Offshore power generation device based on satellite communication and positioning and control method thereof

Abstract

The invention relates to the technical field of offshore power generation, and discloses an offshore power generation device based on satellite communication and positioning and a control method thereof.The offshore power generation device comprises a fan power generation assembly, a photovoltaic power generation assembly, a winch, a connecting chain and a control mechanism, a plurality of photovoltaic platforms form a photovoltaic array, the winch is arranged on a fan stand column, and the connecting chain is arranged on the fan stand column; one end of the connecting chain is wound on the winch, the other end of the connecting chain is connected with at least one photovoltaic platform located on the outer edge, the control mechanism comprises a monitoring module, a satellite communication module, a control module and a land monitoring module, and the monitoring module is used for determining operation information of the photovoltaic array; the satellite communication module is used for determining satellite positioning information of the photovoltaic array through a low-orbit communication satellite; and the control module is used for controlling the operation of the winch based on the operation information and the satellite positioning information. And the operation state of the photovoltaic array is comprehensively analyzed in combination with satellite positioning, so that the monitoring of the photovoltaic array is more intelligent and accurate, and the operation safety and stability of the photovoltaic platform are improved.

Description

Technical Field

[0001] This application relates to the field of offshore power generation technology, and in particular to an offshore power generation device and its control method based on satellite communication and positioning. Background Technology

[0002] Coastal areas in China, such as Fujian, Guangdong, and Hainan, are prone to typhoons. Due to the significant difference between sea conditions during typhoons and normal weather, the tidal range in typical application areas can reach 4 meters. In related technologies, photovoltaic platforms are difficult to adapt to changes in tidal range, which can easily lead to collisions and damage between floating photovoltaic platforms at sea. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] This application proposes an offshore power generation device, comprising: a wind turbine power generation component, a photovoltaic power generation component, a winch, a connecting chain, and a control mechanism. The wind turbine power generation component includes a wind turbine column. The photovoltaic power generation component includes multiple interconnected photovoltaic platforms floating on the sea surface, forming a photovoltaic array. The winch is located on the wind turbine column. One end of the connecting chain is wound around the winch, and the other end of the connecting chain is connected to at least one photovoltaic platform located on the outer edge. The control mechanism includes a monitoring module, a satellite communication module, a control module, and a land monitoring module. The monitoring module is used to determine the operating information of the photovoltaic array. The satellite communication module is used to determine the satellite positioning information of the photovoltaic array via a low-Earth orbit communication satellite. The land monitoring module is communicatively connected to both the satellite communication module and the control module. The control module is used to control the operation of the winch based on the operating information and the satellite positioning information, thereby loosening or tightening the connecting chain. The satellite positioning information includes at least one of the following: the shape and orientation of the photovoltaic array, and the platform spacing between adjacent photovoltaic platforms. The operating information includes the platform spacing or the connection tension of the connecting chain.

[0005] In some of the technical solutions provided in this application, the connecting chain includes: multiple steel wire ropes and multiple first anchor chains connected together, with the steel wire ropes and first anchor chains being arranged alternately.

[0006] In some of the technical solutions provided in this application, the photovoltaic array is divided into multiple rows and columns. When the photovoltaic platform is in the initial position, the initial column spacing between adjacent photovoltaic platforms in any row is the same, and the initial row spacing between adjacent photovoltaic platforms in any column is the same.

[0007] In some of the technical solutions provided in this application, the lines connecting multiple photovoltaic platforms are rectangular and form a platform ring, with multiple platform rings stacked and nested. The photovoltaic power generation module also includes: a second anchor chain and a third anchor chain, the second anchor chain connecting adjacent photovoltaic platforms within the same platform ring, and the third anchor chain connecting adjacent platform rings, with the third anchor chain forming an inclined angle with the second anchor chain.

[0008] In some of the technical solutions provided in this application, the offshore power generation device further includes: two fourth anchor chains, which are located on one side of the photovoltaic platform. One end of any fourth anchor chain is connected to the corner of the photovoltaic platform, and the other ends of the two fourth anchor chains are connected to the second anchor chain.

[0009] In some of the technical solutions provided in this application, the monitoring module includes: an image acquisition unit and an analysis module. The image acquisition unit is located on any photovoltaic platform and is used to acquire images of adjacent photovoltaic platforms. The analysis module determines the platform spacing between any photovoltaic platform and adjacent photovoltaic modules based on the images.

[0010] In some of the technical solutions provided in this application, the wind turbine power generation assembly also includes: a power supply circuit, a winch and a control mechanism connected to the power supply circuit so that the power supply circuit can provide electrical energy.

[0011] The second aspect of this application provides a control method for an offshore power generation device based on satellite communication and positioning, applicable to any of the offshore power generation devices described above. The control method includes: a control monitoring module determining the operational information of the photovoltaic array; a control satellite communication module determining the satellite positioning information of the photovoltaic array; controlling a winch based on the operational information and satellite positioning information; specifically, the step of controlling the winch based on the operational information and satellite positioning information includes: when the satellite positioning information is in an abnormal state, a land monitoring module sends an alarm signal; the land monitoring module controls the winch to tighten the connecting chain through the control module. The step of controlling the winch based on the operational information and satellite positioning information further includes: controlling the tension applied to the connecting chain by the winch; when the platform distance between adjacent photovoltaic platforms is less than a distance threshold, controlling the winch to tighten the connecting chain at a tightening speed of 0.5 m / min to 2 m / min; when the connecting tension of the connecting chain reaches a tension threshold, controlling the winch to stop operating.

[0012] In some technical solutions provided in this application, before the steps of the control monitoring module determining the operating information of the photovoltaic array and the control satellite communication module determining the satellite positioning information of the photovoltaic array, the following steps are also included: determining that the offshore power generation device is in an early warning state; controlling the winch to tighten the connecting chain and increase the distance between adjacent photovoltaic platforms; and controlling the tension force applied by the winch to the connecting chain. Specifically, the steps also include: controlling the tension force of the winch based on the wave strength of the sea surface.

[0013] In some technical solutions provided in this application, the step of controlling the tension of the winch based on the wave intensity of the sea surface specifically includes: when the wave intensity is greater than the large wave threshold, reducing the tension of the winch; when the wave intensity is less than the small wave threshold, increasing the tension of the winch and increasing the spacing between adjacent photovoltaic platforms; wherein, the large wave threshold is greater than the small wave threshold.

[0014] Compared with related technologies, the present invention has at least the following beneficial effects: The winch mechanism allows for real-time adjustment of the distance between photovoltaic (PV) platforms, enhancing the flexibility and controllability of their distribution. This effectively reduces the risk of collisions and enables the PV platforms to adapt to tidal variations. It also avoids the high costs associated with designing PV platform structures for the most dangerous typhoon weather conditions, thus reducing the manufacturing and installation costs of PV modules. Furthermore, the control module works in conjunction with the monitoring and satellite communication modules, combining satellite positioning to comprehensively analyze the operational status of the PV array. This makes the monitoring of the PV array more intelligent and precise, improving the safety and stability of the PV platform operation. Moreover, connecting fixed offshore wind turbines and floating PV platforms via mooring enables "wind and solar co-generation," enhancing the stability of offshore power generation. This fully utilizes the large sea area between offshore wind turbines, allowing wind turbines and PV systems to share the sea area, as well as transformers and cables, improving the utilization efficiency of scarce near-shore marine resources and offshore facilities, and avoiding the high costs associated with independently constructing floating PV systems. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of some embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A top view of an embodiment of an offshore power generation device provided in this application; Figure 2 A side view of an embodiment of an offshore power generation device provided in this application; Figure 3 A schematic diagram of the connecting chain structure provided in one embodiment of this application; Figure 4 This is one of the structural schematic diagrams of a photovoltaic platform provided in this application; Figure 5 A second schematic diagram of the structure of a photovoltaic platform according to an embodiment of this application; Figure 6 for Figure 1 A magnified view of point D in the middle.

[0016] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows: 10. Offshore power generation unit; 100. Wind turbine support column; 110. Installation platform; 210. Photovoltaic platform; 211. Platform assembly; 220. Second anchor chain; 230. Third anchor chain; 240. Fourth anchor chain; 300. Winch; 400. Connecting chain; 410. Wire rope; 420. First anchor chain; 500. Sea surface. Detailed Implementation

[0017] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0018] The first embodiment of this application provides an offshore power generation device 10, such as... Figure 1 and Figure 2 As shown, the offshore power generation device 10 includes: a wind turbine power generation component, a photovoltaic power generation component, a winch 300, a connecting chain 400, and a control mechanism. The wind turbine power generation component includes a wind turbine column 100. The photovoltaic power generation component includes multiple interconnected photovoltaic platforms 210 floating on the sea surface 500, forming a photovoltaic array. The winch 300 is located on the wind turbine column 100. One end of the connecting chain 400 is wound around the winch 300, and the other end of the connecting chain 400 is connected to at least one photovoltaic platform 210 located on the outer edge. The control mechanism includes a monitoring module, a satellite communication module, a control module, and a land monitoring module. The monitoring module is used to determine the operating information of the photovoltaic array. The satellite communication module is used to determine the satellite positioning information of the photovoltaic array through a low-orbit communication satellite. The land monitoring module is communicatively connected to the satellite communication module and the control module. The control module is used to control the operation of the winch 300 based on the operating information and the satellite positioning information to loosen or tighten the connecting chain 400. Among them, the satellite positioning information includes at least one of the following: the shape and orientation of the photovoltaic array, and the platform spacing between adjacent photovoltaic platforms 210; the operation information includes the platform spacing or the connection tension of the connecting chain 400.

[0019] In this embodiment, the wind turbine power generation component converts wind energy into electrical energy through the wind turbine on the wind turbine column 100, thereby generating electricity using offshore wind energy. The photovoltaic power generation component converts absorbed solar energy into electrical energy through the photovoltaic platform 210, thereby generating electricity using offshore solar energy. Multiple photovoltaic platforms 210 floating on the sea surface 500 are interconnected. A winch 300 is provided on the wind turbine column 100. Specifically, the wind turbine column 100 has an installation platform 110, and the winch 300 is located on the installation platform 110. One end of a connecting chain 400 is wound around the winch 300, and the other end of the connecting chain 400 is connected to at least one photovoltaic platform 210 located on the outer edge. Specifically, when the photovoltaic platforms 210 form multiple rows and columns, the connecting chain 400 connects to the outermost photovoltaic platform 210. When the photovoltaic platforms 210 form a row or a column, the connecting chain 400 connects to the photovoltaic platform 210 at the end.

[0020] The winch 300 is positioned above sea level, causing the connecting chain 400 to extend upwards at an angle. A control mechanism connected to the motor of the winch 300 controls the direction of operation and tension of the winch 300. The control mechanism can be a relay control circuit. By rotating the winch, the winch 300 can loosen and tighten the connecting chain 400, allowing the connecting chain 400 to move closer to or further away from the outer photovoltaic platform 210, thereby adjusting the position of multiple photovoltaic platforms 210 on the sea surface 500 and consequently adjusting the spacing between the photovoltaic platforms 210.

[0021] The winch 300 controls the extension and retraction length of the connecting chain 400 to ensure that the spacing between the photovoltaic platforms 210 is greater than or equal to the safe initial spacing. As the position of the photovoltaic platforms 210 gradually deviates due to the influence of waves, when the spacing between the photovoltaic platforms 210 is small, the winch 300 tightens the connecting chain 400 to pull the outermost photovoltaic platforms 210 closer together, causing them to move outwards and increasing the spacing between them, thus preventing collisions between the photovoltaic platforms 210.

[0022] The control module and monitoring module are connected. The monitoring module sends the acquired platform spacing to the control module. When the platform spacing is less than the spacing threshold, it indicates that the spacing between the photovoltaic platforms 210 is too small, posing a significant risk of collision. The control module controls the winch 300 to slowly tighten the connecting chain 400 to increase the spacing between the photovoltaic platforms 210 and prevent collisions that could damage them. The monitoring module also detects the connection tension of the connecting chain 400. The connection tension gradually increases during the tightening process. When the connection tension reaches the tension threshold, the control module controls the winch 300 to automatically stop, achieving mechanical overload protection. This prevents collisions between the photovoltaic platforms 210 and ensures the safety of the wind turbine column 100 and the winch 300 themselves, avoiding safety hazards caused by excessive tension. This dynamic spacing control ensures the safety of the wind turbine platform and the winch 300.

[0023] The satellite communication module is used to connect with low-Earth orbit (LEO) satellites and establish a remote communication connection between the marine and land-based equipment for transmitting control commands and data. Short-range communication between the control module and the winch 300 is achieved via fiber optic cable. A land-based monitoring module, which can be a ground control console, is installed on land. The land-based monitoring module and the control module achieve long-range communication between the land and sea surfaces 500 via the satellite communication module. The satellite communication module connects with LEO satellites, with a communication frequency ≤20 seconds. In addition to the analysis and control functions of the monitoring module, the land-based monitoring module also works with satellite positioning to monitor the overall status of the photovoltaic array. The satellite communication module utilizes the high-precision positioning (meter-level) service of LEO satellites to identify key floating units of the photovoltaic array and observes the overall status of the array based on these key floating units. Specifically, the key floating units can be the four photovoltaic platforms 210 located at corner positions. The land-based monitoring module receives satellite positioning information from the satellite communication module to monitor the shape, spacing, and orientation of the photovoltaic array in real time. When the photovoltaic array deforms due to wind, waves, or currents, or when the spacing between photovoltaic modules is uneven, or when the orientation of the photovoltaic array deviates too much from the initial angle, the satellite positioning information is in an abnormal state. The land monitoring module sends an alarm signal, and the land monitoring personnel can remotely control the control module by operating the land monitoring module to tighten the connecting chain 400 with the winch 300 to correct the deviation and solve the problem of the photovoltaic array's movement and deformation.

[0024] It should be noted that, compared to ordinary satellite communications, low-Earth orbit (LEO) communication satellites, due to their closer proximity to the ground, offer lower communication latency, stronger wide-area coverage, and higher bandwidth. Furthermore, LEO communication satellite technology is already mature and widely used in various fields. For example, before operation, the satellite communication module sends test signals to the LEO communication satellite to conduct transmission tests, communication speed tests, stability tests, and linkage coupling tests.

[0025] The winch 300 allows for real-time adjustment of the distance between photovoltaic platforms 210, enhancing the flexibility and controllability of their distribution. This effectively reduces the risk of collisions between platforms, enabling them to adapt to tidal variations and avoiding the high costs associated with designing platforms for the most dangerous typhoon weather conditions. It also lowers the manufacturing and installation costs of photovoltaic modules. Furthermore, the control module works in conjunction with the monitoring and satellite communication modules, combining satellite positioning to comprehensively analyze the operational status of the photovoltaic array. This makes monitoring more intelligent and precise, improving the safety and stability of the photovoltaic platforms 210. Moreover, connecting fixed offshore wind turbines and floating photovoltaic platforms 210 via mooring enables wind and solar power generation in a complementary manner, enhancing the stability of offshore power generation. This fully utilizes the large sea area between wind turbines in the offshore wind farm, allowing wind and solar power to share the sea area, as well as transformers and cables. This improves the utilization efficiency of scarce near-shore marine resources and offshore facilities, avoiding the high costs associated with independently constructing floating offshore photovoltaic systems.

[0026] In some embodiments provided in this application, such as Figure 3 As shown, the connecting chain 400 includes: a plurality of steel wire ropes 410 and a plurality of first anchor chains 420 connected together, with the steel wire ropes 410 and the first anchor chains 420 arranged alternately.

[0027] In this embodiment, the structure of the connecting chain 400 is defined. The connecting chain 400 consists of alternately arranged wire ropes 410 and first anchor chains 420, with multiple wire ropes 410 and multiple first anchor chains 420 distributed at intervals. For example, the wire ropes 410 and the first anchor chains 420 are of the same length, and the first anchor chains 420 can be made of steel. The wire ropes 410 have a certain degree of elasticity relative to the first anchor chains 420. The intercalated wire ropes 410 can provide a buffer for the tensioning action of the winch 300, preventing the connecting chain 400 from breaking due to excessive tension. Furthermore, the wire ropes 410 are relatively lightweight, thereby reducing the overall weight of the connecting chain 400, making it easier for the winch 300 to control the winding and unwinding of the connecting chain 400, and reducing the power consumption required by the winch 300.

[0028] In some embodiments provided in this application, such as Figure 1 As shown, there are multiple wind turbine columns 100, and each wind turbine column 100 is equipped with a winch 300. Multiple winches 300 are arranged around multiple photovoltaic platforms 210.

[0029] In this embodiment, the arrangement of the winches 300 is defined. Multiple winches 300 are arranged circumferentially around the photovoltaic platform 210, so that the multiple winches 300 can pull the photovoltaic platform 210 in different directions around the circumference, thereby flexibly adjusting the mooring restoring force of the photovoltaic platform 210 and improving the ability of the photovoltaic platform 210 to resist tides.

[0030] For example, the number of winches 300 can be 4.

[0031] In some embodiments provided in this application, such as Figure 1 , Figure 4 and Figure 5 As shown, the photovoltaic array is divided into multiple rows and columns. When the photovoltaic platform 210 is in the initial position, the initial column spacing between adjacent photovoltaic platforms 210 in any row is the same, and the initial row spacing between adjacent photovoltaic platforms 210 in any column is the same.

[0032] In this embodiment, the distribution of multiple photovoltaic platforms 210 in the initial position is defined. The spacing B between adjacent photovoltaic platforms 210 in the same row is the initial column spacing, and the spacing A between adjacent photovoltaic platforms 210 in the same column is the initial row spacing. The extension directions of the rows and columns are perpendicular to each other, so that the multiple photovoltaic platforms 210 form a rectangular array of multiple rows and columns. This makes the distribution of photovoltaic platforms 210 more dispersed and uniform. Furthermore, when the winch 300 pulls the photovoltaic platforms 210, the photovoltaic platforms 210 in the middle position are subjected to more uniform force, making it easier to restore the photovoltaic platforms 210 to the initial position.

[0033] In some embodiments, the number of photovoltaic platforms 210 can be 4 in a 2×2 distribution, 9 in a 3×3 distribution, 6 in a 2×3 distribution, or 12 in a 3×4 distribution. Figure 4 There are 16 photovoltaic platforms distributed in a 4×4 pattern, with 210 photovoltaic platforms in total. Figure 5 25 of them are distributed in a 5×5 pattern.

[0034] In other embodiments, the photovoltaic platform 210 is in an asymmetric array configuration.

[0035] In some embodiments provided in this application, such as Figure 4 and Figure 5 As shown, the number of rows and columns of the multiple photovoltaic platforms 210 are the same, and the initial row spacing and the initial column spacing are equal.

[0036] In this embodiment, the distribution of the photovoltaic platforms 210 at the initial position is further defined. At the initial position, the outer contours of multiple photovoltaic platforms 210 are connected to form a square, and the spacing between adjacent photovoltaic platforms 210 is the same. This makes the center points of two adjacent photovoltaic platforms 210 in the same row and the center points of two adjacent photovoltaic platforms 210 in an adjacent row form a square, further making the distribution of photovoltaic platforms 210 more uniform and the force on photovoltaic platforms 210 more uniform.

[0037] In some embodiments provided in this application, such as Figure 4 and Figure 5 As shown, the lines connecting multiple photovoltaic platforms 210 form a rectangle and constitute a platform cluster 211, with multiple platform clusters 211 stacked together. The photovoltaic power generation module also includes: a second anchor chain 220 and a third anchor chain 230. The second anchor chain 220 connects adjacent photovoltaic platforms 210 within the same platform cluster 211, and the third anchor chain 230 connects adjacent platform clusters 211. The third anchor chain 230 and the second anchor chain 220 form an inclined angle.

[0038] In this embodiment, the connection method of the photovoltaic platform 210 is defined. The connection line of multiple photovoltaic platforms 210 is rectangular and forms a platform group 211. The outer platform group 211 surrounds the outer periphery of the adjacent inner platform group 211, so that multiple platform groups 211 are stacked and nested, and the photovoltaic platform 210 is arranged to radiate outward from the center position.

[0039] For example, such as Figure 4 As shown, there are 2 platform groups 211, 4 photovoltaic platforms 210 in the inner platform group 211, and 12 photovoltaic platforms 210 in the outer platform group 211. Figure 5 As shown, there are 2 platform groups 211, 8 photovoltaic platforms 210 in the inner platform group 211, and 16 photovoltaic platforms 210 in the outer platform group 211.

[0040] Adjacent photovoltaic platforms 210 within the same platform group 211 are connected by a second anchor chain 220. Adjacent platform groups 211 are connected by a third anchor chain 230, which connects photovoltaic platforms 210 located at an angle within the platform group 211. The second anchor chain 220 extends in the same direction as the row or column, and the third anchor chain 230 forms an inclined angle with the second anchor chain 220; exemplarily, the inclined angle can be 45°. Since the photovoltaic platforms 210 are distributed in an array, the second anchor chain 220 extends along... Figure 4 The horizontal / vertical extension in the middle, the third anchor chain 230 along Figure 4 The upward / downward extension in the middle makes the connection between multiple photovoltaic platforms 210 more uniform, reduces the number of connecting anchor chains, and avoids entanglement between the connecting anchor chains.

[0041] For example, the second anchor chain 220 and the third anchor chain 230 can be made of steel. The extension direction of the third anchor chain 230 is the same as the line connecting the diagonally opposite winches 300, making it easier for the central platform 212 to follow the retraction direction of the winches 300.

[0042] In some embodiments provided in this application, such as Figure 6 As shown, the offshore power generation device 10 also includes: two fourth anchor chains 240, which are located on one side of the photovoltaic platform 210. One end of any fourth anchor chain 240 is connected to the corner of the photovoltaic platform 210, and the other ends of the two fourth anchor chains 240 are connected to the second anchor chain 220.

[0043] In this embodiment, two fourth anchor chains 240 are provided on one side of the photovoltaic platform 210. The two ends of the two fourth anchor chains 240 are respectively connected to the corner of the photovoltaic platform 210 and the second anchor chain 220, so that the fourth anchor chains 240 form a stable triangular connection structure, and the mooring points of the photovoltaic platform 210 are distributed at the corner, making the force on the photovoltaic platform 210 more uniform. The photovoltaic platform 210 can move stably under the traction of the second anchor chain 220, reducing the deformation of the photovoltaic platform 210 under tension.

[0044] In some embodiments provided in this application, the monitoring module includes an image acquisition unit and an analysis module. The image acquisition unit is located on any photovoltaic platform 210 and is used to acquire images of adjacent photovoltaic platforms 210. The analysis module determines the platform spacing between any photovoltaic platform 210 and adjacent photovoltaic modules based on the images.

[0045] In this embodiment, the image acquisition device can be a camera or a video camera, and there can be multiple such devices. For example, adjacent photovoltaic platforms 210 are provided on one side of the partition wall of each photovoltaic platform 210, and an image acquisition device is provided on any partition wall of any photovoltaic platform 210 to acquire images of the corresponding adjacent photovoltaic platforms 210. The analysis module analyzes the acquired images to determine the platform spacing between the photovoltaic platform 210 with the image acquisition device and the adjacent photovoltaic platforms 210 in the image, thereby understanding and judging the spacing status between the photovoltaic platforms 210.

[0046] For example, the monitoring module also includes a force sensor disposed on the connecting chain 400 to detect the connection tension of the connecting chain 400.

[0047] In some embodiments provided in this application, the wind turbine power generation assembly further includes: a power supply circuit, a winch 300 and a control mechanism connected to the power supply circuit so that the power supply circuit can provide electrical energy.

[0048] In this embodiment, the wind turbine power generation component transmits the converted electrical energy to the outside through the power supply circuit. The winch 300 is connected to the power supply circuit, enabling the wind turbine power generation component to provide power for the operation of the winch 300 and the control mechanism. This reduces the control cost of the photovoltaic platform 210, avoids the need for additional power supply devices, and simplifies the connection lines of the offshore power generation device 10.

[0049] In a second aspect of this application, a control method for a marine power generation device based on satellite communication and positioning is provided, for use in any of the above embodiments of the marine power generation device, the control method comprising: Step 30: The control monitoring module determines the operating information of the photovoltaic array, and the control satellite communication module determines the satellite positioning information of the photovoltaic array; Step 40: Control the winch machine based on operational information and satellite positioning information; Step 40, which controls the winch based on operational information and satellite positioning information, specifically includes: Step 411: When the satellite positioning information is in an abnormal state, the land monitoring module sends an alarm signal; Step 412: The land monitoring module controls the winch to tighten the connecting chain via the control module; Step 40, which controls the winch based on operational information and satellite positioning information, further includes: Step 421: Control the winch to apply tension to the connecting chain. When the platform spacing between adjacent photovoltaic platforms is less than the spacing threshold, control the winch to tighten the connecting chain at a tightening speed of 0.5 m / min to 2 m / min. Step 422: When the connecting tension of the connecting chain reaches the tension threshold, control the winch to stop running.

[0050] In this embodiment, the control mechanism simultaneously controls the monitoring module to determine the operating information of the photovoltaic array, controls the satellite communication module to determine the satellite positioning information of the photovoltaic array, and controls the winch based on the operating information and satellite positioning information.

[0051] The control module and monitoring module are connected. The monitoring module sends the acquired platform spacing to the control module. When the platform spacing is less than a threshold, it indicates that the spacing between the photovoltaic platforms is too small, posing a significant risk of collision. The control module then controls the winch to slowly tighten the connecting chain to increase the spacing between the photovoltaic platforms and prevent collisions that could damage them. Furthermore, the slow tightening speed of the winch reduces the external load exerted by the connecting chain on the winch and wind turbine columns, allowing the photovoltaic platforms to recover to a safe initial spacing within a preset time using the vibrations caused by ocean waves. This enables intelligent control of the winch through intelligent control methods.

[0052] For example, the spacing threshold can be 4 meters, the tightening speed can be 1 meter / minute, the initial spacing can be 14 meters, and the preset time for the photovoltaic platform 210 to return to the initial position can be 10 minutes.

[0053] The monitoring module also detects the connection tension of the connecting chain. The connection tension gradually increases during tightening. When the connection tension reaches a tension threshold, the control module automatically stops the winch to achieve mechanical overload protection. This prevents collisions with the photovoltaic platform while ensuring the safety of the wind turbine column and the winch itself, avoiding safety hazards caused by excessive tension. It also enables dynamic adjustment of the spacing to ensure the safety of the wind turbine platform and the winch. For example, the tension threshold can be 80% of the winch's rated tension.

[0054] In addition to the analysis and control functions of the monitoring module, the land-based monitoring module also works with satellite positioning to monitor the overall condition of the photovoltaic array. The satellite communication module utilizes the high-precision positioning (meter-level) service of low-Earth orbit communication satellites to identify the key floating units of the photovoltaic array and observe the overall condition of the array based on these units. Specifically, the key floating units can be the four photovoltaic platforms located at corner positions. The land-based monitoring module receives satellite positioning information from the satellite communication module to monitor the shape, spacing, and orientation of the photovoltaic array in real time. When the photovoltaic array deforms due to wind, waves, or currents, or when the spacing of the photovoltaic modules is uneven, or when the orientation of the array deviates too much from its initial angle, the satellite positioning information is in an abnormal state. The land-based monitoring module sends an alarm signal, and land-based monitoring personnel can remotely control the control module by operating the land-based monitoring module. The control module then controls the winch to slowly tighten the connecting chain to correct the deviation and resolve the movement and deformation issues of the photovoltaic array.

[0055] In some embodiments provided in this application, before step 30, where the control monitoring module determines the operating information of the photovoltaic array and the control satellite communication module determines the satellite positioning information of the photovoltaic array, the method further includes: Step 21: Determine that the offshore power generation unit is in an early warning state; Step 22: Control the winch to tighten the connecting chain and increase the spacing between adjacent photovoltaic platforms; Step 421, which controls the tension applied by the winch to the connecting chain, specifically includes: Step 4211: Control the tension of the winch based on the wave force of the sea surface.

[0056] In this embodiment, before a typhoon arrives, the control mechanism determines that the offshore power generation device is in an early warning state. The control mechanism adjusts the spacing between the photovoltaic platforms in advance, controls the winch to tighten the connecting chain first, and increases the spacing between the photovoltaic platforms in advance to prevent collisions between the photovoltaic platforms during climate change, improves the photovoltaic platforms' ability to cope with severe sea conditions, and achieves the effect of "preparing for a rainy day".

[0057] In some embodiments provided in this application, step 4211, which controls the tension of the winch based on the wave force of the sea surface, specifically includes: Step 4312: When the wave force is greater than the large wave threshold, reduce the tension of the winch. Step 4313: When the wave intensity is less than the small wave threshold, increase the tension of the winch and increase the spacing between adjacent photovoltaic platforms; Among them, the threshold for large waves is greater than the threshold for small waves.

[0058] In this embodiment, the wave strength fluctuates, and the control mechanism employs different adjustment strategies under "calm" and "turbulent" conditions. When the wave strength exceeds the large wave threshold, indicating large waves and relatively rough sea conditions, the control mechanism reduces the winch tension, allowing the connecting chain to drift with the waves, reducing the resistance between the winch and the waves, and allowing the photovoltaic platforms to approach each other without collision. When the wave strength is below the small wave threshold, indicating small waves and relatively calm sea conditions, the winch's rotational resistance is relatively low, and the control mechanism controls the winch to rotate and pull the photovoltaic platforms closer together, increasing the distance between the photovoltaic platforms. This achieves intelligent control of the photovoltaic array under different environments, improves the control flexibility of the photovoltaic platform, and increases the application range and service life of the offshore power generation device.

[0059] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," 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 unit 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.

[0061] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The above are merely some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A marine power generation device based on satellite communication and positioning, characterized in that, include: A wind turbine power generation assembly, the wind turbine power generation assembly including a wind turbine column; A photovoltaic power generation module, comprising multiple interconnected photovoltaic platforms floating on the sea surface, wherein the multiple photovoltaic platforms form a photovoltaic array; A winch is installed on the fan column; A connecting chain, one end of which is wound around the winch, and the other end of which is connected to at least one photovoltaic platform located on the outer edge; The control mechanism includes a monitoring module, a satellite communication module, a control module, and a land monitoring module. The monitoring module is used to determine the operating information of the photovoltaic array. The satellite communication module is used to determine the satellite positioning information of the photovoltaic array via a low-orbit communication satellite. The land monitoring module is communicatively connected to the satellite communication module and the control module. The control module is used to control the operation of the winch based on the operating information and the satellite positioning information to loosen or tighten the connecting chain. The satellite positioning information includes at least one of the following: the shape and orientation of the photovoltaic array, and the platform spacing between adjacent photovoltaic platforms. The operation information includes the platform spacing or the connection tension of the connecting chain.

2. The marine power generation device based on satellite communication and positioning according to claim 1, characterized in that, The connection chain includes: Multiple steel wire ropes and multiple first anchor chains are connected, and the steel wire ropes and first anchor chains are arranged alternately.

3. The marine power generation device based on satellite communication and positioning according to claim 1 or 2, characterized in that, The photovoltaic array is divided into multiple rows and columns. When the photovoltaic platform is in its initial position, the initial column spacing between adjacent photovoltaic platforms in any row is the same, and the initial row spacing between adjacent photovoltaic platforms in any column is the same.

4. The marine power generation device based on satellite communication and positioning according to claim 1 or 2, characterized in that, The lines connecting multiple photovoltaic platforms form a rectangle and constitute a platform ring, with multiple platform rings stacked and nested together; the photovoltaic power generation module also includes: The second anchor chain connects adjacent photovoltaic platforms within the same platform group circle; The third anchor chain connects to the adjacent platform rings, and the third anchor chain forms an inclined angle with the second anchor chain.

5. The marine power generation device based on satellite communication and positioning according to claim 4, characterized in that, The photovoltaic power generation module also includes: Two fourth anchor chains are located on one side of the photovoltaic platform. One end of any fourth anchor chain is connected to the corner of the photovoltaic platform, and the other ends of the two fourth anchor chains are connected to the second anchor chain.

6. The marine power generation device based on satellite communication and positioning according to claim 1 or 2, characterized in that, The monitoring module includes: An image acquisition device is installed on any of the photovoltaic platforms, and the image acquisition device is used to acquire images of adjacent photovoltaic platforms; An analysis module, based on the image, determines the platform spacing between any of the photovoltaic platforms and adjacent photovoltaic modules.

7. The marine power generation device based on satellite communication and positioning according to claim 1 or 2, characterized in that, The wind turbine power generation components also include: A power supply circuit is provided, in which the winch and the control mechanism are connected to the power supply circuit, enabling the power supply circuit to provide electrical energy.

8. A control method for an offshore power generation device based on satellite communication and positioning, characterized in that, For an offshore power generation device according to any one of claims 1 to 7, the control method comprises: The control and monitoring module determines the operating information of the photovoltaic array, and the control satellite communication module determines the satellite positioning information of the photovoltaic array; The winch is controlled based on the operational information and the satellite positioning information; The step of controlling the winch based on the operational information and the satellite positioning information specifically includes: When the satellite positioning information is in an abnormal state, the land monitoring module sends an alarm signal; The land monitoring module controls the winch to tighten the connecting chain via the control module. The step of controlling the winch based on the operational information and the satellite positioning information further includes: The winch is controlled to apply tension to the connecting chain. When the platform spacing between adjacent photovoltaic platforms is less than a spacing threshold, the winch is controlled to tighten the connecting chain at a tightening speed of 0.5 m / min to 2 m / min. When the connection tension of the connecting chain reaches the tension threshold, the winch is controlled to stop operating.

9. The control method for an offshore power generation device based on satellite communication and positioning according to claim 8, characterized in that, Before the steps of the control and monitoring module determining the operating information of the photovoltaic array and the control satellite communication module determining the satellite positioning information of the photovoltaic array, the method further includes: It has been determined that the offshore power generation unit is in an early warning state; The winch is controlled to tighten the connecting chain, increasing the spacing between adjacent photovoltaic platforms; The step of controlling the tension force applied by the winch to the connecting chain specifically includes: The tension of the winch is controlled based on the wave intensity of the sea surface.

10. The control method for an offshore power generation device based on satellite communication and positioning according to claim 9, characterized in that, The step of controlling the tension of the winch based on the wave force of the sea surface specifically includes: When the wave force is greater than the large wave threshold, reduce the tension of the winch. When the wave intensity is less than the small wave threshold, increase the tension of the winch and increase the spacing between adjacent photovoltaic platforms; The large wave threshold is greater than the small wave threshold.

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