An integrated device of a floating structure-oscillating water column wave energy conversion device

Abstract

The present application belongs to the technical field of ocean renewable energy development and utilization, and discloses an integrated device of a floating structure-oscillating water column wave energy conversion device. A vertical column and a lateral support column form a lattice design, reducing wave load and ensuring structural stability. Energy concentrating plates are arranged on the side of the vertical column. The control system controls the movement of the energy concentrating plates to form reflected energy concentration after monitoring by the monitoring system, improving wave energy conversion efficiency. At the same time, the energy concentrating plates are lifted under extreme sea conditions to reduce wave load. A flow regulating system is arranged inside the air chamber of the oscillating water column wave energy conversion device to regulate the flow of air in the air chamber into the turbine generator, so that the power generation efficiency of the turbine generator reaches the maximum value, improving the conversion efficiency of the device. The present application has stable structure, high energy conversion efficiency, strong adaptability and high survival ability under extreme sea conditions, and can concentrate waves through the oscillating water column wave energy conversion device.

Description

Technical Field

[0001] This invention relates to the field of marine renewable energy development and utilization technology, specifically to an integrated device for a floating structure-oscillating water column wave energy conversion device. Background Technology

[0002] In recent years, floating offshore wind turbine (FOWT) technology has developed rapidly due to engineering improvements, gradually propelling the industry towards maturity. However, several major issues still constrain the large-scale development of FOWT. Although FOWT has development potential in deep water areas, it is still in its early stages of development, with high levelized cost of energy (LCOE). Furthermore, providing a stable operating environment for FOWT is also a significant challenge. Meanwhile, recent policies have proposed that, in order to further increase the overall development of marine clean energy, the core focus should be on researching the integrated development of multiple marine energy sources to achieve large-scale utilization of marine energy.

[0003] To achieve complementary development of multiple energy sources at sea, combining wave energy converters (WECs) with floating structures to enable synergistic power generation from multiple energy sources has become a novel solution. By integrating the WECs onto the floating structures, near-surface space can be effectively utilized, energy output can be increased, and the cost of infrastructure sharing can be reduced. This integrated model not only allows for the sharing of floating structures and the reduction of overall engineering construction costs, but also makes full use of the idle near-surface space of the floating structures, improving the overall energy output of the marine area and effectively solving the industry problem of insufficient benefits from single-energy source development.

[0004] Among various types of wind turbine energy sources (WECs), the oscillating water column (OWC) device is widely considered the best integration choice for stationary wind turbine platforms due to its advantages such as simple and durable structure, high energy extraction efficiency, and low operation and maintenance costs. Its working principle relies on a sealed air chamber where the rise and fall of waves drives the water column within the chamber to oscillate back and forth. This periodic compression and expansion of the air within the chamber creates a reciprocating airflow, which in turn drives a turbine generator to convert wave energy into electrical energy. Crucially, because the floating structure is connected to the wind turbine, the actual power generation height of the turbine components is relatively high, while the near-shore application is low. This results in the long-term idle and wasted space around the main piles in the near-shore wave action zone. Furthermore, the intermittent nature of relying on a single energy source leads to insufficient power supply stability. Therefore, integrating an OWC device into the wave zone of the floating structure enables complementary development of multiple energy sources.

[0005] Numerous academic studies and practical engineering cases have demonstrated that the OC4 platform (Offshore Code Comparison Collaboration), developed by the International Energy Agency (IEA), is a benchmark platform for deep-water floating wind power. Its typical structure is a semi-submersible, three-column configuration. Extensive numerical simulations and model tests have validated its design, and it has been recognized by the international academic and engineering communities as a benchmark model for comparing the hydrodynamic performance of floating structures. This platform exhibits excellent motion performance and structural reliability, and is widely used in the integrated design and performance evaluation of various marine energy installations.

[0006] However, current integration solutions for floating structures and OWC (Overseas Wave Capacity) devices still have significant technical shortcomings. Most are simple rigid splices, lacking directional energy concentration, and their wave energy capture efficiency is greatly affected by wave direction. They also lack active risk avoidance structures, making it easy for instantaneous high pressure to form inside the air chambers under extreme sea conditions, which in turn increases the wave load on the floating foundation, exacerbates structural fatigue damage, and may even cause device failure. They cannot simultaneously achieve efficient power generation and structural safety, making it difficult to meet the practical engineering needs of nearshore wind-wave complementary development. Summary of the Invention

[0007] To address the shortcomings of existing solutions, this invention provides an integrated device for a floating structure-oscillating water column wave energy conversion device. The device utilizes a lattice structure to connect the oscillating water column wave energy conversion device to the lateral support columns of the floating structure. This device includes an air chamber with a flow regulation system at the upper end and an energy-concentrating plate at the lower end. The energy-concentrating plate concentrates energy through rotation. The flow regulation system ensures that the opening ratio of the air vents meets the opening ratio corresponding to the maximum power generation efficiency of the turbine generator. A central cylindrical floating foundation of the floating structure connects to a wind turbine, achieving combined wind-wave power generation. This multi-pronged approach improves the power generation efficiency of the wave energy device. In extreme sea conditions, the energy-concentrating plate can be moved away from the sea surface; the lattice structure reduces the effect of wave loads, thus ensuring the survivability of the device.

[0008] The technical solution of the present invention is as follows: an integrated device for a floating structure-oscillating water column wave energy conversion device, comprising a floating structure, an oscillating water column wave energy conversion device, a control system, a monitoring system, a vertical column, and a turbine generator; The floating structure is the main body of the device, including a central cylindrical floating foundation, horizontal connecting rods, and lateral support columns. The central cylindrical floating foundation is a cylindrical load-bearing body located at the geometric center of the integrated device of the floating structure-oscillating water column wave energy conversion device. There are three lateral support columns, which are evenly distributed at a 120° angle along the circumference of the central cylindrical floating foundation. The central cylindrical floating foundation and the lateral support columns are fixedly connected by horizontal connecting rods to form a spatial triangular stable support frame. The upper ends of the three lateral support columns are all fixedly connected to the oscillating water column wave energy conversion device through vertical columns. The oscillating water column wave energy conversion device includes an air chamber, a track structure, an energy-concentrating plate, a flow regulation system, and a sliding system. The air chamber has an open bottom that communicates with seawater, and an air vent and flow regulation system at the top. The air vent is connected to a turbine generator. The flow regulation system controls the opening area of ​​the air vent through a control system to achieve optimal conversion efficiency for the turbine generator. The energy-concentrating plate is located outside the air chamber and moves in a circular and vertical motion along the track structure via the sliding system. It concentrates energy according to wave conditions and meets the survival requirements under extreme sea conditions. When the energy-concentrating plate moves to the corresponding position, the sliding system at the top of the energy-concentrating plate fixes it in place to meet operational requirements. The control system is located on one side of the turbine generator and includes a control center and a power supply module, which are electrically connected to the sliding system, monitoring system, and flow regulation system.

[0009] The horizontal connecting rods include an upper horizontal connecting rod, an upper diagonal connecting rod, and a lower horizontal connecting rod, all of which are rigidly connected to the lateral support columns in an integrated manner, forming a spatial support structure with uniform force on all four sides, thereby improving the overall anti-overturning ability.

[0010] The central cylindrical floating foundation is connected to a fan at its upper end.

[0011] The vertical column is designed in a lattice structure, connecting the lateral support column and the oscillating water column wave energy conversion device.

[0012] The monitoring system includes a wind speed monitoring sensor and a laser wavefront displacement sensor to collect wave direction and wave height parameters in real time. The control system uses the monitoring data to adjust the angle of the energy-concentrating plate by adjusting the sliding system to concentrate the wave. In extreme sea conditions, the control system regulates the vertical movement of the energy-concentrating plate along the track structure to raise it to a safe position for hazard avoidance.

[0013] The flow regulation system includes a rotatable rod and a connecting plate; the rotatable rod is electrically connected to the control system and is connected to the connecting plate; the control system controls the rotation of the rotatable rod, thereby driving the connecting plate to change the opening of the air hole at the top of the air chamber, controlling the flow rate into the turbine generator, so that the turbine generator can maintain operation at maximum efficiency.

[0014] The track structure includes a rack track and a sliding ball track. The track structure is located outside the air chamber. The rack on the rack track is combined with the sliding module on the sliding system to drive the energy-concentrating plate to move up and down. The bottom of the sliding ball track is inlaid with balls, which together with the sliding system drive the rotation of the energy-concentrating plate.

[0015] The sliding system includes a telescopic retainer and a sliding module, located on top of the energy-concentrating plate. Both the telescopic retainer and the sliding module are electrically connected to the control system. The sliding module drives the energy-concentrating plate to rotate and move vertically on the track structure. The rotation satisfies the structural energy-concentrating effect, and the vertical movement lifts the energy-concentrating plate, reduces wave load, and improves survivability. When the energy-concentrating plate moves to the position to be fixed, the telescopic retainer retracts inward, clamping the sliding ball track and the energy-concentrating plate to fix the energy-concentrating plate. When movement is required, the telescopic retainer extends outward, releasing the sliding ball track and the energy-concentrating plate, allowing the energy-concentrating plate to move.

[0016] The energy-concentrating plate is located on the track structure and slides along the track structure. Under operating sea conditions, the control system analyzes the ocean conditions by monitoring system data and controls the sliding system to rotate, thereby driving the energy-concentrating plate to rotate to the wave direction position to concentrate energy, improve the oscillation of the gas in the gas chamber, and improve power generation efficiency. Under extreme sea conditions, the control system directly controls the sliding system to drive the energy-concentrating plate to move vertically, so that the energy-concentrating plate is away from the sea surface, thereby reducing the effect of wave load on the device and improving the device's survivability.

[0017] The control system includes a control center and a power supply module. The control center controls the overall structure based on the ocean conditions obtained from the monitoring system, while the power supply module provides the necessary power to the controlled components and controls the rotation, lifting and lowering of the energy-concentrating plate and the rotation of the rotatable rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) Under operating sea conditions: This invention integrates an oscillating water column wave energy conversion device into the wave-affected part of the floating structure to generate wave energy, achieving complementary utilization of multiple energy sources in time and space; This invention sets an energy-concentrating plate on the side of the vertical column, and concentrates energy by rotating the energy-concentrating plate to achieve the maximum reflection and wave-concentrating effect under different wave directions, thereby improving the wave energy conversion efficiency. This invention sets a flow regulation system inside the air chamber of the oscillating water column wave energy conversion device to regulate the airflow entering the turbine generator, so that the turbine generator reaches its maximum power, thereby improving the wave energy conversion efficiency.

[0019] (2) Under extreme sea conditions: The present invention establishes a lattice structure design by connecting the oscillating water column wave energy conversion device to the lateral support column of the floating structure through a vertical column, thereby reducing the impact of wave load on the device. The energy-concentrating plate of the present invention is moved up to the outside of the air chamber through the sliding system along the rack track, away from the water surface, reducing the wave load on the device and improving the survivability of the integrated device under extreme sea conditions. Attached Figure Description

[0020] Figure 1 This is a three-dimensional perspective view of the integrated device of the floating structure-oscillating water column wave energy conversion device of the present invention; Figure 2 This is a partial three-dimensional perspective view of the integrated device of the floating structure-oscillating water column wave energy conversion device of the present invention; Figure 3 This is a cross-sectional view of the lateral support column of the integrated device of the floating structure-oscillating water column wave energy conversion device of the present invention; Figure 4 This is a cross-sectional view of the flow regulation system and control system of the integrated device for a floating structure-oscillating water column wave energy conversion device according to the present invention. Figure 5 This is a cross-sectional view of the sliding ball track of the integrated device of the floating structure-oscillating water column wave energy conversion device of the present invention; The components are: 1-Floating structure, 2-Oscillating water column wave energy conversion device, 3-Control system, 4-Turbine generator, 5-Rail structure, 6-Energy concentrator, 7-Flow regulation system, 8-Sliding system, 9-Monitoring system, 10-Vertical column, 11-Central cylindrical floating foundation, 12-Horizontal connecting rod, 13-Lateral support column, 21-Air chamber, 22-Air hole, 31-Control center, 32-Power supply module, 51-Rack and pinion track, 52-Sliding ball track, 71-Rotating rod, 72-Connecting plate, 81-Telescopic fixing device, 82-Sliding module, 91-Wind speed monitoring sensor, 92-Laser wave surface displacement sensor, 121-Upper horizontal connecting rod, 122-Upper inclined connecting rod, 123-Lower horizontal connecting rod. Detailed Implementation

[0021] To further understand the content of this invention, a detailed description of the invention is provided in conjunction with the accompanying drawings and embodiments. It should be noted that this technology can be used not only for wind turbine components but also for offshore structures such as floating foundations. It is understood that the specific embodiments described herein are merely for explaining the relevant invention and not for limiting the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. The terms "first," "second," etc., used in this invention are provided for the convenience of describing the technical solutions of this invention and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solutions of this invention. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, referring to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this invention.

[0022] Example 1 Referring to the accompanying drawings, this embodiment proposes an integrated device for a floating structure-oscillating water column wave energy conversion device, mainly including a floating structure 1, an oscillating water column wave energy conversion device 2, a monitoring system 9, a control system 3, and a turbine generator 4; the floating structure 1 includes a central cylindrical floating foundation 11, horizontal connecting rods 12, and lateral support columns 13, wherein the horizontal connecting rods 12 include an upper horizontal connecting rod 121, an upper inclined connecting rod 122, and a lower horizontal connecting rod 123, and the horizontal connecting rods 12 are rigidly connected to the central cylindrical floating foundation 11 to ensure the rigidity of the overall frame structure and ensure the stability of the device, and the upper end of the central cylindrical floating foundation 11 is connected to a wind turbine; the lateral support columns 13 of the floating structure 1 are fixedly connected to the oscillating water column wave energy conversion device 2 through vertical columns 10 to form a lattice structure. The oscillating water column wave energy conversion device 2 includes an air chamber 21, a track structure 5, a flow regulation system 7, and a sliding system 8. The top of the air chamber 21 has an air hole 22, which is connected to a turbine generator 4. The flow regulation system 7 is installed at the bottom of the air hole 22, and a control system 3 is installed next to the turbine generator 4. The lower end of the air chamber 21 is an open structure, which introduces seawater into the air chamber 21. Under operating sea conditions, the movement of seawater in the air chamber 21 causes the gas in the air chamber 21 to also undergo compression or expansion, enabling the turbine generator 4 to generate electricity. Under extreme sea conditions, the open structure can also balance the air pressure inside and outside the air chamber 21. An energy-concentrating plate 6 is provided on the outer side of the oscillating water column wave energy conversion device 2; a track structure 5 is provided on the outer wall of the oscillating water column wave energy conversion device 2, the track structure 5 including a sliding ball track 52 and a rack track 51; the sliding system 8 consists of a telescopic fixing device 81 and a sliding module 82, both of which are electrically connected to the control system 3. The control system 3 controls the telescopic fixing device 81 to allow the energy-concentrating plate 6 to rotate along the sliding ball track 52, and controls the sliding module 82 to allow the energy-concentrating plate 6 to move up and down along the rack track 51. When the energy-concentrating plate 6 moves to a suitable position, the telescopic fixing device 81 retracts, fixing the energy-concentrating plate 6 to the sliding ball track 52.

[0023] For the integrated device of the floating structure-oscillating water column wave energy conversion device in this embodiment, its monitoring system 9 includes a wind speed monitoring sensor 91 and a laser wave surface displacement sensor 92. The two combined can measure real-time wave conditions. The turbine generator 4 is mainly located at the top of the oscillating water column wave energy conversion device 2 and connected to the air hole 22. The control system 3 is located next to the turbine generator 4. The control system 3 includes a control center 31 and a power supply module 32. The control center 31 is connected to the monitoring system 9. According to the measured wave conditions, the control center 31 sends electrical signals to the rotatable rod 71, the telescopic fixer 81, and the sliding module 82. The power supply module 32 provides power support for them, so that the rotatable rod 71 rotates, the telescopic fixer 81 scales, and the sliding module 82 moves, so that the device works normally.

[0024] The main principle of the oscillating water column wave energy conversion device 2 in this embodiment is that the water column in the air chamber 21 oscillates up and down under the action of waves, which compresses or expands the air in the air chamber 21, thereby generating airflow at the air hole 22 at the top of the air chamber 21. The airflow drives the turbine generator 4 connected to the air hole 22 to work, completing the conversion of wave energy into electrical energy.

[0025] In a preferred embodiment, the flow regulation system 7 includes a rotatable rod 71 and a connecting plate 72. One end of the rotatable rod 71 is electrically connected to the control system 3, and the other end of the rotatable rod 71 is fixedly connected to the connecting plate 72. The control system 3 can drive the moving rod to swing to adjust the degree of obstruction of the air hole 22 by the connecting plate 72.

[0026] Based on this implementation, the working principle of the flow regulation system 7 is as follows: the control system 3 controls the rotatable rod 71 to swing, thereby adjusting the degree to which the connecting plate 72 moves away from or blocks the air hole 22, thus affecting the opening and closing degree of the air hole 22. It can be understood that different degrees of blocking of the air hole 22 by the connecting plate 72 can further regulate the intake air flow into the turbine generator 4, thereby regulating the power generation of the turbine generator 4.

[0027] In addition, a track structure 5 is fixedly installed around the floating structure 1 and the oscillating water column wave energy conversion device 2. The track structure 5 includes a sliding ball track 52 and a rack track 51. The energy-concentrating plate 6 is located on the sliding ball track 52, with its concave surface facing the oscillating water column wave energy conversion device 2. A sliding system 8 is provided at the upper end of the energy-concentrating plate 6. The sliding system 8 includes a telescopic fixing device 81 and a sliding module 82, both of which are electrically connected to the control system 3. The energy-concentrating plate 6 moves in a circular motion along the sliding ball track 52. When it moves to the position to be fixed, the telescopic fixing device 81 fixes it, stopping the energy-concentrating plate 6 from moving. When it moves to the preset position, it engages with the rack track 51, and the sliding module 82 drives the energy-concentrating plate 6 to move up and down along the rack track 51.

[0028] Therefore, through the design of the sliding ball track 52, rack track 51, energy-concentrating plate 6, and sliding system 8, under operating sea conditions, the telescopic retainer 81 fixes the energy-concentrating plate 6. Based on the direction of the incident wave, the position of the energy-concentrating plate 6 is rotated via the sliding ball track 52, ensuring that the wave is incident on the energy-concentrating plate 6 in a forward direction. The energy-concentrating plate 6 then reflects the wave towards the oscillating water column wave energy conversion device 2, thus achieving excellent energy concentration. Under extreme sea conditions, the telescopic retainer 81 is released, and the energy-concentrating plate 6 is rotated to a suitable position via the sliding ball track 52, connecting it to the rack track 51. Then, the sliding system 8 moves it upwards along the rack track 51 to a position away from the sea surface, thus ensuring structural safety.

[0029] Preferably, this embodiment also includes a wind speed monitoring sensor 91 and a laser wavefront displacement sensor 92, which are electrically connected to the control system 3 and located on the central cylindrical floating foundation 11.

[0030] Therefore, the laser wavefront displacement sensor 92 and the wind speed monitoring sensor 91 can measure the actual wavefront conditions and the current wind speed. The control system 3 can then calculate the current wave conditions and predict the wave conditions in the next few minutes based on the obtained data and empirical formulas, so as to make preparations in advance. The control center 31 and the power supply module 32 can then adjust the movement and rotation of the energy-concentrating plate 6 and the operation of the flow regulation system 7 according to the wave conditions.

[0031] Understandably, the rotation and fixation of the telescopic fixing device 81, the movement of the sliding module 82, and the operation of the flow regulation component in this integrated device are all regulated by the control center 31 and the power supply module 32. While the oscillating water column wave energy conversion device 2 is working, the wind turbine also generates electricity using wind energy, so that the entire integrated device can generate electricity simultaneously without interfering with each other.

[0032] Simultaneously, the flow regulation system 7 adjusts the opening and closing of the air vents 22 to achieve the optimal opening ratio required by the turbine generator 4, thereby improving the conversion efficiency. Furthermore, the rotation of the energy-concentrating plate 6 enhances the wave energy concentration effect. Combined with the wind turbine, this achieves wind-wave co-generation, realizing at least three methods to improve the conversion efficiency of the oscillating water column wave energy conversion device 2. The movement of the energy-concentrating plate 6 moves the structure away from the sea surface; the placement of vertical columns 10 forms a lattice structure, reducing the impact of waves on the structure, thus ensuring the safety of the device through at least two methods.

[0033] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An integrated device for a floating structure-oscillating water column wave energy conversion device, characterized in that, It includes a floating structure (1), an oscillating water column wave energy conversion device (2), a control system (3), a monitoring system (9), a vertical column (10), and a turbine generator (4); The floating structure (1) is the main body of the device, including a central cylindrical floating foundation (11), a horizontal connecting rod (12), and lateral support columns (13). The central cylindrical floating foundation (11) is a cylindrical load-bearing body located at the geometric center of the integrated device of the floating structure-oscillating water column wave energy conversion device. There are three lateral support columns (13), which are evenly arranged at a 120° angle along the circumference of the central cylindrical floating foundation (11). The central cylindrical floating foundation (11) and the lateral support columns (13) are fixedly connected by the horizontal connecting rod (12) to form a spatial triangular stable support frame. The upper ends of the three lateral support columns (13) are all fixedly connected to the oscillating water column wave energy conversion device (2) by vertical columns (10). The oscillating water column wave energy conversion device (2) includes an air chamber (21), a track structure (5), an energy-concentrating plate (6), a flow regulation system (7), and a sliding system (8). The bottom of the air chamber (21) is open and connected to seawater, and the top has an air hole (22) and a flow regulation system (7). The air hole (22) is connected to the turbine generator (4). The flow regulation system (7) controls the opening area of ​​the air hole (22) through the control system (3) to make the turbine generator (4) achieve the best conversion efficiency. The energy-concentrating plate (6) is arranged in the air chamber (21). 1) On the outside, along the track structure (5), it makes circular and vertical movements through the sliding system (8) to concentrate energy according to wave conditions and meet the survival needs under extreme sea conditions; when the energy-concentrating plate (6) moves to the corresponding position, the sliding system (8) located on the top of the energy-concentrating plate (6) fixes the energy-concentrating plate (6) to meet the working requirements; the control system (3) is located on one side of the turbine generator (4), including the control center (31) and the power supply module (32), and is electrically connected to the sliding system (8), the monitoring system (9), and the flow regulation system (7).

2. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The horizontal connecting rod (12) includes an upper horizontal connecting rod (121), an upper diagonal connecting rod (122), and a lower horizontal connecting rod (123), all of which are rigidly connected to the lateral support column (13) to form a spatial support structure with uniform force on all four sides, thereby improving the overall anti-overturning ability.

3. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The central cylindrical floating foundation (11) is connected to a fan at its upper end.

4. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The vertical column (10) is designed in a lattice structure and connects the lateral support column (13) and the oscillating water column wave energy conversion device (2).

5. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The monitoring system (9) includes a wind speed monitoring sensor (91) and a laser wavefront displacement sensor (92) to collect wave direction and wave height parameters in real time; the control system (3) adjusts the angle of the energy-concentrating plate (6) by adjusting the sliding system (8) according to the monitoring data to achieve wave concentration, and controls the vertical movement of the energy-concentrating plate (6) along the track structure (5) under extreme sea conditions to raise it to a safe position for risk avoidance.

6. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The flow regulation system (7) includes a rotatable rod (71) and a connecting plate (72); the rotatable rod (71) is electrically connected to the control system (3), and the rotatable rod (71) is connected to the connecting plate (72); the control system (3) controls the rotation of the rotatable rod (71), thereby driving the connecting plate (72) to change the opening of the air hole (22) at the top of the air chamber (21), controlling the flow rate entering the turbine generator (4), so that the turbine generator (4) can maintain operation under maximum efficiency conditions.

7. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The track structure (5) includes a rack track (51) and a sliding ball track (52); the track structure (5) is arranged outside the air chamber (21). The rack on the rack track (51) is combined with the sliding module (82) on the sliding system (8) to drive the energy-concentrating plate (6) to move up and down. The bottom of the sliding ball track (52) is inlaid with balls, which together with the sliding system (8) drive the rotation of the energy-concentrating plate (6).

8. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The sliding system (8) includes a telescopic fixer (81) and a sliding module (82), located on top of the energy-concentrating plate (6). Both the telescopic fixer (81) and the sliding module (82) are electrically connected to the control system (3). The sliding module (82) drives the energy-concentrating plate (6) to rotate and move vertically on the track structure (5). The rotation satisfies the energy-concentrating effect of the structure, and the vertical movement lifts the energy-concentrating plate (6), reduces wave load, and improves survivability. When the energy-concentrating plate (6) moves to the position to be fixed, the telescopic fixer (81) retracts inward, clamps the sliding ball track (52) and the energy-concentrating plate (6), and fixes the energy-concentrating plate (6). When it needs to move, the telescopic fixer (81) extends outward, relaxes the sliding ball track (52) and the energy-concentrating plate (6), and the energy-concentrating plate (6) moves.

9. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The energy-concentrating plate (6) is located on the track structure (5) and slides along the track structure (5). Under working sea conditions, the control system (3) analyzes the ocean conditions through the data of the monitoring system (9) and controls the sliding system (8) to rotate, thereby driving the energy-concentrating plate (6) to rotate to the wave direction position to concentrate energy, improve the oscillation of the gas in the gas chamber (21), and improve the power generation efficiency. Under extreme sea conditions, the control system (3) directly controls the sliding system (8) to drive the energy-concentrating plate (6) to move vertically, so that the energy-concentrating plate (6) is away from the sea surface, thereby reducing the effect of wave load on the device and improving the device's survivability.

10. The integrated device for a floating structure-oscillating water column wave energy conversion device according to claim 1, characterized in that, The control system (3) includes a control center (31) and a power supply module (32). The control center (31) controls the overall structure based on the ocean conditions obtained by the monitoring system (9). The power supply module (32) provides the required power to the controlled components and controls the rotation, lifting and lowering of the energy-concentrating plate (6) and the rotation of the rotatable rod (71).

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