwater collection plate.

[0009] Furthermore, the multi-stage potential energy power generation device includes multiple stages of power generation units. Each stage of the power generation unit includes an inlet pipe, an outlet pipe, a second generator, impeller blades, and an impeller cavity. The input end of the second generator extends into the impeller cavity and is fitted with impeller blades. The upper end of the inlet pipe is connected to the outlet of the water supply pipe of the previous stage power generation unit or the outlet of the rainwater collection device. The lower end of the inlet pipe is connected to the impeller cavity, and the bottom of the impeller cavity is connected to the outlet pipe of the next stage power generation unit.

[0010] Furthermore, the wind power generation assembly includes wind turbine blades, a transmission mechanism, and a first generator; the wind turbine blades are disposed outside the nacelle; the transmission mechanism and the first generator are disposed inside the nacelle; the wind turbine blades are connected to the first generator through the transmission mechanism.

[0011] Furthermore, a wave energy power generation component is provided at the bottom of the tower; the wave energy power generation component includes a wave energy power generation system, a buoy, a float, a column-stabilized semi-submersible platform and a connecting arm, and a column-stabilized semi-submersible platform is provided on the tower; the buoy is located on the semi-submersible platform, and the float is hinged to the side of the buoy through a connecting rod, and the float swings up and down through the action of waves; the float is connected to the wave energy power generation system (5) through the connecting arm, and the up and down swing of the float is converted into electrical energy.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. The multi-energy collaborative power generation platform integrating wind energy, solar energy, rainwater potential energy, and wave energy described in this invention achieves multi-dimensional spatiotemporal energy complementarity by integrating four types of energy: wind energy, solar energy, rainwater potential energy, and wave energy, significantly improving the continuity of system power supply. By coating the wind turbine blades and tower surfaces with solar materials and integrating potential energy power generation devices inside the tower, the functional reuse of the supporting structure is achieved, greatly improving space utilization and reducing infrastructure costs. With the help of a shared power distribution control system, it can dynamically respond to environmental changes and achieve adaptive matching of various energy operating conditions, effectively overcoming the limitations of existing technologies.

[0014] 2. The multi-energy collaborative power generation platform integrating wind, solar, rainwater potential energy, and wave energy described in this invention achieves dual wind and solar energy capture capabilities by coating the surface of wind turbine blades with a grid-shaped solar film; the tower internally integrates multiple levels of potential energy generation units, transforming the traditional support structure into a potential energy generation carrier; and the semi-submersible platform's outer side is connected to the float and hydraulic system via hinges, achieving integrated platform anchoring and wave energy capture. This design significantly improves equipment space utilization.

[0015] 3. The multi-energy collaborative power generation platform integrating wind energy, solar energy, rainwater potential energy, and wave energy described in this invention dynamically adjusts based on real-time monitoring data through a power distribution drive control system. The rain collection plate adjusts the rain collection area by extending and retracting through an actuator according to the wind speed signal, and shrinks to reduce load under high wind conditions. The water storage tank opens and closes the drain valve according to the liquid level to drive potential energy power generation. The wave energy float sets the working wave height threshold and automatically locks, realizing adaptive matching of multiple energy conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are some embodiments of the present invention. For those skilled in the art, it is obvious that other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the integrated wind energy, solar energy, rainwater potential energy, and wave energy multi-energy collaborative power generation platform structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection between the wave energy generation system of the present invention and the buoy;

[0019] Figure 3 This is a schematic diagram of the multi-stage potential energy power generation component inside the tower of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the rainwater collection device in the hybrid wind turbine nacelle of the present invention;

[0021] Figure 5 This is a schematic diagram of the multi-stage potential energy generation device inside the hybrid wind turbine tower and the tail drainage of the present invention.

[0022] Figure 6 This is a schematic diagram of the solar power generation module of the present invention.

[0023] In the picture:

[0024] 1-Nacelle; 2-Blade; 3-Tower; 4-Float; 5-Wave power generation system; 6-First hinge; 7-Second hinge; 8-Third hinge; 9-Connecting arm; 10-Float; 11-Rain collection plate; 12-Transmission mechanism; 14-First generator; 15-Power distribution control system; 16-Water tank; 17-Water supply pipe; 19-Guide pipe; 20-Inlet pipe; 21-Outlet pipe; 22-Second generator; 24-Impeller cavity; 25-Impeller blade; 26-Four-way branch pipe; 27-Solar power generation component; 28-One-way drain valve. Detailed Implementation

[0025] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] like Figure 1 As shown, the multi-energy collaborative power generation platform integrating wind energy, solar energy, rainwater potential energy, and wave energy of the present invention is characterized by including: a wind turbine generator set, a solar photovoltaic power generation module, a multi-stage potential energy power generation module, a wave energy power generation module, an energy storage system, a tower 3, and a nacelle 1.

[0029] The tower 3 is a tubular tower, which is fixed to the seabed or floats on the sea surface; the top of the tower 3 is equipped with a nacelle 1, which is used to connect wind power generation components, solar photovoltaic power generation components, and multi-stage potential energy power generation components; the solar photovoltaic power generation components are located outside the tower 3; the wind power generation components are located at the upper end of the tower 3.

[0030] The multi-stage potential energy power generation component includes a rainwater collection device and a multi-stage potential energy power generation device. The multi-stage potential energy power generation device is built into the tower. The upper end of the multi-stage potential energy power generation device is connected to the rainwater collection device to collect the gravitational potential energy of rainwater for power generation.

[0031] The energy storage system is located inside tower 3 and is used to store the electrical energy generated by solar photovoltaic power generation modules, wind power generation modules, multi-stage potential energy power generation modules, and wave energy power generation modules, respectively.

[0032] like Figure 3 As shown, the multi-stage potential energy power generation component includes a rainwater collection device and a multi-stage potential energy power generation device. The multi-stage potential energy power generation device is arranged along the height direction of the tower 3. The inlet end of the multi-stage potential energy power generation device is connected to the outlet end of the rainwater collection device, and is used to convert the gravitational potential energy of rainwater into electrical energy.

[0033] like Figure 4 As shown, the rainwater collection device includes a rainwater collection plate 11, a water storage tank 16, and a water delivery pipe 17. The rainwater collection plate 11 is installed at an angle on the top of the engine compartment 1 to collect rainwater. The lower end of the rainwater collection plate 11 is connected to the inlet of the water storage tank 16 via a guide pipe 19. The outlet of the water storage tank 16 is connected to the input end of the water delivery pipe 17. The output end of the water delivery pipe 17 is connected to a multi-stage potential energy power generation device. During rainfall, rainwater is guided into the water storage tank 16 by the rainwater collection plate 11. When the liquid level reaches a preset height, the water is transported to the multi-stage potential energy power generation device via the water delivery pipe 17 to generate potential energy.

[0034] The rainwater harvesting device also includes a power distribution drive system 15 and an environmental monitoring unit. The environmental monitoring unit monitors wind speed and the water level in the storage tank, and dynamically adjusts the extension length of the rainwater collection plate 11 and the start / stop of drainage in the storage tank 16 based on the monitoring data. The maximum extension range of the rainwater collection plate 11 is set according to the structural parameters of the wind turbine. The rainwater collection plate 11 is a two-piece type, which is folded or unfolded by an actuator. The power distribution drive system 15 controls the actuator according to the data monitored by the environmental monitoring unit to change the folding area of ​​the rainwater collection plate 11. The actuator is an electric push rod and a linkage assembly. The structure consists of an electric push rod fixed to the top of the nacelle, with its telescopic end connected to the folding point of the rain collection plate 11 via a hinge. One end of the connecting rod is hinged to the bottom of the rain collection plate 11, and the other end is connected to a fixed support point on the side of the nacelle, forming a triangular stable support. In non-rainfall conditions or when the wind speed exceeds a set threshold, the power distribution control system 15 controls the actuator, and the push rod of the actuator retracts, pulling the rain collection plate 11 to fold and retract to the top surface of the nacelle 1. In rainfall conditions, the power distribution control system 15 controls the actuator, and the push rod of the actuator extends, pushing the rain collection plate 11 to extend and expand through the connecting rod to increase the rain collection area.

[0035] like Figure 5As shown, the multi-stage potential energy power generation device includes multiple power generation units. Each power generation unit includes an inlet pipe 20, an outlet pipe 21, a second generator 22, impeller blades 25, and an impeller cavity 24. The input end of the second generator 22 extends into the impeller cavity and is fitted with impeller blades 25. The upper end of the inlet pipe 20 is connected to the outlet of the water supply pipe 21 of the previous stage power generation unit or the outlet of the rainwater collection device. The lower end of the inlet pipe 20 is connected to the impeller cavity 24. The bottom of the impeller cavity 24 is connected to the outlet pipe 21 of the next stage power generation unit. The outlet pipe 21 of the lowest stage power generation unit of the multi-stage potential energy power generation device is connected to a one-way drain valve 28 through four branch pipes 26. A one-way drain valve 28 is installed at the outlet of each branch pipe. The one-way drain valve 28 adopts a wedge-shaped sealing structure, which only allows water to flow unidirectionally to the marine environment, effectively preventing seawater backflow. The four branch pipes 26 are symmetrically arranged circumferentially along the central buoy of the semi-submersible platform.

[0036] like Figure 6 As shown, the solar power generation module includes multiple photovoltaic units 27, which are disposed on the outer surface of the wind turbine blade 2 and the outside of the wind turbine tower 3. In this embodiment of the invention, the photovoltaic unit 27 includes a grid-shaped solar thin film, which covers the upper and lower sides of the wind turbine blade 2. A flexible solar thin film is disposed on the outside of the wind turbine tower 3, and the specific placement range can be above the sea level to prevent circuit failure due to seawater erosion. Specifically, the two power generation modules can be connected to share a set of circuits.

[0037] like Figure 1 As shown, the wind power generation assembly includes a wind turbine blade 2, a transmission mechanism 12, and a first generator 14; the wind turbine blade 2 is disposed outside the nacelle 1; the transmission mechanism 12 and the first generator 14 are disposed inside the nacelle 1; the wind turbine blade 2 is connected to the first generator 14 through the transmission mechanism 12; in this embodiment of the invention, the wind turbine blade 2 is driven to rotate by wind power, which drives the transmission mechanism 12 to rotate, thereby realizing the power generation of the first generator 14.

[0038] like Figure 2 As shown, the tower 3 is equipped with a wave energy power generation component at its bottom; the wave energy power generation component includes a wave energy power generation system 5, a buoy 4, a float 10, a column-stabilized semi-submersible platform, and a connecting arm 9. The tower 3 is equipped with a column-stabilized semi-submersible platform; the buoy 4 is located on the column-stabilized semi-submersible platform; the float 10 has connecting rods on both sides, and the connecting rods are hinged to the side of the buoy 4 through a second hinge 7 and a third hinge 8, causing the float 10 to swing up and down through the action of waves; the float 10 is connected to the wave energy power generation system 5 through the connecting arm 9, converting the up and down swing of the float 10 into electrical energy; the wave energy power generation system 5 is hinged to the side of the buoy 4 through a first hinge 6.

[0039] Working principle: Solar photovoltaic power generation units 27 are installed on the outer surface of the wind turbine blades 2 and the outer surface of the tower 3 to collect solar energy and generate electricity under sunlight conditions; a rainwater collection system is installed on the top of the nacelle 1 to convert wind energy into electricity through the blades 2 during wind turbine operation; under precipitation conditions, rainwater potential energy is converted into electricity through a multi-stage potential energy power generation device in the tower 3; under sea surface conditions, waves drive the float 10 to generate heaving motion, which drives the connecting arm 9 to pivot around its fixed hinge point with the float 4; at the same time, relative motion is generated between the float 10 and the swinging connecting arm 9, which drives the generator to rotate and generate electricity. Its circuit system can be connected to the power distribution system 15 in the nacelle 1. Specifically, the start-stop status and maintenance status of the float 10 in the wave energy system can be analyzed by the overall hydrodynamics using three-dimensional software, the working wave height range can be set and the extreme sea conditions can be analyzed to ensure the safe operation of the wave energy device;

[0040] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0041] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-energy collaborative power generation platform integrating wind energy, solar energy, rainwater potential energy, and wave energy, characterized in that: It includes wind turbine generators, solar photovoltaic power generation modules, multi-stage potential energy power generation modules, wave energy power generation modules, energy storage systems, towers (3) and nacelles (1); The tower (3) is a tubular tower, which is fixed on the seabed or floats on the sea surface; the top of the tower (3) is equipped with a cabin (1), and the tower (3) is used to connect wind power generation components, solar photovoltaic power generation components, and multi-stage potential energy power generation components; The solar photovoltaic power generation components are located outside the tower (3); The wind power generation components are located at the upper end of the tower (3); The multi-stage potential energy power generation component includes a rainwater collection device and a multi-stage potential energy power generation device. The multi-stage potential energy power generation device is built into the tower. The upper end of the multi-stage potential energy power generation device is connected to the rainwater collection device to collect the gravitational potential energy of rainwater for power generation. The wave energy generation component is used to generate electricity by utilizing the fluctuations of waves. The energy storage system is located inside the tower (3) and is used to store the electrical energy generated by the solar photovoltaic power generation module, the wind power generation module, the multi-stage potential energy power generation module and the wave energy power generation module respectively.

2. The integrated wind energy-solar energy-rainwater potential energy-wave energy multi-energy collaborative power generation platform according to claim 1, characterized in that: The rainwater collection device includes a rain collection plate (11), a water storage tank (16), and a water delivery pipe (17). The rain collection plate (11) is installed at an angle on the top of the cabin (1). The lower end of the rain collection plate (11) is connected to the inlet of the water storage tank (16) through a guide pipe. The outlet of the water storage tank (16) is connected to the input end of the water delivery pipe (17). The output end of the water delivery pipe (17) is connected to a multi-stage potential energy power generation device.

3. The integrated wind energy-solar energy-rainwater potential energy-wave energy multi-energy collaborative power generation platform according to claim 2, characterized in that: The rainwater collection device also includes a power distribution drive system (15) and an environmental monitoring unit. The environmental monitoring unit is used to monitor wind speed and the liquid level of the water storage tank (16). The rain collection plate (11) is a folding plate, which is folded or unfolded by an actuator. The power distribution drive system (15) controls the actuator according to the data detected by the environmental monitoring unit to change the folding area of ​​the rain collection plate (11).

4. The integrated wind energy-solar energy-rainwater potential energy-wave energy multi-energy collaborative power generation platform according to claim 1, characterized in that: The multi-stage potential energy power generation device includes multiple stages of power generation units. Each stage of power generation unit includes an inlet pipe (20), an outlet pipe (21), a second generator (22), impeller blades (25), and an impeller cavity (24). The input end of the second generator (22) extends into the impeller cavity and is fitted with impeller blades (25). The upper end of the inlet pipe (20) is connected to the outlet of the water supply pipe (21) of the previous stage power generation unit or the outlet of the rainwater collection device. The lower end of the inlet pipe (20) is connected to the impeller cavity (24), and the bottom of the impeller cavity (24) is connected to the outlet pipe (21) of the next stage power generation unit.

5. The integrated wind energy-solar energy-rainwater potential energy-wave energy multi-energy collaborative power generation platform according to claim 1, characterized in that: The wind power generation assembly includes a wind turbine blade (2), a transmission mechanism (12), and a first generator (14); the wind turbine blade (2) is located outside the nacelle (1); the transmission mechanism (12) and the first generator (14) are located inside the nacelle (1); the wind turbine blade (2) is connected to the first generator (14) through the transmission mechanism (12).

6. The integrated wind energy-solar energy-rainwater potential energy-wave energy multi-energy collaborative power generation platform according to claim 1, characterized in that: The tower (3) is equipped with a wave energy power generation component at its bottom. The wave energy power generation component includes a wave energy power generation system (5), a buoy (4), a float (10), a column-stabilized semi-submersible platform, and a connecting arm (9). The tower (3) is equipped with a column-stabilized semi-submersible platform. The buoy (4) is located on the column-stabilized semi-submersible platform. The float (10) is hinged to the side of the buoy (4) by a connecting rod. The float (10) swings up and down due to the wave action. The float (10) is connected to the wave energy power generation system (5) through the connecting arm (9) to convert the up and down swing of the float (10) into electrical energy.

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