A self-adjusting attitude offshore photovoltaic support

Abstract

The application discloses a kind of self-adjusting sea photovoltaic support, belong to sea photovoltaic support technical field, including multi-point anchoring type floating platform, main beam rotationally arranged on floating platform, vice beam rotationally arranged on main beam, mounting frame of fixed installation in vice beam installation photovoltaic board, gyroscope sensor and drive mechanism installed on floating platform;Main beam is arranged along north-south direction;Vice beam is arranged along east-west direction;Mounting frame is equipped with illumination sensor;Drive mechanism includes main drive component and vice drive component, respectively drives main beam and vice beam rotation, to adjust the east-west orientation and north-south inclination angle of photovoltaic board;Gyroscope sensor is used to monitor the horizontal posture of floating platform, and according to the monitoring result, control drive mechanism drives main beam and vice beam reverse rotation, to compensate the sway of floating platform due to sea wave fluctuation.The application realizes the stable power generation of photovoltaic board under sea wave fluctuation, improves power generation efficiency.

Description

Technical Field

[0001] This invention relates to the field of solar photovoltaic support technology, and in particular to a self-adjusting marine photovoltaic support. Background Technology

[0002] Solar photovoltaic (PV) mounting systems are the fundamental structures designed for placing, installing, and securing solar panels in a solar PV power generation system. They are a crucial component ensuring the safe, stable, and efficient operation of a PV power station. Compared to ground-mounted PV power stations, floating PV power stations offer significant advantages: they do not occupy scarce land resources such as arable land and forest land, effectively improving the comprehensive utilization value of water areas; the open water environment facilitates the centralized arrangement and management of PV modules; the relatively clean water surface makes the modules easy to clean, reducing operation and maintenance costs; furthermore, the high reflectivity of the water surface and the temperature-regulating effect of the surrounding water effectively improve the power generation efficiency of PV modules and prevent excessively high surface temperatures. As new energy development expands from land to sea, offshore PV projects are gradually emerging. However, the complex marine environment places higher demands on the adaptability of PV systems.

[0003] Currently, most offshore photovoltaic (PV) systems employ fixed structures. Once installed, the tilt angle and orientation of the PV panels remain constant. However, as the sun moves from east to west during the day, the sunlight-receiving area of ​​the fixed-angle PV panels changes accordingly, making it difficult to maximize the utilization of sunlight intensity and limiting power generation efficiency. To address this, some existing technologies have proposed adjustable PV systems that can adjust the tilt angle of the PV panels in real time according to the sun's position, maximizing their orientation towards the sun and thus improving power generation efficiency.

[0004] However, the aforementioned existing technologies are mainly designed for environments with relatively small surface fluctuations, such as land or water. Their adjustment logic is usually based on stable tracking algorithms and cannot directly adapt to the complex marine environment. Sea waves are unpredictable, and offshore photovoltaic (PV) systems are typically installed on floating platforms. Under the influence of wind and waves, these platforms experience random rolling and pitching. In this situation, even if the systems themselves have adjustment capabilities, they struggle to cope with the frequent, violent, and irregular swaying caused by waves. The actual tilt angle of the PV panels is constantly in an uncontrollable dynamic state. This not only fails to guarantee the expected power generation efficiency but may also subject the PV panels to additional alternating loads due to severe swaying caused by bad weather, leading to structural fatigue or damage. Furthermore, the high salt spray, high humidity, and the adhesion of pollutants (such as sea salt, algae, and bird droppings) in the marine environment pose serious challenges to the corrosion resistance, structural reliability, and long-term stable operation of the PV systems. Summary of the Invention

[0005] The technical problem this invention aims to solve is to provide a self-adjusting offshore photovoltaic (PV) support system to overcome the technical shortcomings of existing offshore PV platforms, which suffer from swaying and rolling due to sea wave disturbances, making it difficult for PV panels to maintain the optimal angle of sunlight, thus reducing power generation efficiency. This support system integrates a self-adjusting attitude mechanism, enabling it to respond to wave changes in real time and flexibly adjust the north-south tilt angle of the PV panels. Simultaneously, by combining multiple light sensors deployed at various points to dynamically monitor the light intensity at different angles, the system can automatically drive the PV panels to rotate to the position with optimal light intensity, ensuring that the PV panels are always in a high-efficiency power generation state even in wave-prone environments, thereby significantly improving overall power generation efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A self-adjusting offshore photovoltaic support structure, comprising: A floating platform, wherein the floating platform is a multi-point anchored platform; The main beam is rotatably mounted on the floating platform, and the axis of the main beam is in the north-south direction; A secondary beam is rotatably mounted on the main beam, and the axis of the secondary beam is in the east-west direction; The mounting frame is fixedly installed on the sub-beam and is used to install photovoltaic panels. The mounting frame is equipped with a light sensor. The drive mechanism includes a main drive component and a secondary drive component. The main drive component is used to drive the main beam to rotate in order to adjust the east-west orientation of the photovoltaic panel. The secondary drive component is used to drive the secondary beam to rotate in order to adjust the north-south tilt angle of the photovoltaic panel. A gyroscope sensor is installed on the floating platform to monitor the horizontal attitude of the floating platform. The gyroscope sensor is configured to control the drive mechanism to drive the main beam and the sub-beam to rotate in opposite directions based on the monitoring results, so as to compensate for the swaying of the floating platform caused by wave fluctuations.

[0007] A further improvement to the technical solution of the present invention is that the main driving component includes: The drive shaft is rotatably mounted on the floating platform and corresponds one-to-one with the photovoltaic panels; A drive rack is movably mounted on the floating platform; The driven gear is fixedly connected to the end of the drive shaft and meshes with the drive rack; The third electric cylinder is installed on the floating platform, and its output end is fixedly connected to the drive rack, which is used to drive the drive rack to move back and forth.

[0008] A further improvement to the technical solution of the present invention is that the secondary driving component includes: The first electric cylinder is fixedly installed on the main beam, and its output end is rotatably connected to the secondary beam. The second electric cylinder is rotatably installed in the rotating groove on the main beam, and its output end is rotatably connected to a slider, which is slidably connected to the sub-beam.

[0009] A further improvement of the technical solution of the present invention is that: two adjacent drive shafts are fixedly connected by a connector; the connector includes a connecting block, a connecting seat, and a connecting rod, which are fixedly connected to one end of the drive shaft; the connecting seat has a connecting groove that matches the connecting block, the connecting block is embedded in the connecting groove, and is detachably connected to the connecting seat by bolts; the connecting rod is fixedly connected between two adjacent connecting seats.

[0010] A further improvement of the technical solution of the present invention is that: a stabilizing ring is fixedly connected to the main beam, a stabilizing seat is fixedly connected to the floating platform, and the stabilizing ring and the stabilizing seat are slidably connected.

[0011] A further improvement of the technical solution of the present invention is that: a protective barrier is fixedly connected to the floating platform, the mounting frame is located inside the protective barrier, and when the mounting frame moves to its lowest position, it is lower than the top of the protective barrier.

[0012] A further improvement of the technical solution of the present invention is that: a limiting plate is movably provided on the protective fence, a fourth electric cylinder is installed on the protective fence, and the limiting plate is fixedly connected to the output end of the fourth electric cylinder; when the mounting frame moves to the lowest position and the photovoltaic panel is parallel to the floating platform, the fourth electric cylinder drives the limiting plate to move to contact the upper surface of the photovoltaic panel.

[0013] A further improvement of the technical solution of the present invention is that it also includes a cleaning component, which is used to clean the photovoltaic panel using seawater.

[0014] A further improvement of the technical solution of the present invention is that: the cleaning component includes a delivery pump and a flushing pipe; the delivery pump is installed on the floating platform, and the inlet of the delivery pump is located in seawater; the flushing pipe is arranged on one side of the mounting frame and communicates with the outlet of the delivery pump, and the flushing pipe has multiple water outlets.

[0015] A further improvement of the technical solution of the present invention is that the floating platform has a square-shaped structure, which is closed on all sides and hollow in the center.

[0016] The technological advancements achieved by this invention due to the adoption of the above technical solutions are as follows: 1. This invention uses a third electric cylinder to drive a rack and pinion to reciprocate, thereby rotating the driven gear and drive shaft, enabling precise adjustment of the east-west tilt angle of the photovoltaic panel. Through the extension and retraction of the first and second electric cylinders, combined with the rotation and sliding cooperation between the sub-beam and the first and second electric cylinders, the north-south tilt angle of the photovoltaic panel can be flexibly adjusted. Combined with real-time monitoring of light intensity at various angles by a light sensor, the photovoltaic panel can be automatically rotated to the position with the maximum light intensity, thus significantly improving the power generation efficiency of the photovoltaic panel.

[0017] 2. This invention uses a gyroscope sensor to monitor the roll and pitch motions of the floating platform in real time, and controls the main drive component and the auxiliary drive component to perform counter-compensation motions, effectively offsetting the impact of the floating platform's swaying on the photovoltaic panel's attitude. This allows the photovoltaic panel to remain relatively stable under the action of ocean waves and wind currents, reducing the angle deviation of the photovoltaic panel caused by the platform's swaying and ensuring continuous and efficient photovoltaic power generation.

[0018] 3. This invention features intelligent protection against extreme weather conditions. When the gyroscope sensor detects excessive swaying or the wind speed sensor detects wind speed exceeding a safety threshold, the system prioritizes controlling the first and second electric cylinders to retract to their shortest positions. Simultaneously, the third electric cylinder is activated to push the drive rack, which in turn drives the photovoltaic panel to rotate via the driven gear and drive shaft, quickly flattening it to a position flush against the floating platform. At this point, the photovoltaic panel is completely retracted inside the protective enclosure. Simultaneously, the fourth electric cylinder drives the limiting plate to move to the upper surface of the photovoltaic panel and press it firmly, effectively preventing the photovoltaic panel from shaking or being lifted by strong winds. The combination of the protective enclosure's perimeter protection and the limiting plate's pressing and fixing provides dual protection, significantly improving the stability of the photovoltaic panel in extreme sea conditions and greatly reducing the risk of damage.

[0019] 4. In the event of night or rainy weather, the present invention can rotate the photovoltaic panel to a preset tilt angle, and use a delivery pump to transport seawater to the flushing pipe. The seawater is then sprayed onto the surface of the photovoltaic panel through the spray nozzles on the flushing pipe, which can effectively wash away the impurities, salt stains or dust accumulated on the surface of the photovoltaic panel, keep the surface of the photovoltaic panel clean, and thus ensure the power generation efficiency of the photovoltaic panel under subsequent sunlight conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a first-view structural schematic diagram of an attitude-adjustable offshore photovoltaic support structure provided in an embodiment of the present invention; Figure 2 This is a second-view structural schematic diagram of an attitude-adjustable offshore photovoltaic support structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the main beam, secondary beam, mounting frame, and drive mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram of the main beam, secondary beam, stabilizing ring, and driving mechanism in an embodiment of the present invention; Figure 5 This is a schematic diagram of the cleaning component in an embodiment of the present invention; Figure 6 This is a schematic diagram of the protective barrier, the limiting plate, and the fourth electric cylinder in an embodiment of the present invention; Figure 7 for Figure 3 A magnified schematic diagram of the local structure at point A; Figure 8 for Figure 4 A magnified schematic diagram of the local structure at point B; The components include: 1. Floating platform; 101. Drive shaft; 102. Drive rack; 103. Driven gear; 104. Third electric cylinder; 2. Main beam; 201. Connecting block; 202. Connecting seat; 203. Connecting rod; 3. Sub-beam; 301. First electric cylinder; 302. Second electric cylinder; 303. Slider; 4. Mounting frame; 401. Conveying pump; 402. Flushing pipe; 5. Light sensor; 6. Stabilizing ring; 7. Stabilizing seat; 8. Gyroscope sensor; 9. Protective enclosure; 10. Limiting plate; 11. Fourth electric cylinder. Detailed Implementation

[0021] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product or device.

[0022] 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," and "outer," 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.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: like Figures 1 to 8 As shown, a self-adjusting offshore photovoltaic support includes a floating platform 1, a main beam 2, a secondary beam 3, a mounting frame 4, a drive mechanism, and a gyroscope sensor 8.

[0025] like Figures 1 to 4 As shown, the floating platform 1 is a multi-point anchored platform; the main beam 2 is rotatably mounted on the floating platform 1, with the main beam 2 oriented north-south; the secondary beam 3 is rotatably mounted on the main beam 2, with the secondary beam 3 oriented east-west; the mounting frame 4 is fixedly mounted on the secondary beam 3, and the photovoltaic panel is mounted on the mounting frame 4, which is equipped with a light sensor 5; the main beam 2 can rotate in the east-west direction, and the secondary beam 3 can rotate in the north-south direction, thereby causing the photovoltaic panel to change and adjust its angle; the light sensor 5 moves with the mounting frame 4, and the position and angle of the light sensor 5 and the photovoltaic panel are matched. As the mounting frame 4 drives the photovoltaic panel and the light sensor 5 to rotate, the light receiving position of the light sensor 5 is perpendicular to the photovoltaic panel, that is, it coincides with the light receiving direction of the photovoltaic panel. At the same time, in conjunction with the PLC, the optimal tilt angle and azimuth angle are calculated based on the solar position algorithm and local time. The light sensor 5 monitors the light intensity of the photovoltaic panel at each position it rotates to, so that the mounting frame 4 rotates to the position with the maximum light intensity, ensuring that the photovoltaic panel is in the maximum and most suitable light receiving position, thereby ensuring the photovoltaic power generation efficiency.

[0026] like Figures 1 to 8As shown, the drive mechanism includes a main drive component and a secondary drive component. The main drive component drives the main beam 2 to rotate, and the secondary drive component drives the secondary beam 3 to rotate, thereby adjusting the tilt angle and orientation of the photovoltaic panels. The main drive component includes a drive shaft 101, a drive rack 102, and a driven gear 103. The drive shaft 101 is rotatably mounted on the floating platform 1, and each drive shaft 101 corresponds to a photovoltaic panel. Adjacent drive shafts 101 are fixedly connected by a connector. The connector includes a connecting block 201, a connecting seat 202, and a connecting rod 203. The connecting block 201 is fixedly connected to one end of the drive shaft 101, and the connecting seat 202 has a connecting groove that matches the connecting block 201. The connecting block 201 is detachably connected to the connecting seat 202 by bolts, and the connecting rod 203 is fixedly connected between two adjacent connecting seats 202; multiple drive shafts 101 along the same straight line in the north-south direction are connected by connectors, the drive rack 102 is movably mounted on the floating platform 1, the floating platform 1 is equipped with a third electric cylinder 104, the drive rack 102 is fixedly connected to the output end of the third electric cylinder 104, the driven gear 103 is fixedly connected to the end of the drive shaft 101, the driven gear 103 is fixedly connected to the connecting seat 202, the connecting seat 202 and the connecting block 201 located at the end are detachably connected by bolts, and the driven gear 103 and the drive rack 102 mesh.

[0027] like Figure 3 , Figure 4 , Figure 7 , Figure 8As shown, a stabilizing ring 6 is fixedly connected to the main beam 2, and a stabilizing seat 7 is fixedly connected to the floating platform 1. The stabilizing ring 6 and the stabilizing seat 7 are in sliding engagement. Through the sliding engagement of the stabilizing ring 6 and the stabilizing seat 7, the stability of the main beam 2 can be improved while rotating. The auxiliary drive components include a first electric cylinder 301 and a second electric cylinder 302. The first electric cylinder 301 is fixedly installed on the main beam 2, and its output end is rotatably connected to the auxiliary beam 3. A rotation groove is provided on the main beam 2, and the second electric cylinder 302 is rotatably installed inside the rotation groove. A slider 303 is rotatably connected to the output end of the second electric cylinder 302. The slider 303 is slidably connected to the auxiliary beam 3. The drive can be driven by the third electric cylinder 104. The rack 102 moves, thereby driving the driven gear 103 and multiple drive shafts 101 that are aligned in the north-south direction to rotate synchronously, adjusting the east-west angle of multiple main beams 2. The tilt angle of the sub-beam 3 in the north-south direction can be adjusted by the extension and retraction of the first electric cylinder 301 and the second electric cylinder 302. The rotation of the second electric cylinder 302 and the sliding cooperation between the slider 303 and the sub-beam 3 can increase the angle adjustment range of the sub-beam 3 and the mounting frame 4. At the same time, the first electric cylinder 301 and the second electric cylinder 302 can adjust the height of the sub-beam 3. In windy weather, the mounting frame 4 can be lowered to a position that is close to the main beam 2 and parallel to the floating platform 1, reducing the damage to the photovoltaic panels caused by strong winds.

[0028] like Figure 3 As shown, the gyroscope sensor 8 is installed on the floating platform 1 to monitor the horizontal position of the floating platform 1 and control the drive mechanism to drive the main beam 2 and the secondary beam 3 to rotate to compensate for the swaying of the floating platform 1 caused by wave fluctuations. The gyroscope sensor 8 senses the roll and pitch attitude of the floating platform 1. The gyroscope sensor 8 can also be installed on the mounting frame 4 to monitor the tilt angle of the photovoltaic panel. When the gyroscope sensor 8 senses the swaying of the floating platform 1 under the action of waves and wind, it controls the first electric cylinder 301, the second electric cylinder 302 and the third electric cylinder 104 to move in opposite directions to counteract the swaying of the platform, keep the photovoltaic panel surface relatively stationary with respect to the ground, and improve the stability of the photovoltaic panel in generating electricity in the waves.

[0029] like Figures 1 to 6As shown, to reduce damage to photovoltaic panels caused by strong winds, a protective barrier 9 is fixedly connected to the floating platform 1. The mounting frame 4 is located inside the protective barrier 9. When the mounting frame 4 is in its lowest position, it is lower than the top of the protective barrier 9. A limit plate 10 is movably installed on the protective barrier 9. A fourth electric cylinder 11 is installed on the protective barrier 9. The limit plate 10 is fixedly connected to the output end of the fourth electric cylinder 11. The limit plate 10 contacts the top of the photovoltaic panel in its lowest position, parallel to the floating platform 1. A wind speed sensor can be installed on the floating platform 1. When the gyroscope sensor 8 senses the wave height or the wind speed sensor senses the wind speed exceeding the preset safety threshold, it controls the first electric cylinder 301 and the second electric cylinder 302 to retract to their shortest state, and the third electric cylinder 104 drives the main beam 2 to rotate to a state parallel to the floating platform 1, so that the photovoltaic panel and the floating platform 1 are close together and parallel. The photovoltaic panel is located inside the protective enclosure 9, which protects the photovoltaic panel from wind and waves and reduces damage to the photovoltaic panel. At the same time, the photovoltaic panel can still generate photovoltaic power after it is close to the floating platform 1.

[0030] like Figures 1 to 5 As shown, to reduce the efficiency reduction of photovoltaic power generation caused by salt stains or other impurities generated by seawater splashing, a cleaning component is also included. This cleaning component uses seawater to clean the photovoltaic panels at night. The cleaning component includes a delivery pump 401 and a flushing pipe 402. The delivery pump 401 is mounted on the floating platform 1, with its inlet located in the seawater. The flushing pipe 402 is located on the north side of the mounting frame 4, and its outlet is connected to the outlet of the delivery pump 401. The flushing pipe 402 has multiple outlets. The floating platform 1 has a U-shaped structure. There is a gap in the middle of the floating platform 1 (it is closed on all sides and hollow in the center). At night or on cloudy days, the delivery pump 401 is turned on periodically. The delivery pump 401 sends seawater into the flushing pipe 402 and sprays the seawater onto the surface of the photovoltaic panel through the outlet. The photovoltaic panel can be rotated to an inclined state in advance, with the north side of the photovoltaic panel, which is the side with the flushing pipe 402, in a higher position. The surface of the photovoltaic panel is flushed with seawater to avoid the accumulation of impurities such as bird droppings, seaweed, salt stains and dust on the surface of the photovoltaic panel, which would reduce the photovoltaic power generation efficiency.

[0031] The working principle or usage process of the attitude self-adjusting marine photovoltaic support provided by this invention is as follows: The floating platform 1 is installed at a suitable location at sea using anchors. The photovoltaic panels are installed on the mounting frame 4. A GPS can be installed on the floating platform 1 to determine its absolute orientation. At the same time, the real-time position of the sun is determined based on the solar position algorithm of the PLC, the local time, and the sunlight perception of the light sensor 5. The operation of the first electric cylinder 301, the second electric cylinder 302, and the third electric cylinder 104 is controlled to adjust the tilt angle of the mounting frame 4 and the photovoltaic panels in the north-south and east-west directions, so that the photovoltaic panels always face the sun and are located in the position of maximum light reception, so as to carry out normal photovoltaic power generation. The floating platform 1 is equipped with an energy storage battery. Part of the electricity generated by photovoltaic power generation is used to power electronic components such as the first electric cylinder 301, the second electric cylinder 302, the third electric cylinder 104, the fourth electric cylinder 11, the gyroscope sensor 8, and the GPS. The gyroscope sensor 8 monitors the swaying of the floating platform 1 under the action of waves and wind. At the same time, the first electric cylinder 301, the second electric cylinder 302 and the third electric cylinder 104 are controlled to drive the main beam 2 and the secondary beam 3 to rotate in opposite directions to resist the swaying caused by the waves and keep the photovoltaic panel stationary relative to the ground. When the wind speed sensor detects excessive wind speed or the gyroscope sensor 8 detects large wave height, the first electric cylinder 301 and the second electric cylinder 302 are controlled to retract, and the third electric cylinder 104 drives the main beam 2 to rotate parallel to the floating platform 1, so that the photovoltaic panel descends and rotates to a position parallel and close to the floating platform 1. The protective fence 9 shields and protects the photovoltaic panel, and the fourth electric cylinder 11 drives the limit plate 10 to move the tube above the photovoltaic panel to limit it, further ensuring the safety of the photovoltaic panel. When the solar radiation intensity is lower than the preset threshold, the north side of the photovoltaic panel is rotated to a higher position, and the delivery pump 401 delivers seawater to the flushing pipe 402, through which the surface of the photovoltaic panel is flushed and cleaned.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-adjusting attitude offshore photovoltaic support, characterized in that, include: Floating platform (1), wherein the floating platform (1) is a multi-point anchored platform; The main beam (2) is rotatably mounted on the floating platform (1), and the axis of the main beam (2) is in the north-south direction; The secondary beam (3) is rotatably mounted on the main beam (2), and the axial direction of the secondary beam (3) is east-west. Mounting bracket (4) is fixedly installed on the sub-beam (3) for mounting photovoltaic panels. A light sensor (5) is provided on the mounting bracket (4). The drive mechanism includes a main drive component and a secondary drive component. The main drive component is used to drive the main beam (2) to rotate in order to adjust the east-west orientation of the photovoltaic panel. The secondary drive component is used to drive the secondary beam (3) to rotate in order to adjust the north-south tilt angle of the photovoltaic panel; A gyroscope sensor (8) is installed on the floating platform (1) to monitor the horizontal attitude of the floating platform (1). The gyroscope sensor (8) is configured to control the drive mechanism to drive the main beam (2) and the secondary beam (3) to rotate in opposite directions according to the monitoring results, so as to compensate for the swaying of the floating platform (1) caused by the wave fluctuations.

2. A self-adjusting attitude offshore photovoltaic support according to claim 1, characterized in that, The main drive component includes: A drive shaft (101) is rotatably mounted on the floating platform (1) and corresponds one-to-one with the photovoltaic panels; A drive rack (102) is movably mounted on the floating platform (1); The driven gear (103) is fixedly connected to the end of the drive shaft (101) and meshes with the drive rack (102); The third electric cylinder (104) is installed on the floating platform (1), and its output end is fixedly connected to the drive rack (102) for driving the drive rack (102) to move back and forth.

3. A self-adjusting attitude offshore PV support according to claim 2, characterized in that, The secondary drive component includes: The first electric cylinder (301) is fixedly installed on the main beam (2), and its output end is rotatably connected to the secondary beam (3); The second electric cylinder (302) is rotatably installed in the rotating groove on the main beam (2), and its output end is rotatably connected to a slider (303). The slider (303) is slidably connected to the sub-beam (3).

4. The self-adjusting attitude offshore PV support according to claim 2, characterized in that, The two adjacent drive shafts (101) are fixedly connected by a connector; the connector includes a connecting block (201), a connecting seat (202) and a connecting rod (203); the connecting block (201) is fixedly connected to one end of the drive shaft (101); the connecting seat (202) has a connecting groove that matches the connecting block (201), the connecting block (201) is embedded in the connecting groove and is detachably connected to the connecting seat (202) by bolts; the connecting rod (203) is fixedly connected between the two adjacent connecting seats (202).

5. The self-adjusting attitude offshore photovoltaic support according to claim 1, characterized in that, The main beam (2) is fixedly connected to a stabilizing ring (6), and the floating platform (1) is fixedly connected to a stabilizing seat (7). The stabilizing ring (6) and the stabilizing seat (7) are slidably connected.

6. A self-adjusting attitude offshore photovoltaic support according to claim 1, characterized in that, A protective enclosure (9) is fixedly connected to the floating platform (1). The mounting frame (4) is located inside the protective enclosure (9), and when the mounting frame (4) moves to the lowest position, it is lower than the top end of the protective enclosure (9).

7. A self-adjusting attitude offshore PV support according to claim 6, characterized in that, A limiting plate (10) is movably arranged on the protective enclosure (9). A fourth electric cylinder (11) is installed on the protective enclosure (9), and the limiting plate (10) is fixedly connected to the output end of the fourth electric cylinder (11); when the mounting frame (4) moves to the lowest position and the photovoltaic panel is parallel to the floating platform (1), the fourth electric cylinder (11) drives the limiting plate (10) to move to contact the upper surface of the photovoltaic panel.

8. The self-adjusting attitude offshore photovoltaic support according to claim 1, characterized in that, It further includes a cleaning component, which is used to clean the photovoltaic panel with seawater.

9. A self-adjusting attitude offshore PV support according to claim 8, characterized in that, The cleaning component includes a delivery pump (401) and a flushing pipe (402); the delivery pump (401) is installed on the floating platform (1), and the liquid inlet of the delivery pump (401) is located in the seawater; the flushing pipe (402) is arranged on one side of the mounting frame (4) and is communicated with the liquid outlet of the delivery pump (401), and a plurality of water outlets are opened on the flushing pipe (402).

10. The attitude self-adjusting marine photovoltaic support according to claim 1, characterized in that, The floating platform (1) is in a square shape with a closed perimeter and a hollow center.

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