Offshore power generation platform

Abstract

This invention discloses an offshore power generation platform, including columns, a wind turbine, and an integrated device for center of gravity adjustment and wave energy conversion. The integrated device is located between two adjacent columns. The integrated device includes a shell, a wave energy conversion device, and a center of gravity adjustment device. The shell includes a first mounting cavity and a second mounting cavity, both extending along a first direction. The wave energy conversion device, located in the first mounting cavity, includes a coil and a magnetic component. The coil is helical in shape extending along the first direction and enclosing an electromagnetic channel. The magnetic component moves within the electromagnetic channel. The center of gravity adjustment device, located in the second mounting cavity, includes a counterweight and a telescopic assembly. The telescopic assembly drives the counterweight to move within the second mounting cavity. In this application, relying on a floating platform with a wind turbine, the integrated device shares mooring and maintenance with the wind turbine, significantly reducing costs.

Description

Technical Field

[0001] This invention relates to the field of floating offshore wind power technology, and more particularly to offshore power generation platforms. Background Technology

[0002] With the increasing global demand for renewable energy, floating offshore wind power technology has attracted attention due to its advantage of being able to develop wind energy resources in deep-sea areas.

[0003] Among related technologies, floating offshore wind power technology needs to be combined with anti-overturning technology to adapt to the complex marine environment; at the same time, wave energy, as an abundant marine energy source, is also undergoing continuous development in its conversion technology.

[0004] However, floating offshore wind power technology, wave energy conversion technology, and anti-overturning technology are difficult to integrate organically, requiring more space for the construction of each module, resulting in low space utilization and redundant construction. Summary of the Invention

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

[0006] This invention provides an offshore power generation platform, including columns, a wind turbine, and an integrated device for center of gravity adjustment and wave energy conversion. The columns consist of three columns arranged in an equilateral triangle; the wind turbine is located at the center of the triangle formed by the columns; the integrated device for center of gravity adjustment and wave energy conversion is located between two adjacent columns; the integrated device for center of gravity adjustment and wave energy conversion 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 located between two adjacent columns, the first half-shell having a first mounting cavity, and the second half-shell having a second mounting cavity, both extending along a first direction; the wave energy conversion device, located in the first mounting cavity, includes a coil and a magnetic component, the coil being a spiral extending along the first direction and forming an electromagnetic channel, the magnetic component moving within the electromagnetic channel; the center of gravity adjustment device, located in the second mounting cavity, includes a counterweight and a telescopic assembly, the telescopic assembly driving the counterweight to move within the second mounting 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 symmetrically arranged on both sides of the counterweight in the first direction.

[0008] In some embodiments, each of the telescopic components includes a rigid unit and a drive motor; the rigid unit includes a plurality of rigid units, and 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 included 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 pivot.

[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, the cavity wall of the second mounting cavity is provided with a slide rail extending along the first direction, and the bottom of the counterweight is provided with a sliding member that slides in cooperation with the slide rail.

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

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

[0014] In some embodiments, the reset springs include a plurality of springs; at least one reset spring is connected between the magnetic element and one end cap of the cylinder, and at least one reset spring is connected between the magnetic element and the other end cap of the cylinder.

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

[0016] Based on the technical solutions, it can be seen that the embodiments provided by the present invention have the following advantages: (1) In the related technologies, two adjacent columns are connected by a connecting and fixing rod. In this 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, reducing redundant construction, improving space utilization, and making the structure more compact.

[0017] (2) When waves impact the offshore power generation platform, the waves cause the magnetic components to move in the electromagnetic channel. The magnetic components cut the magnetic induction 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, so that the center of gravity moves in the opposite direction to the overturning direction, thereby improving the stability of the offshore power generation platform and helping to maintain the stability of the offshore power generation process.

[0019] (4) During the movement of the aforementioned magnetic components and counterweights, the movement paths of the magnetic components and counterweights are all 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, further improving space utilization and structural compactness, thereby organically combining floating offshore wind power technology, wave energy conversion technology and anti-overturning technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

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

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

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

[0025] Figure label:

[0026] 1000 offshore power generation platform;

[0027] Column 100;

[0028] 200 wind turbine generators;

[0029] 300-type integrated device for center of gravity adjustment and wave energy conversion;

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

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

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

[0033] Float 4. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] The following is for reference. Figures 1-4 A description of an offshore power generation platform 1000 according to an embodiment of the present invention.

[0038] Example 1

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

[0040] like Figure 1 As shown, there are three pillars 100, which are arranged in an equilateral triangle. The arrangement of the pillars 100 in an equilateral triangle means that the pillars 100 are vertically positioned at the corners of the equilateral triangle, with the three pillars 100 located at the three vertices of the triangle.

[0041] like Figure 1 As shown, the wind turbine 200 is located at the center of the equilateral triangle formed by the column 100. The wind turbine 200 is a horizontal axis wind turbine used to collect wind energy.

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

[0043] like Figure 1 As shown, an integrated center of gravity adjustment and wave energy conversion device 300 is provided between two adjacent columns 100. That is to say, there are three integrated center of gravity adjustment and wave energy conversion devices 300: one integrated center of gravity adjustment and wave energy conversion device 300a is located between one column 100a and another column 100b, another integrated center of gravity adjustment and wave energy conversion device 300b is located between one column 100a and another column 100c, and another integrated center of gravity adjustment and wave energy conversion device 300c is located between another column 100b and another column 100c.

[0044] like Figure 2 As shown, the integrated center of gravity adjustment and wave energy conversion device 300 includes a housing 1, a wave energy conversion device 2, and a center of gravity adjustment device 3. The housing 1 includes a first half-shell 11 and a second half-shell 12. The first half-shell 11 is disposed between two adjacent columns 100, and the second half-shell 12 is disposed between two adjacent columns 100. The first half-shell 11 has a first mounting cavity 111, and the second half-shell 12 has a second mounting cavity 121. The first mounting cavity 111 extends along a first direction, and the second mounting cavities 121 also extend along the first direction, which is parallel to the arrangement direction of the two adjacent columns 100.

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

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

[0047] like Figure 1 As shown, it should be noted that the shell 1 here can be constructed as a cylindrical structure, with the axis of the cylinder transversely positioned between two adjacent columns 100. The shell 1 includes a first half-shell 11 and a second half-shell 12. The first half-shell 11 is located between two adjacent columns 100, and the second half-shell 12 is located between two adjacent columns 100. The cross-sections of the first half-shell 11 and the second half-shell 12 are both semi-circular 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 related technologies, two adjacent columns are connected by a connecting rod, which only serves a connecting function. In this application, the shell 1 of the integrated center of gravity adjustment and wave energy conversion device 300 can connect and fix the two columns 100, and can also enclose the installation cavity of the center of gravity adjustment device and the wave energy conversion device, reducing redundant construction, improving space utilization, and making the structure more compact.

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

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

[0052] 4. During the movement of the aforementioned magnetic component 22 and counterweight 31, their movement paths are all located between the two columns 100. Relying on the floating platform of the wind turbine 200, the integrated center of gravity adjustment and wave energy conversion device 300, by connecting the two columns 100, shares mooring and maintenance with the wind turbine 200, greatly reducing costs. It can also fully utilize the space between the two columns 100, further improving space utilization and structural compactness, thus organically combining 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, thereby reducing 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 wave energy can be used to power the center of gravity adjustment device 3. By converting wave energy into electrical energy and supplying it to the center of gravity adjustment device 3, on-site energy sourcing and recycling are achieved. Wave energy that might otherwise have been wasted is effectively utilized, improving the self-sufficiency of energy utilization for the entire offshore power generation platform 1000 and enhancing overall energy utilization efficiency.

[0055] Example 2

[0056] like Figure 2 and Figure 3 As shown, the telescopic assembly 32 further includes at least two components, which are symmetrically arranged on both sides of the counterweight 31 in the first direction. The telescopic assembly 32 acts as a power component, extending or retracting to push or pull the counterweight 31. Since at least two telescopic assemblies 32 are symmetrically arranged on both sides of the counterweight 31 in the first direction, when one side of the telescopic assembly 32 extends and the other side retracts, the counterweight 31 can move within the second mounting cavity 121 along the first direction. This arrangement improves the moving efficiency of the counterweight 31 and enhances 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, each telescopic component 32 further includes a rigid unit 321 and a drive motor 322. Multiple rigid units 321 are included, with adjacent rigid units 321 connected by a rotating shaft 323. The drive motor 322 drives the rotating shaft 323 to rotate, adjusting the included angle between adjacent rigid units 321. Specifically, multiple rigid units 321 are connected to form a foldable structure. One rigid unit 321 in the foldable structure is located at the first end, rotatably connected to the cavity wall of the second mounting cavity 121. Another rigid unit 321 in the foldable structure is located at the last end, screwed to a counterweight 31. When the drive motor 322 drives the rotating shaft 323 to rotate to adjust the included angle between adjacent rigid units 321, the last end of the foldable structure moves relative to the first end, thereby extending or shortening the telescopic component 32. The structure composed of multiple rigid units 321, while fulfilling the telescopic function, effectively utilizes space and achieves a compact layout. Compared to some traditional linear telescopic structures, this design can achieve a larger range of telescopic movements within the limited second mounting cavity 121, thus improving space utilization.

[0058] like Figure 2 and Figure 3 As shown, the rigid unit 321 is further constructed as a long plate structure, with adjacent rigid units 321 connected at their ends along the length direction via a pivot 323. The length dimension of the long plate structure is greater than its width and thickness dimensions. Multiple long plate-shaped rigid units 321 are connected sequentially via pivot 323. When the drive motor 322 drives the pivot 323 to rotate and change the included angle between adjacent rigid units 321, a large linear displacement change can be achieved during the extension or retraction of the telescopic component 32, meaning that the counterweight 31 can move over a relatively long distance. The relatively small width and thickness of the long plate structure allow for a more compact layout within the limited second mounting cavity 121. This design fully utilizes the spatial shape of the mounting cavity, reduces space waste caused by excessively large structural dimensions, and enables the telescopic component 32 to achieve a large range of extension and retraction within a limited space while maintaining the overall structural rationality, thus 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 expansion joint is made of stainless steel plate with the grade SUS630 / 17-4PH, an ultimate strength of 1310 MPa, a yield strength of 1180 MPa, and a fatigue strength of approximately 576 MPa.

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

[0061] In a specific application scenario, the drive motor 322 may be underpowered. By setting a large electric motor at the head end of the telescopic component 32 and connecting the large electric motor 324 and the drive motor 322 through a high-voltage cable 324, power can be supplied to the drive motor 322.

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

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

[0064] Data acquisition: Motion sensors collect real-time attitude and center of gravity position data of the offshore power generation platform 1000.

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

[0066] Drive motor 322 control: The control unit allocates the rotation angle of each drive motor 322 according to the adjustment command, and controls the speed and direction of each drive motor 322 through PWM (Pulse Width Modulation) signal. After the counterweight is moved to the target position, the drive motor 322 stops running.

[0067] Feedback Adjustment: Motion sensors continuously monitor the attitude changes of the offshore power generation platform 1000, and the control unit fine-tunes the rotation angle of the drive motor 322 based on the feedback data to ensure that the offshore power generation platform 1000 remains stable.

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

[0069] Example 3

[0070] like Figure 2As shown, further, the cavity wall of the second mounting cavity 121 is provided with a slide rail 122 extending along the first direction, and the bottom of the counterweight 31 is provided with a sliding member 311, which slides in cooperation with the slide rail 122. Here, the sliding member 311 is a pulley. On the one hand, the resistance that the telescopic component 32 needs to overcome when pushing or pulling the counterweight 31 is smaller. This means that the drive motor 322 of the telescopic component 32 consumes less energy when adjusting the position of the counterweight 31, which improves energy utilization efficiency and helps to extend the running 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. The pulley rolls on the slide rail 122, so that the counterweight 31 can only move along the first direction, reducing the deviation or shaking during its movement, which is conducive to more precise control of the position of the counterweight 31.

[0071] Example 4

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

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

[0074] like Figure 4 As shown, the wave energy conversion device 2 further includes a return spring 24. One end of the return spring 24 is fixed to the end cap 232 of the cylinder 23, and the other end is fixed to the magnetic component 22. The return spring 24 is configured to apply an elastic force toward the middle of the cylinder 23 to the magnetic component 22 when deformed. The return spring 24 enables the magnetic component 22 to reciprocate within the cylinder 23. When the wave pushes the magnetic component 22 to move in the electromagnetic channel 25, the spring deforms. After the wave force weakens or disappears, the spring pulls the magnetic component 22 back with its elastic force, increasing the number of times the magnetic component 22 cuts magnetic field lines. Compared to the magnetic component 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 wave energy conversion into electrical energy. At the same time, when the strong impact of the wave causes the magnetic component 22 to move rapidly, the return spring 24 acts as a buffer. The elastic deformation of the spring absorbs part of the impact force, preventing the magnetic component 22 from violently colliding with the inside of the cylinder 23 due to excessive instantaneous impact force. This protects the structural integrity of the magnetic component 22 and the cylinder 23, 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 violent shaking of the magnetic component 22.

[0075] like Figure 4 As shown, further, the return springs 24 include multiple springs; at least one return spring 24 is connected between the magnetic component 22 and one end cap 232 of the cylinder 23, and at least one return spring 24 is connected between the magnetic component 22 and the other end cap 232 of the cylinder 23. The return springs 24 on both sides are respectively connected between the magnetic component 22 and the two end caps 232 of the cylinder 23, enabling bidirectional balanced reset of the magnetic component 22. When the wave pushes the magnetic component 22 towards one end cap 232, the return spring 24 at that end is stretched, while the return spring 24 at the other end is compressed. When the wave force disappears, the return springs 24 at both ends work together to pull the magnetic component 22 back to the middle of the cylinder 23 in a more stable and balanced manner. Compared to setting a return spring 24 at only one end, this bidirectional reset mechanism can more accurately control the position of the magnetic component 22, ensuring that it accurately returns to the optimal power generation position each time, thus improving the stability and power generation efficiency of the wave energy conversion device. Meanwhile, under the action of multiple return springs 24, the magnetic component 22 can make more round trips within the cylinder 23, which greatly increases the chance of generating electricity and improves the efficiency of converting wave energy into electrical energy compared to a single return spring 24.

[0076] Example 5

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

[0078] Other configurations and operations of the offshore power generation platform 1000 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here. In the description of the present invention, "first feature" and "second feature" may include one or more of the features. The vertical, horizontal, and front-back directions are defined as shown in the figures.

[0079] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

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

Claims

1. An offshore power generation platform, characterized in that, include: The column (100) comprises three columns arranged in an equilateral triangle; A wind turbine (200) is located at the center of an equilateral triangle formed by the columns (100); An integrated device (300) for center of gravity adjustment and wave energy conversion is provided between two adjacent columns (100). The integrated device for center of gravity adjustment and wave energy conversion (300) includes a housing (1), a wave energy conversion device (2), and a center of gravity adjustment device (3). The housing (1) includes a first half-shell (11) and a second half-shell (12) disposed between two adjacent columns (100). The first half-shell (11) has a first mounting cavity (111), and the second half-shell (12) has a second mounting cavity (121). Both the first mounting cavity (111) and the second mounting cavity (121) extend along a first direction. The wave energy conversion device (2) is located in the first mounting cavity (111) and includes a coil (21) and a magnetic component (22). The coil (21) is constructed as a spiral extending along the first direction and surrounds an electromagnetic channel (25). The magnetic component (22) is located in the electromagnetic channel (25) and moves within it. The center of gravity adjustment device (3) is located in the second mounting cavity (121) and includes a counterweight (31) and a telescopic component (32). The telescopic component (32) is used to drive the counterweight (31) to move within the second mounting cavity (121). The first direction is the arrangement direction parallel to the two adjacent columns (100).

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

3. The offshore power generation platform according to claim 2, characterized in that, Each of the telescopic components (32) includes a rigid unit (321) and a drive motor (322); The rigid unit (321) includes multiple units, and two adjacent rigid units (321) are connected by a rotating shaft (323). The drive motor (322) is used to drive the rotating shaft (323) to rotate in order to adjust the included angle between 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 two adjacent rigid units (321) are connected at their ends in the length direction by the pivot (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 power the center of gravity adjustment device (3).

6. The offshore power generation platform according to claim 1, characterized in that, The second mounting cavity (121) has a slide rail (122) extending along the first direction on its cavity wall, and the bottom of the counterweight (31) has a sliding member (311) that slides in cooperation with the slide rail (122).

7. The offshore power generation platform according to claim 1, characterized in that, The wave energy conversion device (2) also includes a cylindrical body (23) extending along the first direction; The coil (21) is embedded in the side 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) also includes a reset spring (24), one end of which is fixed to the end cap (232) of the cylinder (23) and the other end is fixed to the magnetic component (22); The return spring (24) is configured to apply an elastic force toward the center of the cylinder (23) to the magnetic element (22) during deformation.

9. The offshore power generation platform according to claim 8, characterized in that, The return spring (24) includes multiple springs; At least one of the reset springs (24) is connected between the magnetic element (22) and one end cap (232) of the cylinder (23), and at least one of the reset springs (24) is connected between the magnetic element (22) and the other end cap (232) of the cylinder (23).

10. The offshore power generation platform according to claim 1, characterized in that, It also includes pontoons (4); The pontoon (4) is connected between the column (100) and the shell (1).

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