A floating photovoltaic wave energy power generation platform with wave damping device

Abstract

This invention discloses a floating photovoltaic wave energy power generation platform with wave-damping devices, comprising a main platform, wave-damping devices, wave energy devices, and an adaptive mooring system. A photovoltaic power generation device for solar power generation is installed on the top of the main platform. Wave-damping devices are arranged at intervals around the outer perimeter of the main platform. The wave-damping devices are flexibly connected to the main platform via multiple connecting cables. Multiple wave energy devices are installed within the wave-damping devices. The main platform and wave-damping devices are respectively connected to the adaptive mooring system, which enhances the wind and wave resistance of the main platform and wave-damping devices. This floating photovoltaic wave energy power generation platform with wave-damping devices integrates photovoltaic and wave energy generation and improves safety through wave-damping devices. This invention improves power generation efficiency while better resisting external environmental loads, and has significant practical implications.

Description

Technical Field

[0001] This invention relates to renewable energy technology and offshore power generation technology, and in particular to a floating photovoltaic wave energy power generation platform with wave-damping devices. Background Technology

[0002] The development and utilization of renewable energy technologies has become a key research focus for many countries. Among the many renewable energy technologies, offshore photovoltaic power generation and wave power generation technologies have developed rapidly and have broad application prospects.

[0003] Compared to onshore photovoltaic systems, floating photovoltaic systems offer advantages such as saving land resources, utilizing more space, receiving more sunlight, and facilitating large-scale modularization. Floating platforms supporting photovoltaic panels come in various forms, with the combination of pontoons and supports providing the strongest resistance to wind and waves. Wave energy devices, on the other hand, feature high energy density, stable energy supply, and simple, durable structure. They convert the energy captured from waves into mechanical energy through a power output system, and then further convert it into electrical energy for output.

[0004] To improve energy and space utilization, multi-energy complementarity of marine clean energy is an important development direction. When developing marine renewable energy power generation equipment, facing the harsh and ever-changing marine environment, especially the impact of waves, improving the structure's resistance to wind and waves and ensuring the safety of the equipment are the primary tasks, as well as the guarantee for saving costs and improving efficiency.

[0005] Currently, in order to avoid damage to solar power generation devices (specifically photovoltaic panels) caused by waves (i.e., waves formed by rushing water), the floating platforms that support the photovoltaic panels have high requirements for motion response, and their structures are usually weak in resistance to wind and waves, which is not conducive to safe and stable power generation.

[0006] Therefore, there is an urgent need to develop a technology that can solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to address the technical deficiencies of existing technologies by providing a floating photovoltaic wave energy generation platform with a wave-damping device.

[0008] To this end, the present invention provides a floating photovoltaic wave energy generation platform with a wave damping device, which includes a main platform, a wave damping device and a wave energy device, as well as an adaptive mooring system.

[0009] At the top of the main platform, there are photovoltaic panels for generating solar power.

[0010] Wave-damping devices are installed around the periphery of the main platform at intervals.

[0011] The wave-damping device is flexibly connected to the main platform via multiple connecting cables;

[0012] Wave damping devices are used to reduce the wave impact on the main platform, reduce wave load, and improve the stability of the main platform.

[0013] The wave-damping device contains multiple wave energy devices;

[0014] Wave damping devices are used to reciprocate under the action of waves and drive the wave energy device system to generate relative motion;

[0015] Wave energy devices are used to convert mechanical energy into electrical energy in real time and output it to the outside when relative motion occurs;

[0016] The main platform and wave-damping devices are connected to the adaptive mooring system, respectively.

[0017] Adaptive mooring systems are used to enhance the wind and wave resistance of the main platform and wave-damping devices, and to maintain the stability of the main platform and wave-damping devices.

[0018] The main platform includes: a hollow main platform storage compartment platform;

[0019] Inside the main platform storage compartment, there is a main platform winch, a main platform winch controller, and connecting cables;

[0020] The main platform winch has multiple turns of connecting cable wound around it;

[0021] The main platform winch controller is connected to the outward extension end of the connecting cable and is used to control the movement constraint on the connecting cable or release the movement constraint on the connecting cable.

[0022] As can be seen from the technical solutions provided by the present invention above, compared with the prior art, the present invention provides a floating photovoltaic wave energy power generation platform with wave damping device. Its design is scientific. It is a platform that integrates photovoltaic power generation and wave energy power generation, and can also improve safety through wave damping device. The present invention can better resist external environmental loads while improving power generation efficiency, and has great practical significance.

[0023] By applying this invention, the effectiveness of traditional breakwaters can be optimized. On the one hand, by utilizing the principles of radiation wave generation and wave superposition, and employing wave-damping devices, the impact of waves on the main platform can be effectively reduced. Furthermore, wave energy devices are added to further increase damping and fully utilize energy. On the other hand, given that catenary mooring cannot provide sufficient restoring stiffness and cannot effectively reduce the heave and swaying motion of the platform, while tensioned mooring can effectively suppress motion, it cannot overcome tidal range issues and is more prone to mooring fatigue damage. Therefore, this invention combines a novel wave-damping device with a floating photovoltaic power generation platform, which can significantly reduce wave loads and lower the risk of damage to the power generation equipment.

[0024] In this invention, the tensioned mooring system is only activated under dangerous sea conditions and retrieved under normal sea conditions, thus making it easier to adapt to the influence of different marine environments. Attached Figure Description

[0025] Figure 1 A three-dimensional structural diagram of a floating photovoltaic wave energy generation platform with a wave-damping device provided by the present invention;

[0026] Figure 2 A schematic diagram of the overall structure of the main platform in a floating photovoltaic wave energy generation platform with a wave-damping device provided by the present invention;

[0027] Figure 3 A top view of a floating photovoltaic wave energy generation platform with a wave-damping device provided by the present invention;

[0028] Figure 4 A schematic diagram of the connection and assembly structure of the wave-damping device, the adaptive mooring system and the main platform in a floating photovoltaic wave energy generation platform with a wave-damping device provided by the present invention.

[0029] Figure 5 This is a schematic diagram illustrating the application scenarios of the adaptive mooring system in a floating photovoltaic wave energy generation platform with a wave-damping device provided by the present invention, during activation and deactivation. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0033] 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 technical features indicated. Thus, a feature defined as "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.

[0034] See Figures 1 to 5 The present invention provides a floating photovoltaic wave energy power generation platform with a wave-damping device, comprising: a main platform 1, a wave-damping device 2 and a wave energy device 3, and an adaptive mooring system 5;

[0035] At the top of the main platform 1, there is a photovoltaic power generation device 6 for generating solar power;

[0036] Wave-damping devices 2 are installed around the outer periphery of the main platform 1 at intervals.

[0037] The wave-damping device 2 and the main platform 1 are flexibly connected by multiple connecting cables 207.

[0038] Wave damping device 2 is used to reduce the wave impact on the main platform 1, reduce wave load, and improve the stability of the main platform 1.

[0039] Multiple wave energy devices 3 are installed inside the wave damping device 2;

[0040] Wave damping device 2 is used to reciprocate under the action of waves and drive the wave energy device system 3 to generate relative motion;

[0041] Wave energy device 3 is used to convert mechanical energy into electrical energy in real time and output it to the outside when relative motion occurs;

[0042] The main platform 1 and the wave-damping device 2 are respectively connected to the adaptive mooring system 5;

[0043] The adaptive mooring system 5 is used to enhance the wind and wave resistance of the main platform 1 and the wave-damping device 2, and to maintain the stability of the main platform 1 and the wave-damping device 2 when the sea state where the platform is located is dangerous.

[0044] In this invention, for specific implementation, see [link to relevant documentation]. Figure 2 As shown, the main platform 1 includes: a hollow main platform storage compartment platform 105;

[0045] Inside the main platform storage compartment platform 105, there is a main platform winch 106, a main platform winch controller 107 and a connecting cable 207;

[0046] On the main platform winch 106, there are multiple turns of connecting cable 207 wound around it;

[0047] The main platform winch controller 107 is connected to the outwardly extending end of the connecting cable 207 (i.e. the end away from the main platform winch 106) and is used to control the movement constraint of the connecting cable 207 or to release the movement constraint of the connecting cable 207.

[0048] It should be noted that, for the present invention, the internal cavity of the main platform storage compartment platform 105 is used to accommodate the equipment on the main platform 1 for cooperating with the adaptive mooring system 5, including the main platform winch 106, the main platform winch controller 107, and the spare connecting cable 207.

[0049] In terms of specific implementation, the main platform 1 also includes: pontoon 101, support column 102, floating pipe 103 and damping plate 104;

[0050] The top perimeter of the main platform storage compartment platform 105 is provided with multiple support columns 102 and multiple floats 101 arranged in a circular pattern.

[0051] Multiple pontoons 101 are located inside multiple support columns 102;

[0052] A horizontally distributed main platform top support frame 1001 is provided on the top of multiple support columns 102;

[0053] The top of the main platform top support frame 1001 is used to place the photovoltaic panel power generation equipment;

[0054] The main platform top support frame 1001 includes multiple cross-distributed floating pipes 103;

[0055] Multiple damping plates 104 are arranged around the bottom perimeter of the main platform storage compartment platform 105.

[0056] In specific implementation, a horizontally distributed main platform bottom support frame 1002 is fixedly installed in the central through hole of the main platform storage compartment platform 105;

[0057] The main platform bottom support frame 1002 includes multiple cross-distributed floating pipes 103;

[0058] In practice, each pontoon 101 is connected to the top support frame of the main platform through a vertically distributed floating pipe 103;

[0059] The top of the main platform bottom support frame 1002 is fixedly connected to the bottom of the main platform top support frame 1001 through multiple vertically distributed floating pipes 103.

[0060] It should be noted that the floating tube 103 is a slender tubular structure that provides structural strength, other than the support column 102. Multiple floating tubes 103 are intersected in the interior of the main platform 1 and are welded to the support column 102, the float 101 and the main platform storage compartment 105 respectively.

[0061] In specific implementation, the main platform storage compartment platform 105 includes multiple sub-compartment platforms 1050 distributed around it;

[0062] Each compartment platform 1050 has an outwardly extending damping plate 104 on its bottom outer side;

[0063] The damping plate 104 is a rectangular cross-section plate;

[0064] It should be noted that the damping plate 104 can provide additional damping to suppress the movement of the main platform 1.

[0065] In practice, the diameter of the support column 102 is larger than the diameter of the floating tube 103.

[0066] It should be noted that the six support columns 102 are distributed circumferentially at equal intervals at the six corners of the main platform 1, serving to strengthen and support the structure. Therefore, the diameter of the support columns 102 is larger than the diameter of the floating pipe 103.

[0067] It should be noted that the float 101 is mainly used to provide buoyancy and is rigidly connected to the upper surface of the main platform storage compartment platform 105 with equal spacing in the circumference. The upper surface of the float 101 is rigidly connected to the float tube 103.

[0068] In terms of specific implementation, the top and bottom of the main platform 1 are both hexagonal structures.

[0069] In this invention, it should be noted that, as Figure 3 , 4As shown, the wave-damping device 2 is arranged around the outside of the main platform 1 at a certain distance from the main platform 1. On the one hand, it is used to shield the main platform 1 from wind and waves. On the other hand, it is used to generate radiated waves. Under the interaction of waves, it can effectively reduce the impact of wave load.

[0070] In this invention, specifically, the wave-damping device 2 includes multiple segmented parts 200 of equal length, arranged in a ring and connected in sequence (e.g., eight segmented parts, which are arc-shaped).

[0071] Each segment 200 contains a wave energy device 3;

[0072] A wave height monitoring instrument 201 is installed on the outer wall of each segment 200;

[0073] An adaptive mooring storage compartment 204 is provided on the upper inner side of each segment 200;

[0074] An adaptive mooring system 5 is installed inside the wave-damping device storage compartment 204;

[0075] The adaptive mooring system 5 includes a wave-damping winch 502 and a wave-damping winch controller 506, as well as an adaptive mooring cable 501;

[0076] Multiple turns of adaptable mooring cable 501 are wound on the winch 502 of the wave-damping device;

[0077] The wave-damping device winch controller 506 is connected to the outwardly extending end of the adaptive mooring cable 501 (i.e. the end away from the wave-damping device winch 502) and is used to control the movement constraint on the adaptive mooring cable 501 or to release the movement constraint on the adaptive mooring cable 501.

[0078] Below the wave-damping device storage compartment 204, there are inclined, hollow anchor channels 205.

[0079] The outward extension of the adaptive mooring cable 501 passes through the anchorage 205 and connects to a sinking anchor 503;

[0080] The anchor 503 is also connected to the outward extension end of the connecting cable 207 in the main platform 1.

[0081] It should be noted that, in order to facilitate the installation, disassembly and arrangement of equipment, the wave-damping device 2 can be divided into eight segments 200 at equal intervals. Each segment 200 is equipped with a wave energy device 3, a wave height monitor 201, a fixed ballast tank 202, a variable ballast tank 203, an adaptive mooring storage tank 204, an anchorage 205, and a sinking anchor 503.

[0082] Furthermore, the anchor 503 is located inside the wave-damping device 2;

[0083] The upper opening of the anchorage 205 is connected to the bottom of the wave-damping device storage compartment 204;

[0084] The lower opening of the anchorage 205 is located on the inner wall of the wave-damping device 2;

[0085] Furthermore, an anchor stop 504 is provided on the lower opening of the anchorage channel 205.

[0086] It should be noted that the upper opening of the anchorage 205 is connected to the wave-damping device storage compartment 204, and the lower opening of the anchorage 205 is opened on the inner wall of the wave-damping device 2. The anchorage 205 is used to provide a channel for the movement of the adaptive mooring cable 501.

[0087] The anchor stopper 504 is located at the lower opening of the anchor channel 205 and is used to further fix the position of the sinking anchor 503 to prevent the sinking anchor 503 from falling off accidentally.

[0088] The anchor 503 is located below the anchor stop 504. It is connected to the segment 200 in the wave-damping device 2 via the adaptive mooring cable 501, and to the main platform 1 via the connecting cable 207. At the connection point, three degrees of freedom of translation are constrained and three degrees of freedom of rotation are released.

[0089] It should be noted that the wave-damping device winch controller 506 and the main platform winch controller 107 are respectively paired with the corresponding wave-damping device winch 502 and the main platform winch 106. When the wave-damping device winch controller 506 and the main platform winch controller 107 are turned on, the movement constraints of the adaptive mooring cable 501 and the connecting cable 207 are released respectively. The effective parts of the adaptive mooring cable 501 and the connecting cable 207 can be extended or shortened by controlling the wave-damping device winch 502 and the main platform winch 106.

[0090] In practice, a fixed ballast tank 202 is provided on the inner bottom of each segment 200;

[0091] A variable ballast tank 203 is provided directly above the fixed ballast tank 202;

[0092] It should be noted that the fixed ballast tank 202 is located at the bottom inner side of the wave-damping device 2, and serves to increase the counterweight so that the wave-damping device 2 can be balanced by gravity and buoyancy in still water.

[0093] In practice, a one-way inlet gate 208 and a one-way outlet gate 209 are provided on the outer wall of the variable ballast tank 203.

[0094] The variable ballast tank 203 is used to store water for ballast.

[0095] One-way inlet gate 208 and one-way outlet gate 209 are located on the outer wall of wave-damping device 2.

[0096] One-way inlet gate 208 is located above one-way outlet gate 209;

[0097] It should be noted that the variable ballast tank 203 is arranged above the fixed ballast tank 202 and consists of multiple compartments. Initially, it is empty. The weight of the ballast water can be adjusted according to different working conditions and whether the adaptive mooring system 5 is activated. The hatch of the variable ballast tank 203 is opened on the outer wall of the wave-damping device 2 and is equipped with a one-way inlet gate 208 and a one-way outlet gate 209. The one-way inlet gate 208 is located above the one-way outlet gate 209, which makes the pressure of the inlet gate greater than that of the outlet gate, making it easier to carry in and out water.

[0098] In practice, the wave height monitor 201 is installed on the outer wall of the wave-damping device 2, with the installation height level with the average water surface.

[0099] In practice, the wave energy device 3 is installed inside the wave-damping device 2;

[0100] The wave energy device 3 is installed at the same height as the wave height monitor 201, and is located below the wave damping device storage tank 204 and above the variable ballast tank 203.

[0101] It should be noted that during use, the wave-damping device 2 reciprocates under the action of waves (including up-and-down, forward-and-backward, and left-and-right movements), thereby driving the wave energy device 3 to undergo relative motion. Mechanical energy is ultimately converted into electrical energy through the multi-stage transmission system built into the wave energy device 3. In this invention, by capturing, converting, and utilizing wave energy through the wave energy device 3, the damping of the floating body's motion is increased, wave energy is dissipated, and the wave-damping and protection effects of the wave-damping device 3 are further optimized. Simultaneously, it also provides electrical power for the operation of the wave-damping device 3.

[0102] In a specific implementation of this invention, the floating photovoltaic wave energy power generation platform of this invention further includes: a fixed mooring system 4;

[0103] The fixed mooring system 4 includes a first fixed mooring cable 401 and a second fixed mooring cable 402;

[0104] One end of the first fixed mooring cable 401 and one end of the second fixed mooring cable 402 are respectively connected to the outer walls of the main platform 1 and the outer walls of the wave-damping device 2.

[0105] The other end of the first fixed mooring cable 401 and the other end of the second fixed mooring cable 402 are respectively fixedly connected to the seabed.

[0106] In practice, the outer walls of the main platform 1 are connected to multiple sets of first fixed mooring cables 401 that are distributed at equal intervals.

[0107] Each group of first fixed mooring cables 401 includes two mooring cables;

[0108] The outer walls of the wave-damping device 2 are connected to multiple sets of second fixed mooring cables 402 that are evenly spaced.

[0109] Each set of second fixed mooring cables 402 includes two mooring cables;

[0110] In practice, the horizontal arrangement angle between each group of first fixed mooring cables 401 and the adjacent group of second fixed mooring cables 402 differs by 180 degrees, or the horizontal arrangement angle difference is an acute angle, in order to avoid collisions or entanglement between the mooring cables.

[0111] It should be noted that the side wall of the main platform storage compartment platform 105 is provided with a through hole for the connecting cable 207 to pass through, and an installation hole for docking the first fixed mooring cable 401 in the fixed mooring system 4.

[0112] It should be noted that, as Figure 3 As shown, the main platform 1 and the wave-damping device 2 are moored and positioned by independent fixed mooring systems 4. The first fixed mooring cable 401 on the main platform 1 and the second fixed mooring cable 402 on the wave-damping device 2 are both arranged in a 3×2 configuration, that is, three groups of two mooring cables each. The horizontal angle between the two mooring cables in a group is 5 degrees, and the horizontal angle between the center lines of each group is 120 degrees. The first fixed mooring cable 401 and the second fixed mooring cable 402 connect the main platform 1 and the wave-damping device 2 to the seabed, respectively. At the connection point, three degrees of freedom of translation are constrained, and three degrees of freedom of rotation are released.

[0113] It should be noted that, considering that nearshore photovoltaic systems are usually deployed in shallow waters with large tidal ranges, the first fixed mooring cable 401 and the second fixed mooring cable 402 adopt steel catenary anchor chains, which mainly rely on the gravity of the mooring cable itself to provide restoring stiffness.

[0114] To better understand the technical solution of the present invention, the specific functions of each component in the present invention are explained below.

[0115] In this invention, the main platform 1 is a floating body that carries the photovoltaic panel equipment, including a float 101, a main platform storage compartment platform 105, a support column 102, a floating tube 103, and a damping plate 104. The float 101 provides buoyancy to the main platform 1 and is fixed to the support column 102. The support column 102 and the floating tube 103 support the float 101 and the photovoltaic panel power generation equipment 6, and also provide a portion of the buoyancy. The damping plate 104 is an extension structure arranged circumferentially around the main platform, used to increase the damping of the main platform to improve motion performance.

[0116] The top view of the external structure of the main platform 1 is a regular hexagon. The main platform storage compartment platform 105 is a hollow annular compartment in the shape of a regular hexagon, located at the bottom of the main platform 1.

[0117] The floating tube 103 has a smaller diameter to reduce the weight of the main platform; the support column 102 has a larger diameter to ensure structural strength and to support the pontoon 101. The damping plates 104 have a rectangular cross-section and are arranged circumferentially at equal intervals on the outside of the bottom floating tube.

[0118] In this invention, the wave-damping device 2 is a ring structure arranged around the main platform. The wave-damping device 2 is a centrally symmetrical ring structure, and it is positioned separately from the main platform 1 using independent mooring.

[0119] In this invention, a fixed mooring system is used to prevent the floating photovoltaic wave energy power generation platform from undergoing large displacements in the horizontal plane, including moorings on the main platform and moorings on the wave-damping device. The fixed mooring system is always in use.

[0120] In this invention, the adaptive mooring system 5 is only activated in severe sea conditions and requires the coordinated use of a wave height monitor, a variable ballast tank, an adaptive mooring storage tank 204, an anchorage, an anchor, a connecting cable, a wave damping device, and the main platform.

[0121] Among them, wave height monitors are arranged at intervals on the outer wall of the wave-damping device to monitor the height of waves in different directions in real time over a long period of time, thereby judging the severity of sea conditions and deciding whether the main platform should activate the adaptive mooring system.

[0122] The variable ballast tank is located within the wave-damping device, and its hatch is equipped with a one-way inlet gate and a one-way outlet gate. By opening and closing the one-way inlet gate and the one-way outlet gate, the weight of the ballast water inside the tank can be controlled to adjust the draft of the wave-damping device according to different sea conditions.

[0123] The adaptive mooring storage compartment 204 is equipped with a winch (wave-damping device winch) and stores mooring cables (adaptive mooring cables). The adaptive mooring storage compartment is connected to the outside world via an anchorage channel. The connection between the anchorage channel and the adaptive mooring storage compartment 204 is the entrance, and the connection with the outside world is the exit.

[0124] The adaptive mooring cable 501 is connected at one end to the wave-damping device winch 502 and at the other end to a sinking anchor 503. The sinking anchor 503 is placed at the outlet of the anchorage 205 and is secured by the anchor stop 504. When the anchor stop 504 is opened, the sinking anchor is released freely under gravity and falls into the seabed. It is maintained in position by the weight of the sinking anchor and the interaction between the anchor claws and the seabed. At this time, the adaptive mooring system is activated.

[0125] The connecting cable is a radially arranged lightweight cable connecting the wave-damping device and the main platform. One end of the connecting cable is connected to a main platform winch 106, which is arranged circumferentially and at equal intervals within the main platform storage compartment. The other end of the connecting cable is connected to the anchor of the wave-damping device.

[0126] Both the wave-damping device winch 502 and the main platform winch 106 are equipped with corresponding winch controllers, which can constrain or release the movement of the mooring cable. The effective length of the adaptable mooring cable and the connecting cable can be adjusted by the wave-damping device winch and the main platform winch, respectively, to achieve a relaxed or tensile state as needed, and also to facilitate the adjustment of pretension.

[0127] To better understand the technical solution of the present invention, the following describes the technical solution of the present invention in conjunction with specific embodiments.

[0128] Example

[0129] In this invention, as described above, the adaptive mooring system 5 includes a wave-damping winch 502 and a wave-damping winch controller 506, as well as an adaptive mooring cable 501 and a sinking anchor 503.

[0130] like Figure 4 As shown, the adaptive mooring system 5 requires the coordinated use of wave height monitor 201, variable ballast tank 203, adaptive mooring storage tank 204, anchorage 205, anchor 503, connecting cable 207, wave damping device 2 and main platform 1.

[0131] In specific implementation, the floating photovoltaic wave energy generation platform with wave-damping device provided by the present invention includes the following working modes:

[0132] The wave height monitor 201 monitors the wave height in different directions in real time to determine whether to activate the adaptive mooring system 4.

[0133] If the wave height continuously exceeds the preset adaptive mooring system activation height within the preset system activation time (e.g., 30 minutes), the sea state where the platform is located is determined to be dangerous, and the first operation is executed: activate the adaptive mooring system 4; otherwise, the second operation is executed: do not activate the adaptive mooring system 4.

[0134] It should be noted that the activation wave height of the adaptive mooring system is the wave height at which the main platform 1 is at risk of being hit by waves. It can be selected based on the environmental conditions of the sea area where the operation is taking place or the height pre-selected by the user of the platform of this invention. Typically, the meaningful wave height under a sea state that occurs once a year can be selected.

[0135] It should be noted that during use, the wave height monitor 201 monitors the height of waves in different directions in real time to determine the severity of sea conditions and decide whether the main platform 1 should activate the adaptive mooring system 4.

[0136] In specific implementation, when it is determined that the adaptive mooring system is not enabled, the second operation includes the following:

[0137] The adaptive mooring cable 501 of the adaptive mooring system 5 is stored in the adaptive mooring storage compartment 204 of the wave-damping device 2. One end of the adaptive mooring cable 501 is connected to the wave-damping device winch 502 after passing through the winch controller 506 of the wave-damping device, and the other end is connected to the anchor 503. The anchor 503 is fixed and constrained at the exit of the anchorage 205 by the anchor stopper 504. At this time, the connecting cable 207 is arranged radially between the main platform 1 and the wave-damping device 2. One end of the connecting cable 207 is connected to the anchor 503, and the other end of the connecting cable 207 is first connected to the main platform winch 106 after passing through the main platform winch controller 107. The length is adjusted by the main platform winch 106 to ensure a slack state and avoid the movement of the wave-damping device 2 from causing additional interference to the main platform 1.

[0138] In specific implementation, when it is determined that the adaptive mooring system 5 is to be activated, the first operation includes the following:

[0139] When the anchor stopper 504 and the wave-damping device winch controller 506 are opened, the sinking anchor 503 is released freely into the seabed under the action of gravity. It is positioned by its weight and the interaction force between the anchor claw and the sea soil. The length of the adaptive mooring cable 501 is adjusted by the wave-damping device winch 502 so that the adaptive mooring cable 501 is in a slack state, so as to avoid the wave-damping device 2 from generating additional upward force on the sinking anchor 503.

[0140] At the same time, the main platform winch controller 107 is turned on, and the length of the connecting cable 207 is adjusted by the main platform winch 106 to make the connecting cable 207 tensioned. At this time, the connecting cable 207 is equivalent to a tensioned mooring cable, which can significantly reduce the motion response of the main platform 1.

[0141] When the adaptive mooring system 5 is activated, in order to compensate for the weight of the anchor 503 in the wave-damping device 2, after the anchor 503 is lowered, the one-way inlet gate 208 of the variable ballast tank 203 is opened, and seawater enters the variable ballast tank 203, thereby increasing the ballast weight of the wave-damping device 2 and maintaining a constant draft.

[0142] It should be noted that when the wave height monitor 201 detects that the wave height is consistently high over a certain period of time, it determines that the adaptive mooring system 5 should be activated. For example... Figure 5 As shown, the hollow arrow indicates the direction of movement of the adaptive mooring cable 501 and the connecting cable 207 when the adaptive mooring system 5 is activated.

[0143] In specific implementation, after performing the first operation (activating the adaptive mooring system 4), the following operations are also included:

[0144] When the wave height obtained by the wave height monitor 201 in real time is continuously lower than the preset adaptive mooring system shutdown height (e.g., the meaningful wave height under a once-a-year sea state, or the height selected in advance by the user of the platform of this invention) within the preset system shutdown time (e.g., 45 minutes), the adaptive mooring system shutdown operation is executed.

[0145] The adaptive mooring system deactivation procedure includes the following:

[0146] The main platform winch controller 107 is opened, and the connecting cable 207 is slack by adjusting the main platform winch 106. The wave-damping device winch controller 506 is opened, and the adaptive mooring cable 501 is tensioned by adjusting the wave-damping device winch 502. The anchor 503 is then pulled upwards until it returns to the outlet of the anchorage 205, causing the adaptive mooring cable 501 to retract into the adaptive mooring storage tank 204. At this time, the anchor stop 504, the wave-damping device winch controller 506, and the main platform winch controller 107 are all closed (i.e., locked). The one-way outlet gate 209 of the variable ballast tank 203 is opened, and seawater is discharged from the variable ballast tank 203 to maintain a constant draft. The entire system returns to normal. Figure 3 The normal operating status is shown.

[0147] It should be noted that the preset adaptive mooring system deactivation altitude is equal to or less than the preset adaptive mooring system activation altitude.

[0148] It should be noted that, as Figure 5 As shown, the solid arrows indicate the direction of movement of the adaptive mooring cable 501 and the connecting cable 207 when the adaptive mooring system is deactivated. If the adaptive mooring system 5 has been activated, and the wave height monitor 201 detects that the wave height is relatively low within a preset time period, it is determined that the activation (i.e., deactivation) of the adaptive mooring system 5 is terminated.

[0149] In practice, to avoid the main platform 1 and wave-damping device 2 tilting due to the application of additional weight, the connecting cable 207 is made of lightweight polyester fiber material, and the adaptive mooring cable 501 is made of the same material.

[0150] In this invention, specifically, the photovoltaic power generation device 6 is a mature, widely used, and well-encapsulated crystalline silicon solar cell module, used to absorb solar energy, generate solar power, and output it to the outside.

[0151] In this invention, specifically, the wave energy device 3 is a mature and widely used device, such as an oscillating float magnetohydrodynamic generator. The wave damping device 2 reciprocates under the action of waves and drives the generator (i.e., the oscillating float magnetohydrodynamic generator) to generate electricity, converting wave energy into electrical energy and outputting it to the outside.

[0152] Compared with the prior art, the floating photovoltaic wave energy generation platform with wave-damping device provided by the present invention has the following beneficial effects:

[0153] 1. This invention reduces wave load by setting up independent mooring wave-damping devices around the floating photovoltaic main platform, utilizing the principles of radiation wave generation and wave superposition, thus avoiding equipment damage caused by waves on the platform and improving the platform's safety and the stability of photovoltaic power generation.

[0154] 2. This invention achieves multi-energy complementarity by adding a wave energy device inside the wave-damping device, thereby improving the utilization rate of marine space. At the same time, it further increases the damping of the wave-damping device, thereby reducing its motion response.

[0155] 3. The present invention also features an adaptive mooring system that is activated when the sea waves are large. Tensioned mooring is only added when the sea conditions are dangerous. This avoids damage to the platform from capsizing or being hit by waves, and also avoids the problem of the platform being unable to adapt to tidal range due to long-term use of tensioned mooring. At the same time, it reduces the service life of tensioned mooring and lowers the risk of fatigue damage.

[0156] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A floating photovoltaic wave energy generation platform with a wave-damping device, characterized in that, It includes a main platform (1), a wave damping device (2) and a wave energy device (3), as well as an adaptive mooring system (5); On the top of the main platform (1), there is a photovoltaic power generation device (6) for generating solar power. Wave-damping devices (2) are arranged around the outer periphery of the main platform (1). The wave-damping device (2) is flexibly connected to the main platform (1) by multiple connecting cables (207); Wave damping device (2) is used to reduce the wave impact on the main platform (1), reduce wave load, and improve the stability of the main platform (1); Inside the wave-damping device (2), there are multiple wave energy devices (3); The wave-damping device (2) is used to reciprocate under the action of waves and drive the wave energy device (3) to move relative to each other; Wave energy device (3) is used to convert mechanical energy into electrical energy and output it to the outside in real time when relative motion occurs; The main platform (1) and the wave-damping device (2) are respectively connected to the adaptive mooring system (5); An adaptive mooring system (5) is used to enhance the wind and wave resistance of the main platform (1) and the wave-damping device (2) and maintain the stability of the main platform (1) and the wave-damping device (2); The main platform (1) includes: a hollow main platform storage compartment platform (105); The main platform storage compartment platform (105) is equipped with a main platform winch (106), a main platform winch controller (107), and a connecting cable (207). Multiple turns of connecting cable (207) are wound on the main platform winch (106). The main platform winch controller (107) is connected to the outwardly extending end of the connecting cable (207) and is used to control the movement constraint on the connecting cable (207) or release the movement constraint on the connecting cable (207). The wave-damping device (2) includes multiple segmented parts (200) of equal length, arranged in a ring and connected in sequence. Inside each segment (200), a wave energy device (3) is installed; A wave height monitor (201) is installed on the outer wall of each segment (200). An adaptive mooring storage compartment (204) is provided on the upper inner side of each segment (200). An adaptive mooring system (5) is arranged inside the wave-damping device storage compartment (204); The adaptive mooring system (5) includes a wave-damping winch (502) and a wave-damping winch controller (506), as well as an adaptive mooring cable (501). The wave-damping device winch (502) is wound with multiple turns of adaptable mooring cable (501); The wave-damping device winch controller (506) is connected to the outward extension end of the adaptive mooring cable (501) and is used to control the movement constraint on the adaptive mooring cable (501) or to release the movement constraint on the adaptive mooring cable (501). Below the wave-damping device storage compartment (204), there are inclined, hollow anchor channels (205). The outward extension of the adaptive mooring cable (501) passes through the anchorage channel (205) and connects to a sinking anchor (503); The anchor (503) is also connected to the outward extension of the connecting cable (207) in the main platform (1).

2. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 1, characterized in that, The main platform (1) also includes: pontoons (101), support columns (102), floating pipes (103) and damping plates (104). The top four edges of the main platform storage tank platform (105) are provided with multiple support columns (102) and multiple floats (101) distributed around it. Multiple pontoons (101) are located inside multiple support columns (102); At the top of multiple support columns (102), a horizontally distributed main platform top support frame (1001) is provided. The top of the main platform top support frame (1001) is used to place the photovoltaic panel power generation equipment; The main platform top support frame (1001) includes multiple cross-distributed floating pipes (103). Multiple damping plates (104) are arranged around the bottom of the main platform storage compartment platform (105).

3. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 1, characterized in that, A horizontally distributed main platform bottom support frame (1002) is fixedly installed in the central through hole of the main platform storage compartment platform (105). The main platform bottom support frame (1002) includes multiple cross-distributed floating pipes (103). Each pontoon (101) is connected to the top support frame of the main platform via a vertically distributed pontoon (103); The top of the bottom support frame (1002) of the main platform is fixedly connected to the bottom of the top support frame (1001) of the main platform through multiple vertically distributed floating pipes (103); And / or, The main platform storage compartment platform (105) includes multiple sub-compartment platforms (1050) distributed around it. Each compartment platform (1050) has an outwardly extending damping plate (104) on its bottom outer side. The damping plate (104) is a rectangular cross-section plate; And / or, The top and bottom of the main platform (1) are both hexagonal structures.

4. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 1, characterized in that, Anchor (503) is located inside the wave-damping device (2); The upper opening of the anchorage (205) is connected to the bottom of the wave-damping device storage compartment (204); The lower opening of the anchorage (205) is located on the inner wall of the wave-damping device (2); An anchor stop (504) is provided at the lower opening of the anchor channel (205).

5. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 1, characterized in that, Each segment (200) has a fixed ballast tank (202) at its inner bottom. A variable ballast tank (203) is provided directly above the fixed ballast tank (202). On the outer wall of the variable ballast tank (203), there are one-way inlet gates (208) and one-way outlet gates (209). The variable ballast tank (203) is used to store water for ballast. One-way inlet gate (208) and one-way outlet gate (209) are located on the outer wall of the wave-damping device (2); A one-way inlet gate (208) is located above a one-way outlet gate (209); The wave height monitor (201) is installed on the outer wall of the wave-damping device (2), and the installation height is level with the average water surface; The wave energy device (3) is installed at the same height as the wave height monitor (201) and is located below the wave damping device storage compartment (204) and above the variable ballast compartment (203).

6. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 1, characterized in that, Also includes: Fixed mooring system (4); The fixed mooring system (4) includes a first fixed mooring cable (401) and a second fixed mooring cable (402); One end of the first fixed mooring cable (401) and one end of the second fixed mooring cable (402) are respectively connected to the outer walls of the main platform (1) and the outer walls of the wave-damping device (2); The other end of the first fixed mooring cable (401) and the other end of the second fixed mooring cable (402) are respectively fixedly connected to the seabed.

7. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 1, characterized in that, The following working modes are included: The wave height is monitored in real time in different directions by the wave height monitor (201) to determine whether to activate the adaptive mooring system (5). When the wave height exceeds the preset adaptive mooring system activation height for an extended period of time, the sea state where the platform is located is determined to be dangerous, and the first operation is performed: activate the adaptive mooring system (5). Otherwise, perform the second operation: do not enable the adaptive mooring system (5).

8. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 7, characterized in that, The second step specifically includes the following: The adaptive mooring cable (501) of the adaptive mooring system (5) is stored in the adaptive mooring storage compartment (204) of the wave-dissipating device (2). One end of the adaptive mooring cable (501) is connected to the wave-dissipating device winch (502) after passing through the winch controller (506) of the wave-dissipating device, and the other end is connected to the anchor (503). The anchor (503) is fixed and constrained at the exit of the anchorage (205) by the anchor stopper (504). At this time, the connecting cable (207) is arranged radially between the main platform (1) and the wave-dissipating device (2). One end of the connecting cable (207) is connected to the anchor (503), and the other end of the connecting cable (207) is connected to the main platform winch (106) after passing through the main platform winch controller (107). The length is adjusted by the main platform winch (106) to ensure a slack state and avoid the movement of the wave-dissipating device (2) from causing additional interference to the main platform (1). And / or, The first step specifically includes the following: The anchor stopper (504) and the winch controller (506) of the wave-damping device are opened, and the sinking anchor (503) is released freely into the seabed under the action of gravity. It is positioned by its weight and the interaction force between the anchor claw and the sea soil. The length of the adaptive mooring cable (501) is adjusted by the winch (502) of the wave-damping device, so that the adaptive mooring cable (501) is in a slack state, so as to avoid the wave-damping device (2) from generating additional upward force on the sinking anchor (503). At the same time, the main platform winch controller (107) is turned on, and the length of the connecting cable (207) is adjusted by the main platform winch (106) so that the connecting cable (207) is in a tensioned state. At this time, the connecting cable (207) is equivalent to a tensioned mooring cable, which reduces the motion response of the main platform (1). When the adaptive mooring system (5) is activated, in order to compensate for the weight of the anchor (503) in the wave-damping device (2), after the anchor (503) is lowered, the one-way inlet gate (208) of the variable ballast tank (203) is opened, and seawater enters the variable ballast tank (203), thereby increasing the ballast weight of the wave-damping device (2) and maintaining a constant draft.

9. The floating photovoltaic wave energy generation platform with wave-damping device as described in claim 7 or 8, characterized in that, After performing the first operation, the following operations are also included: When the wave height obtained by the wave height monitor (201) in real time is continuously lower than the preset adaptive mooring system shutdown height within the preset system shutdown time, the adaptive mooring system shutdown operation is executed. The adaptive mooring system deactivation procedure includes the following: The main platform winch controller (107) is turned on. By adjusting the main platform winch (106), the connecting cable (207) is made to be in a slack state. The wave-damping device winch controller (506) is turned on. By adjusting the wave-damping device winch (502), the adaptive mooring cable (501) is made to be in a taut state. The anchor (503) is pulled up until the anchor (503) returns to the outlet of the anchorage (205). The adaptive mooring cable (501) is then retracted into the adaptive mooring storage tank (204). At this time, the anchor stop (504), the wave-damping device winch controller (506), and the main platform winch controller (107) are all closed. The one-way outlet gate (209) of the variable ballast tank (203) is opened, and the seawater in the variable ballast tank (203) is discharged to maintain a constant draft.

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