A wave and wind power generation platform device based on TMD vibration reduction and its control method

Abstract

The present invention relates to the technical fields of renewable energy utilization and ocean engineering equipment, and discloses a wind and wave combined power generation platform device based on TMD vibration reduction and a control method thereof, which includes a wind power generation device and a floating platform; the wind power generation device is fixedly connected to the floating platform; the floating platform includes three wave energy power generation devices, three platform columns and a platform central control system; the three platform columns are distributed in a triangle; a wave energy power generation device is connected between every two platform columns, and the platform column is connected to the wave energy power generation device through a side connection mechanism; the wave energy power generation device, the platform column and the side connection mechanism are all communicatively connected to the platform central control system, solving the technical problems that the existing semi-submersible wind and wave combined power generation platform device needs to reserve space to meet the installation of large-mass vibration reduction devices, which increases the burden of the platform device and affects the overall design of the platform device, and lacks an effective active vibration reduction adjustment mechanism when facing complex and changeable sea conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of renewable energy utilization and ocean engineering equipment, and particularly relates to a combined wind and wave power generation platform device based on TMD vibration reduction and a control method therefor. Background Art

[0002] With the increasing awareness of sustainable development and environmental protection among people, new energy has been receiving more and more attention. The excessive use of fossil fuels has led to serious environmental problems such as climate change and air pollution, and there is an urgent need to shift to low-carbon, clean, and renewable energy. Therefore, society is committed to developing and promoting renewable energy technologies such as solar energy, wind energy, and ocean energy, aiming to reduce carbon emissions and achieve a green transformation of energy.

[0003] The ocean, as the largest natural resource reservoir on Earth, contains huge energy potential, especially in terms of offshore wind energy and wave energy. Offshore wind energy is regarded as one of the most promising clean energies in the future due to its characteristics such as high wind speed and strong persistence. At the same time, wave energy, as an energy form with high density, wide distribution, and strong predictability, also has great development value. These two energy forms are not only rich in resources but also relatively stable, providing a continuous energy supply for people. However, although the potential of wind energy and wave energy is generally recognized, the development and utilization of offshore wind energy and wave energy still face challenges in terms of technology and cost-effectiveness, and more technological innovations are needed to achieve commercial applications.

[0004] Currently, in the design and operation of offshore energy collection platform devices, vibration control is an important technical challenge. Due to the instability of offshore wind and wave power, the energy loss and structural damage caused by complex dynamic loads often become key problems in the design of platform devices, and more perfect solutions are urgently needed. Traditional vibration reduction methods often only control vibrations within a specific frequency range, and at the same time, traditional vibration reduction devices are difficult to adapt to the changes in complex sea conditions, resulting in a significant reduction in their vibration reduction efficiency. The use of TMD vibration reduction technology can provide a wider range of vibration control. By matching the vibration frequency of the platform device, TMD effectively absorbs and dissipates energy, thereby reducing the response of the structure. In addition, the use of TMD increases the adaptability of the platform device, can cope with vibrations of multiple frequencies, improves the response to wave power input by reducing the excessive vibration of the structure, and reduces the unplanned energy consumption of the system, which is of great significance for improving the structural stability and energy collection efficiency of the platform device. Therefore, applying TMD technology to offshore energy collection platform devices can not only extend the service life of the platform device but also improve the reliability and efficiency of energy collection. In-depth research on TMD vibration reduction has important engineering significance and practical value.

[0005] At present, the vibration control of the combined wind and wave power generation platform device has the following forms: The patent with the application number 201922141830.7 discloses a combined device of a tuned mass damper TMD and multi-section floating wave energy conversion, including at least two sets of tuned mass dampers TMD and multi-section floating wave energy conversion devices, which are respectively installed between the offshore building and the caisson, and between the caisson and the multi-section floating wave energy conversion device; The patent with the application number 202022517530.7 discloses an offshore floating wind turbine vibration damping device, including a damping system, a slidable flexible plate system, an elastic support system and other devices; The patent with the application number 202111104531.1 discloses an offshore floating platform column vibration damping heaving plate and wave energy collection device. By tuning the oscillation spring stiffness and the mass of the heaving plate, a reverse resonance is formed between the heaving plate and the column, and the motion energy of the column under the action of waves is transmitted to the motion of the heaving plate through reverse resonance, which can effectively reduce the motion of the floating platform. The motion energy of the heaving plate is absorbed by the cylindrical linear generator set in the lower cabin to realize the conversion and utilization of wave energy.

[0006] Due to the uncertainty of the marine environment, it poses a major challenge to the offshore energy collection platform device. Among them, the randomness and uncertainty of wind and wave conditions cause large-amplitude vibrations of the platform device, which will significantly affect the operation efficiency and structural safety. The existing vibration damping measures of the platform device introduce various forms of dampers on the basis of the mooring system. In the design of various dampers, TMD vibration damping has the advantages of being more efficient, economical, easy to install and maintain. However, its existing structural design has defects due to the limitations of mass and the space of the platform device. The large additional mass can only provide limited stability and is insufficient in dealing with multi-frequency and high-intensity vibrations. At the same time, the vibration damping measures lack an active adjustment mechanism and cannot effectively adapt to complex and changeable sea conditions. As a large structure, the wave energy platform device generally requires reserved space to meet the installation of large-mass vibration damping devices, which not only increases the burden on the platform device but also affects the overall design of the platform device. Therefore, the research and development of an efficient TMD vibration damping solution for complex sea conditions is urgent and necessary. It is necessary to develop a combined wind and wave power generation platform device and a vibration damping control strategy based on TMD vibration damping for the wind and wave power generation platform device, significantly reduce the vibration of the platform device, and ensure the stability and power generation efficiency of the platform device. Summary of the Invention

[0007] The present invention provides a combined wind and wave power generation platform device and a control method based on TMD vibration damping, which solves the technical problems that the existing semi-submersible combined wind and wave power generation platform device needs to reserve space to meet the installation of large-mass vibration damping devices, increases the burden on the platform device while affecting the overall design of the platform device, and lacks an effective active vibration damping adjustment mechanism when facing complex and changeable sea conditions.

[0008] A wave and wind combined power generation platform device based on TMD vibration reduction provided by the first aspect of the present invention includes a wind power generation device and a floating platform;

[0009] The wind power generation device is fixedly connected to the floating platform;

[0010] The floating platform includes three wave energy power generation devices, three platform columns and a platform central control system;

[0011] The three platform columns are distributed in a triangle;

[0012] The wave energy power generation devices are connected between every two platform columns, and the platform columns are connected to the wave energy power generation devices through side connection mechanisms;

[0013] The side connection mechanism is used to realize the switching of the connection mode between the wave energy power generation device and the platform column;

[0014] The wave energy power generation device, the platform column and the side connection mechanism are all communicatively connected to the platform central control system.

[0015] Optionally, the wind power generation device includes a wind speed sensor, a wind turbine generator, a wind turbine hub, a nacelle and a tower base;

[0016] The tower base is arranged at the middle position of the floating platform, and the fixed support rods of the tower base are respectively fixedly connected to the three platform columns;

[0017] The nacelle is arranged at the top of the tower base;

[0018] The wind speed sensor and the wind turbine generator are arranged in the nacelle;

[0019] Both the wind speed sensor and the wind turbine generator are communicatively connected to the platform central control system;

[0020] The output shaft of the wind turbine generator is provided with the wind turbine hub,

[0021] A plurality of blades are arranged on the wind turbine hub.

[0022] Optionally, the wave energy power generation device includes a side truss, a buoyancy plate, a shock absorber and a plurality of wave energy conversion mechanisms;

[0023] The bottom of the side truss is connected to the upper end surface of the buoyancy plate through the shock absorber;

[0024] A plurality of the side connection mechanisms are arranged on both sides of the side truss, and the side connection mechanism is used to connect to the platform column;

[0025] A plurality of the wave energy conversion mechanisms are arranged on the side truss;

[0026] The floating platform further includes a wave sensor;

[0027] The wave sensor is arranged on the buoyancy plate, and the wave sensor is communicatively connected with the platform central control system.

[0028] Optionally, the side truss includes a truss body and an extending arc portion;

[0029] A plurality of the extending arc portions are arranged on the truss body;

[0030] The truss body and the plurality of extending arc portions are integrally arranged;

[0031] The truss body and the plurality of extending arc portions are both connected to the upper end surface of the buoyancy plate through the shock-absorbing member;

[0032] The wave energy conversion mechanism is arranged between every two of the extending arc portions.

[0033] Optionally, the shock-absorbing member is any one of an isolation rubber bearing, a viscoelastic damper and a friction damper.

[0034] Optionally, the isolation rubber bearing includes an isolation bearing cushion layer, a damping lead core, a buffer cushion plate and a laminated vibration filtering member;

[0035] The isolation bearing cushion layer includes an upper isolation bearing cushion layer and a lower isolation bearing cushion layer;

[0036] The lower end surface of the lower isolation bearing cushion layer is fixedly connected to the buoyancy plate;

[0037] The upper end surface of the lower isolation bearing cushion layer is connected to the bottom of the laminated vibration filtering member through the buffer cushion plate;

[0038] The laminated vibration filtering member includes a plurality of circular rubber sheets and a plurality of circular iron sheets;

[0039] The plurality of circular rubber sheets and the plurality of circular iron sheets are alternately stacked in sequence, and the circular rubber sheets and the circular iron sheets are adhered to each other through an adhesive;

[0040] The damping lead core is arranged at the middle position of the laminated vibration filtering member;

[0041] The horizontal cross-section of the laminated vibration filtering member is circular;

[0042] A waterproof coating is arranged on the side surface of the laminated vibration filtering member;

[0043] The top of the laminated filter and vibration member is connected to the lower end surface of the upper isolation bearing cushion layer through the buffer cushion plate.

[0044] Optionally, the wave energy conversion mechanism includes a wave absorption dipole, an oscillator hydraulic mechanism, a connecting hinge, and a support roller;

[0045] The support roller is provided on the truss body;

[0046] The oscillator hydraulic mechanism includes a hydraulic support and an oscillator hydraulic system;

[0047] The support roller is connected to the hydraulic support through the connecting hinge;

[0048] The oscillator hydraulic system is provided inside the hydraulic support;

[0049] The oscillator hydraulic system includes a hydraulic connecting rod, an oscillator hydraulic cylinder, an accumulator, a hydraulic motor, and a hydraulic generator;

[0050] One end of the hydraulic connecting rod is connected to the wave absorption dipole;

[0051] The other end of the hydraulic connecting rod is connected to the oscillator hydraulic cylinder;

[0052] The oscillator hydraulic cylinder is connected to the accumulator, and the accumulator is used to receive the hydraulic oil compressed by the hydraulic cylinder and convert it into pressure potential energy;

[0053] The accumulator is connected to the hydraulic motor, and the hydraulic motor is used to convert the pressure potential energy into kinetic energy;

[0054] The hydraulic motor is connected to the hydraulic generator, and the hydraulic generator is used to convert the kinetic energy into electric energy.

[0055] Optionally, the side connection mechanism includes a mechanical locking assembly and a side damping assembly;

[0056] The mechanical locking assembly includes a support cushion plate, an electromagnetic armature alignment member, and a pin iron core;

[0057] The electromagnetic armature alignment member includes a first electromagnetic armature alignment member and a second electromagnetic armature alignment member;

[0058] One side of the first electromagnetic armature alignment member is fixedly connected to the side surface of the truss body through the support cushion plate;

[0059] The pin iron core is provided on the other side of the first electromagnetic armature alignment member;

[0060] One side of the second electromagnetic armature alignment member is fixedly connected to the platform column through the support cushion plate;

[0061] On the other side of the second electromagnetic armature alignment member, an alignment groove is provided, and the alignment groove is used to cooperate with the plug core for auxiliary alignment and locking;

[0062] The side damping assembly is arranged on the side of the truss body.

[0063] Optionally, the side damping assembly is any one of a damping spring device, a viscous damper, and a magnetorheological damper.

[0064] Optionally, the damping spring device includes a damping support cushion layer, a connecting rod, a spring gasket, a damping hydraulic rod, a spring, and a damping hydraulic cylinder;

[0065] The damping support cushion layer includes a first damping support cushion layer and a second damping support cushion layer;

[0066] One side of the first damping support cushion layer is fixedly connected to the side of the truss body;

[0067] The other side of the first damping support cushion layer is connected to one end of the connecting rod;

[0068] The other end of the connecting rod is movably connected to the damping hydraulic cylinder;

[0069] The spring is sleeved on the surfaces of the connecting rod and the damping hydraulic cylinder through the spring gasket;

[0070] The second damping support cushion layer is arranged at one end of the damping hydraulic cylinder away from the first damping support cushion layer;

[0071] Alignment holes are provided on the platform column, and the alignment holes are used for fixedly connecting with the second damping support cushion layer.

[0072] A control method for an apparatus of a wind-wave combined power generation platform based on TMD vibration reduction according to the second aspect of the present invention includes:

[0073] In response to the detected real-time wind speed data and real-time wave height data, compare the real-time wind speed data with the preset cut-out wind speed data;

[0074] When the real-time wind speed data is greater than the preset cut-out wind speed data, disconnect the grid connection with the wind power generation device and control the blades of the wind power generation device to pitch to the preset pitch angle;

[0075] When the real-time wind speed data is less than or equal to the preset cut-out wind speed data, compare the real-time wave height data with the preset lower wave height threshold;

[0076] When the real-time wave height data is less than or equal to the preset lower wave height threshold, control the mechanical locking assembly to perform the alignment and locking operation;

[0077] When the real-time wave height data is greater than the preset lower threshold of wave height, the real-time wave height data is compared with the preset upper threshold of wave height;

[0078] When the real-time wave height data is greater than the preset upper threshold of wave height, the mechanical locking component is controlled to perform alignment locking operation, and the platform column is controlled to store water and dive;

[0079] When the real-time wave height data is less than or equal to the preset upper threshold of wave height, the platform column is controlled to drain water and float, and the mechanical locking component is controlled to perform unlocking operation.

[0080] As can be seen from the above technical solutions, the present invention has the following advantages:

[0081] 1. The wave energy power generation device and the wind power generation device are coupled and installed on the semi-submersible floating platform. While realizing the complementary structure of the platform, it can realize the comprehensive capture and utilization of wind energy and wave energy by the wind-wave combined power generation platform device, and the energy conversion efficiency is higher than the prior art;

[0082] 2. The wave energy power generation device of the wind-wave combined power generation platform device can be used as the mass component for TMD vibration reduction of the entire platform. It is connected to the platform through the damping spring device to form a TMD vibration reduction system. The platform TMD vibration reduction system is constructed through the structure separation design and the side connection mechanism. While not introducing external mass, it can realize the vibration control of the platform under normal power generation conditions, realize the vibration control of the overall structure, and the vibration reduction effect is higher than the prior art;

[0083] 3. A connection conversion control method combined with the wave avoidance strategy of the wind-wave combined power generation platform device in the present invention is provided, and the connection mode between the wave energy power generation device and the platform can be adaptively adjusted according to the algorithm. Brief Description of the Drawings

[0084] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0085] Figure 1 It is the overall structure schematic diagram of the wind-wave combined power generation platform device based on TMD vibration reduction according to the embodiment of the present invention;

[0086] Figure 2 It is the side view schematic diagram of the wind-wave combined power generation platform device based on TMD vibration reduction according to the embodiment of the present invention;

[0087] Figure 3 It is the top view schematic diagram of the wind-wave combined power generation platform device based on TMD vibration reduction according to the embodiment of the present invention;

[0088] Figure 4 Top view schematic diagram of the floating platform without the wind power generation device in the embodiment of the present invention;

[0089] Figure 5 Overall schematic diagram of the wave energy power generation device in the embodiment of the present invention;

[0090] Figure 6 Side view schematic diagram of the platform column in the embodiment of the present invention;

[0091] Figure 7 Middle sectional view schematic diagram of the wave energy power generation device in the embodiment of the present invention;

[0092] Figure 8 Three-dimensional sectional view schematic diagram of the seismic isolation rubber bearing in the embodiment of the present invention;

[0093] Figure 9 Schematic diagram of the mechanical locking component in the embodiment of the present invention;

[0094] Figure 10 Exploded three-dimensional schematic diagram of the mechanical locking component in the embodiment of the present invention;

[0095] Figure 11 Schematic diagram of the damping spring device in the embodiment of the present invention;

[0096] Figure 12 Step flow chart of the control method of an apparatus for a combined wind and wave power generation platform based on TMD vibration reduction in the embodiment of the present invention;

[0097] Figure 13 Control logic flow chart of the floating platform connection conversion in the embodiment of the present invention.

[0098] Among them, the meanings of the reference numerals are as follows:

[0099] 1. Wind turbine hub; 2. nacelle; 3. blade; 4. tower base; 5. side truss; 6. platform column; 7. buoyancy plate; 8. side connection mechanism; 9. floating platform; 10. damping spring device; 11. mechanical locking component; 12. seismic isolation rubber bearing; 13. wave absorbing element; 14. oscillator hydraulic mechanism; 15. support roller; 16. connecting hinge; 17. damping lead core; 18. waterproof coating; 19. buffer pad; 20. laminated vibration filtering member; 21. seismic isolation bearing cushion layer; 22. electromagnetic armature alignment member; 23. support pad; 24. pin iron core; 25. damping bearing cushion layer; 26. connecting rod; 27. spring gasket; 28. damping hydraulic rod; 29. spring; 30. damping hydraulic cylinder. Detailed implementation manners

[0100] The embodiment of the present invention provides a wave and wind combined power generation platform device based on TMD vibration reduction and a control method, which are used to solve the technical problems that the existing semi-submersible wave and wind combined power generation platform device needs to reserve space to meet the installation of large-mass vibration reduction devices, which not only increases the burden of the platform device but also affects the overall design of the platform device, and lacks an effective active vibration reduction adjustment mechanism when facing complex and ever-changing sea conditions.

[0101] In order to make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0102] Due to the uncertainty of the marine environment, it poses a major challenge to offshore energy collection platforms. Among them, the randomness and uncertainty of wave and wind conditions cause large-amplitude vibrations of the platform, which will significantly affect the operation efficiency and structural safety. The existing platform vibration reduction measures introduce various damper forms on the basis of the mooring system. Among various damper designs, TMD vibration reduction has the advantages of higher efficiency, economy, easy installation and maintenance, etc. However, its existing structural design has defects due to mass and platform space limitations. The relatively large additional mass can only provide limited stability and is insufficient in dealing with multi-frequency and high-intensity vibrations. At the same time, the vibration reduction measures lack an active adjustment mechanism and cannot effectively adapt to complex and ever-changing sea conditions. As a large structure, the wave energy platform generally requires reserved space to meet the installation of large-mass vibration reduction devices, which not only increases the burden on the platform but also affects the overall design of the platform. Therefore, the research and development of an efficient TMD vibration reduction solution for complex sea conditions is urgent and necessary. It is necessary to develop a wave and wind combined power generation platform device based on TMD vibration reduction and a control method for wave and wind power generation platforms, significantly reduce platform vibrations, and ensure the stability and power generation efficiency of the platform.

[0103] To achieve the above objectives, the following specific embodiments are provided:

[0104] TMD vibration reduction: The tuned mass damper (TMD) is a vibration control device that uses an additional mass body to reduce the resonance of the structure through its own vibration. By adjusting its frequency to match the resonance frequency of the structure, the dissipation of vibration energy is achieved.

[0105] Wave energy power generation device: An ocean energy conversion device that converts the kinetic energy of ocean waves into electrical energy. The device usually includes a floating body, a hydraulic pump, and a generator, and uses the rise and fall of waves to drive mechanical motion to generate electricity.

[0106] Wind-wave combined power generation platform device: A composite marine energy utilization platform for wind energy and wave energy power generation technologies, which can share structural components to reduce costs and maintenance requirements.

[0107] Please refer to Figures 1-11 , A wind-wave combined power generation platform device based on TMD vibration reduction provided by the present invention includes a wind power generation device and a floating platform 9;

[0108] The wind power generation device is fixedly connected to the floating platform 9;

[0109] The floating platform 9 includes three wave energy power generation devices, three platform columns 6 and a platform central control system;

[0110] The three platform columns 6 are distributed in a triangle;

[0111] A wave energy power generation device is connected between every two platform columns 6, and the platform column 6 is connected to the wave energy power generation device through a side connection mechanism 8;

[0112] The side connection mechanism 8 is used to realize the switching of the connection method between the wave energy power generation device and the platform column 6;

[0113] The wave energy power generation device, the platform column 6 and the side connection mechanism 8 are all communicatively connected to the platform central control system.

[0114] It is worth mentioning that the floating platform 9 is a semi-submersible floating platform.

[0115] It should be noted that the wind power generation device is fixedly connected to the floating platform 9, and the absorption and conversion of wind energy are achieved through the wind power generation device. The floating platform 9 includes three wave energy power generation devices, three platform columns 6 and a platform central control system. The three platform columns 6 are distributed in a triangle, and wave energy power generation devices are connected between every two platform columns 6. Moreover, the platform column 6 is connected to the wave energy power generation device through a side connection mechanism 8, forming a floating platform 9 with an equilateral triangle structure, which can adapt to wave inflows from different directions. Among them, the platform column 6 is connected to the wave energy power generation device through the side connection mechanism 8, which can realize free movement along the side of the platform. Further, when in the working state, the side connection mechanism 8 is controlled by the platform central control system to perform soft connection between the wave energy power generation device and the platform column 6, and the wave energy is absorbed and converted by the wave energy power generation device. When not in the working state, the side connection mechanism 8 is controlled by the platform central control system to perform rigid connection between the wave energy power generation device and the platform column 6. Through the separated design of the platform structure, the present invention meets the conditions for constituting the TMD vibration mass, uses the wave energy power generation device as the additional mass of TMD vibration reduction, and adds viscous damping to the wind-wave combined power generation platform device, realizing the comprehensive utilization of platform design and TMD vibration reduction strategy. It can not only reduce the structural vibration of the semi-submersible wind-wave combined power generation device in all directions under normal sea conditions, improve the platform stability and the power generation efficiency of the wave energy device; at the same time, under extreme sea conditions, it can cooperate with the control strategy of the combined power generation device platform to avoid diving, realizing the switching between the rigid connection and the soft connection of the wave energy device and the platform, and reducing the influence of the combined action of wind and waves on the platform.

[0116] Please refer to Figures 1-4 , a wind-wave combined power generation platform device based on TMD vibration reduction provided by the present invention. The wind power generation device includes a wind speed sensor, a wind turbine generator, a wind turbine hub 1, a nacelle 2 and a tower base 4;

[0117] The tower base 4 is arranged at the middle position of the floating platform 9, and the fixed support rods of the tower base 4 are respectively fixedly connected to the three platform columns 6;

[0118] The nacelle 2 is arranged at the top of the tower base 4;

[0119] The nacelle 2 is provided with a wind speed sensor and a wind turbine generator;

[0120] Both the wind speed sensor and the wind turbine generator are communicatively connected to the platform central control system;

[0121] The output shaft of the wind turbine generator is provided with a wind turbine hub 1,

[0122] A plurality of blades 3 are arranged on the wind turbine hub 1.

[0123] It should be noted that the wind power generation device is jointly composed of a wind speed sensor, a wind turbine, a wind turbine hub 1, a nacelle 2, and a tower base 4. The tower base 4 is arranged at the middle position of the floating platform 9, and the fixed support rods of the tower base 4 are respectively fixedly connected to the three platform columns 6, thereby realizing the absorption and conversion of the wind energy on the upper part of the floating platform 9. It is worth mentioning that the fixed support rods of the tower base 4 are respectively fixedly connected to the three platform columns 6. Among them, the connecting rods 26 are respectively connected to the platform columns 6, so that the wind power generation device is located at the center position of the floating platform 9. When affected by the combined action of wind and waves, the distribution of the pressure borne is more uniform, which can minimize the impact of wind and waves on the wind power generation device and improve the anti-overturning ability.

[0124] In specific implementation, when the wind load acts on the blade 3, it drives the rotation of the wind turbine rotor in the nacelle 27, and the wind energy can be converted into the mechanical energy of the wind turbine rotor. Among them, the rotation of the rotor of the wind turbine drives the generator to generate electricity and converts the mechanical energy into electrical energy, realizing the conversion of wind energy into mechanical energy and then generating electricity. Among them, the wind speed sensor is used to collect real-time wind speed data and send it to the platform central control system.

[0125] Please refer to Figures 5-7 , a wave and wind combined power generation platform device based on TMD vibration reduction provided by the present invention. The wave energy power generation device includes a side truss 5, a buoyancy plate 7, a shock absorber, and a plurality of wave energy conversion mechanisms;

[0126] The bottom of the side truss 5 is connected to the upper end surface of the buoyancy plate 7 through a shock absorber;

[0127] A plurality of side connection mechanisms 8 are arranged on both sides of the side truss 5, and the side connection mechanisms 8 are used to connect to the platform column 6;

[0128] A plurality of wave energy conversion mechanisms are arranged on the side truss 5;

[0129] The floating platform 9 further includes a wave sensor;

[0130] A wave sensor is arranged on the buoyancy plate 7, and the wave sensor is communicatively connected to the platform central control system.

[0131] It should be noted that the wave energy power generation device is composed of a side truss 5, a buoyancy board 7, shock absorbers, and multiple wave energy conversion mechanisms. The bottom of the side truss 5 is connected to the upper end surface of the buoyancy board 7 through shock absorbers. Multiple side connection mechanisms 8 are arranged on both sides of the side truss 5, and are connected to the platform column 6 through the multiple side connection mechanisms 8. Multiple wave energy conversion mechanisms are arranged on the side truss 5, and the wave energy conversion mechanisms are used to absorb and convert wave energy. The floating platform 9 further includes a wave height sensor; a wave height sensor is arranged on the buoyancy board 7, and the wave height sensor is communicatively connected to the platform central control system. Among them, the wave height sensor includes, but is not limited to, devices such as data buoys and remote sensing wave gauges, and the installation position generally depends on the device. The real-time wave height data is collected by the wave height sensor and sent to the platform central control system.

[0132] It is worth mentioning that the buoyancy board 7 has a gradually increasing horizontal cross-sectional area from bottom to top, and an outward convex part is arranged on the wave-facing side of the buoyancy board 7. The vertical cross-sectional area of the outward convex part from left to right gradually increases from left to right. By arranging the outward convex part, the oncoming wave impact can be better received, and the anti-overturning property and stability of the floating platform 9 can be improved. The wave-facing side is the side away from the truss body, which can be understood as the windward side of each surface of the floating platform 9.

[0133] It is worth mentioning that the wave energy power generation device is not limited to the floating direct drive type, and includes various forms such as the oscillating water column type and the pneumatic type.

[0134] Please refer to Figures 5-7 , a wind-wave combined power generation platform device based on TMD vibration reduction provided by the present invention, the side truss 5 includes a truss body and an extended arc part;

[0135] Multiple extended arc parts are arranged on the truss body;

[0136] The truss body and the multiple extended arc parts are integrally arranged;

[0137] The truss body and the multiple extended arc parts are both connected to the upper end surface of the buoyancy board 7 through shock absorbers;

[0138] A wave energy conversion mechanism is arranged between two adjacent extended arc parts.

[0139] It should be noted that the side truss 5 includes a truss body and extended arc portions. There are multiple extended arc portions provided on the truss body, and the truss body and the multiple extended arc portions are integrally provided. In order to ensure that the buoyancy plate 7 can float stably in the sea without tilting, through the setting of the double-support structure of the side truss 5, that is, multiple extended arc portions are provided on the side of the truss body, which effectively improves the stability of the buoyancy plate 7 and at the same time can prevent the center of gravity of the buoyancy plate 7 from shifting. Among them, the truss body is a hollow structure. When the oncoming wind and waves come from different directions, through the setting of the hollow structure, the resistance and impact force are reduced, which can improve the stability of the platform and at the same time prevent seawater from remaining. The number of extended arc portions is set according to actual needs.

[0140] It should be noted that both the truss body and the multiple extended arc portions are connected to the upper end surface of the buoyancy plate 7 through shock-absorbing members. Each extended arc portion is provided with one shock-absorbing member, and multiple shock-absorbing members are provided at the bottom of the truss body. The number of shock-absorbing members is set according to actual needs.

[0141] It should be noted that as Figure 5 shown, a wave energy conversion mechanism is provided between every two extended arc portions. Among them, wave energy conversion mechanisms are also provided on the two outermost extended arc portions at both sides. The number of wave energy conversion mechanisms is set according to actual needs. It is worth mentioning that a preset-width activity space is left between the wave energy conversion mechanism and the extended arc portion, which is convenient for the wave energy conversion mechanism to convert wave energy.

[0142] Please refer to Figure 8 , for a wind-wave combined power generation platform device based on TMD vibration reduction provided by the present invention, the shock-absorbing member is any one of an isolation rubber bearing 12, a viscoelastic damper, and a friction damper.

[0143] The isolation rubber bearing 12 includes an isolation bearing cushion layer 21, a damping lead core 17, a buffer cushion plate 19, and a laminated vibration filtering member 20;

[0144] The isolation bearing cushion layer 21 includes an upper isolation bearing cushion layer 21 and a lower isolation bearing cushion layer 21;

[0145] The lower end surface of the lower isolation bearing cushion layer 21 is fixedly connected to the buoyancy plate 7;

[0146] The upper end surface of the lower isolation bearing cushion layer 21 is connected to the bottom of the laminated vibration filtering member 20 through the buffer cushion plate 19;

[0147] The laminated vibration filtering member 20 includes multiple circular rubber sheets and multiple circular iron sheets;

[0148] The multiple circular rubber sheets and the multiple circular iron sheets are alternately stacked in sequence, and the circular rubber sheets and the circular iron sheets are bonded through an adhesive;

[0149] A damping lead core 17 is arranged at the middle position of the laminated vibration filter member 20;

[0150] The horizontal cross-section of the laminated vibration filter member 20 is circular;

[0151] A waterproof coating 18 is arranged on the side surface of the laminated vibration filter member 20;

[0152] The top of the laminated vibration filter member 20 is connected to the lower end surface of the upper isolation bearing cushion layer 21 through a buffer cushion plate 19.

[0153] It should be noted that the shock absorber is any one of the isolation rubber bearing 12, the viscoelastic damper and the friction damper. Among them, the isolation rubber bearing 12 is composed of an isolation bearing cushion layer 21, a damping lead core 17, a buffer cushion plate 19 and a laminated vibration filter member 20. The damping lead core 17 is surrounded by the laminated vibration filter member 20 and wrapped with a waterproof coating 18. The upper and lower sides of the laminated vibration filter member 20 are respectively connected to the buffer cushion plate 19. When the isolation rubber bearing 12 is arranged at the bottom of the extended arc part, the lower isolation bearing cushion layer 21 is fixedly connected to the buoyancy plate 7, and the upper isolation bearing cushion layer 21 is fixedly connected to the bottom of the extended arc part. When the isolation rubber bearing 12 is arranged at the bottom of the truss body, the lower isolation bearing cushion layer 21 is fixedly connected to the buoyancy plate 7, and the upper isolation bearing cushion layer 21 is fixedly connected to the bottom of the truss body. Under normal operating conditions, the isolation rubber bearing 12 can realize the relative displacement between the upper wave energy conversion mechanism and the lower buoyancy plate 7, buffer the relative vibration and absorb energy; under extreme sea conditions, due to the limiting effect of the mechanical locking component 11 in the side connection mechanism 8, the isolation rubber bearing 12 only plays the role of supporting the upper wave energy conversion mechanism.

[0154] It should be noted that the laminated vibration filter member 20 includes a plurality of circular rubber sheets and a plurality of circular iron sheets; the plurality of circular rubber sheets and the plurality of circular iron sheets are alternately stacked in sequence, and the circular rubber sheets and the circular iron sheets are bonded through an adhesive. That is, the laminated vibration filter member 20 is a laminated filter member with a cylindrical structure formed by alternately stacking a layer of circular rubber sheets and a layer of circular iron sheets. And a damping lead core 17 is arranged at the middle position of the laminated vibration filter member 20. Through the combined structure of lamination, the damping lead core 17 and the buffer cushion plate 19, the isolation rubber bearing 12 can realize a large horizontal relative displacement, and at the same time provide a large damping, playing the role of vibration filtering.

[0155] Please refer to Figure 7 , a wave and wind combined power generation platform device based on TMD vibration reduction provided by the present invention, the wave energy conversion mechanism includes a wave absorber 13, an oscillator hydraulic mechanism 14, a connecting hinge 16 and a supporting roller 15;

[0156] The truss body is provided with a supporting roller 15;

[0157] The oscillator hydraulic mechanism 14 includes a hydraulic support and an oscillator hydraulic system;

[0158] The support roller 15 is connected to the hydraulic support through a connecting hinge 16;

[0159] The oscillator hydraulic system is arranged inside the hydraulic support;

[0160] The oscillator hydraulic system includes a hydraulic connecting rod, an oscillator hydraulic cylinder, an accumulator, a hydraulic motor, and a hydraulic generator;

[0161] One end of the hydraulic connecting rod is connected to the wave-absorbing oscillator 13;

[0162] The other end of the hydraulic connecting rod is connected to the oscillator hydraulic cylinder;

[0163] The oscillator hydraulic cylinder is connected to the accumulator, and the accumulator is used to receive the hydraulic oil compressed by the hydraulic cylinder and convert it into pressure potential energy;

[0164] The accumulator is connected to the hydraulic motor, and the hydraulic motor is used to convert the pressure potential energy into kinetic energy;

[0165] The hydraulic motor is connected to the hydraulic generator, and the hydraulic generator is used to convert the kinetic energy into electrical energy.

[0166] It should be noted that the wave energy conversion mechanism is composed of a wave-absorbing oscillator 13, an oscillator hydraulic mechanism 14, a connecting hinge 16, and a support roller 15. The wave-absorbing oscillator 13 is a wave-absorbing eagle head oscillator with an eagle head structure. The upper surface of the wave-absorbing oscillator 13 is an arc structure, and the lower surface of the wave-absorbing oscillator 13 is concave inward. When the wave incoming flow arrives, the wave-absorbing oscillator 13 bends downward under the action of the wave load. Since the wave-absorbing oscillator 13 is a tapered structure with a gradually decreasing cross-sectional width or length from top to bottom, the wave-absorbing oscillator 13 can reduce resistance and facilitate downward bending. The truss body is provided with support rollers 15, and each support roller 15 corresponds to an oscillator hydraulic mechanism 14. The oscillator hydraulic mechanism 14 includes a hydraulic support and an oscillator hydraulic system. The support roller 15 is hinged to the hydraulic support through a connecting hinge 16. An oscillator hydraulic system is arranged inside the hydraulic support. The oscillator hydraulic system is composed of a hydraulic connecting rod, an oscillator hydraulic cylinder, an accumulator, a hydraulic motor, and a hydraulic generator. When there is a wave incoming flow, the wave-absorbing oscillator bends downward under the action of the wave load, pushing the oscillator hydraulic system to do work, converting the wave mechanical energy into hydraulic energy storage to achieve energy conversion. Inside the oscillator hydraulic system, the high-pressure hydraulic oil pushes the hydraulic motor to rotate, driving the synchronous generator to generate electrical energy, which is stored in the chemical energy storage device.

[0167] Please refer to Figure 9 and Figure 10 , for a wind-wave combined power generation platform device based on TMD vibration reduction provided by the present invention, the side connection mechanism 8 includes a mechanical locking component 11 and a side damping component;

[0168] The mechanical locking assembly 11 includes a support backing plate 23, an electromagnetic armature alignment member 22, and a plunger iron core 24;

[0169] The electromagnetic armature alignment member 22 includes a first electromagnetic armature alignment member and a second electromagnetic armature alignment member;

[0170] One side of the first electromagnetic armature alignment member is fixedly connected to the side surface of the truss body through the support backing plate 23;

[0171] The other side of the first electromagnetic armature alignment member is provided with a plunger iron core 24;

[0172] One side of the second electromagnetic armature alignment member is fixedly connected to the platform column 6 through the support backing plate 23;

[0173] The other side of the second electromagnetic armature alignment member is provided with an alignment groove for cooperating with the plunger iron core 24 for auxiliary alignment and locking;

[0174] The side damping assembly is arranged on the side surface of the truss body.

[0175] It should be noted that the mechanical locking assembly 11 is composed of a support backing plate 23, an electromagnetic armature alignment member 22, and a plunger iron core 24. The electromagnetic armature alignment member 22 is of a frustum structure. Among them, the bottom of the first electromagnetic armature alignment member is embedded with a plunger iron core 24, and the bottom of the second electromagnetic armature alignment member is provided with an alignment groove for cooperating with the plunger iron core 24 for auxiliary alignment and locking. When the entire platform is not in the working state, the electromagnetic armature alignment member 22 completes the current injection through the platform central control system, and the strong magnetic field between the iron cores on both sides of the device attracts and approaches. When the preset position is reached, the auxiliary alignment is completed, and then the plunger iron core 24 of the first electromagnetic armature alignment member extends and is embedded in the alignment groove of the second electromagnetic armature alignment member on the opposite side, realizing the hooking and locking of the iron cores, and restoring the rigid connection between the wave energy power generation device and the platform column 6. Among them, one side of the first electromagnetic armature alignment member is fixedly connected to the side surface of the truss body through the support backing plate 23, and one side of the second electromagnetic armature alignment member is fixedly connected to the platform column 6 through the support backing plate 23.

[0176] It is worth mentioning that the mechanical locking assembly 11 can include various forms, such as mechanical clamps, etc.

[0177] Please refer to Figure 11 , for the wave and wind combined power generation platform device based on TMD vibration reduction provided by the present invention, the side damping assembly is any one of a damping spring device 10, a viscous damper, and a magnetorheological damper.

[0178] The damping spring device 10 includes a damping support cushion layer 25, a connecting rod 26, a spring gasket 27, a damping hydraulic rod 28, a spring 29, and a damping hydraulic cylinder 30;

[0179] The damping support cushion layer 25 includes a first damping support cushion layer and a second damping support cushion layer;

[0180] One side of the first damping support cushion layer is fixedly connected to the side surface of the truss body;

[0181] The other side of the first damping support cushion layer is connected to one end of a connecting rod 26;

[0182] The other end of the connecting rod 26 is movably connected to a damping hydraulic cylinder 30;

[0183] The spring 29 is sleeved on the surfaces of the connecting rod 26 and the damping hydraulic cylinder 30 through a spring gasket 27;

[0184] One end of the damping hydraulic cylinder 30 away from the first damping support cushion layer is provided with a second damping support cushion layer;

[0185] Alignment holes are formed in the platform column 6, and the alignment holes are used for fixedly connecting with the second damping support cushion layer.

[0186] It should be noted that the side damping assembly is any one of the damping spring device 10, the viscous damper and the magnetorheological damper. Among them, the damping spring device 10 consists of a damping support cushion layer 25, a connecting rod 26, a spring gasket 27, a damping hydraulic rod 28, a spring 29 and a damping hydraulic cylinder 30. The spring 29 is sleeved on the surfaces of the connecting rod 26 and the damping hydraulic cylinder 30 through a spring gasket 27. One end of the damping hydraulic cylinder 30 away from the first damping support cushion layer is provided with a second damping support cushion layer. Alignment holes are formed in the platform column 6, and the alignment holes are used for fixedly connecting with the second damping support cushion layer. The connecting rod 26 is connected to the connecting rod 26 on the opposite side through a hydraulic damping system composed of the damping hydraulic rod 28 and the damping hydraulic cylinder 30, and is equipped with a spring 29 as a stiffness system to generate damping when the connecting rods 26 on both sides move relative to each other. When the entire platform is in the working state, the platform central control system guides the retraction of the pin core 24. After the pin core 24 is disengaged from the alignment groove on the opposite side, the mechanical locking assembly 11 is completely released, and the damping spring device 10 enters the working state, providing the structural stiffness and additional damping required for platform vibration reduction, and realizing the buffering effect of the relative vibration between the wave energy generating device and the platform column 6. It is worth mentioning that the damping spring device 10 of the present invention is a passive device and starts working immediately when the mechanical locking assembly 11 is completely released.

[0187] It should be noted that the hydraulic system arranged in the platform column 6 is specifically provided with a ballast tank and a control cabin inside; the ballast tank and the control cabin are arranged in layers inside the platform column 6; the ballast tank is placed in the lower layer inside the platform column 6, and the ballast tank is used to adjust the center of gravity of the platform by filling or discharging seawater; the control cabin is placed in the upper layer inside the platform column 6, and the control cabin is used to place control equipment.

[0188] In the present invention, through the comprehensive control of the mechanical locking assembly 11 and the side damping assembly, the connection mode between the wave energy power generation device and the platform column 6 can be freely switched, and a flexible soft connection mode can be adopted. The wind-wave combined power generation platform device obtains the offshore climate conditions and the water surface wave state in real time through the monitoring station and the flow velocity and direction meter. When the weather conditions and the sea surface wave height meet the normal working settings, the mechanical locking assembly 11 is released through the platform central control system, so that the wave energy power generation devices on three sides can move freely and respectively form a TMD vibration reduction system with the side damping assemblies on both sides, while buffering the wind and wave loads received by the wave energy power generation device itself, reducing the structural vibration of the whole platform, and ensuring the stability of the wave energy power generation device and the wind power generation device.

[0189] Through the comprehensive control of the mechanical locking assembly 11 and the side damping assembly, the connection mode between the wave energy power generation device and the platform column 6 can be freely switched, and a rigid connection mode can be adopted. The wind-wave combined power generation platform device obtains the offshore climate conditions and the water surface wave state in real time through the monitoring station and the flow velocity and direction meter. When the weather conditions and the sea surface wave height do not meet the normal working settings, the mechanical locking assembly 11 is closed through the platform central control system, so that the wave energy power generation devices on three sides are fixedly connected to the platform column 6 to form an integral structure. During the process of the platform diving through the hydraulic system, the structural vibration of the whole platform is reduced, and at the same time, it plays a role in protecting the side damping assembly and the shock absorber, and prolongs the service life of the whole vibration reduction system.

[0190] The present invention has the following advantages:

[0191] 1. The wave energy power generation device and the wind power generation device are coupled and installed on the semi-submersible floating platform. While realizing the structural complementarity of the platform, the wind-wave combined power generation platform device can comprehensively capture and utilize wind energy and wave energy, and the energy conversion efficiency is higher than that of the prior art;

[0192] 2. The wave energy power generation device of the wind-wave combined power generation platform device can be used as the mass component of the TMD vibration reduction of the whole platform, and is connected to the platform through the damping spring device 10 to form a TMD vibration reduction system. The platform TMD vibration reduction system is constructed through the structural separation design and the side connection mechanism 8. While not introducing external mass, the vibration control of the platform under normal power generation conditions can be realized, the vibration control of the overall structure can be realized, and the vibration reduction effect is higher than that of the prior art;

[0193] 3. A connection conversion control method combined with the wave avoidance strategy of the wind-wave combined power generation platform device in the present invention is provided, and the connection mode between the wave energy power generation device and the platform can be adaptively adjusted according to the algorithm.

[0194] The present invention utilizes the structure of a wave energy power generation device as an additional mass part for TMD vibration reduction, which can effectively reduce the structural vibration of the wave energy power generation device and the semi-submersible floating platform without introducing external mass. More importantly, by integrating the wave and wind combined power generation platform device's wave avoidance control logic into the TMD vibration reduction strategy, the present invention can adjust the connection mode between the wave energy power generation device and the platform column 6 according to the actual working state of the platform, and can realize the mutual conversion between the soft connection mode under normal power generation conditions and the rigid connection mode under wave avoidance and diving conditions, thereby improving the overall safety and stability of the platform.

[0195] Please refer to Figures 12-13 , a control method for a wave and wind combined power generation platform device applied to TMD vibration reduction provided by the present invention, includes:

[0196] Step 101: In response to the detected real-time wind speed data and real-time wave height data, compare the real-time wind speed data with the preset cut-out wind speed data.

[0197] Step 102: When the real-time wind speed data is greater than the preset cut-out wind speed data, disconnect the grid connection with the wind power generation device and control the blades 3 of the wind power generation device to pitch to the preset pitch angle.

[0198] Step 103: When the real-time wind speed data is less than or equal to the preset cut-out wind speed data, compare the real-time wave height data with the preset lower wave height threshold.

[0199] Step 104: When the real-time wave height data is less than or equal to the preset lower wave height threshold, control the mechanical locking component 11 to perform alignment locking operation.

[0200] Step 105: When the real-time wave height data is greater than the preset lower wave height threshold, compare the real-time wave height data with the preset upper wave height threshold.

[0201] Step 106: When the real-time wave height data is greater than the preset upper wave height threshold, control the mechanical locking component 11 to perform alignment locking operation and control the platform column 6 to store water and dive.

[0202] Step 107: When the real-time wave height data is less than or equal to the preset upper wave height threshold, control the platform column 6 to drain water and float, and control the mechanical locking component 11 to perform unlocking operation.

[0203] The specific implementation is as follows:

[0204] 1) Real-time monitor the real-time wind speed data and real-time wave height data at sea;

[0205] 2) Determine whether the real-time wind speed data exceeds the preset cut-out wind speed data Vcutout. If so, execute 3). If not, disconnect the wind turbine from the power grid and control each blade 3 to pitch 90°. The purpose is to make the plane of blade 3 parallel to the wind direction, greatly reducing the wind load. At this time, the wind turbine idles and does not work, that is, the transmission system from blade 3 to the wind turbine is disconnected. At this time, blade 3 rotates but the generator does not rotate;

[0206] 3) Determine whether the real-time wave height data exceeds the preset lower wave height threshold Hmin. If so, execute 4). If not, turn off the mechanical locking component 11. At this time, the wave and wind combined power generation platform device does not work;

[0207] 4) Determine whether the real-time wave height data exceeds the preset upper wave height threshold Hmax. If so, execute 5)-6). If not, execute 7)-8);

[0208] 5) Turn off the mechanical locking component 11. The electromagnetic armature alignment part 22 in the mechanical locking component 11 completes the current injection through the platform central control system. The strong magnetic field between the iron cores on both sides of the electromagnetic armature alignment part 22 is used for auxiliary alignment. The platform central control system guides the pin iron core 24 to extend, and the iron core hooks with the alignment groove on the opposite side to complete the locking;

[0209] 6) The hydraulic system in the platform column 6 stores water. The three-side platform columns 6 suck in seawater through the hydraulic system, increasing the platform mass to assist the platform in sinking, and the platform central control system adjusts the sinking water level and time. The wave and wind combined power generation platform device completes the diving and wave avoidance operation;

[0210] 7) The hydraulic system in the platform column 6 stores water. The three-side columns discharge seawater through the hydraulic system, reducing the platform mass to assist the platform in floating, and the platform central control system adjusts the floating time to make the wave energy power generation device in the best energy storage position;

[0211] 8) Open the mechanical locking component 11. The platform central control system guides the pin iron core 24 to retract. After the iron core is unhooked from the alignment groove on the opposite side, the mechanical locking component 11 is completely released. At this time, the wave and wind combined power generation platform device works normally, and the side damping component is used for vibration reduction of the wave and wind combined power generation platform device.

[0212] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0213] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be in electrical, mechanical, or other forms.

[0214] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wave and wind power generation platform device based on TMD vibration reduction, characterized in that, It includes a wind power generation device and a floating platform; The wind power generation device is fixedly connected to the floating platform; The floating platform includes three wave energy generation devices, three platform columns and a platform central control system; The three platform columns are distributed in a triangle; The wave energy generation devices are connected between every two of the platform columns, and the platform columns are connected to the wave energy generation devices through side connection mechanisms; The side connection mechanism is used to realize the switching of the connection mode between the wave energy generation device and the platform column; The wave energy generation device, the platform column and the side connection mechanism are all communicatively connected to the platform central control system; The wave energy generation device includes a side truss; The side truss includes a truss body; The side connection mechanism includes a mechanical locking component and a side damping component; The mechanical locking component includes a support backing plate, an electromagnetic armature alignment part and a pin iron core; The electromagnetic armature alignment part includes a first electromagnetic armature alignment part and a second electromagnetic armature alignment part; One side of the first electromagnetic armature alignment part is fixedly connected to the side of the truss body through the support backing plate; The pin iron core is arranged on the other side of the first electromagnetic armature alignment part; One side of the second electromagnetic armature alignment part is fixedly connected to the platform column through the support backing plate; A alignment groove is formed on the other side of the second electromagnetic armature alignment part, and the alignment groove is used to cooperate with the pin iron core for auxiliary alignment and locking; The side damping component is arranged on the side of the truss body; 2. The wave and wind power generation platform device based on TMD vibration reduction according to claim 1, characterized in that The wind power generation device includes a wind speed sensor, a wind turbine generator, a wind turbine hub, a nacelle and a tower base; The tower base is arranged at the middle position of the floating platform, and the fixed support rods of the tower base are respectively fixedly connected to the three platform columns; The nacelle is arranged at the top of the tower base; The wind speed sensor and the wind turbine generator are arranged in the nacelle; Both the wind speed sensor and the wind turbine generator are communicatively connected to the platform central control system; The output shaft of the wind turbine generator is provided with the wind turbine hub, A plurality of blades are arranged on the wind turbine hub; 3. The wave and wind power generation platform device based on TMD vibration reduction according to claim 1, characterized in that, The wave energy generation device further includes a buoyancy plate, a shock absorber and a plurality of wave energy conversion mechanisms; The bottom of the side truss is connected to the upper end surface of the buoyancy plate through the shock absorber; A plurality of the side connection mechanisms are arranged on both sides of the side truss, and the side connection mechanism is used to connect to the platform column; A plurality of the wave energy conversion mechanisms are arranged on the side truss; The floating platform further includes a wave measuring sensor; The wave measuring sensor is arranged on the buoyancy plate, and the wave measuring sensor is communicatively connected to the platform central control system; 4. The wave and wind power generation platform device based on TMD vibration reduction according to claim 3, characterized in that, The side truss further includes an extended arc part; A plurality of the extended arc parts are arranged on the truss body; The truss body and the plurality of extended arc parts are integrally arranged; Both the truss body and the plurality of extended arc parts are connected to the upper end surface of the buoyancy plate through the shock absorber; The wave energy conversion mechanisms are arranged between every two of the extended arc parts.

5. The wave and wind power generation platform device based on TMD vibration reduction according to claim 4, characterized in that, The shock absorber is any one of an isolation rubber bearing, a viscoelastic damper, and a friction damper.

6. The wave and wind power generation platform device based on TMD vibration reduction according to claim 5, characterized in that, The isolation rubber bearing includes an isolation bearing cushion layer, a damping lead core, a buffer cushion plate, and a laminated vibration filtering member; The isolation bearing cushion layer includes an upper isolation bearing cushion layer and a lower isolation bearing cushion layer; The lower end surface of the lower isolation bearing cushion layer is fixedly connected to the buoyancy plate; The upper end surface of the lower isolation bearing cushion layer is connected to the bottom of the laminated vibration filtering member through the buffer cushion plate; The laminated vibration filtering member includes a plurality of circular rubber sheets and a plurality of circular iron sheets; A plurality of the circular rubber sheets and a plurality of the circular iron sheets are alternately stacked in sequence, and the circular rubber sheets and the circular iron sheets are bonded through an adhesive; The damping lead core is arranged at the middle position of the laminated vibration filtering member; The horizontal cross-section of the laminated vibration filtering member is circular; A waterproof coating is arranged on the side surface of the laminated vibration filtering member; The top of the laminated vibration filtering member is connected to the lower end surface of the upper isolation bearing cushion layer through the buffer cushion plate.

7. The wave and wind power generation platform device based on TMD vibration reduction according to claim 4, characterized in that, The wave energy conversion mechanism includes a wave-absorbing oscillator, an oscillator hydraulic mechanism, a connecting hinge, and a supporting roller; The truss body is provided with the supporting roller; The oscillator hydraulic mechanism includes a hydraulic support and an oscillator hydraulic system; The supporting roller is connected to the hydraulic support through the connecting hinge; The oscillator hydraulic system is arranged inside the hydraulic support; The oscillator hydraulic system includes a hydraulic connecting rod, an oscillator hydraulic cylinder, an accumulator, a hydraulic motor, and a hydraulic generator; One end of the hydraulic connecting rod is connected to the wave-absorbing oscillator; The other end of the hydraulic connecting rod is connected to the oscillator hydraulic cylinder; The oscillator hydraulic cylinder is connected to the accumulator, and the accumulator is used for receiving the hydraulic oil compressed by the hydraulic cylinder and converting it into pressure potential energy; The accumulator is connected to the hydraulic motor, and the hydraulic motor is used for converting the pressure potential energy into kinetic energy; The hydraulic motor is connected to the hydraulic generator, and the hydraulic generator is used for converting the kinetic energy into electric energy.

8. The device of a combined wind and wave power generation platform based on TMD vibration reduction according to claim 1, characterized in that, The side damping assembly is any one of a damping spring device, a viscous damper, and a magnetorheological damper.

9. The device of the combined wind and wave power generation platform based on TMD vibration reduction according to claim 8, wherein The damping spring device includes a damping support cushion layer, a connecting rod, a spring gasket, a damping hydraulic rod, a spring, and a damping hydraulic cylinder; The damping support cushion layer includes a first damping support cushion layer and a second damping support cushion layer; One side of the first damping support cushion layer is fixedly connected to the side surface of the truss body; The other side of the first damping support cushion layer is connected to one end of the connecting rod; The other end of the connecting rod is movably connected to the damping hydraulic cylinder; The spring is sleeved on the surfaces of the connecting rod and the damping hydraulic cylinder through the spring gasket; The second damping support cushion layer is arranged at one end of the damping hydraulic cylinder away from the first damping support cushion layer; Alignment holes are formed in the platform column, and the alignment holes are used for fixedly connecting with the second damping support cushion layer.

10. A control method for a wind and wave combined power generation platform device based on TMD vibration reduction according to any one of claims 1-9, characterized in that, Including: In response to the detected real-time wind speed data and real-time wave height data, comparing the real-time wind speed data with the preset cut-out wind speed data; When the real-time wind speed data is greater than the preset cut-out wind speed data, disconnect the grid connection with the wind power generation device and control the blades of the wind power generation device to pitch to the preset pitch angle; When the real-time wind speed data is less than or equal to the preset cut-out wind speed data, compare the real-time wave height data with the preset lower wave height threshold; When the real-time wave height data is less than or equal to the preset lower wave height threshold, control the mechanical locking component to perform the alignment locking operation; When the real-time wave height data is greater than the preset lower wave height threshold, compare the real-time wave height data with the preset upper wave height threshold; When the real-time wave height data is greater than the preset upper wave height threshold, control the mechanical locking component to perform the alignment locking operation and control the platform column to store water and submerge; When the real-time wave height data is less than or equal to the preset upper wave height threshold, control the platform column to drain water and float up, and control the mechanical locking component to perform the unlocking operation.

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