Offshore photovoltaic platform

Abstract

The invention discloses an offshore photovoltaic platform which is formed by arranging and connecting a plurality of photovoltaic platform units in a matrix, so that the size and the wind and wave resistance of the offshore photovoltaic platform are increased, the total area of a photovoltaic panel is expanded, and the power generation capacity is improved. Each photovoltaic platform unit comprises a photovoltaic panel, a supporting frame, four sets of supporting floating pipe structures and a base. The supporting floating pipe structure comprises a supporting vertical pipe, a lifting driving mechanism is arranged on the supporting vertical pipe, and the telescopic end of the lifting driving mechanism is hinged to the supporting frame. And the photovoltaic panel can be driven by four sets of lifting driving mechanisms below to be adjusted, so that the photovoltaic panel can incline towards the sun side, the obliquely-incident sunlight can irradiate a larger area of the photovoltaic panel, and the power generation capacity is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore power generation platforms, and in particular to an offshore photovoltaic platform. Background Art

[0002] Offshore photovoltaic platforms are offshore power generation platforms used to generate electricity near the coast. Existing offshore photovoltaic platforms are basically single platform structures with poor wind and wave resistance. Existing offshore photovoltaic platforms have photovoltaic panels fixed on the bottom frame and are basically laid flat at sea without tilt adjustment. In the morning or afternoon, when the angle of sunlight is large, the effective area that can be irradiated on the photovoltaic panel is small, and the power generation capacity during this period is relatively weak. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a new type of offshore photovoltaic platform, which arranges and connects multiple photovoltaic platform units in a matrix, increases the volume and wind and wave resistance of the offshore photovoltaic platform, expands the overall area of ​​the photovoltaic panels, and improves the power generation capacity. The photovoltaic panels in each photovoltaic platform unit can be driven and adjusted by the four sets of lifting drive mechanisms below, so that the photovoltaic panels can be tilted toward the sun side, so that the oblique sunlight can illuminate a larger area of ​​the photovoltaic panels, further improving the power generation capacity.

[0004] The technical solution of the present invention provides an offshore photovoltaic platform, comprising a plurality of photovoltaic platform units arranged in a matrix and a platform control system;

[0005] The photovoltaic platform unit includes a photovoltaic panel, a support frame connected to the bottom of the photovoltaic panel, four sets of rectangularly arranged supporting floating tube structures connected below the support frame, and a base connected below the four sets of supporting floating tube structures;

[0006] The supporting floating pipe structure comprises a vertically extending supporting riser, a floating pipe sleeved on the supporting riser, and a lifting drive mechanism installed in the supporting riser;

[0007] The telescopic end of each set of the lifting drive mechanism extends above the supporting riser and is hinged to the supporting frame;

[0008] The base is rectangular, and the lower end of each of the support risers is connected to the base;

[0009] The four corners of the base are respectively connected with a transverse connecting pipe and a longitudinal connecting pipe;

[0010] In two adjacent photovoltaic platform units, the two transverse connecting tubes extending toward each other are connected, and the two longitudinal connecting tubes extending toward each other are connected;

[0011] Each set of the lifting drive mechanisms is respectively connected to the platform control system signal.

[0012] In one of the optional technical solutions, the lifting drive mechanism includes a driving motor installed in the supporting vertical tube, a vertical screw drivingly connected to the rotating shaft of the driving motor, a lifting column slidably assembled in the supporting vertical tube, and a ball head connected to the upper end of the lifting column;

[0013] The lifting column has a column internal threaded hole opening downward, and the upper end of the vertical screw is connected to the column internal threaded hole;

[0014] A ball joint seat is installed at the bottom of the support frame corresponding to the position of each ball head;

[0015] The ball head is movably assembled in the ball socket groove of the ball joint seat;

[0016] The drive motor is connected to the platform control system by signal.

[0017] In one of the optional technical solutions, a transverse telescopic drive mechanism is connected between the two connected transverse connecting pipes, and the transverse telescopic drive mechanism is connected to the platform control system signal;

[0018] When the transverse telescopic drive mechanism is in an initial state, the two transverse connecting pipes are in contact with each other;

[0019] When the transverse telescopic driving mechanism is in an extended state, the two transverse connecting pipes are separated.

[0020] In one of the optional technical solutions, the transverse telescopic drive mechanism includes a first fixed sleeve fixedly installed in one of the transverse connecting tubes, a first sliding sleeve fixedly installed in another of the transverse connecting tubes, a first motor installed in the first fixed sleeve, and a first screw drivingly connected to the motor shaft of the first motor;

[0021] One end of the first sliding sleeve is slidably connected to the first fixed sleeve, the first sliding sleeve has a first internal threaded hole, and one end of the first screw rod is connected to the first internal threaded hole;

[0022] A first sealing ring is respectively installed between the pipe openings of the two transverse connecting pipes and the first sliding sleeve;

[0023] The first motor is connected to the platform control system signal.

[0024] In one of the optional technical solutions, the photovoltaic panel is rectangular;

[0025] The photovoltaic panel is respectively provided with first light sensors along two longitudinally extending side edges;

[0026] The first light sensor is connected to the platform control system signal.

[0027] In one of the optional technical solutions, a longitudinal telescopic drive mechanism is connected between the two connected longitudinal connecting pipes, and the longitudinal telescopic drive mechanism is connected to the platform control system signal;

[0028] When the longitudinal telescopic drive mechanism is in an initial state, the two longitudinal connecting tubes are in contact with each other;

[0029] When the longitudinal telescopic driving mechanism is in an extended state, the two longitudinal connecting tubes are separated.

[0030] In one of the optional technical solutions, the longitudinal telescopic drive mechanism includes a second fixed sleeve fixedly installed in one of the longitudinal connecting tubes, a second sliding sleeve fixedly installed in another of the longitudinal connecting tubes, a second motor installed in the second fixed sleeve, and a second screw drivingly connected to the motor shaft of the second motor;

[0031] One end of the second sliding sleeve is slidably connected to the second fixed sleeve, the second sliding sleeve has a second internal threaded hole, and one end of the second screw rod is connected to the second internal threaded hole;

[0032] A second sealing ring is respectively installed between the pipe openings of the two longitudinal connecting pipes and the second sliding sleeve;

[0033] The second motor is connected to the platform control system signal.

[0034] In one of the optional technical solutions, the photovoltaic panel is rectangular;

[0035] The photovoltaic panel is respectively provided with a second light sensor along two side edges extending laterally;

[0036] The second light sensor is connected to the platform control system signal.

[0037] In one of the optional technical solutions, the base includes four base modules arranged at intervals, and two adjacent base modules are connected by a connecting rod;

[0038] The lower end of each of the supporting risers is connected to one of the base modules, and the lower end of the floating pipe is connected to the base module.

[0039] In one of the optional technical solutions, a rectangular heave plate is hung under each photovoltaic platform unit, and the four corners of the heave plate are connected to the four base modules respectively through hanging chains.

[0040] The above technical solution has the following beneficial effects:

[0041] The offshore photovoltaic platform provided by the present invention is composed of a plurality of photovoltaic platform units arranged and connected in a matrix, which increases the volume and wind and wave resistance of the offshore photovoltaic platform, expands the overall area of ​​the photovoltaic panels, and improves the power generation capacity.

[0042] Each photovoltaic platform unit includes a photovoltaic panel, a support frame, four sets of supporting floating tube structures and a base. The supporting floating tube structure includes a supporting riser, on which a lifting drive mechanism is configured, and the telescopic end of the lifting drive mechanism is hinged to the supporting frame. The photovoltaic panel can be driven and adjusted by the four sets of lifting drive mechanisms below, so that the photovoltaic panel can be tilted toward the sun side, so that the oblique sunlight can illuminate a larger area of ​​the photovoltaic panel, further improving the power generation capacity.

[0043] Each support riser is sleeved with a floating tube, which is mainly used to provide buoyancy in the water. The base connected to the bottom of the support riser plays the role of installation support and also plays the role of lowering the center of gravity of the photovoltaic platform unit to enhance stability.

[0044] The offshore photovoltaic platform provided by the present invention can adjust the distance between the two photovoltaic platform units in a horizontal arrangement through a horizontal telescopic drive mechanism, and can adjust the distance between the two photovoltaic platform units in a vertical arrangement through a vertical telescopic drive mechanism to suit different offshore operating conditions. When the wind and waves at sea are small, the distance between the two photovoltaic platform units is increased, the air circulation is good, each photovoltaic panel can be fully exposed to the sun, and adjacent photovoltaic panels will not affect each other. When the wind and waves at sea are strong, the distance between the two photovoltaic platform units is reduced to increase the structural stability and improve the ability to resist wind and waves.

[0045] In the morning or afternoon, when the sunlight is at a large angle, the photovoltaic panels are tilted toward the sun. By adjusting the distance, it is also possible to prevent the next / next photovoltaic panel from being partially blocked by the previous / previous photovoltaic panel, ensuring that the effective area of ​​each photovoltaic panel can be exposed to sunlight, further improving the power generation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0047] Figure 1 A three-dimensional image of an offshore photovoltaic platform provided by an embodiment of the present invention at a first viewing angle;

[0048] Figure 2 A stereoscopic image of an offshore photovoltaic platform provided by an embodiment of the present invention at a second viewing angle;

[0049] Figure 3A schematic diagram showing the connection of three photovoltaic platform units;

[0050] Figure 4 It is a three-dimensional diagram of a photovoltaic platform unit;

[0051] Figure 5 A three-dimensional diagram of the assembled photovoltaic panels, support frame, supporting floating tube structure and base;

[0052] Figure 6 A three-dimensional diagram of the assembled supporting floating tube structure and the base module;

[0053] Figure 7 It is a three-dimensional diagram of the ball joint seat;

[0054] Figure 8 It is a cross-sectional view of the ball joint seat;

[0055] Fig. 9 A cross-sectional view of the assembled ball joint, supporting floating tube structure and base module;

[0056] Fig.10 It is a cross-sectional view of a transverse telescopic driving mechanism connected between two transverse connecting pipes;

[0057] Fig.11 It is a schematic diagram of two transverse connecting pipes being separated when the transverse telescopic driving mechanism is extended;

[0058] Fig.12 It is a cross-sectional view of a longitudinal telescopic drive mechanism connected between two longitudinal connecting pipes;

[0059] Fig.13 It is a schematic diagram of two longitudinal connecting tubes being separated when the longitudinal telescopic driving mechanism is extended;

[0060] Fig.14 A schematic diagram of a photovoltaic panel provided with a first light sensor and a second light sensor;

[0061] Fig.15 It is a schematic diagram of signal connections between the lifting drive mechanism, the lateral telescopic drive mechanism, the longitudinal telescopic drive mechanism, the first light sensor and the second light sensor and the platform control system respectively. DETAILED DESCRIPTION

[0062] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0063] like Figure 1-5 and Fig.15 As shown, an offshore photovoltaic platform 200 provided by an embodiment of the present invention includes a plurality of photovoltaic platform units 100 arranged in a matrix and a platform control system 201 .

[0064] The photovoltaic platform unit 100 includes a photovoltaic panel 1, a support frame 2 connected to the bottom of the photovoltaic panel 1, four sets of rectangularly arranged supporting floating tube structures 3 connected below the support frame 2, and a base 4 connected below the four sets of supporting floating tube structures 3.

[0065] The supporting floating pipe structure 3 includes a vertically extending supporting riser 31 , a floating pipe 32 sleeved on the supporting riser 31 , and a lifting drive mechanism 33 installed in the supporting riser 31 .

[0066] The telescopic end of each lifting drive mechanism 33 extends above the supporting standpipe 31 and is hinged to the supporting frame 2 .

[0067] The base 4 is rectangular, and the lower end of each support riser 31 is connected to the base 4 .

[0068] The four corners of the base 4 are respectively connected to the horizontal connection pipes 43 and the vertical connection pipes 44 .

[0069] In two adjacent photovoltaic platform units 100 , two transverse connecting tubes 43 extending toward each other are connected, and two longitudinal connecting tubes 44 extending toward each other are connected.

[0070] Each lifting drive mechanism 33 is respectively connected to the platform control system 201 by signals.

[0071] The offshore photovoltaic platform 200 provided by the present invention is formed by a plurality of photovoltaic platform units 100 arranged and connected in a matrix, which increases the volume and wind and wave resistance of the offshore photovoltaic platform 200, expands the overall area of ​​the photovoltaic panel 1, and improves the power generation capacity. The horizontal extension direction of the matrix is ​​divided into horizontal and vertical directions, and the height direction of the photovoltaic platform unit 100 is called vertical for the convenience of subsequent description. The offshore photovoltaic platform 200 has a platform control system 201, and the platform control system 201 can be placed on the offshore photovoltaic platform 200 or in a control room on the shore. The platform control system 201 includes a computer control system, and the computer controls the automatic operation of various electrical equipment. The content about how photovoltaic panels generate electricity is not the invention point of this case. The specific content can refer to the content in the prior art.

[0072] Each photovoltaic platform unit 100 includes a photovoltaic panel 1 , a supporting frame 2 , four sets of supporting floating tube structures 3 and a base 4 .

[0073] The support frame 2 is installed at the bottom of the photovoltaic panel 1 to support the photovoltaic panel 1. The photovoltaic panel 1 and the support frame 2 preferably adopt a rectangular structure.

[0074] The supporting floating pipe structure 3 includes a supporting riser 31, and the supporting riser 31 is preferably a square tube. A floating pipe 32 is sleeved on the outer peripheral surface of the supporting riser 31. The floating pipe 32 is made of PE material to provide buoyancy for the photovoltaic platform unit 100. The pipe diameter of the floating pipe 32 can be selected and designed according to needs. A lifting drive mechanism 33 is also configured in the supporting riser 31, and the telescopic end of the lifting drive mechanism 33 extends above the supporting riser 31 and is hinged to the supporting frame 2. The four corners of the supporting frame 2 are supported and adjusted by a set of lifting drive mechanisms 33 respectively, so that the telescopic length of each lifting drive mechanism 33 can be adjusted as needed to tilt the supporting frame 2 so that the photovoltaic panel 1 faces the direction of light. In particular, in the morning or afternoon, the light slope is large, and the photovoltaic panel 1 is driven by the four sets of lifting drive mechanisms 33 below to adjust, so that the photovoltaic panel 1 can be tilted toward the sun side, so that the oblique sunlight can illuminate a larger area of ​​the photovoltaic panel 1, further improving the power generation capacity. According to actual needs, one, two or three of the four lifting drive mechanisms 33 can be extended to tilt the photovoltaic panel 1.

[0075] A base 4 is connected below the four support risers 31, which plays a role in installation support and also plays a role in lowering the center of gravity of the photovoltaic platform unit 100 to enhance stability. The base 4 can be a metal base or a concrete base. The lower end of the floating tube 32 is connected to the base 4 to improve the connection stability. The four corners of the base 4 are respectively installed with a transverse connecting pipe 43 and a longitudinal connecting pipe 44. The transverse connecting pipe 43 is perpendicular to the longitudinal connecting pipe 44 and extends toward an adjacent photovoltaic platform unit 100. Along the transverse direction, that is, the axial direction of the transverse connecting pipe 43, two adjacent photovoltaic platform units 100 are connected by two transverse connecting pipes 43 extending toward each other, so as to connect the two photovoltaic platform units 100 in the transverse direction. The two transverse connecting pipes 43 extending toward each other refer to that the two transverse connecting pipes 43 extend toward the space between the two photovoltaic platform units 100. In the longitudinal direction, that is, the axial direction of the longitudinal connecting tube 44, two adjacent photovoltaic platform units 100 are connected by two longitudinal connecting tubes 44 extending toward each other, so as to connect the two photovoltaic platform units 100 in the longitudinal direction. The two longitudinal connecting tubes 44 extending toward each other refer to the two longitudinal connecting tubes 44 extending toward each other toward the space between the two photovoltaic platform units 100.

[0076] Each component can be coated with an anti-corrosion layer as needed to improve corrosion resistance.

[0077] Preferably, when adjusting the tilt of the photovoltaic panels 1, the photovoltaic panels 1 of each photovoltaic platform unit 100 of the offshore photovoltaic platform 200 are adjusted synchronously so that all the photovoltaic panels 1 face the direction of sunlight.

[0078] The lifting drive mechanism 33 can be a piston drive mechanism or a motor drive mechanism. Each lifting drive mechanism 33 is connected to the platform control system 201 through a wire to achieve signal transmission. The platform control system 201 can control four lifting drive mechanisms 33 to move independently.

[0079] According to the needs, the four lifting drive mechanisms 33 can be named lifting drive mechanisms No. 1 to No. 4 in sequence. According to the specific longitude and latitude of the offshore photovoltaic platform 200, several selection modes (including parameters such as the tilt angle and the telescopic length of each lifting drive mechanism) are preset in the platform control system 201 in advance for users to select and control or for computer automatic control.

[0080] As required, a transformer, a battery, etc. can be configured on the offshore photovoltaic platform 200 to store part of the photovoltaic electricity in the battery and convert it into a suitable voltage. The lifting drive mechanism 33 is connected to the battery through a wire, and the battery supplies power to the lifting drive mechanism 33 and the following electrical appliances, drive mechanisms, etc.

[0081] In one embodiment, if Figure 6-9 and Fig.15 As shown, the lifting drive mechanism 33 includes a driving motor 331 installed in the supporting riser 31, a vertical screw 332 connected to the rotating shaft of the driving motor 331, a lifting column 333 slidably assembled in the supporting riser 31, and a ball head 335 connected to the upper end of the lifting column 333.

[0082] The lifting column 333 has a column internal threaded hole 3331 opening downward, and the upper end of the vertical screw rod 332 is connected to the column internal threaded hole 3331 .

[0083] A ball joint seat 21 is installed at the bottom of the support frame 2 corresponding to the position of each ball head 335 .

[0084] The ball head 335 is movably assembled in the ball socket groove 213 of the ball joint seat 21 .

[0085] The driving motor 331 is connected to the platform control system 201 via signals.

[0086] In this embodiment, the lifting drive mechanism 33 adopts a screw mechanism, which has precise driving.

[0087] The lifting drive mechanism 33 includes a driving motor 331, a vertical screw rod 332, a lifting column 333 and a ball head 335. The driving motor 331 adopts a stepping motor or a servo motor, which can rotate forward and backward and is easy to control. The driving motor 331 is installed in the supporting standpipe 31. As needed, a sealing ring is installed around the driving motor 331 to prevent water leakage. The driving motor 331 is connected to the platform control system 201 through a wire to realize signal transmission, and is also connected to the battery through a wire, and the battery supplies power to the driving motor 331. The platform control system 201 can control each driving motor 331 to operate independently, and can also control each driving motor 331 to operate synchronously.

[0088] The lower end of the vertical screw 332 is directly connected to the rotating shaft of the driving motor 331 or is connected through a speed reduction mechanism. The lifting column 333 is preferably a square tube, which is slidably assembled in the support vertical tube 31 and can only slide up and down but cannot rotate. The upper end of the lifting column 333 extends above the support vertical tube 31, and the ball head 335 is connected to the upper end of the support vertical tube 31 through the connecting shaft 334. The lifting column 333 has a column internal threaded hole 3331, and the upper end of the vertical screw 332 is connected to the column internal threaded hole 3331.

[0089] A ball joint seat 21 is installed at the bottom of the support frame 2 corresponding to the position of each ball head 335. The ball joint seat 21 is formed by docking two symmetrical seat bodies 211. The outer peripheral surface of the seat body 211 has an ear plate 212 to fasten the two seat bodies 211 together by bolts. A half groove is set on the inner side of each seat body 211. After the two seat bodies 211 are connected, the two half grooves are docked to form a ball socket groove 213 for assembling the ball head 335. One seat body 211 is pre-fixed at the bottom of the support frame 2. After the ball head 335 is placed in the ball socket groove 213, the other seat body 211 is connected to the seat body 211 fixed at the bottom of the support frame 2. The ball head 335 can swing arbitrarily in the ball socket groove 213 so as to tilt the support frame 2 and the photovoltaic panel 1.

[0090] When the driving motor 331 drives the vertical screw rod 332 to rotate forward, the vertical screw rod 332 acts on the internal thread in the internal thread hole 3331 of the pipe column to push the lifting pipe column 333 to extend upward, thereby lifting a corner of the photovoltaic panel 1 through the ball head 335.

[0091] When the driving motor 331 drives the vertical screw 332 to rotate in the opposite direction, the vertical screw 332 acts on the internal thread in the internal thread hole 3331 of the column to pull the lifting column 333 downward, and the lifting column 333 retracts and resets, thereby lowering a corner of the photovoltaic panel 1 through the ball head 335.

[0092] In one embodiment, if Figure 10-11 and Fig.15As shown, a transverse telescopic driving mechanism 45 is connected between the two connected transverse connecting pipes 43 , and the transverse telescopic driving mechanism 45 is connected to the platform control system 201 by signal.

[0093] When the transverse telescopic driving mechanism 45 is in the initial state, the two transverse connecting pipes 43 are in contact with each other.

[0094] When the transverse telescopic driving mechanism 45 is in the extended state, the two transverse connecting pipes 43 are separated.

[0095] In this embodiment, along the lateral direction, a lateral telescopic driving mechanism 45 is connected between two lateral connecting tubes 43 connected in two adjacent photovoltaic platform units 100 to drive the two lateral connecting tubes 43 to dock or separate, thereby adjusting the lateral distance between the two photovoltaic platform units 100 in the lateral direction.

[0096] The transverse telescopic drive mechanism 45 can be a piston drive mechanism or a motor drive mechanism. Each set of transverse telescopic drive mechanisms 45 is connected to the platform control system 201 through a wire to achieve signal transmission. The platform control system 201 can control each set of transverse telescopic drive mechanisms 45 to move independently. The transverse telescopic drive mechanism 45 can be connected to a battery through a wire and powered by the battery.

[0097] When the transverse telescopic drive mechanism 45 is in the initial state, the transverse telescopic drive mechanism 45 is contracted, the two transverse connecting tubes 43 are in contact, and the transverse distance between the two photovoltaic platform units 100 is minimized. When the transverse telescopic drive mechanism 45 is in the extended state, the two transverse connecting tubes 43 are driven to separate, and the transverse distance between the two photovoltaic platform units 100 increases.

[0098] The platform control system 201 can control all the lateral telescopic drive mechanisms 45 to move synchronously to maintain the stability of the offshore photovoltaic platform 200 .

[0099] When the sea waves are small, the lateral distance between the two photovoltaic platform units 100 can be increased by the lateral telescopic drive mechanism 45, so that the air circulation is good, the photovoltaic panels 1 are fully exposed to the sun, and the lateral mutual influence of adjacent photovoltaic panels 1 is reduced. When the sea waves are strong, the lateral distance between the two photovoltaic platform units 100 is reduced to maintain the lateral structural stability of the offshore photovoltaic platform 200 and improve the wind and wave resistance.

[0100] When the photovoltaic panels 1 are tilted, in the horizontal direction, of the two adjacent photovoltaic panels 1, the front photovoltaic panel 1 will block a portion of the rear photovoltaic panel 1, and the rear photovoltaic panel 1 cannot be completely exposed to sunlight. By increasing the horizontal distance between the two photovoltaic platform units 100 through the horizontal telescopic drive mechanism 45, it is also possible to prevent the next / rear photovoltaic panel 1 from being blocked by the previous / front photovoltaic panel 1, ensuring that the effective area of ​​each photovoltaic panel 1 can be exposed to sunlight, further improving the power generation capacity.

[0101] In one embodiment, if Figure 10-11 and Fig.15 As shown, the transverse telescopic driving mechanism 45 includes a first fixed sleeve 451 fixedly installed in a transverse connecting tube 43, a first sliding sleeve 452 fixedly installed in another transverse connecting tube 43, a first motor 453 installed in the first fixed sleeve 451 and a first screw 454 drivingly connected to the motor shaft of the first motor 453.

[0102] One end of the first sliding sleeve 452 is slidably connected to the first fixing sleeve 451 . The first sliding sleeve 452 has a first internal threaded hole 4521 . One end of the first screw rod 454 is connected to the first internal threaded hole 4521 .

[0103] First sealing rings 46 are respectively installed between the pipe openings of the two transverse connecting pipes 43 and the first sliding sleeve 452 .

[0104] The first motor 453 is connected to the platform control system 201 for signals.

[0105] In this embodiment, the lateral telescopic driving mechanism 45 adopts a motor screw driving mechanism, and the telescopic driving is precise.

[0106] The transverse telescopic driving mechanism 45 includes a first fixed sleeve 451 , a first sliding sleeve 452 , a first motor 453 and a first screw rod 454 .

[0107] The first fixed sleeve 451 is fixedly installed in one transverse connecting tube 43, and the first sliding sleeve 452 is fixedly connected to the other transverse connecting tube 43. The radius of the first sliding sleeve 452 is smaller than the radius of the first fixed sleeve 451, and one end of the first sliding sleeve 452 extends into the first fixed sleeve 451, and the first sliding sleeve 452 can slide telescopically relative to the first fixed sleeve 451. The pipe openings of the two transverse connecting tubes 43 are respectively installed with first sealing rings 46 to seal with the first sliding sleeve 452.

[0108] The first motor 453 is fixedly installed in the first fixed sleeve 451. The first sliding sleeve 452 has a first internal threaded hole 4521. One end of the first screw rod 454 is directly connected to the motor shaft of the first motor 453 or connected through a reduction mechanism. The other end of the first screw rod 454 is connected to the first internal threaded hole 4521.

[0109] The first motor 453 can be a stepper motor or a servo motor, which can rotate forward and backward. The first motor 453 is connected to the platform control system 201 through a wire to achieve signal transmission. The platform control system 201 can control each first motor 453 to operate separately, or control all first motors 453 to operate synchronously. The first motor 453 can be connected to a battery through a wire, and the battery supplies power to the first motor 453.

[0110] When the first motor 453 drives the first screw rod 454 to rotate in the forward direction, the first screw rod 454 acts on the internal thread in the first internal thread hole 4521 to pull the first sliding sleeve 452 so that the two transverse connecting pipes 43 are close to each other.

[0111] When the first motor 453 drives the first screw rod 454 to rotate in the opposite direction, the first screw rod 454 acts on the internal thread in the first internal thread hole 4521 to push the first sliding sleeve 452 , so that the two transverse connecting pipes 43 are separated.

[0112] In one embodiment, if Figure 14-15 As shown, the photovoltaic panel 1 is rectangular.

[0113] The photovoltaic panel 1 is respectively provided with first light sensors 7 along two longitudinally extending side edges.

[0114] The first light sensor 7 is connected to the platform control system 201 by signal.

[0115] When the photovoltaic panel 1 is in a tilted state, if the difference in light intensity values ​​of the two first light sensors 7 is within a first preset range, the lateral telescopic driving mechanism 45 is in a stopped state; if the difference in light intensity values ​​of the two first light sensors 7 exceeds the first preset range, the lateral telescopic driving mechanism 45 is turned on to increase the lateral distance between the two photovoltaic platform units 100 until the difference in light intensity values ​​of the two first light sensors 7 is within the first preset range.

[0116] In this embodiment, first light sensors 7 are respectively installed in the middle of two longitudinally extending sides of the photovoltaic panel 1. The first light sensors 7 are used to detect light intensity. The first light sensors 7 are connected to the platform control system through wires to achieve signal transmission.

[0117] The two first light sensors 7 are used to detect the light intensity of the two side areas extending along the longitudinal direction of the photovoltaic panel 1. If the light intensity of the two side areas is within the first preset range, it means that the lateral distance between the two photovoltaic platform units 100 meets the requirements, and the two side areas extending along the longitudinal direction of the photovoltaic panel 1 are illuminated by light.

[0118] If the difference in the light intensity of the two sides exceeds the first preset range, it means that the lateral distance between the two photovoltaic platform units 100 does not meet the requirement, and the photovoltaic panel 1 is not irradiated by light along a side extending in the longitudinal direction. Generally speaking, the side where the first light sensor 7 with low light intensity is located is not irradiated by light, and the lateral distance between the two photovoltaic platform units 100 needs to be increased by the lateral telescopic drive mechanism 45 so that the two sides of the photovoltaic panel 1 extending in the longitudinal direction are irradiated by sunlight.

[0119] The first preset range can be set as needed. Generally speaking, in summer, under direct sunlight, the light intensity can reach 60,000 to 100,000 lx. The first preset range can be selected as 2±10,000 lx. If the difference between the two first light sensors 7 is within 10,000-30,000 lx, it means that the lateral distance between the two photovoltaic platform units 100 meets the requirements. If the difference between the two first light sensors 7 is less than 10,000 lx or greater than 30,000 lx, it means that the lateral distance between the two photovoltaic platform units 100 does not meet the requirements. Other seasons can be set according to actual conditions.

[0120] In one embodiment, if Figure 12-13 and Fig.15 As shown, a longitudinal telescopic drive mechanism 47 is connected between the two connected longitudinal connecting pipes 44 , and the longitudinal telescopic drive mechanism 47 is connected to the platform control system 201 by signal.

[0121] When the longitudinal telescopic driving mechanism 47 is in the initial state, the two longitudinal connecting tubes 44 are in contact with each other.

[0122] When the longitudinal telescopic driving mechanism 47 is in the extended state, the two longitudinal connecting tubes 44 are separated.

[0123] In this embodiment, along the longitudinal direction, a longitudinal telescopic driving mechanism 47 is connected between the two longitudinal connecting tubes 44 connected in two adjacent photovoltaic platform units 100 to drive the two longitudinal connecting tubes 44 to dock or separate, thereby adjusting the longitudinal distance between the two photovoltaic platform units 100 in the longitudinal direction.

[0124] The longitudinal telescopic drive mechanism 47 can be a piston drive mechanism or a motor drive mechanism. Each set of longitudinal telescopic drive mechanisms 47 is connected to the platform control system 201 through a wire to achieve signal transmission. The platform control system 201 can control each set of longitudinal telescopic drive mechanisms 47 to move independently. The longitudinal telescopic drive mechanism 47 can be connected to a battery through a wire and powered by the battery.

[0125] When the longitudinal telescopic drive mechanism 47 is in the initial state, the longitudinal telescopic drive mechanism 47 is contracted, the two longitudinal connecting tubes 44 are in contact, and the longitudinal distance between the two photovoltaic platform units 100 is minimized. When the longitudinal telescopic drive mechanism 47 is in the extended state, the two longitudinal connecting tubes 44 are driven to separate, and the longitudinal distance between the two photovoltaic platform units 100 increases.

[0126] The platform control system 201 can control all longitudinal telescopic drive mechanisms 47 to move synchronously to maintain the stability of the offshore photovoltaic platform 200.

[0127] When the sea waves are small, the longitudinal distance between the two photovoltaic platform units 100 can be increased by the longitudinal telescopic drive mechanism 47, so that the air circulation is good, the photovoltaic panels 1 are fully exposed to the sun, and the longitudinal mutual influence between adjacent photovoltaic panels 1 is reduced. When the sea waves are strong, the longitudinal distance between the two photovoltaic platform units 100 is reduced to maintain the structural stability of the offshore photovoltaic platform 200 in the longitudinal direction and improve the wind and wave resistance.

[0128] When the photovoltaic panels 1 are tilted, in the longitudinal direction, of the two adjacent photovoltaic panels 1, the front photovoltaic panel 1 will block a portion of the rear photovoltaic panel 1, and the rear photovoltaic panel 1 cannot be completely exposed to sunlight. By increasing the longitudinal distance between the two photovoltaic platform units 100 through the longitudinal telescopic drive mechanism 47, it is also possible to prevent the next / rear photovoltaic panel 1 from being blocked by the upper / previous photovoltaic panel 1, ensuring that the effective area of ​​each photovoltaic panel 1 can be exposed to sunlight, further improving the power generation capacity.

[0129] In one embodiment, if Figure 12-13 and Fig.15 As shown, the longitudinal telescopic drive mechanism 47 includes a second fixed sleeve 471 fixedly installed in a longitudinal connecting tube 44, a second sliding sleeve 472 fixedly installed in another longitudinal connecting tube 44, a second motor 473 installed in the second fixed sleeve 471 and a second screw 474 drivingly connected to the motor shaft of the second motor 473.

[0130] One end of the second sliding sleeve 472 is slidably connected to the second fixing sleeve 471 . The second sliding sleeve 472 has a second internal threaded hole 4721 . One end of the second screw rod 474 is connected to the second internal threaded hole 4721 .

[0131] Second sealing rings 48 are respectively installed between the pipe openings of the two longitudinal connecting pipes 44 and the second sliding sleeve 472 .

[0132] The second motor 473 is connected to the platform control system 201 for signal communication.

[0133] In this embodiment, the longitudinal telescopic drive mechanism 47 adopts a motor screw drive mechanism, and the telescopic drive is precise.

[0134] The longitudinal telescopic driving mechanism 47 includes a second fixing sleeve 471 , a second sliding sleeve 472 , a second motor 473 and a second screw rod 474 .

[0135] The second fixed sleeve 471 is fixedly installed in one longitudinal connecting tube 44, and the second sliding sleeve 472 is fixedly connected to the other longitudinal connecting tube 44. The radius of the second sliding sleeve 472 is smaller than the radius of the second fixed sleeve 471, and one end of the second sliding sleeve 472 extends into the second fixed sleeve 471, and the second sliding sleeve 472 can slide telescopically relative to the second fixed sleeve 471. The pipe openings of the two longitudinal connecting tubes 44 are respectively installed with second sealing rings 48 to seal with the second sliding sleeve 472.

[0136] The second motor 473 is fixedly installed in the second fixed sleeve 471. The second sliding sleeve 472 has a second internal threaded hole 4721. One end of the second screw rod 474 is directly connected to the motor shaft of the second motor 473 or connected through a reduction mechanism. The other end of the second screw rod 474 is connected to the second internal threaded hole 4721.

[0137] The second motor 473 can be a stepper motor or a servo motor, which can rotate forward and backward. The second motor 473 is connected to the platform control system 201 through a wire to achieve signal transmission. The platform control system 201 can control each second motor 473 to operate separately, or control all second motors 473 to operate synchronously. The second motor 473 can be connected to a battery through a wire, and the battery supplies power to the second motor 473.

[0138] When the second motor 473 drives the second screw rod 474 to rotate in the forward direction, the second screw rod 474 acts on the internal thread in the second internal thread hole 4721 to pull the second sliding sleeve 472 so that the two longitudinal connecting tubes 44 are close to each other.

[0139] When the second motor 473 drives the second screw rod 474 to rotate in the opposite direction, the second screw rod 474 acts on the internal thread in the second internal thread hole 4721 to push the second sliding sleeve 472 , so that the two longitudinal connecting tubes 44 are separated.

[0140] In one embodiment, if Figure 14-15 As shown, the photovoltaic panel 1 is rectangular.

[0141] The second light sensors 8 are respectively installed along two side edges extending laterally of the photovoltaic panel 1 .

[0142] The second light sensor 8 is connected to the platform control system 201 by signal.

[0143] When the photovoltaic panel 1 is in a tilted state, if the difference in light intensity values ​​of the two second light sensors 8 is within the second preset range, the longitudinal telescopic drive mechanism 47 is in a stopped state; if the difference in light intensity values ​​of the two second light sensors 8 exceeds the second preset range, the longitudinal telescopic drive mechanism 47 is turned on to increase the longitudinal distance between the two photovoltaic platform units 100 until the difference in light intensity values ​​of the two second light sensors 8 is within the second preset range.

[0144] In this embodiment, second light sensors 8 are respectively installed in the middle of two longitudinally extending sides of the photovoltaic panel 1. The second light sensors 8 are used to detect light intensity. The second light sensors 8 are connected to the platform control system through wires to achieve signal transmission.

[0145] The two second light sensors 8 are used to detect the light intensity of the two side areas extending along the longitudinal direction of the photovoltaic panel 1. If the light intensity of the two side areas is within the second preset range, it means that the longitudinal distance between the two photovoltaic platform units 100 meets the requirements, and the two side areas extending along the longitudinal direction of the photovoltaic panel 1 are illuminated by light.

[0146] If the difference in the illumination intensity of the two sides exceeds the second preset range, it means that the longitudinal distance between the two photovoltaic platform units 100 does not meet the requirement, and the photovoltaic panel 1 is not illuminated by light along one side extending in the longitudinal direction. Generally speaking, the side where the second illumination sensor 8 with low illumination intensity is located is not illuminated by light, and the longitudinal distance between the two photovoltaic platform units 100 needs to be increased by the longitudinal telescopic drive mechanism 47 so that both sides of the photovoltaic panel 1 extending in the longitudinal direction are illuminated by sunlight.

[0147] The second preset range can be set as needed. Generally speaking, in summer, under direct sunlight, the light intensity can reach 60,000 to 100,000 lx. The second preset range can be selected as 2±10,000 lx. If the difference between the two second light sensors 8 is within 10,000-30,000 lx, it means that the longitudinal distance between the two photovoltaic platform units 100 meets the requirements. If the difference between the two second light sensors 8 is less than 10,000 lx or greater than 30,000 lx, it means that the longitudinal distance between the two photovoltaic platform units 100 does not meet the requirements. Other seasons can be set according to actual conditions.

[0148] The above-mentioned lateral adjustment scheme and longitudinal adjustment scheme can be used in combination to ensure that each photovoltaic panel 1 is exposed to sunlight.

[0149] In one embodiment, if Figure 4-5 As shown, the base 4 includes four base modules 41 arranged at intervals, and two adjacent base modules 41 are connected by a connecting rod 42 .

[0150] The lower end of each supporting riser 31 is connected to a base module 41 , and the lower end of the floating pipe 32 is connected to the base module 41 .

[0151] In this embodiment, the base 4 is divided into four base modules 41 , and adjacent base modules 41 are connected by connecting rods 42 , thereby reducing the area of ​​the base 4 and facilitating assembly of the base modules 41 with the support risers 31 and the floating pipes 32 .

[0152] In one embodiment, if Figure 1-4 As shown, a rectangular heave plate 5 is hung below each photovoltaic platform unit 100 , and the four corners of the heave plate 5 are connected to the four base modules 41 via suspension chains 6 , respectively.

[0153] In this embodiment, the heave plate 5 is configured to lower the center of gravity of the photovoltaic platform unit 100, slow down the drift speed of the photovoltaic platform unit 100, and improve the wind and wave resistance.

[0154] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0155] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. An offshore photovoltaic platform, characterized in that: It includes a plurality of photovoltaic platform units arranged in a matrix and a platform control system; The photovoltaic platform unit includes a photovoltaic panel, a support frame connected to the bottom of the photovoltaic panel, four sets of rectangularly arranged supporting floating tube structures connected below the support frame, and a base connected below the four sets of supporting floating tube structures; The supporting floating pipe structure comprises a vertically extending supporting riser, a floating pipe sleeved on the supporting riser, and a lifting drive mechanism installed in the supporting riser; The telescopic end of each set of the lifting drive mechanism extends above the supporting riser and is hinged to the supporting frame; The base is rectangular, and the lower end of each of the support risers is connected to the base; The four corners of the base are respectively connected with a transverse connecting pipe and a longitudinal connecting pipe; In two adjacent photovoltaic platform units, the two transverse connecting tubes extending toward each other are connected, and the two longitudinal connecting tubes extending toward each other are connected; Each set of the lifting drive mechanisms is respectively connected to the platform control system signal.

2. The offshore photovoltaic platform according to claim 1, characterized in that: The lifting drive mechanism includes a driving motor installed in the supporting vertical tube, a vertical screw rod drivingly connected to the rotating shaft of the driving motor, a lifting column slidably assembled in the supporting vertical tube, and a ball head connected to the upper end of the lifting column; The lifting column has a column internal threaded hole opening downward, and the upper end of the vertical screw is connected to the column internal threaded hole; A ball joint seat is installed at the bottom of the support frame corresponding to the position of each ball head; The ball head is movably assembled in the ball socket groove of the ball joint seat; The drive motor is connected to the platform control system by signal.

3. The offshore photovoltaic platform according to claim 1, characterized in that: A transverse telescopic drive mechanism is connected between the two connected transverse connecting pipes, and the transverse telescopic drive mechanism is connected to the platform control system signal; When the transverse telescopic driving mechanism is in an initial state, the two transverse connecting pipes are in contact with each other; When the transverse telescopic driving mechanism is in an extended state, the two transverse connecting pipes are separated.

4. The offshore photovoltaic platform according to claim 3, characterized in that: The transverse telescopic driving mechanism comprises a first fixed sleeve fixedly installed in one of the transverse connecting tubes, a first sliding sleeve fixedly installed in the other transverse connecting tube, a first motor installed in the first fixed sleeve, and a first screw drivingly connected to the motor shaft of the first motor; One end of the first sliding sleeve is slidably connected to the first fixed sleeve, the first sliding sleeve has a first internal threaded hole, and one end of the first screw rod is connected to the first internal threaded hole; A first sealing ring is respectively installed between the pipe openings of the two transverse connecting pipes and the first sliding sleeve; The first motor is connected to the platform control system signal.

5. The offshore photovoltaic platform according to claim 3 or 4, characterized in that: The photovoltaic panel is rectangular; The photovoltaic panel is respectively provided with first light sensors along two longitudinally extending side edges; The first light sensor is connected to the platform control system signal.

6. The offshore photovoltaic platform according to claim 1, characterized in that: A longitudinal telescopic drive mechanism is connected between the two connected longitudinal connecting pipes, and the longitudinal telescopic drive mechanism is connected to the platform control system signal; When the longitudinal telescopic drive mechanism is in an initial state, the two longitudinal connecting tubes are in contact with each other; When the longitudinal telescopic driving mechanism is in an extended state, the two longitudinal connecting tubes are separated.

7. The offshore photovoltaic platform according to claim 6, characterized in that: The longitudinal telescopic drive mechanism comprises a second fixed sleeve fixedly installed in one of the longitudinal connecting tubes, a second sliding sleeve fixedly installed in the other longitudinal connecting tube, a second motor installed in the second fixed sleeve, and a second screw drivingly connected to the motor shaft of the second motor; One end of the second sliding sleeve is slidably connected to the second fixed sleeve, the second sliding sleeve has a second internal threaded hole, and one end of the second screw rod is connected to the second internal threaded hole; A second sealing ring is respectively installed between the pipe openings of the two longitudinal connecting pipes and the second sliding sleeve; The second motor is connected to the platform control system signal.

8. The offshore photovoltaic platform according to claim 6 or 7, characterized in that: The photovoltaic panel is rectangular; The photovoltaic panel is respectively provided with a second light sensor along two side edges extending laterally; The second light sensor is connected to the platform control system signal.

9. The offshore photovoltaic platform according to claim 1, characterized in that: The base comprises four base modules arranged at intervals, and two adjacent base modules are connected by a connecting rod; The lower end of each of the supporting risers is connected to one of the base modules, and the lower end of the floating pipe is connected to the base module.

10. The offshore photovoltaic platform according to claim 9, characterized in that: A rectangular heave plate is hung below each photovoltaic platform unit, and the four corners of the heave plate are connected to the four base modules respectively through hanging chains.

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