Overtopping wave-resistant power generation system for offshore floating photovoltaic system

Abstract

According to the overtopping type wave-resistant power generation system for the offshore floating type photovoltaic system, in the system, a head wave ramp comprises a slope surface which is inclined downwards in the direction away from the photovoltaic power generation system so as to be opposite to the photovoltaic power generation system to receive waves; a plurality of long-strip-shaped guide plates extending in the direction away from the photovoltaic power generation system are arranged on the slope surface, the long-strip-shaped guide plates are arranged according to a preset angle so as to form a contraction ramp with a narrow upper part and a wide lower part on the slope surface, and the rotor comprises a rotor shell which receives waves from the head wave ramp to rotate and a permanent magnet connected with the device shell; the permanent magnet rotates along with the rotor shell to rotate relative to the stator coil to convert wave energy into electric energy and weaken waves at the same time. The system improves the stability and safety of the structure.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore power generation, and in particular to a wave-riding wave-proof power generation system for an offshore floating photovoltaic system. Background Art

[0002] With the continuous development of social activities and industrial level, the reduction of non-renewable resources such as coal, oil, and natural gas has led to increasingly prominent contradictions in energy supply. The development of new green renewable resources has become an effective means to solve energy problems. Floating offshore photovoltaics extend the development of renewable energy to the marine environment, make full use of marine solar energy resources, improve energy conversion efficiency, protect the environment, increase offshore energy supply capacity, and promote sustainable development. During the operation of floating offshore photovoltaics, they will be subject to complex and extreme weather loads in the ocean for a long time. The impact of ocean waves has seriously affected the operation of offshore photovoltaic power generation systems.

[0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0004] The purpose of the present invention is to provide a wave-overcoming wave-breaking power generation system for an offshore floating photovoltaic system. When in a marine environment, the wave-overcoming wave-breaking power generation device is used to weaken the impact of waves on the floating photovoltaic power generation system, and at the same time, wave energy is used to generate electricity and store it, so as to achieve the purpose of reducing the movement of the floating offshore photovoltaic system and the use of wave energy, improve the stability and safety of the structure, and promote the renewable use of energy.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A wave-over wave-proof power generation system for an offshore floating photovoltaic system of the present invention comprises:

[0007] A photovoltaic power generation system, comprising a photovoltaic power generation panel;

[0008] A floating system, comprising a buoy floating on the water surface, wherein the buoy is provided with a connection ring connected to the photovoltaic power generation panel;

[0009] A plurality of overtopping wave-proof power generation devices are arranged around the periphery of the floating system, and the overtopping wave-proof power generation devices include:

[0010] The wave-facing ramp comprises a slope surface inclined downward in a direction away from the photovoltaic power generation system to face away from the photovoltaic power generation system to meet the waves, and a plurality of long strip guide plates extending in a direction away from the photovoltaic power generation system are arranged on the slope surface, and the long strip guide plates are arranged at a predetermined angle to form a contraction ramp with a narrow top and a wide bottom on the slope surface.

[0011] The wave-back unit includes:

[0012] The energy storage unit comprises a shell which is enclosed with a side of the wave-facing ramp close to the photovoltaic power generation system to form a cavity and an energy storage unit arranged in the shell.

[0013] A generator set is arranged in the cavity and connected to the energy storage unit via a cable, wherein the generator set comprises a plurality of turbine generators, each of which comprises:

[0014] The stator includes a stator coil and a wiring channel.

[0015] The rotor comprises a rotor housing for rotating in response to waves from the wave ramp and a permanent magnet connected to the housing of the device. The permanent magnet rotates with the rotor housing to rotate relative to the stator coil to convert wave energy into electrical energy while weakening the wave.

[0016] The above-mentioned overriding wave-breaking power generation system for an offshore floating photovoltaic system further includes a mooring system, which includes a first mooring line connected to the floating system via the connecting ring.

[0017] In the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the buoy surrounds the photovoltaic power generation panel.

[0018] In the overriding wave-breaking power generation system for an offshore floating photovoltaic system, the wave-behind unit further includes a second mooring line for mooring the overriding wave-breaking power generation device.

[0019] In the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, arc-shaped guide plates are respectively provided on both sides of the bottom of the slope to form two wings that gradually widen in the direction away from the photovoltaic power generation system.

[0020] In the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the multiple turbine generators are arranged in series in the height direction along the center of the cavity.

[0021] In the wave-riding wave-proof power generation system for an offshore floating photovoltaic system, the casing of the power storage unit is connected to the wave-facing ramp to form a circular cavity.

[0022] In the overriding wave-breaking power generation system for an offshore floating photovoltaic system, the flexible photovoltaic panel is disc-shaped, and a plurality of overriding wave-breaking power generation devices are evenly arranged around the flexible photovoltaic panel to form a circle of overriding wave-breaking power generation devices. The flexible photovoltaic panel, buoy and the circle of overriding wave-breaking power generation devices form multiple layers of concentric circles surrounding the flexible photovoltaic panel.

[0023] In the above-mentioned overriding wave-breaking power generation system for an offshore floating photovoltaic system, the rotor housing includes a plurality of concentrically arranged turbine blades.

[0024] In the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the flexible floating photovoltaic power generation system is a centrally symmetrical structure.

[0025] In the above technical scheme, the present invention provides a wave-overcoming wave-breaking power generation system for an offshore floating photovoltaic system, which has the following beneficial effects: the wave-overcoming wave-breaking power generation system for an offshore floating photovoltaic system realizes offshore floating flexible photovoltaic power generation. When waves come, the waves are concentrated on the contraction ramp through the guide plate. The contraction ramp can quickly send the waves into the circular cavity while preventing the waves from sliding around. After the waves enter the circular cavity, the wave energy is converted into the gravitational potential energy of the water, impacting the rotor casing of the turbine generator to rotate it, and generating electricity by cutting the magnetic lines of induction, and storing the electrical energy in the energy storage unit through the cable, thereby realizing the functions of wave protection and power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure of a wave-riding wave-breaking power generation system for an offshore floating photovoltaic system provided in an embodiment of the present invention.

[0028] Figure 2 A schematic diagram of a photovoltaic power generation system of a wave-riding wave-breaking power generation system for an offshore floating photovoltaic system provided in an embodiment of the present invention.

[0029] Figure 3 A schematic structural diagram of an overriding wave-breaking power generation device for an overriding wave-breaking power generation system for an offshore floating photovoltaic system provided in an embodiment of the present invention.

[0030] Figure 4 A schematic structural diagram of a wave-behind unit of a wave-riding wave-breaking power generation system for an offshore floating photovoltaic system provided in an embodiment of the present invention.

[0031] Figure 5 A schematic structural diagram of a wave-facing ramp of a wave-riding wave-breaking power generation system for an offshore floating photovoltaic system provided in an embodiment of the present invention.

[0032] Figure 6A structural cross-sectional view of a generator set of a wave-riding wave-breaking power generation system for an offshore floating photovoltaic system provided in an embodiment of the present invention.

[0033] In the figure: 1 is a floating photovoltaic power generation system, 1-1 is a photovoltaic power generation system, 1-2 is a floating system, 1-3 is a connecting ring, 1-4 is a mooring system, 2 is a wave-crossing wave-breaking power generation device, 2-1 is a second mooring line, 2-2 is a wave-behind unit, 2-3 is a wave-facing ramp, 2-2-1 is an energy storage unit, 2-2-2 is a generator unit, 2-2-3 is a cable, 2-3-1 is an arc guide plate, 2-3-2 is a long strip guide plate, 2-3-3 is a contraction ramp, 2-2-2-1 is a rotor casing, 2-2-2-2 is a permanent magnet, 2-2-2-3 is a stator coil, and 2-2-2-4 is a wiring channel. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] See also Figure 1-6 As shown, in one embodiment, a wave-over wave-breaking power generation system for an offshore floating photovoltaic system of the present invention comprises:

[0043] Photovoltaic power generation system 1-1, which includes a photovoltaic power generation panel;

[0044] A floating system 1-2, comprising a buoy floating on the water surface, wherein the buoy is provided with a connection ring 1-3 for connecting the photovoltaic power generation panel;

[0045] A plurality of overtopping wave-proof power generation devices 2 are arranged around the periphery of the floating system 1-2, and the overtopping wave-proof power generation devices 2 include:

[0046] The wave-facing ramp 2-3 includes a slope surface inclined downward in a direction away from the photovoltaic power generation system 1-1 to face away from the photovoltaic power generation system 1-1 to meet the waves, and a plurality of long strip guide plates 2-3-2 extending in a direction away from the photovoltaic power generation system 1-1 are arranged on the slope surface, and the long strip guide plates 2-3-2 are arranged at a predetermined angle to form a contraction ramp 2-3-3 with a narrow upper part and a wide lower part on the slope surface.

[0047] Langhou unit 2-2, which includes,

[0048] The energy storage unit 2-2-1 comprises a shell which forms a cavity with the side of the wave-facing ramp 2-3 close to the photovoltaic power generation system 1-1 and an energy storage unit arranged in the shell.

[0049] A generator set 2-2-2 is arranged in the cavity and connected to the energy storage unit via a cable 2-2-3. The generator set includes a plurality of turbine generators, each of which includes:

[0050] The stator includes a stator coil 2-2-2-3 and a wiring channel 2-2-2-4.

[0051] The rotor comprises a rotor housing 2-2-2-1 for rotating to meet the waves from the wave ramp 2-3 and a permanent magnet 2-2-2-2 connected to the housing of the device. The permanent magnet 2-2-2-2 rotates with the rotor housing 2-2-2-1 to rotate relative to the stator coil 2-2-2-3 to convert wave energy into electrical energy while weakening the wave.

[0052] In a preferred embodiment of the above-mentioned overriding wave-breaking power generation system for an offshore floating photovoltaic system, it also includes a mooring system 1-4, which includes a first mooring line connected to the floating system 1-2 via the connecting ring 1-3.

[0053] In a preferred embodiment of the above-mentioned wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the buoy surrounds the photovoltaic power generation panel.

[0054] In a preferred embodiment of the overriding wave-breaking power generation system for an offshore floating photovoltaic system, the wave-behind unit 2 - 2 further includes a second mooring line 2 - 1 for mooring the overriding wave-breaking power generation device 2 .

[0055] In a preferred embodiment of the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, arc-shaped guide plates 2-3-1 are respectively provided on both sides of the bottom of the slope to form two wings that gradually widen in the direction away from the photovoltaic power generation system 1-1.

[0056] In a preferred embodiment of the above-mentioned wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the plurality of turbine generators are arranged in series in the height direction along the center of the cavity.

[0057] In a preferred embodiment of the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the casing of the power storage unit is connected to the wave-facing ramp 2-3 to form a circular cavity.

[0058] In a preferred embodiment of the overriding wave-breaking power generation system for an offshore floating photovoltaic system, the flexible photovoltaic panel is disc-shaped, and a plurality of overriding wave-breaking power generation devices 2 are evenly arranged around the flexible photovoltaic panel to form two circles of overriding wave-breaking power generation devices, and the flexible photovoltaic panel, buoy and two circles of overriding wave-breaking power generation devices form multiple layers of concentric circles surrounding the flexible photovoltaic panel.

[0059] In a preferred embodiment of the above-mentioned overriding wave-breaking power generation system for an offshore floating photovoltaic system, the rotor housing 2-2-2-1 includes a plurality of concentrically arranged turbine blades.

[0060] In a preferred embodiment of the wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, the flexible floating photovoltaic power generation system 1 - 1 is a centrally symmetrical structure.

[0061] In one embodiment, a wave-over wave-break power generation system for an offshore floating photovoltaic system comprises:

[0062] The floating photovoltaic power generation system 1 includes: a floating system 1-2, which is a buoy floating on the water surface, and the buoy is provided with a connecting ring 1-3; a mooring system 1-4, which is a first mooring line arranged on the floating system 1-2, and connected to the floating system 1-2 through the connecting ring 1-3; a photovoltaic power generation system 1-1, which is a flexible photovoltaic panel connected to the floating system 1-2 through the connecting ring 1-3, and the flexible photovoltaic panel floats on the water surface; a wave-crossing wave-proof power generation device 2, which is arranged at the periphery of the floating photovoltaic power generation system 1, and includes a second mooring line 2-1, a wave-facing ramp 2-3 and a wave-behind unit 2-2. The wave-facing ramp 2-3 includes a guide plate and a contraction ramp 2-3-3; the wave-behind unit 2-2 includes a generator set 2-2-2 and a power storage unit 2-2-1, the generator set 2-2-2 includes a plurality of turbine generators, and the power storage unit 2-2-1 is connected to the generator set 2-2-2 through a cable. When waves come, the wave-riding wave-breaking power generation system converts wave energy into electrical energy and stores it in the power storage unit, while weakening the waves and reducing the impact of the waves on the normal operation of the offshore photovoltaic system.

[0063] The floating system 1-2 is distributed in a ring shape outside the photovoltaic power generation system 1-1. The guide plates are arranged outside and on the ramp of the wave-facing ramp 2-3, wherein the guide plates outside the ramp are arc-shaped guide plates 2-3-1, and the guide plates on the ramp are long strip guide plates 2-3-2. The long strip guide plates 2-3-2 on the wave-facing ramp 2-3 are arranged at a certain angle to form a contraction ramp 2-3-3 that is narrow at the top and wide at the bottom. The generator set 2-2-2 includes a plurality of turbine generators. The housing of the power storage unit 2-2-1 is connected to the wave-facing ramp 2-3 to form a circular cavity, and the generator set 2-2-2 is located in the cavity. The turbine generator consists of a stator and a rotor, wherein the stator is a stator coil 2-2-2-3, and the rotor includes a rotor housing 2-2-2-1 and a permanent magnet 2-2-2-2, and the permanent magnet 2-2-2-2 is fixed in the rotor housing 2-2-2-1.

[0064] The wave-riding wave-breaking power generation system for an offshore floating photovoltaic system, when waves come, concentrates the waves on the contraction ramp 2-3-3 through the guide plate, and enters the cavity along the contraction ramp 2-3-3, thereby causing the rotor housing 2-2-2-1 and the permanent magnet 2-2-2-2 to rotate around the stator coil 2-2-2-3, converting the wave energy into electrical energy and weakening the waves.

[0065] On the basis of realizing offshore floating flexible photovoltaic power generation, when waves come, the waves are concentrated on the contraction ramp 2-3-3 through the guide plate. The contraction ramp 2-3-3 can quickly send the waves into the circular cavity and prevent the waves from sliding around. After the waves enter the circular cavity, the wave energy is converted into the gravitational potential energy of the water, which impacts the rotor casing 2-2-2-1 of the turbine generator to rotate, and generates electricity by cutting the magnetic flux lines. The electrical energy is stored in the energy storage unit 2-2-1 through the cable, and the functions of wave protection and power generation are realized at the same time.

[0066] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0067] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wave-over wave-proof power generation system for an offshore floating photovoltaic system, characterized in that: These include, A photovoltaic power generation system, comprising a photovoltaic power generation panel; A floating system, comprising a buoy floating on the water surface, wherein the buoy is provided with a connection ring connected to the photovoltaic power generation panel; A plurality of overtopping wave-proof power generation devices are arranged around the periphery of the floating system, and the overtopping wave-proof power generation devices include: The wave-facing ramp comprises a slope surface inclined downward in a direction away from the photovoltaic power generation system to face away from the photovoltaic power generation system to meet the waves, and a plurality of long strip guide plates extending in a direction away from the photovoltaic power generation system are arranged on the slope surface, and the long strip guide plates are arranged at a predetermined angle to form a contraction ramp with a narrow top and a wide bottom on the slope surface. The wave-back unit includes: The energy storage unit comprises a shell which is enclosed with a side of the wave-facing ramp close to the photovoltaic power generation system to form a cavity and an energy storage unit arranged in the shell. A generator set is arranged in the cavity and connected to the energy storage unit via a cable, wherein the generator set comprises a plurality of turbine generators, each of which comprises: The stator includes a stator coil and a wiring channel. The rotor comprises a rotor housing for rotating in response to waves from the wave ramp and a permanent magnet connected to the housing of the device. The permanent magnet rotates with the rotor housing to rotate relative to the stator coil to convert wave energy into electrical energy while weakening the wave.

2. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: Also included is a mooring system including a first mooring line connected to the floating system via the connection ring.

3. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The buoy surrounds the photovoltaic panel.

4. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The wave-behind unit also includes a second mooring line for mooring the over-the-wave type wave-breaking power generation device.

5. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: Arc-shaped guide plates are respectively arranged on both sides of the bottom of the slope to form two wings that gradually widen in the direction away from the photovoltaic power generation system.

6. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The plurality of turbine generators are arranged in series in a height direction along the center of the cavity.

7. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The shell of the power storage unit is connected to the wave-facing ramp to form a circular cavity.

8. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The flexible photovoltaic panel is disc-shaped, and a plurality of wave-overcoming wave-breaking power generation devices are evenly arranged around the flexible photovoltaic panel to form a wave-overcoming wave-breaking power generation device circle. The flexible photovoltaic panel, buoy and wave-overcoming wave-breaking power generation device circle form multiple layers of concentric circles surrounding the flexible photovoltaic panel.

9. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The rotor housing includes a plurality of turbine blades arranged concentrically.

10. The overriding wave-breaking power generation system for an offshore floating photovoltaic system according to claim 1, characterized in that: The flexible floating photovoltaic power generation system has a centrally symmetrical structure.

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