Offshore power generation platform

Abstract

The invention discloses an offshore power generation platform which comprises a stand column, a wind driven generator and a gravity center adjusting and wave energy conversion integrated device. A gravity center adjusting and wave energy converting integrated device is arranged between every two adjacent stand columns. The integrated device comprises a shell, a wave energy conversion device and a gravity center adjusting device. The shell comprises a first mounting cavity and a second mounting cavity which extend in the first direction. Wherein the wave energy conversion device is arranged in the first mounting cavity and comprises a coil and a magnetic part, the coil is constructed to be in a spiral shape extending in the first direction and defines an electromagnetic channel, and the magnetic part is arranged in the electromagnetic channel to move; the gravity center adjusting device is arranged in the second mounting cavity and comprises a balancing weight and a telescopic assembly, and the telescopic assembly is used for driving the balancing weight to move in the second mounting cavity. In the application, the floating platform depending on the wind driven generator, the integrated device and the wind driven generator share mooring, operation and maintenance, and the cost is greatly reduced.

Description

Technical Field

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

[0002] As the global demand for renewable energy increases, floating offshore wind power technology has attracted attention due to its ability to develop wind energy resources in deep sea areas.

[0003] Among the related technologies, floating offshore wind power technology needs to be combined with anti-capsize technology to adapt to the complex environment of the sea surface; at the same time, wave energy, as a rich marine energy, its conversion technology is also constantly developing.

[0004] However, floating offshore wind power technology, wave energy conversion technology and anti-capsulation technology are difficult to combine organically, and more space is required for the construction of each module, resulting in low space utilization and duplicate construction. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an offshore power generation platform that can improve space utilization and reduce duplicate construction and resource waste.

[0006] The present invention provides an offshore power generation platform, comprising a column, a wind turbine and an integrated device for center of gravity adjustment and wave energy conversion. The columns include three columns arranged in an equilateral triangle; the wind turbine is arranged at the center of the equilateral triangle formed by the columns; a center of gravity adjustment and wave energy conversion integrated device is arranged between two adjacent columns; the center of gravity adjustment and wave energy conversion integrated device includes a shell, a wave energy conversion device and a center of gravity adjustment device; the shell includes a first half shell and a second half shell arranged between two adjacent columns, the first half shell has a first installation cavity, the second half shell has a second installation cavity, and the first installation cavity and the second installation cavity are both extended along a first direction; wherein the wave energy conversion device is arranged in the first installation cavity and includes a coil and a magnetic part, the coil is constructed in a spiral shape extending along the first direction and encloses an electromagnetic channel, and the magnetic part is arranged in the electromagnetic channel for movement; the center of gravity adjustment device is arranged in the second installation cavity and includes a counterweight block and a telescopic assembly, and the telescopic assembly is used to drive the counterweight block to move in the second installation cavity; the first direction is parallel to the arrangement direction of the two adjacent columns.

[0007] In some embodiments, the telescopic assembly includes at least two telescopic assemblies symmetrically arranged on both sides of the counterweight block in the first direction.

[0008] In some embodiments, each of the telescopic components includes a rigid unit and a drive motor; the rigid units include multiple ones, two adjacent rigid units are connected by a rotating shaft, and the drive motor is used to drive the rotating shaft to rotate to adjust the angle between two adjacent rigid units.

[0009] In some embodiments, the rigid unit is constructed as a long plate structure, and the ends of two adjacent rigid units in the length direction are connected by the rotating shaft.

[0010] In some embodiments, the wave energy conversion device is electrically connected to the center of gravity adjustment device, so that the wave energy is used to power the center of gravity adjustment device.

[0011] In some embodiments, a slide rail extending along the first direction is disposed on the cavity wall of the second installation cavity, and a sliding member slidably matched with the slide rail is disposed at the bottom of the counterweight block.

[0012] In some embodiments, the wave energy conversion device further comprises a cylinder extending along the first direction; the coil is embedded in the side wall of the cylinder to form the electromagnetic channel.

[0013] In some embodiments, the wave energy conversion device also includes a return spring, one end of which is fixed to the end cover of the cylinder, and the other end is fixed to the magnetic member; the return spring is configured to apply an elastic force toward the middle of the cylinder to the magnetic member when deformed.

[0014] In some embodiments, the return spring includes multiple return springs; at least one return spring is connected between the magnetic member and one end cover of the cylinder, and at least one return spring is connected between the magnetic member and the other end cover of the cylinder.

[0015] In some embodiments, the offshore power generation platform further includes a buoy; the buoy is connected between the column and the shell.

[0016] It can be seen from the technical solution that the embodiments provided by the present invention have the following advantages: (1) In the related art, two adjacent columns are connected by connecting and fixing rods. In the present application, the shell in the integrated device for center of gravity adjustment and wave energy conversion can play the role of connecting and fixing the two columns, and can also enclose the installation cavity of the center of gravity adjustment device and the wave energy conversion device, thereby reducing duplicate construction, improving space utilization, and making the structure more compact.

[0017] (2) When waves hit offshore power generation platforms, the waves cause magnetic components to move in electromagnetic channels. The magnetic components cut magnetic inductance to generate electricity, thereby collecting wave energy and reducing the waste of resources.

[0018] (3) The center of gravity adjustment device adjusts the center of gravity of the offshore power generation platform by changing the position of the counterweight block, so that the center of gravity moves in the direction opposite to the capsizing direction, thereby improving the stability of the offshore power generation platform and facilitating the stability of the offshore power generation process.

[0019] (4) During the movement of the magnetic parts and the counterweight, the movement paths of the magnetic parts and the counterweight are located between the two columns. Relying on the floating platform of the wind turbine, the integrated device for center of gravity adjustment and wave energy conversion shares mooring and operation and maintenance with the wind turbine by connecting the two columns, which greatly reduces costs. It can also make full use of the space between the two columns to further improve space utilization and the compactness of the structure, thereby organically combining floating offshore wind power technology, wave energy conversion technology and anti-capsulation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 is a schematic structural diagram of an offshore power generation platform according to an embodiment of the present invention;

[0022] Figure 2 is a structural schematic diagram of a gravity center adjustment and wave energy conversion integrated device according to an embodiment of the present invention;

[0023] Figure 3 is a structural schematic diagram of a center of gravity adjustment device according to an embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the structure of a wave energy conversion device according to an embodiment of the present invention.

[0025] Reference numerals:

[0026] Offshore power generation platform 1000;

[0027] Column 100;

[0028] Wind turbine 200;

[0029] Integrated device for center of gravity adjustment and wave energy conversion 300;

[0030] Shell 1, first half shell 11, first installation cavity 111, second half shell 12, second installation cavity 121, slide rail 122, partition 13;

[0031] Wave energy conversion device 2, coil 21, magnetic member 22, cylinder 23, side wall 231, end cover 232, return spring 24, electromagnetic channel 25;

[0032] Center of gravity adjustment device 3, counterweight block 31, sliding member 311, telescopic assembly 32, rigid unit 321, driving motor 322, rotating shaft 323, high-power motor 324, high-voltage cable 325;

[0033] Float 4. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Reference below Figure 1-Figure 4 An offshore power generation platform 1000 according to an embodiment of the present invention is described.

[0038] Embodiment 1

[0039] like Figure 1As shown, this embodiment provides an offshore power generation platform 1000 , which includes a column 100 , a wind turbine 200 , and an integrated device 300 for center of gravity adjustment and wave energy conversion.

[0040] like Figure 1 As shown, there are three columns 100, and the three columns 100 are arranged in an equilateral triangle. Here, the columns 100 are arranged in an equilateral triangle, which means that the columns 100 are vertically arranged at the corner points of the equilateral triangle, and the three columns 100 are respectively located at the three vertices of the equilateral triangle.

[0041] like Figure 1 As shown, the wind turbine 200 is disposed at the center of the equilateral triangle formed by the columns 100 . The wind turbine 200 is a horizontal axis wind turbine for collecting wind energy.

[0042] A connecting member is provided between the column 100 and the tower of the wind turbine 200 .

[0043] like Figure 1 As shown, a gravity center adjustment and wave energy conversion integrated device 300 is provided between two adjacent columns 100. That is, the gravity center adjustment and wave energy conversion integrated device 300 includes three, one gravity center adjustment and wave energy conversion integrated device 300a is provided between one column 100a and another column 100b, another gravity center adjustment and wave energy conversion integrated device 300b is provided between one column 100a and another column 100c, and another gravity center adjustment and wave energy conversion integrated device 300c is provided between another column 100b and another column 100c.

[0044] like Figure 2 As shown, the integrated device 300 for center of gravity adjustment and wave energy conversion includes a shell 1, a wave energy conversion device 2 and a center of gravity adjustment device 3. The shell 1 includes a first half shell 11 and a second half shell 12, the first half shell 11 is arranged between two adjacent columns 100, and the second half shell 12 is arranged between two adjacent columns 100. The first half shell 11 has a first installation cavity 111, and the second half shell 12 has a second installation cavity 121, the first installation cavity 111 is extended along a first direction, and the second installation cavity 121 is extended along the first direction, and the first direction is parallel to the arrangement direction of the two adjacent columns 100.

[0045] like Figure 1As shown, the extension direction of the first installation cavity 111 and the second installation cavity 121 of one integrated device for center of gravity adjustment and wave energy conversion 300a is parallel to the arrangement direction of one column 100a and another column 100b; the extension direction of the first installation cavity and the second installation cavity of another integrated device for center of gravity adjustment and wave energy conversion 300b is parallel to the arrangement direction of one column 100a and another column 100c, and the extension direction of the first installation cavity 111 and the second installation cavity 121 of another integrated device for center of gravity adjustment and wave energy conversion 300c is parallel to the arrangement direction of another column 100b and another column 100c.

[0046] like Figure 2 As shown, the wave energy conversion device 2 is arranged in the first installation cavity 111, and the wave energy conversion device 2 includes a coil 21 and a magnetic member 22. The coil 21 is configured as a spiral extending along the first direction, and the coil 21 surrounds an electromagnetic channel 25. The magnetic member 22 is movably arranged in the electromagnetic channel 25. The center of gravity adjustment device 3 is arranged in the second installation cavity 121, and the center of gravity adjustment device 3 includes a counterweight block 31 and a telescopic assembly 32. The telescopic assembly 32 is used to drive the counterweight block 31 to move in the second installation cavity 121.

[0047] like Figure 1 As shown, it should be noted that the housing 1 here can be constructed as a cylindrical structure, and the axis of the cylinder is horizontally placed between two adjacent columns 100. The housing 1 includes a first half shell 11 and a second half shell 12, the first half shell 11 is arranged between two adjacent columns 100, and the second half shell 12 is arranged between two adjacent columns 100, and the cross-sections of the first half shell 11 and the second half shell 12 are both semicircular cross-sections with the axis of the cylinder as the center.

[0048] The offshore power generation device provided in this embodiment has the following advantages:

[0049] 1. In the related art, two adjacent columns are connected by connecting and fixing rods, and the connecting and fixing rods only play a connecting role. In the present application, the shell 1 in the integrated device for center of gravity adjustment and wave energy conversion 300 can play the role of connecting and fixing the two columns 100, and can also enclose the installation cavity of the center of gravity adjustment device and the wave energy conversion device, thereby reducing duplicate construction, improving space utilization, and making the structure more compact.

[0050] 2. When waves hit the offshore power generation platform 1000, the waves cause the magnetic member 22 to move in the electromagnetic channel 25. The magnetic member 22 cuts the magnetic inductance to generate electricity, thereby collecting wave energy and reducing waste of resources.

[0051] 3. The center of gravity adjusting device 3 adjusts the center of gravity of the offshore power generation platform 1000 by changing the position of the counterweight block 31, so that the center of gravity moves in the direction opposite to the capsizing direction, thereby improving the stability of the offshore power generation platform 1000 and facilitating the stability of the offshore power generation process.

[0052] 4. During the movement of the magnetic member 22 and the counterweight 31, the movement paths of the magnetic member 22 and the counterweight 31 are located between the two columns 100. Relying on the floating platform of the wind turbine 200, the integrated device 300 for center of gravity adjustment and wave energy conversion shares mooring and operation and maintenance with the wind turbine 200 by connecting the two columns 100, which greatly reduces the cost. The space between the two columns 100 can also be fully utilized to further improve the space utilization rate and the compactness of the structure, thereby organically combining the floating offshore wind power technology, wave energy conversion technology and anti-capsulation technology.

[0053] like Figure 2 As shown, in a specific example, the first half shell 11 and the second half shell 12 are separated by a partition 13, so as to reduce the mutual interference between the wave energy conversion device 2 and the center of gravity adjustment device 3.

[0054] Furthermore, the wave energy conversion device 2 is electrically connected to the center of gravity adjustment device 3, so that the wave energy is used to supply power to the center of gravity adjustment device 3. By converting the wave energy into electrical energy and supplying the center of gravity adjustment device 3, local materials and recycling of energy are achieved. The wave energy that might have been wasted is effectively utilized, which improves the self-sufficiency of the energy utilization of the entire offshore power generation platform 1000 and improves the energy utilization efficiency as a whole.

[0055] Embodiment 2

[0056] like Figure 2 and Figure 3 As shown, further, the telescopic assembly 32 includes at least two, and at least two telescopic assemblies 32 are symmetrically arranged on both sides of the counterweight 31 in the first direction. The telescopic assembly 32 acts as a power component, and pushes or pulls the counterweight 31 by extending or shortening. Since at least two telescopic assemblies 32 are symmetrically arranged on both sides of the counterweight 31 in the first direction, when the telescopic assembly 32 on one side is extended and the other side is shortened, the counterweight 31 can be moved along the first direction in the second installation cavity 121. Such an arrangement can improve the moving efficiency of the counterweight 31, and improve the response speed and accuracy of the center of gravity adjustment of the offshore power generation platform 1000.

[0057] like Figure 2 and Figure 3As shown, further, each telescopic assembly 32 includes a rigid unit 321 and a driving motor 322, the rigid unit 321 includes a plurality of rigid units, two adjacent rigid units 321 are connected by a rotating shaft 323, and the driving motor 322 is used to drive the rotating shaft 323 to rotate to adjust the angle between the two adjacent rigid units 321. Specifically, the rigid unit 321 includes a plurality of connected units to form a foldable structure, one rigid unit 321 in the foldable structure is located at the head end, the rigid unit 321 at the head end is used to be rotatably connected to the cavity wall of the second installation cavity 121, and one rigid unit 321 in the foldable structure is located at the end, and the end is screwed to the counterweight 31. When the driving motor 322 drives the rotating shaft 323 to rotate to adjust the angle between the two adjacent rigid units 321, the end of the foldable structure moves relative to the head end of the foldable structure, thereby realizing the extension or shortening of the telescopic assembly 32. The structure composed of a plurality of rigid units 321 can effectively utilize space and achieve a compact layout while meeting the telescopic function. Compared with some traditional linear telescopic structures, this design can achieve a larger range of telescopic action within the limited second installation cavity 121, thereby improving space utilization.

[0058] like Figure 2 and Figure 3 As shown, further, the rigid unit 321 is constructed as a long plate structure, and the ends of two adjacent rigid units 321 in the length direction are connected by a rotating shaft 323. The size of the long plate structure in the length direction is greater than its size in the width and thickness directions. Multiple long plate-shaped rigid units 321 are connected in sequence by the rotating shaft 323. When the driving motor 322 drives the rotating shaft 323 to rotate and change the angle of the adjacent rigid units 321, a large linear displacement change can be achieved during the extension or contraction of the telescopic assembly 32, that is, the counterweight 31 can be driven to move over a long distance. The width and thickness of the long plate structure are relatively small, so that it can be laid out in a relatively compact manner in the limited second installation cavity 121. This design makes full use of the spatial shape of the installation cavity, reduces the space waste caused by the excessive size of the structure itself, and enables the telescopic assembly 32 to achieve a large range of telescopic in a limited space, and ensures the rationality of the overall structure, thereby improving the utilization rate of the internal space of the offshore power generation platform 1000.

[0059] like Figure 2 and Figure 3 As shown, in a specific example, the rigid telescopic plate is made of a stainless steel plate, the grade of the stainless steel plate is SUS630 / 17-4PH, the ultimate strength is 1310 MPa, the yield strength is 1180 MPa, and the fatigue strength is about 576 / MPa.

[0060] Compared with the folding connecting rod structure, the advantage of using multiple long plate structures to form a foldable telescopic structure is that the strength of the telescopic component 32 is improved, and the reliability of the center of gravity adjustment device 3 is improved.

[0061] In a specific application scenario, the drive motor 322 may be insufficiently powered. In this case, a large motor is disposed at the head end of the telescopic assembly 32 , and the large motor 324 and the drive motor 322 are connected via a high-voltage cable 324 to provide power to the drive motor 322 .

[0062] In a specific embodiment, the integrated device of the center of gravity adjustment and wave energy conversion system also includes a motion sensor, and the driving mechanism is configured to drive the counterweight block 31 to move when the motion sensor detects a displacement signal, so that the center of gravity of the offshore wind floating platform moves in the opposite direction of the capsizing of the offshore wind floating platform.

[0063] This embodiment also provides a coordinated control strategy for multiple drive motors 322:

[0064] Data collection: The motion sensor collects the attitude and center of gravity position data of the offshore power generation platform 1000 in real time.

[0065] Strategy calculation: The control unit transmits the collected data to the computer and adopts the PID (Proportional Integral Derivative) control algorithm to analyze the center of gravity adjustment strategy and determine the direction and distance the counterweight needs to move.

[0066] Control of the drive motor 322: The control unit allocates the rotation angle of each drive motor 322 according to the adjustment instruction, controls the speed and direction of each drive motor 322 through the PWM (Pulse Width Modulation) signal, and stops the operation of the drive motor 322 only after the coordinated drive counterweight is moved to the target position.

[0067] Feedback adjustment: The motion sensor continuously monitors the posture changes of the offshore power generation platform 1000, and the control unit fine-tunes the rotation angle of the drive motor 322 according to the feedback data to ensure that the offshore power generation platform 1000 remains stable.

[0068] Communication protocol: A controller area network is used to achieve efficient communication between the control unit and the drive motor 322 and the motion sensor.

[0069] Embodiment 3

[0070] like Figure 2As shown, further, a slide rail 122 extending along the first direction is provided on the cavity wall of the second installation cavity 121, and a sliding member 311 is provided at the bottom of the counterweight 31, and the sliding member 311 slides with the slide rail 122. The sliding member 311 here adopts a pulley. On the one hand, the telescopic component 32 has less resistance to overcome when pushing or pulling the counterweight 31, which means that the drive motor 322 of the telescopic component 32 consumes less energy when adjusting the position of the counterweight 31, which improves the energy utilization efficiency and helps to extend the operation time of the drive motor 322 and the entire center of gravity adjustment device 3; on the other hand, the slide rail 122 provides a clear and stable guide for the movement of the counterweight 31, and the pulley rolls on the slide rail 122, so that the counterweight 31 can only move along the first direction, reducing the offset or shaking during its movement, which is conducive to more accurate control of the position of the counterweight 31.

[0071] Embodiment 4

[0072] like Figure 4 As shown, further, the wave energy conversion device 2 further includes a cylinder 23 extending along the first direction, and the coil 21 is embedded in the side wall 231 of the cylinder 23 to form an electromagnetic channel 25. The cylinder 23 extending along the first direction provides a more stable support for the magnetic member 22 and guides the moving direction of the magnetic member 22.

[0073] In a specific example, the cross-sections of the magnetic member 22 and the cylinder 23 are both circular.

[0074] like Figure 4 As shown, further, the wave energy conversion device 2 also includes a reset spring 24, one end of which is fixed on the end cover 232 of the cylinder 23, and the other end is fixed on the magnetic member 22. The reset spring 24 is configured to apply an elastic force toward the middle of the cylinder 23 to the magnetic member 22 when deformed. The reset spring 24 enables the magnetic member 22 to reciprocate in the cylinder 23. When the waves push the magnetic member 22 to move in the electromagnetic channel 25, the spring is deformed. After the wave force weakens or disappears, the spring pulls the magnetic member 22 back by elastic force, increasing the number of times the magnetic member 22 cuts the magnetic flux lines. Compared with the magnetic member 22 moving only in one direction, the reciprocating motion significantly increases the frequency of electromagnetic induction, thereby generating more induced current and improving the efficiency of converting wave energy into electrical energy. At the same time, when the strong impact of the wave causes the magnetic member 22 to move quickly, the reset spring 24 acts as a buffer. The elastic deformation of the spring absorbs part of the impact force, preventing the magnetic member 22 from violently colliding with the inside of the cylinder 23 due to the instantaneous excessive impact force, thereby protecting the structural integrity of the magnetic member 22 and the cylinder 23 and extending the service life of the equipment. At the same time, the buffering effect also helps to stabilize the power generation process and avoid current fluctuations caused by the violent shaking of the magnetic member 22.

[0075] like Figure 4 As shown, further, the reset spring 24 includes multiple ones; at least one reset spring 24 is connected between the magnetic member 22 and one end cover 232 of the cylinder 23, and at least one reset spring 24 is connected between the magnetic member 22 and the other end cover 232 of the cylinder 23. The reset springs 24 on both sides are respectively connected between the magnetic member 22 and the two end covers 232 of the cylinder 23, so as to realize the bidirectional balanced reset of the magnetic member 22. When the waves push the magnetic member 22 to move in the direction of a certain end cover 232, the reset spring 24 at this end is stretched, while the reset spring 24 at the other end is compressed. When the wave force disappears, the reset springs 24 at both ends will work together to pull the magnetic member 22 back to the middle of the cylinder 23 in a more stable and balanced manner. Compared with only setting the reset spring 24 at one end, this bidirectional reset mechanism can more accurately control the position of the magnetic member 22, ensure that it can accurately return to the optimal power generation position every time, and improve the stability and power generation efficiency of the wave energy conversion device. At the same time, under the action of multiple return springs 24, the magnetic member 22 can make more round trips in the cylinder 23, which greatly increases the power generation opportunities and improves the efficiency of converting wave energy into electrical energy compared to a single return spring 24.

[0076] Embodiment 5

[0077] like Figure 2 As shown, further, the offshore power generation platform 1000 also includes a buoy 4, which is connected between the column 100 and the shell 1. Specifically, each center of gravity adjustment and wave energy conversion integrated device 300 includes two buoys 4, which are respectively arranged and connected to the two sides of the shell 1 in the first direction. The cross-sectional area and cross-sectional shape of the buoy 4 and the shell 1 are consistent, and the length of the buoy 4 is less than the length of the shell 1. When the offshore power generation platform 1000 encounters strong winds and waves, and the displacement of the offshore power generation platform 1000 is large but does not reach the overturning displacement, the buoy 4 can provide a certain buoyancy to reduce the displacement to reduce the possibility of overturning.

[0078] Other configurations and operations of the offshore power generation platform 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein. In the description of the present invention, "first feature" and "second feature" may include one or more of the features. The up-down direction, left-right direction and front-back direction are based on the up-down direction, left-right direction and front-back direction shown in the figure.

[0079] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An offshore power generation platform, characterized in that: include: The columns (100) include three columns (100) arranged in an equilateral triangle; A wind turbine (200), the wind turbine (200) being arranged at the center of an equilateral triangle formed by the upright columns (100); A gravity center adjustment and wave energy conversion integrated device (300) is provided between two adjacent columns (100); The integrated center of gravity adjustment and wave energy conversion device (300) comprises a shell (1), a wave energy conversion device (2) and a center of gravity adjustment device (3); The housing (1) comprises a first half shell (11) and a second half shell (12) arranged between two adjacent columns (100); the first half shell (11) has a first installation cavity (111) therein, the second half shell (12) has a second installation cavity (121) therein, and the first installation cavity (111) and the second installation cavity (121) are both extended along a first direction; The wave energy conversion device (2) is arranged in the first installation cavity (111) and comprises a coil (21) and a magnetic member (22); the coil (21) is constructed in a spiral shape extending along the first direction and enclosing an electromagnetic channel (25); and the magnetic member (22) is arranged in the electromagnetic channel (25) and moves; The center of gravity adjustment device (3) is arranged in the second installation cavity (121) and comprises a counterweight block (31) and a telescopic assembly (32), wherein the telescopic assembly (32) is used to drive the counterweight block (31) to move in the second installation cavity (121); The first direction is parallel to the arrangement direction of two adjacent columns (100).

2. The offshore power generation platform according to claim 1, characterized in that: The telescopic assembly (32) comprises at least two symmetrically arranged on both sides of the counterweight block (31) in the first direction.

3. The offshore power generation platform according to claim 2, characterized in that: Each of the telescopic components (32) comprises a rigid unit (321) and a drive motor (322); The rigid units (321) include a plurality of rigid units (321), two adjacent rigid units (321) are connected via a rotating shaft (323), and the driving motor (322) is used to drive the rotating shaft (323) to rotate so as to adjust the angle between the two adjacent rigid units (321).

4. The offshore power generation platform according to claim 3, characterized in that: The rigid unit (321) is constructed as a long plate structure, and the ends of two adjacent rigid units (321) in the length direction thereof are connected via the rotating shaft (323).

5. The offshore power generation platform according to claim 1, characterized in that: The wave energy conversion device (2) is electrically connected to the center of gravity adjustment device (3), so that the wave energy is used to supply power to the center of gravity adjustment device (3).

6. The offshore power generation platform according to claim 1, characterized in that: A slide rail (122) extending along the first direction is provided on the cavity wall of the second installation cavity (121), and a sliding member (311) slidably matched with the slide rail (122) is provided at the bottom of the counterweight block (31).

7. The offshore power generation platform according to claim 1, characterized in that: The wave energy conversion device (2) further comprises a cylinder (23) extending along the first direction; The coil (21) is embedded in the side circumferential wall (231) of the cylinder (23) to form the electromagnetic channel (25).

8. The offshore power generation platform according to claim 7, characterized in that: The wave energy conversion device (2) further comprises a return spring (24), one end of the return spring (24) being fixed to the end cover (232) of the cylinder (23), and the other end of the return spring (24) being fixed to the magnetic member (22); The return spring (24) is configured to apply an elastic force toward the middle of the cylinder (23) to the magnetic member (22) when deformed.

9. The offshore power generation platform according to claim 8, characterized in that: The return spring (24) comprises a plurality of; At least one of the return springs (24) is connected between the magnetic member (22) and one end cover (232) of the cylinder (23), and at least one of the return springs (24) is connected between the magnetic member (22) and another end cover (232) of the cylinder (23).

10. The offshore power generation platform according to claim 1, characterized in that: Also includes a float (4); The buoy (4) is connected between the column (100) and the housing (1).

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