Large-scale photovoltaic power generation ship and working method

Abstract

The invention discloses a large photovoltaic power generation ship and a working method. The large photovoltaic power generation ship comprises a ship body and a cab. A roller support is fixedly installed on a deck of the ship body, a winding drum shaft is rotationally connected to the roller support, and a roller is sleeved on the winding drum shaft. A gear motor is fixedly installed in a cabin of the ship body, an output shaft of the gear motor is fixedly sleeved with a second chain wheel, the second chain wheel is connected with a first chain, and the second chain wheel is in transmission connection with a transmission chain wheel arranged at the end of the roller through the first chain. A photovoltaic panel with a support is wound on the roller, and tubular air bags are fixedly connected to the two sides of the support of the photovoltaic panel respectively; propellers are arranged at the front end and the rear end of the two sides of the ship body respectively, and a propeller retainer is arranged on the outer side of each propeller. The ship body bears the retractable photovoltaic panel with the support, the regional limitation of a traditional fixed sea area floating platform is eliminated, the floating platform can be flexibly moved to the optimal sea area, and the power generation efficiency and the application scene adaptability are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the fields of photovoltaic power generation technology and shipbuilding technology, specifically relating to a large photovoltaic power generation vessel and its operating method. Background Technology

[0002] As the global energy structure shifts towards clean energy, photovoltaic power generation, as an important form of renewable energy utilization, is seeing its application scenarios continuously expand. Among them, floating photovoltaic power generation has become a research hotspot in recent years because it can save valuable land resources and the water body has a natural cooling effect on the photovoltaic panels, which can improve power generation efficiency.

[0003] Currently, floating photovoltaic (PV) power generation systems mainly exist in the form of floating platforms or arrays fixed in specific sea areas. These systems typically consist of a floating structure, an anchoring system, and PV modules, secured to nearshore or shallow sea areas by anchor chains, utilizing surface space to generate electricity. While avoiding the occupation of land resources, they have significant limitations: constrained by the anchoring system, they cannot dynamically adjust their position according to sunlight conditions; in sea areas where sunlight resources vary significantly with the seasons, maximizing power generation efficiency is difficult; and once fixed, they are difficult to relocate, resulting in high costs of system abandonment should the sea area's function change or the environment change. Fixed floating platforms are exposed to the complex marine environment for extended periods, making them susceptible to typhoons, strong ocean currents, and salt spray corrosion, leading to high equipment wear and tear; the anchoring system may fail in severe weather, causing the platform to drift or even capsize, resulting in high maintenance difficulty and costs. Existing PV arrays are mostly fixed deployments, unable to be quickly stored according to actual needs, and prone to module damage due to sudden environmental changes; furthermore, they are difficult to flexibly adjust the power generation scale and location according to electricity demand, limiting adaptability.

[0004] Therefore, a large photovoltaic power generation vessel and its operating method are provided. Summary of the Invention

[0005] The purpose of this invention is to provide a large photovoltaic power generation vessel and its operating method, so as to overcome the shortcomings of existing technologies that cannot dynamically adjust their position according to the lighting conditions, making it difficult to maximize power generation efficiency; and fixed floating platforms that are exposed to complex marine environments for a long time, resulting in high equipment wear and tear.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: In a first aspect, the present invention provides a large photovoltaic power generation vessel, including a hull and a bridge; a roller bracket is fixedly installed on the deck of the hull, a drum shaft is rotatably connected to the roller bracket, and a roller is fitted on the drum shaft, the roller being used to wind and release photovoltaic panels with brackets; A geared motor is fixedly installed inside the hull of the ship. A second sprocket is fixedly mounted on the output shaft of the geared motor. The second sprocket is connected to a first chain. The second sprocket is connected to a transmission sprocket at the end of the drum through the first chain. The second sprocket and the first chain work together to transmit power, transferring the power of the geared motor to the rotation of the drum. The photovoltaic panels are deployed and retracted by forward and reverse rotation. A photovoltaic panel with a support is wound on the roller. The photovoltaic panel is used to absorb sunlight and convert it into electrical energy. Tubular airbags are fixedly connected to both sides of the support of the photovoltaic panel. When the tubular airbags are inflated, they can provide buoyancy so that the unfolded photovoltaic panel can float on the water surface. The tubular airbags are equipped with an inflation valve and an deflation valve for inflation and deflation operations, respectively. The front and rear ends of both sides of the hull are respectively equipped with propellers, which are used to provide driving force for the hull. Each propeller is equipped with a propeller guard ring on the outside.

[0007] Furthermore, the roller support is a triangular support structure, and at least two triangular support structures are spaced apart along the roller axis on the ship's deck.

[0008] Furthermore, the photovoltaic panel support is provided with a shaft connector, which is fixedly connected to the end of the tubular airbag.

[0009] Furthermore, the tubular airbag is equipped with an inflation valve and an deflation valve, and the geared motor can drive the roller to rotate in both forward and reverse directions.

[0010] Furthermore, the first chain is a double-row roller chain, and the tooth ratio between the second sprocket and the drive sprocket is 1:3-1:5.

[0011] Furthermore, the drum shaft is connected to the roller via a key, and both ends of the drum shaft are rotatably connected to the roller support via bearings.

[0012] Furthermore, the photovoltaic panel support is provided with drainage holes, which are evenly distributed along the length of the support.

[0013] Furthermore, the tubular airbag has sealing end caps at both ends, and the sealing end caps are connected to the tubular airbag by heat sealing.

[0014] Furthermore, the deck of the ship is equipped with a photovoltaic panel guiding mechanism, which includes two sets of symmetrically arranged guide rollers.

[0015] Secondly, the present invention provides a method for operating a large photovoltaic power generation vessel, comprising the following steps: The geared motor is started to rotate forward, and the second sprocket and the first chain drive the transmission sprocket to drive the drum to rotate, gradually releasing the photovoltaic panel with brackets wound on the drum. At the same time, the tubular airbag is inflated through the inflation valve until the photovoltaic panel is fully unfolded and floats on the water surface through the tubular airbag. Adjust the ship's position so that the deployed photovoltaic panels can fully receive sunlight to generate electricity; When power generation ends or when relocation is required, the gas is released by opening the vent valve of the tubular airbag, the geared motor is started to reverse, and the drum is driven to rotate to recycle the photovoltaic panels onto the drum.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This invention provides a large photovoltaic power generation vessel that overcomes the geographical limitations of traditional fixed-area floating platforms by carrying retractable photovoltaic panels with supports on its hull. The vessel can be quickly moved to the optimal sea area by controlling the propeller from the wheelhouse, based on sunlight conditions, seasonal changes, and electricity demand, significantly improving the power generation efficiency and application adaptability of the photovoltaic system. Compared to traditional fixed floating platforms, when encountering severe weather such as typhoons and strong ocean currents, the vessel can be quickly moved by controlling the propeller from the wheelhouse to avoid risks, avoiding the corrosion and impact problems caused by the immobility of traditional fixed platforms due to long-term exposure to complex environments. A floating structure combining tubular airbags with the hull is employed, with the airbags inflating to deploy the photovoltaic panels; providing stable buoyancy support, and leveraging the hull's own wind and wave resistance to form a double protection; automated deployment and retrieval of the photovoltaic panels are achieved through a geared motor and chain drive, with the propeller reducing manual operation intensity; triangular supports and guiding mechanisms ensure stability during the deployment or retrieval of the photovoltaic panels. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a large photovoltaic power generation ship according to an embodiment of the present invention.

[0018] In the diagram, 1. Hull; 2. Wheelhouse; 3. First chain; 4. Second sprocket; 5. Gear motor; 6. Propeller; 7. Propeller guard; 8. Drum; 9. Drum shaft; 10. Tubular airbag; 11. Photovoltaic panel; 12. Shaft connector; 13. Drum support; 14. Drive sprocket. Detailed Implementation

[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0020] 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," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.

[0021] 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 one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0028] See Figure 1 This invention provides a large photovoltaic power generation vessel, including a hull 1 and a bridge 2. The hull 1 serves as the load-bearing foundation for the entire photovoltaic power generation vessel, used to install various components and provide buoyancy. A roller bracket 13 is fixedly installed on the deck of the hull 1. A drum shaft 9 is rotatably connected to the roller bracket 13, and a roller 8 is mounted on the drum shaft 9. The roller bracket 13 supports the drum shaft 9 and ensures its stable rotation. The drum shaft 9 drives the roller 8 to rotate synchronously. The roller 8 is used to wind and release photovoltaic panels 11 with supports. A reduction motor 5 is fixedly installed inside the cabin of the hull 1. The reduction motor 5 provides power for the rotation of the roller 8 and can realize the unfolding and retraction of the photovoltaic panels 11 through forward and reverse rotation. A second sprocket 4 is fixedly mounted on the output shaft of the reduction motor 5. The second sprocket 4 is connected to a first chain 3. The second sprocket 4 is connected to a transmission sprocket 14 at the end of the roller 8 through the first chain 3. The first chain 3 connects the second sprocket 4 and the transmission sprocket 14 and transmits power. The transmission sprocket 14 receives the power transmitted by the first chain 3 and drives the roller 8 to rotate. A photovoltaic panel 11 with a support is wound on the roller 8. The photovoltaic panel 11 is used to absorb sunlight and convert it into electrical energy. The support is used to fix the photovoltaic panel 11 and connect the tubular airbag 10. The tubular airbag 10 is fixedly connected to both sides of the support of the photovoltaic panel 11. After the tubular airbag 10 is inflated, it can provide buoyancy so that the unfolded photovoltaic panel 11 can float on the water surface. Propellers 6 are respectively installed at the front and rear ends of both sides of the hull 1. The propellers 6 are used to provide driving force for the hull 1, so as to realize the movement and steering of the hull 1. Each propeller 6 is provided with a propeller guard 7 on the outside, which is used to protect the propeller 6 from damage by collision with external objects.

[0029] In this embodiment, the photovoltaic panel 11 is provided with a shaft connector 12 on the support. The shaft connector 12 is used to fix the photovoltaic panel 11 support to the tubular airbag 10. The shaft connector 12 is fixedly connected to the end of the tubular airbag 10. The tubular airbag 10 is equipped with an inflation valve and an deflation valve, which are used for inflation and deflation operations, respectively.

[0030] In this embodiment, the retractable photovoltaic panel 11 is carried by the hull 1, breaking away from the geographical limitations of traditional fixed floating photovoltaic systems. Driven by the propeller 6, it can move with the ship to sea areas with better sunlight conditions, significantly improving the light-receiving efficiency and total power generation of the photovoltaic panel 11, and adapting to changes in sunlight in different seasons and sea areas. The retractable photovoltaic panel 11 design, combined with the inflation and deflation function of the tubular airbag 10, allows for rapid retrieval of the photovoltaic panel 11 via the geared motor 5 driving the drum 8 in inclement weather, preventing long-term exposure to the complex marine environment and corrosion from wind, waves, and salt spray, thus reducing the risk of equipment damage. The propeller guard 7 effectively protects the propeller 6 from collisions with underwater debris, improving the reliability of the power system. The transmission system, consisting of the geared motor 5, the second sprocket 4, the first chain 3, and the transmission sprocket 14, enables automated deployment and retrieval of the photovoltaic panel 11, eliminating the need for manual operation and reducing labor intensity. The cooperative structure between the drum 8 and the drum shaft 9, supported by the drum bracket 13, ensures a stable and orderly deployment and retrieval process for the photovoltaic panel 11, reducing mechanical wear.

[0031] In a more specific embodiment of the present invention, the roller support 13 is a triangular support structure with high structural stability. At least two triangular support structures are arranged at intervals along the axial direction of the roller 8 on the deck of the hull 1 to enhance the support effect on the roller shaft 9.

[0032] In a more specific embodiment of the present invention, the first chain 3 is a double-row roller chain, which can withstand a large transmission load, and the tooth ratio of the second sprocket 4 to the transmission sprocket 14 is 1:3-1:5, which can achieve the effect of deceleration and torque increase.

[0033] In a more specific embodiment of the present invention, the roller shaft 9 and the drum 8 are connected by a key to ensure that they rotate synchronously. The two ends of the roller shaft 9 are rotatably connected to the drum support 13 by bearings to reduce rotational friction.

[0034] In a more specific embodiment of the present invention, the support of the photovoltaic panel 11 is provided with drainage holes, which are evenly distributed along the length of the support to drain water from the surface of the support, reduce weight and prevent corrosion.

[0035] In a more specific embodiment of the present invention, the tubular airbag 10 is provided with sealing end caps at both ends. The sealing end caps are connected to the tubular airbag 10 by heat sealing to ensure the airtightness of the tubular airbag 10 and prevent air leakage.

[0036] In a more specific embodiment of the present invention, a photovoltaic panel guiding mechanism is provided on the deck of the hull 1. The guiding mechanism includes two sets of symmetrically arranged guide rollers for guiding the photovoltaic panel 11 during the unfolding and retraction process to prevent it from deviating.

[0037] In a more specific embodiment of the present invention, the hull 1 adopts a steel hull structure, and the bridge 2 is located at the front of the hull 1. The bridge 2 integrates the whole ship control system, which can realize centralized operation of photovoltaic panel deployment and retraction, hull movement and airbag inflation and deflation.

[0038] Three triangular roller supports 13 are fixedly installed longitudinally at 3-meter intervals along the mid-section of the deck 1 of the ship. These supports are welded from Q235 steel plates, are 1.2 meters high, and support the roller shaft 9. The roller shaft 9 is made of 45# steel, with a diameter of 200mm and a length of 8 meters. Both ends are rotatably connected to the roller supports 13 via self-aligning roller bearings of model 22324. Rollers 8 are mounted on the roller shaft 9 via flat keys. Rollers 8 are seamless steel pipe welded structures, with an outer diameter of 600mm and a length of 7.5 meters. Their surface is covered with an anti-slip rubber layer and are used to wind the photovoltaic panels 11.

[0039] A 15kW geared motor 5 is fixedly installed in the midship compartment of hull 1. Its output speed is 10-50 r / min, and it can be controlled to rotate in both directions via a PLC control system. A second sprocket 4 with 20 teeth is fixedly mounted on the output shaft of the geared motor 5 via a key connection. This sprocket is connected to a transmission sprocket 14 at the end of the roller 8 via a double-row roller chain of model 16A. The transmission sprocket 14 has 80 teeth, and the tooth ratio between the two is 1:4, which can achieve a speed reduction and torque increase effect.

[0040] A photovoltaic panel 11 with an aluminum alloy support is wound on the roller 8. The photovoltaic panel 11 is a monocrystalline silicon module with a total power of 50kW. Each panel is 1.6m × 1m in size, and there are 32 panels in total. They are spliced ​​together by the support to form an array with a total length of 50 meters and a width of 8 meters. On both sides of the aluminum alloy support of the photovoltaic panel 11, a tubular airbag 10 is fixedly connected every 2 meters via shaft connectors 12. The tubular airbag 10 is made of aging-resistant PVC material, with a diameter of 500mm and a length of 8 meters. Both ends are connected with sealed end caps by heat sealing. Each airbag is equipped with an electric inflation valve and a manual deflation valve.

[0041] Each of the four propellers 6 has a power of 30kW and a diameter of 1.2 meters. They are made of copper alloy. Each propeller 6 has a stainless steel propeller guard 7 with a diameter of 1.5 meters. The four propellers 6 are driven by independent variable frequency motors, which can start and stop independently and adjust the steering angle 360°, so that the maximum speed of the hull 1 can reach 8 knots.

[0042] A photovoltaic panel guiding mechanism is installed on the deck of hull 1 in front of roller 8, including two sets of symmetrically arranged rubber guide rollers, one at the top and one at the bottom of each set, with adjustable spacing, used to guide and limit the photovoltaic panel 11 during deployment and retraction. The aluminum alloy support of the photovoltaic panel 11 also has a 10mm diameter drainage hole every 50cm along its length to drain surface water.

[0043] In another embodiment of the present invention, a method for operating a large photovoltaic power generation vessel is also provided, comprising the following steps: Start the geared motor 5 to rotate forward, and drive the transmission sprocket 14 through the second sprocket 4 and the first chain 3 to drive the drum 8 to rotate, gradually releasing the photovoltaic panel 11 with bracket wound on the drum 8. At the same time, inflate the tubular airbag 10 through the inflation valve until the photovoltaic panel 11 is fully unfolded and floats on the water surface through the tubular airbag 10. Power is provided by the geared motor 5, and the torque is transmitted to the transmission sprocket 14 through the transmission mechanism consisting of the second sprocket 4 and the first chain 3, driving the drum 8 to rotate forward around the drum shaft 9, so that the wound photovoltaic panel 11 is gradually released as the drum rotates. At the same time, the tubular airbag 10 is filled with gas through the inflation valve, and the buoyancy of the gas makes the unfolded photovoltaic panel 11 float on the water surface with the support, forming a stable photovoltaic power generation array. During this process, the drum support 13 provides rigid support for the drum 8 to ensure a smooth release process.

[0044] Adjust the position of the hull 1 so that the deployed photovoltaic panels 11 can fully receive sunlight to generate electricity; Relying on the load-bearing and positioning capabilities of the hull 1, the floating photovoltaic panel 11 is positioned so that its light-receiving surface is fully aligned with sunlight by adjusting the hull's position, thus converting light energy into electrical energy using the photovoltaic effect. The tubular airbag 10 continuously provides buoyancy to maintain the photovoltaic panel 11's attitude on the water, while the propeller 6 assists in fine-tuning the hull's position to optimize the angle of sunlight reception and improve power generation efficiency.

[0045] When power generation ends or needs to be transferred, the gas is released by opening the vent valve of the tubular airbag 10, the geared motor 5 is started to reverse, and the drum 8 is driven to rotate to roll the photovoltaic panel 11 back onto the drum 8.

[0046] When power generation needs to be stopped or the hull needs to be moved, the tubular airbag 10 releases gas through the deflation valve, reducing buoyancy and facilitating recovery; the geared motor 5 reverses to drive the drum 8 to rotate in the opposite direction, orderly winding the photovoltaic panel 11 back onto the surface of the drum 8, completing the storage. The entire process achieves the deployment and recovery of the photovoltaic panel 11 through the forward and reverse control of mechanical transmission. Combined with the inflation and deflation of the airbag to adjust the buoyancy, the system can flexibly switch between working and storage modes to adapt to different working conditions.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large photovoltaic power generation vessel, characterized in that, It includes a hull (1) and a bridge (2); a roller bracket (13) is fixedly installed on the deck of the hull (1), a drum shaft (9) is rotatably connected to the roller bracket (13), and a roller (8) is fitted on the drum shaft (9); A geared motor (5) is fixedly installed inside the cabin of the hull (1). A second sprocket (4) is fixedly mounted on the output shaft of the geared motor (5). The second sprocket (4) is connected to a first chain (3). The second sprocket (4) is connected to a transmission sprocket (14) at the end of the roller (8) through the first chain (3). A photovoltaic panel (11) with a support is wound on the roller (8), and tubular airbags (10) are fixedly connected to both sides of the support of the photovoltaic panel (11). The front and rear ends of the hull (1) are respectively provided with propellers (6), and each propeller (6) is provided with a propeller guard (7) on the outside.

2. The large photovoltaic power generation vessel according to claim 1, characterized in that, The roller support (13) is a triangular support structure, and at least two triangular support structures are provided at intervals along the axial direction of the roller (8) on the deck of the hull (1).

3. A large photovoltaic power generation vessel according to claim 1, characterized in that, The photovoltaic panel (11) is provided with a shaft connector (12) on its support, and the shaft connector (12) is fixedly connected to the end of the tubular airbag (10).

4. A large photovoltaic power generation vessel according to claim 1, characterized in that, The tubular airbag (10) is equipped with an inflation valve and an deflation valve.

5. A large photovoltaic power generation vessel according to claim 1, characterized in that, The first chain (3) is a double-row roller chain, and the tooth ratio of the second sprocket (4) to the transmission sprocket (14) is 1:3-1:

5.

6. A large photovoltaic power generation vessel according to claim 1, characterized in that, The drum shaft (9) is connected to the drum (8) by a key, and the two ends of the drum shaft (9) are rotatably connected to the drum support (13) by bearings.

7. A large photovoltaic power generation vessel according to claim 1, characterized in that, The photovoltaic panel (11) has drainage holes on its support, which are evenly distributed along the length of the support.

8. A large photovoltaic power generation vessel according to claim 1, characterized in that, The tubular airbag (10) is provided with sealing end caps at both ends, and the sealing end caps are connected to the tubular airbag (10) by heat sealing.

9. A large photovoltaic power generation vessel according to claim 1, characterized in that, The hull (1) is equipped with a photovoltaic panel guiding mechanism on its deck, which includes two sets of symmetrically arranged guide rollers.

10. The operating method of a large photovoltaic power generation vessel according to any one of claims 1-9, characterized in that, Includes the following steps: Start the geared motor (5) to rotate forward, and drive the transmission sprocket (14) through the second sprocket (4) and the first chain (3) to drive the drum (8) to rotate, gradually releasing the photovoltaic panel (11) with bracket wound on the drum (8), and at the same time inflating the tubular airbag (10) through the inflation valve until the photovoltaic panel (11) is fully unfolded and floats on the water surface through the tubular airbag (10); Adjust the position of the hull (1) so that the unfolded photovoltaic panels (11) can fully receive sunlight to generate electricity; When power generation ends or needs to be transferred, open the gas release valve of the tubular airbag (10) to release the gas, start the geared motor (5) to reverse, drive the drum (8) to rotate and roll the photovoltaic panel (11) back onto the drum (8).

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