Floating wind power wave energy integrated power generation device and control method thereof

Abstract

This invention provides a floating wind and wave energy integrated power generation device and its control method. The floating wind and wave energy integrated power generation device includes a floating base, a wind turbine, and a wave energy generation device. The wind turbine is mounted on the floating base. The wave energy generation device is mounted on the floating base and includes an electrically connected oscillating float and a wave energy storage device. The oscillating float includes an upper ballast chamber and a lower ballast chamber. Both the upper and lower ballast chambers include multiple ballast sub-cavities. Each ballast sub-cavity has a water inlet and a water outlet. A water inlet valve is provided at the water inlet, and a water outlet valve is provided at the water outlet. The technical solution provided in this application can solve the problems of low utilization rate and poor synergy of wind and wave energy in related technologies.

Description

Technical Field

[0001] This invention relates to the fields of wind power generation and wave energy generation technology, and more specifically, to a floating wind and wave energy integrated power generation device and its control method. Background Technology

[0002] my country’s southeastern coast and offshore waters are rich in wind and wave energy resources. In recent years, with the continuous maturation of offshore wind power technology and the increasing demand for deep-sea resource development, floating offshore wind power and wave power generation technology have become key directions for marine energy development.

[0003] In the relevant technologies, in the practice of floating wind and wave energy integrated power generation devices, offshore wind and wave energy power generation devices are usually deployed independently or the wave energy power generation device is simply integrated into the floating base of the wind turbine.

[0004] However, the development of existing floating wind and wave energy integrated power generation devices is still immature, and they have drawbacks such as low utilization rate of wind and wave energy and poor synergy. Summary of the Invention

[0005] The main objective of this invention is to provide a floating wind and wave energy integrated power generation device and its control method to solve the problems of low utilization rate and poor synergy of wind and wave energy in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a floating wind and wave energy integrated power generation device is provided. The floating wind and wave energy integrated power generation device includes a floating base, a wind turbine generator, and a wave energy power generation device. The wind turbine generator is disposed on the floating base. The wave energy power generation device is disposed on the floating base and includes an electrically connected oscillating float and a wave energy storage device. The oscillating float includes an upper ballast chamber and a lower ballast chamber. Both the upper and lower ballast chambers include multiple ballast sub-cavities. Each ballast sub-cavity has a water inlet and a water outlet. A water inlet valve is provided at the water inlet, and a water outlet valve is provided at the water outlet.

[0007] Furthermore, the floating wind and wave energy integrated power generation device also includes an environmental monitoring device and a control device. The environmental monitoring device, the inlet valve, and the outlet valve are respectively connected to the control device via signals. The control device controls the operation of the inlet valve and the outlet valve based on the monitoring results of the environmental monitoring device.

[0008] Furthermore, the environmental monitoring devices include wave meters and current meters; and / or, the environmental monitoring devices include anemometers and wind turbine condition monitoring sensors.

[0009] Furthermore, the floating wind and wave energy integrated power generation device also includes a yaw system and a pitch system. The yaw system and pitch system are respectively connected to the control unit for signal connection. The control unit controls the operation of the yaw system and pitch system according to the monitoring results of the environmental monitoring unit.

[0010] Furthermore, the ballast sub-cavities have a honeycomb hexagonal structure, with adjacent ballast sub-cavities joined together.

[0011] Furthermore, the oscillating float has a spherical structure.

[0012] Furthermore, the wave energy generation device includes multiple oscillating floats, which are arranged at circumferential intervals along the floating base.

[0013] Furthermore, the floating substrate includes a float and a tower. The lower end of the tower is connected to the float, the wind turbine is installed at the upper end of the tower, the oscillating float is floatingly connected to the float, and the wave energy storage device is installed inside the tower.

[0014] According to another aspect of the present invention, a control method for a floating wind and wave energy integrated power generation device is provided. The control method for the floating wind and wave energy integrated power generation device is implemented by the aforementioned floating wind and wave energy integrated power generation device. The control method for the floating wind and wave energy integrated power generation device includes: acquiring current typhoon parameters; determining the type of the area where the floating wind and wave energy integrated power generation device is located based on the current typhoon parameters; if the type of the area where the floating wind and wave energy integrated power generation device is located is determined to be a high-wind area, then controlling the floating wind and wave energy integrated power generation device to activate a high-efficiency power generation mode; if the type of the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon area, then controlling the floating wind and wave energy integrated power generation device to activate a typhoon mode.

[0015] Furthermore, if the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon zone, the steps for controlling the floating wind and wave energy integrated power generation device to activate typhoon mode include: controlling the wind turbine to stop or idle; using wave energy storage devices to supply power; obtaining the current wind direction and controlling the yaw system to yaw against the wind according to the current wind direction; obtaining the current wind speed; if the current wind speed is greater than the cut-out wind speed but less than the design resistance wind speed, then the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon gale zone, and the floating wind and wave energy integrated power generation device is controlled to activate typhoon defense mode; if the current wind speed is greater than the design resistance wind speed, then the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon eyewall danger zone, and the floating wind and wave energy integrated power generation device is controlled to activate typhoon danger mode.

[0016] Furthermore, the steps for controlling the floating wind and wave energy integrated power generation device to activate the typhoon defense mode include: obtaining the tilt angle of the floating substrate; if the tilt angle of the floating substrate is greater than the preset tilt angle, then controlling the ballast water level of the floating substrate and / or the oscillating float to adjust the attitude.

[0017] Furthermore, the steps for controlling the floating wind and wave energy integrated power generation device to activate the typhoon danger mode include: obtaining the tilt angle of the floating base; if the tilt angle of the floating base is greater than the safe tilt angle, then opening the water inlet valves of all ballast sub-cavities.

[0018] Furthermore, if it is determined that the area where the floating wind and wave energy integrated power generation device is located is a high-wind area, the steps to control the floating wind and wave energy integrated power generation device to start the high-efficiency power generation mode include: obtaining wave parameters; if it is determined that the oscillating float is located at the wave crest, controlling the water inlet valve and the water outlet valve to work, so that the center of mass of the oscillating float rises; if it is determined that the oscillating float is located at the wave trough, controlling the water inlet valve and the water outlet valve to work, so that the center of mass of the oscillating float falls.

[0019] Further, the steps of obtaining the current typhoon parameters and determining the type of the area where the floating wind and wave energy integrated power generation device is located based on the current typhoon parameters include: obtaining the current wind speed; if the current wind speed is greater than the rated wind speed of the wind turbine and less than the cut-out wind speed, then the type of the area where the floating wind and wave energy integrated power generation device is located is determined to be a high-wind area; if the current wind speed is greater than the cut-out wind speed, then the type of the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon area.

[0020] Applying the technical solution of this invention, a floating substrate serves as the basic platform for a floating wind and wave energy integrated power generation device, supporting both the wind turbine and the wave energy generation device. The wind turbine is mounted on the floating substrate to capture wind energy for electricity production. The wave energy generation device is also mounted on the floating substrate. The oscillating float of the wave energy generation device comprises an upper ballast chamber and a lower ballast chamber, each chamber containing multiple independently controllable ballast sub-cavities. The inlet and outlet of each ballast sub-cavity are equipped with inlet and outlet valves, respectively, allowing for precise and dynamic adjustment of the water volume within the chamber. The wave energy storage component stores the electrical energy converted from wave energy by the oscillating float, ensuring a stable power supply to the control systems of the wind turbine and the power generation device. In this embodiment, the double-layer ballast chamber configuration of the oscillating float allows for flexible adjustment of the upper and lower ballast chambers according to the wave period and wave height. Before the wave crest arrives, the water level in the upper ballast sub-chamber can be reduced by draining valves, causing the center of mass of the oscillating buoy to drop and making it easier for the wave to lift it. Conversely, when the wave trough arrives, the upper drain valves are closed and water is added appropriately, raising the center of mass and making it easier for the wave trough pressure to push it down. Through independent control of each ballast sub-chamber, the center of mass and mass distribution of the oscillating buoy can be adjusted according to the specific wave conditions through multi-point non-uniform water injection and drainage. This amplifies the heave displacement of the oscillating buoy in the waves, improving the wave energy capture efficiency, while ensuring good stability of the oscillating buoy under various sea conditions, reducing energy loss due to structural imbalance, and solving the technical problems of low wave energy capture rate and low wave energy power generation efficiency in related technologies. In addition, by combining multi-source environmental data such as wind speed and wave height, as well as the operating status of the power generation device itself, the oscillating buoy can dynamically adjust the ballast water in the upper and lower ballast chambers through the inlet and outlet valves in the ballast sub-chambers. This allows for flexible selection of ways to improve wind resistance or enhance wind energy absorption, improving the synergy between the wind turbine and the wave energy power generation device. Furthermore, due to the inclusion of wave energy storage devices, the high wave height during typhoons can be utilized. The oscillating float oscillates with the waves, generating electricity using the wave potential energy difference and storing it in the wave energy storage devices. This electricity can then be used to power units that are out of service, thus replacing traditional backup power devices (such as diesel generators). This achieves efficient synergistic utilization of wind and wave energy, while improving the continuity of power supply to units during typhoons and reducing the cost of backup power supplies and maintenance. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A schematic diagram of the structure of a floating wind and wave energy integrated power generation device provided according to an embodiment of the present invention is shown;

[0023] Figure 2 A schematic diagram of the structure of an oscillating float provided according to an embodiment of the present invention is shown;

[0024] Figure 3 The diagram illustrates the key system and typhoon adaptive algorithm structure of the control method for a floating wind and wave energy integrated power generation device provided in an embodiment of the present invention.

[0025] Figure 4 A flowchart of a control method for a floating wind and wave energy integrated power generation device according to an embodiment of the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 10. Floating substrate; 11. Floating body; 12. Tower;

[0028] 20. Wind turbine units;

[0029] 30. Wave power generation device; 31. Oscillating float; 311. Upper ballast compartment; 312. Lower ballast compartment; 313. Ballast sub-cavity; 32. Piston rod. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Among related technologies, the development of wind-wave energy combined devices is still immature. Some studies have attempted to integrate oscillating buoy-type wave energy generation devices on floating wind power platforms. However, traditional oscillating buoys do not have internal ballast chambers and cannot adjust mass distribution, which makes them poorly matched with wave cycles, unable to adapt to changes in different sea states, lacking a unified control strategy, resulting in low energy capture rate and insufficient wind-wave coordination.

[0032] Furthermore, during typhoons or storms, offshore winds often exceed the safe operating range of wind turbines. To prevent equipment damage such as blade breakage, gearbox failure, or electrical system overload, wind turbines will enter emergency shutdown mode. However, the shutdown process itself requires electrical support, including but not limited to performing pitch control, activating the yaw system, and operating control systems and sensors. Simultaneously, the ballast control system and monitoring system of the wind turbines need to operate continuously to ensure equipment safety and stability. Therefore, a reliable and continuous backup power supply is essential to ensure these systems can continue to function normally when the main power supply fails. Traditional typhoon-resistant solutions often use diesel generators as their backup power source, which suffers from high failure rates and high maintenance costs, making it difficult to provide a stable power supply guarantee for turbines in shutdown states under extreme conditions.

[0033] In order to solve the above-mentioned technical problems, the inventors, such as Figure 1 and Figure 2 As shown, this embodiment of the invention provides a floating wind and wave energy integrated power generation device. The floating wind and wave energy integrated power generation device includes a floating base 10, a wind turbine 20, and a wave energy power generation device 30. The wind turbine 20 is mounted on the floating base 10, and the wave energy power generation device 30 is mounted on the floating base 10. The wave energy power generation device 30 includes an electrically connected oscillating float 31 and a wave energy storage device. The oscillating float 31 includes an upper ballast chamber 311 and a lower ballast chamber 312. Both the upper ballast chamber 311 and the lower ballast chamber 312 include multiple ballast sub-cavities 313. Each ballast sub-cavity 313 has a water inlet and a water outlet. A water inlet valve is provided at the water inlet, and a water outlet valve is provided at the water outlet.

[0034] In this embodiment, the floating base 10 serves as the foundation platform for the floating wind-wave energy integrated power generation device, supporting the wind turbine generator and the wave energy generation device. The wind turbine generator 20 is mounted on the floating base 10 to capture wind energy for electricity production. The wave energy generation device 30 is also mounted on the floating base. The oscillating float 31 of the wave energy generation device 30 includes an upper ballast chamber 311 and a lower ballast chamber 312, each chamber containing multiple independently controllable ballast sub-cavities 313. The inlet and outlet of the ballast sub-cavities 313 are equipped with inlet valves and outlet valves, respectively, allowing for precise and dynamic adjustment of the water volume within the chambers. The wave energy storage device can store the electrical energy converted from wave energy by the oscillating float 31, ensuring a stable power supply to the control systems of the wind turbine generator 20 and the power generation device.

[0035] In this embodiment, the double-layer ballast tank configuration of the oscillating float 31 allows for flexible adjustment of the upper ballast tank 311 and the lower ballast tank 312 according to the wave period and wave height. Before the wave crest arrives, the water level in the upper ballast tank 311 can be reduced by the drain valve, causing the center of mass of the oscillating float to drop, making it easier to be lifted by the waves. Conversely, when the wave trough arrives, the upper drain valve is closed and water is appropriately added, causing the center of mass to rise, making it easier to be pressed down by the wave trough pressure. Through independent control of each ballast sub-cavity, the center of gravity position and mass distribution of the oscillating float 31 can be adjusted according to the specific wave conditions by multi-point non-uniform water injection and drainage. This amplifies the heave displacement of the oscillating float 31 in the waves, improves the wave energy capture efficiency, and ensures that the oscillating float maintains good stability under various sea conditions, reducing energy loss caused by structural imbalance and solving the shortcomings of low wind and wave energy utilization and poor coordination in related technologies.

[0036] Furthermore, by combining multi-source environmental data such as wind speed and wave height, as well as the operating status of the power generation device itself, the oscillating float 31 can dynamically adjust the ballast water in the upper ballast chamber 311 and the lower ballast chamber 312 through the inlet and outlet valves in the ballast sub-cavity 313. This allows for flexible selection to improve wind resistance or enhance wind energy absorption, thereby improving the synergy between the wind turbine 20 and the wave energy generation device 30. Moreover, due to the inclusion of wave energy storage components, the oscillating float 31 can oscillate with the waves during typhoons, generating electricity using the wave potential energy difference and storing it in the wave energy storage components. This electricity can then be used to power units in shutdown states, replacing traditional backup power devices (such as diesel generators). This achieves efficient synergistic utilization of wind and wave energy while improving the continuity of power supply during typhoons and reducing the consumable and maintenance costs of backup power supplies.

[0037] The wave energy storage device is installed on the floating base 10, and the upper ballast chamber 311 and the lower ballast chamber 312 are separated by a partition.

[0038] In this embodiment, the floating wind and wave energy integrated power generation device also includes an environmental monitoring component and a control component. The environmental monitoring component, inlet valve, and outlet valve are respectively connected to the control component via signals. The control component controls the operation of the inlet valve and outlet valve based on the monitoring results of the environmental monitoring component. The environmental monitoring component can monitor the environmental wind, waves, currents, as well as the unit's tilt angle and acceleration in real time, and transmit the signals to the control component to provide decision-making basis. This allows the control component to adaptively adjust the center of gravity position of the oscillating float 31 and the ballast water distribution according to the real-time sea conditions and unit status. This not only better matches the wave period and wave height, improving the wave energy capture efficiency, but also enables rapid response under extreme environmental conditions such as typhoons. By rapidly adjusting the ballast water, the power generation device can maintain a stable attitude, improving its typhoon resistance performance.

[0039] The control components are located inside the nacelle of the wind turbine unit 20.

[0040] In this embodiment, the environmental monitoring components include a wave meter and a current meter. The wave meter and current meter are used to monitor wave height, wave period, and ocean current direction in real time, providing crucial wave flow data for optimizing wave energy capture efficiency and adjusting turbine stability. An anemometer and wind turbine status monitoring sensors measure wind speed changes and turbine dynamics, including tilt angle and acceleration, ensuring the safe operation of the wind turbine under different wind conditions. Through the comprehensive monitoring of the above devices, the control unit can dynamically adjust the distribution of ballast water within the oscillating float based on real-time environmental information and turbine status, achieving efficient joint capture of wind and wave energy. Simultaneously, it ensures the safe and stable operation of the turbine under extreme conditions such as typhoons, reduces reliance on traditional backup power sources, and comprehensively improves the synergistic efficiency and safety of offshore wind and wave power generation.

[0041] The wave meter and current meter are mounted on the floating base 10. The anemometer and wind turbine condition monitoring sensor are mounted above the nacelle of the wind turbine 20.

[0042] like Figure 3 As shown, the floating wind and wave energy integrated power generation device also includes a yaw system and a pitch system. The yaw and pitch systems are connected to the control unit via signals. The control unit controls the operation of the yaw and pitch systems based on the monitoring results from environmental monitoring devices. The yaw and pitch systems, established with the control unit, can dynamically adjust their operating status based on real-time monitoring results from environmental monitoring devices, such as wind speed, wind direction, waves, and fluid conditions. This allows the device to flexibly respond to changes in the marine environment. The yaw system adjusts the direction of the wind turbine according to the wind direction to ensure effective wind capture, while the pitch system adjusts the blade pitch angle according to the wind speed, achieving efficient operation of the wind turbine under different wind conditions. During typhoon conditions, the control unit, based on the monitoring results from the environmental monitoring devices, controls the yaw system to align with the typhoon's direction, utilizing wave energy storage to power the yaw and pitch systems, performing rapid descent and attitude adjustment, thereby effectively enhancing the floating wind turbine's typhoon resistance and preventing damage to the unit. Through the close coordination of the yaw and pitch systems with environmental monitoring and control components, this embodiment achieves adaptive control of the device under complex sea conditions, improves wind energy capture efficiency and overall safety, and reduces the impact of typhoons on unit operation.

[0043] The yaw system is a mechanical and electrical system within the wind turbine unit 20 used to adjust the orientation of the entire nacelle (including the generator, blades, and hub). Its main function is to ensure that the wind turbine's rotor shaft aligns with the wind direction to maximize wind energy capture. The pitch system is another system within the wind turbine unit 20 used to change the blade angle (relative to the rotor shaft), primarily for controlling the wind turbine's power output and maintaining stable rotational speed.

[0044] like Figure 1 and Figure 2 As shown, the ballast sub-cavities 313 have a honeycomb hexagonal structure, with adjacent ballast sub-cavities 313 spliced ​​together. In this embodiment, the ballast sub-cavities 313 adopt a honeycomb hexagonal structure, with adjacent ballast sub-cavities 313 spliced ​​together to form a compact and uniformly distributed ballast structure. By precisely controlling the independent uniform (or non-uniform) injection / drainage of multiple points in the honeycomb hexagonal ballast sub-cavities 313, the center of gravity of the oscillating float 31 can be dynamically adjusted, allowing it to more closely follow the wave cycle changes, thereby improving the efficiency of wave energy power generation. Simultaneously, in extreme sea conditions such as typhoons, multiple ballast sub-cavities 313 of the oscillating float 31 can simultaneously inject ballast water to assist the power generation device in rapid altitude rise and fall and attitude adjustment under extreme sea conditions, enhancing its resistance to typhoons and reducing the impact of typhoons on the wind turbine 20. Furthermore, the honeycomb hexagonal structure of the ballast sub-cavities 313 avoids overall failure caused by damage to a single ballast sub-cavity 313, improving overall reliability.

[0045] like Figure 1 and Figure 2 As shown, the oscillating float 31 has a spherical structure. This spherical structure not only ensures stable oscillation of the float in waves, effectively improving wave energy conversion efficiency, but also allows the spherical oscillating float 31 to rapidly adjust its ballast water distribution during typhoons through quick water injection and drainage operations. This, combined with the overall stability adjustment of the float, significantly enhances the device's typhoon resistance under extreme sea conditions. The spherical structure also offers advantages such as uniform structure and symmetrical force distribution, better adapting to waves in different directions, resulting in more efficient wave energy capture, while also improving the overall safety and stability of the device.

[0046] like Figure 1 and Figure 2As shown, the wave energy generation device 30 includes multiple oscillating floats 31, which are arranged at intervals along the circumference of the floating base 10. The uniform distribution of the oscillating floats 31 along the circumference of the floating base 10 enables multi-point support. Simultaneously, the multiple oscillating floats 31 increase the effective area for interaction between the device and waves, allowing the oscillating floats 31 to respond more sensitively to wave motion, thereby improving wave energy capture efficiency. Because the multiple oscillating floats 31 are arranged at intervals along the circumference and work collaboratively, even when the wave direction changes, the mutual compensation of adjacent floats can maintain the stable operation of the entire device, reducing the adverse effects caused by the uncertainty of wave motion direction and enhancing the stability and adaptability of the system. Furthermore, the use of multiple oscillating floats 31 provides more ballast water adjustment points, enabling precise control of the ballast water state of each float under extreme weather conditions such as typhoons, achieving fine-tuning of the attitude and stability of the floating base 10, further improving the safety performance of the device. The arrangement of multiple oscillating floats 31 not only optimizes the utilization of wave energy, but also enhances the anti-interference capability and self-protection mechanism of the power generation device in harsh environments, achieving a dual improvement in energy utilization and safety performance.

[0047] like Figure 1 and Figure 2 As shown, the floating base 10 includes a float 11 and a tower 12. The lower end of the tower 12 is connected to the float 11. The wind turbine 20 is installed at the upper end of the tower 12. The oscillating float 31 is floatingly connected to the float 11. The wave energy storage device is installed inside the tower 12.

[0048] In this embodiment, the floating base 10 is specifically composed of a float 11 and a tower 12. The lower end of the tower 12 is stably connected to the float 11, while the upper part supports the wind turbine 20. An oscillating float 31 is floatingly connected to the float 11, and the wave energy storage component is integrated into the internal space of the tower 12. This structural design optimizes space utilization efficiency and achieves tight integration of wind and wave energy conversion hardware. The oscillating float 31 generates potential energy with the wave motion, which is then converted into electrical energy and stored in the tower 12, forming a backup power source for the wind turbine 20. This design breaks through the traditional dependence of offshore wind power devices on diesel generators or batteries, improving energy self-sufficiency. In addition, by dynamically adjusting the ballast water volume and distribution of the oscillating float 31, the overall stability and floating attitude of the device can be effectively adjusted, enabling it to respond quickly under extreme sea conditions such as typhoons and maintain a safe operating state. At the same time, it can utilize the wave energy brought by the typhoon to generate electricity efficiently, achieving the dual-mode operation goal of "power generation-typhoon resistance", which significantly improves the adaptability and economy of the device in complex marine environments.

[0049] The wave energy storage device is installed inside the tower 12, and the wave meter and current meter are installed on the floating body 11.

[0050] The power generation process and ballast water regulation process of the oscillating float 31 are further explained:

[0051] Oscillating float 31 generates electricity through oscillation: The oscillating float 31 moves up and down with the waves, driving the piston rod 32 of the hydraulic cylinder hinged to it to reciprocate, converting wave energy into hydraulic energy; the high-pressure oil, after being stabilized by an accumulator, drives the hydraulic motor to rotate, which in turn drives the generator to generate electricity. When the waves change, the environmental monitoring device will quickly identify the changes in wave height and release a signal. The control device will quickly adjust the local mass of the oscillating float 31 by opening the valves of different ballast compartments, so that the center of gravity of the oscillating float 31 tilts in accordance with the changes in wave height, making it easier to be lifted / pressed down by the waves, thereby generating a larger heave displacement and using the potential energy difference to generate electricity. The electrical energy generated by wave energy generation will be stored in a wave energy storage device located above the float 11, so as to supply power to the wind turbine 20 after shutdown.

[0052] Ballast water regulation process of oscillating float 31: Under normal power generation conditions, the ballast water regulation strategy is as described in the oscillating power generation process of oscillating float 31; when the device is in an extreme typhoon state, the control unit will open the water inlets of all ballast chambers of oscillating float 31, and seawater will quickly fill each ballast chamber from all directions to assist the wind turbine 20 to submerge quickly; when the tilt angle of one side of the wind turbine 20 is too large, the attitude adjustment of the wind turbine 20 can be quickly realized by independently controlling the mass of multiple oscillating floats 31, thereby improving the response and self-protection capabilities of the wind turbine 20 in dangerous conditions.

[0053] Furthermore, the inventors' research revealed that, unlike onshore wind turbines, typhoons pose a significant threat to the safety of offshore wind power generation equipment. Typhoon-resistant technology is a critical challenge that offshore wind power cannot avoid. Currently, most floating wind turbines cope with typhoons by shutting down to avoid the wind and deploying backup power supplies. However, these methods cannot dynamically adapt to the changing environmental loads at different stages of a typhoon, do not consider the different control requirements at different stages, and lack dynamic adaptive typhoon-resistant strategies for the different environmental characteristics throughout the entire typhoon process. This makes it difficult to fully utilize the high power generation returns in typhoon-prone areas while ensuring the safety of the turbines. The deployment of backup power supplies further increases manufacturing and maintenance costs. This means that there is currently a lack of adaptive control strategies for the entire typhoon process and low-cost emergency power solutions that balance turbine power generation performance, survivability, and economic costs.

[0054] Another embodiment of the present invention provides a control method for a floating wind and wave energy integrated power generation device, which is implemented using the aforementioned floating wind and wave energy integrated power generation device. Figure 4 As shown, the control method for a floating wind and wave energy integrated power generation device includes:

[0055] S100: Obtain the current typhoon parameters;

[0056] S200. Determine the type of area where the floating wind and wave energy integrated power generation device is located based on the current typhoon parameters.

[0057] S300 If it is determined that the area where the floating wind and wave energy integrated power generation device is located is a high wind area, then control the floating wind and wave energy integrated power generation device to start the high-efficiency power generation mode.

[0058] S400 If it is determined that the area where the floating wind and wave energy integrated power generation device is located is a typhoon zone, then control the floating wind and wave energy integrated power generation device to start the typhoon mode.

[0059] The control method for the floating wind and wave energy integrated power generation device provided in this embodiment can adaptively adjust the operating mode of the floating wind and wave energy integrated power generation device according to the environmental characteristics of different typhoon areas. Specifically, by acquiring meteorological and marine early warning data, it is determined whether the site of the floating wind and wave energy integrated power generation device is within the influence range of the typhoon path. Combined with the environmental monitoring devices integrated on the power generation device, the current typhoon parameters are obtained, and the location of the power generation device is determined to be in a high-wind area or a typhoon area based on the typhoon parameters. If it is in a high-wind area, the control method prompts the power generation device to enter a high-efficiency power generation mode. The power generation device uses the strong winds and waves brought by the typhoon to generate electricity efficiently, normally executes the pitch strategy in the power generation mode, and adjusts the ballast water of the float 11 to maintain the stability of the float 11's tilt angle. At the same time, the oscillating float 31 generates potential energy with the change of wave height (the greater the wave height, the greater the potential energy generated by oscillation). The mass distribution of the oscillating float 31 is adjusted by the non-uniform adjustment of the ballast water volume of the upper ballast chamber 311 and the lower ballast chamber 312, so as to achieve the optimal response to wave motion and enhance the wave energy power generation efficiency. If the power generation device is located in a typhoon area, the control method guides the device to activate typhoon mode. In this mode, the wind turbine 20 stops feathering, and the wave energy storage device provides power to support active yaw control against wind and ballast. The control unit actively adjusts the ballast water level of one or more oscillating floats 31 in coordination with the ballast water level of the float 11 column to adjust the float's attitude, ensuring the stability and safety of the power generation device during a typhoon. The control method of this application for the floating wind-wave energy integrated power generation device enables the device to not only effectively resist typhoons but also maximize the utilization of wind and wave energy in typhoon environments. This significantly improves the environmental adaptability and economic benefits of the power generation device, achieving dynamic response to different stages of a typhoon and ensuring continuous operation and efficient power generation in complex sea conditions.

[0060] If the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon zone, the steps to control the floating wind and wave energy integrated power generation device to activate typhoon mode include:

[0061] S410, controls wind turbine unit 20 to stop or idle;

[0062] S420: Powered by wave energy storage devices;

[0063] S430: Obtain the current wind direction and control the yaw system to yaw against the wind based on the current wind direction;

[0064] S440, Get the current wind speed V;

[0065] S450, If the current wind speed is greater than the cut-out wind speed V out And less than the design wind resistance speed V d If the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon gale zone, the floating wind and wave energy integrated power generation device will be controlled to activate the typhoon defense mode.

[0066] S460, If the current wind speed is greater than the design wind resistance speed V d If the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon eyewall danger zone, the floating wind and wave energy integrated power generation device will be controlled to activate the typhoon danger mode.

[0067] In this embodiment, when the area where the floating wind-wave energy integrated power generation device is located is determined to be a typhoon zone, the power generation device will enter typhoon mode. This process includes controlling the wind turbine 20 to stop or idle to reduce the direct impact of wind force, while utilizing wave energy storage devices to power the system, ensuring that necessary operational functions can be maintained even when the device is stopped. At this time, the power generation device precisely controls the yaw system to yaw against the wind according to the current wind direction to minimize the impact of wind load. After obtaining the current wind speed, if the wind speed V is between the cut-out wind speed V... out Designed to resist wind speed V d If the device is located in a typhoon's gale-force area, it is considered that it may experience excessive movement and tilt. Operational data is used to identify whether any movement components exceed the safety threshold. In this case, the typhoon defense mode is activated. In this mode, the ballast water distribution of the oscillating float 31 is intelligently adjusted to adapt to changing wave conditions, maintaining the steady state of the power generation device. However, if the wind speed V exceeds the design resistance wind speed V0, the device will be considered to be in a typhoon defense mode. d When the device is in the eyewall danger zone of a typhoon, and the movement and tilt angle of the power generation unit exceed the safety threshold, posing a risk of capsizing, the typhoon danger mode is triggered. At this time, the oscillating float 31 needs to accelerate the adjustment of the water level in the ballast water tank to ensure that the power generation unit quickly submerges, lowers its center of gravity, and works with the ballast water of the float 11 to adjust the attitude of the wind turbine 20, significantly enhancing its ability to resist extreme wind and waves and avoiding capsizing accidents. The hierarchical adaptive control method in this embodiment not only ensures the safety of the device in typhoon environments, but also makes full use of the wave energy brought by the typhoon for power generation, achieving a dual improvement in economic and safety benefits.

[0068] It should be noted that the cut-out wind speed V out This refers to the wind speed threshold used for safe shutdown in the design of the wind turbine unit 20. When the wind speed exceeds the cut-out wind speed, the wind turbine unit will automatically enter shutdown mode, adjusting the blades to a feathered position (close to 90°) through the pitch system to reduce the wind's impact on the blades, preventing mechanical and electrical system overload due to excessive wind speed, and ensuring equipment safety. The design withstands wind speed V. d This refers to the most extreme wind speed conditions considered during the design of the wind turbine, typically the highest wind speed that may be encountered within a 50-year or longer period. This includes wind speeds that may be brought about by extreme weather events such as typhoons and hurricanes. The design of wind turbines must ensure that their structure can withstand the loads posed by the wind speeds they are designed to withstand, without structural failure or serious damage.

[0069] The steps for controlling the floating wind and wave energy integrated power generation device to activate the typhoon defense mode include:

[0070] S451. Obtain the tilt angle α of the floating substrate 10;

[0071] S452. If the tilt angle α of the floating substrate 10 is greater than the preset tilt angle α p Then, the ballast water level of the floating base 10 and / or the oscillating float 31 is controlled to adjust the attitude.

[0072] In this embodiment, the step of controlling the floating wind and wave energy integrated power generation device to activate the typhoon defense mode includes obtaining the tilt angle α of the floating base 10. At this time, if the tilt angle α of the floating base 10 is detected to exceed the preset tilt angle α, the device will be activated. p This means that the severe conditions in the typhoon's gale zone have affected the stability of the equipment. At this point, the control system will quickly intervene and actively adjust the ballast water level in one or more oscillating floats 31. This adjustment, along with the ballast water in the support column of the float 11, will adjust the attitude of the float 11 and maintain its stability. For example, if the environmental monitoring system detects increased waves on the right side and the float 11 tilts to the left, it will open the compartment valve of the right oscillating float 31 to inject water. At the same time, it will adjust the ballast water in the right oscillating float 31 and coordinate the control until the tilt angle of the float 11 is restored. This reduces the risk of capsizing caused by the typhoon, enhances the unit's self-protection capability in the face of typhoon conditions, and ensures the overall safety of the equipment. In other embodiments not shown, the adjustment of the ballast water level can also be linked with the yaw system to further improve the unit's adaptability to changes in typhoon direction and strengthen the robustness of the overall system.

[0073] The steps for controlling the floating wind and wave energy integrated power generation device to activate the typhoon danger mode include:

[0074] S461. Obtain the tilt angle α of the floating base 10;

[0075] S462. If the tilt angle of the floating base 10 is greater than the safe tilt angle α... s Then open the inlet valves of all ballast chambers 313.

[0076] In this embodiment, the step of controlling the floating wind and wave energy integrated power generation device to activate the typhoon danger mode includes obtaining the tilt angle α of the floating base 10, and when this tilt angle is greater than the safe tilt angle α... s At this time, the power generation unit faces the extreme impact of a typhoon, with its tilt angle and movement exceeding safe limits, generating a huge overturning moment. The energy stored in the wave energy storage device will then supply power to the wind turbine 20, maintaining its yaw and ballast water valve operation even when the unit is shut down. The main control system will trigger a danger protection mode, opening the water injection valves of all ballast tanks on the oscillating float 31, rapidly filling the ballast tanks and causing it to submerge. Simultaneously, as the oscillating float 31 rapidly fills with ballast water, the center of gravity of the float 11 will lower and submerge, below the center of buoyancy, preventing the unit from overturning in dangerous conditions. This effectively resists the overturning moment brought by the typhoon, maintaining the overall stability of the unit. Furthermore, the rapid submersion of the float 11 also helps reduce the impact of wind and wave loads on the upper wind turbine structure, protecting the wind turbine 20 from damage, ensuring its survivability in extreme sea conditions, and avoiding economic losses and increased maintenance costs due to overturning or damage to the unit.

[0077] It should be noted that the safety tilt angle α s This refers to the maximum allowable tilt angle of the wind turbine under normal operating conditions. Offshore wind turbines, especially floating designs, are subject to dynamic loads such as wind, waves, and currents, which can cause them to tilt. Safety tilt angle α s This setting is designed to ensure that, under any anticipated wind, wave, and current conditions, the tilt of the wind turbine 20 will not lead to structural damage, equipment failure, or personnel safety risks. Once the tilt angle is detected to be close to or exceed the safe tilt angle α... s The control system will take measures, such as adjusting the ballast water distribution and yaw to wind, to reduce tilting and protect the unit's safety.

[0078] If the area where the floating wind and wave energy integrated power generation device is located is determined to be a high-wind area, the steps to control the floating wind and wave energy integrated power generation device to start the high-efficiency power generation mode include:

[0079] S310, Obtain wave parameters;

[0080] S320. If it is determined that the oscillating float 31 is at the crest of the wave, then control the inlet valve and the outlet valve to work, so that the center of mass of the oscillating float 31 rises.

[0081] S330. If it is determined that the oscillating float 31 is located at the trough of the wave, the inlet valve and the outlet valve are controlled to work, so that the center of mass of the oscillating float 31 drops.

[0082] In this embodiment, when the area where the floating wind and wave energy integrated power generation device is located is determined to be a high-wind zone, the power generation device will activate the high-efficiency power generation mode. First, current wave parameters are acquired to monitor sea state information in real time. As mentioned earlier, when the waves change, the environmental monitoring device will quickly identify changes in wave height and release a signal. The control device, by controlling the valves in different compartments, achieves rapid adjustment of the local mass of the float, causing the float's center of gravity to tilt in accordance with the wave height change, via the wave height H... s When the buoy 31 is at a wave crest or trough, the direction of its center of gravity adjustment is determined, and the valves of the corresponding compartments are opened to control the injection of seawater into the ballast compartments. This makes it easier for the buoy 31 to be lifted / pressed down by the waves, thereby further increasing the vertical motion of the buoy 31 relative to the floating body 11, thus generating a larger heave displacement and using the potential energy difference to generate electricity. The oscillation of the buoy 31 drives the piston rod 32 to reciprocate, driving the generator to generate electricity. The generated potential energy is converted into electrical energy to supply the wind turbine 20, thereby improving the efficiency of wave energy generation. The energy is also stored in the wave energy storage device inside the tower 12.

[0083] It should be noted that the center of mass is the center of the mass distribution of an object, and can be considered as the point where all the mass of the object is concentrated.

[0084] The steps of obtaining the current typhoon parameters and determining the type of area where the floating wind and wave energy integrated power generation device is located based on the current typhoon parameters include:

[0085] S110, Obtain the current wind speed V;

[0086] S120. If the current wind speed is greater than the rated wind speed V of the wind turbine generator set 20. rate And less than the cut-out wind speed V out If so, the area where the floating wind and wave energy integrated power generation device is located is determined to be a high-wind area;

[0087] S130. If the current wind speed is greater than the cut-out wind speed, the area where the floating wind power wave energy integrated power generation device is located is determined to be a typhoon zone.

[0088] In this embodiment, obtaining the current typhoon parameters, especially the current wind speed V, allows for the determination of the area type where the floating wind and wave energy integrated power generation device is located. When the detected current wind speed V is greater than the rated wind speed Vr of the wind turbine... rate And less than the cut-out wind speed V out This indicates that the device is located in the outer wind zone of a typhoon, where the wind force is sufficient to ensure the efficient operation of the wind turbine, and the increased wave height also provides favorable conditions for wave energy power generation. Conversely, if the current wind speed exceeds the cut-out wind speed V of the wind turbine... out，This indicates that the equipment has entered the typhoon zone, where wind speeds are too high and could damage the wind turbines. Therefore, it is necessary to activate typhoon-resistant control strategies to prioritize the safety of the equipment. This wind speed-based area type determination mechanism provides a basis for subsequent implementation of corresponding control strategies, enabling intelligent switching between power generation and safety protection, and improving the adaptability and economic efficiency of the equipment in typhoon environments.

[0089] It should be noted that the rated wind speed V rate This refers to the wind speed at which the wind turbine unit 20 is designed and its rated power is calculated and set. When the wind speed reaches the rated wind speed, the wind turbine unit will generate its maximum design output power, i.e., the rated power.

[0090] This invention proposes a control method for a floating wind-wave energy integrated power generation device with typhoon adaptive function. It overcomes the shortcomings of traditional typhoon-resistant schemes that cannot utilize typhoon power generation benefits. By using information such as typhoon warning information, environmental information identified by sensors, and the status of the wind turbine 20, different modes are designed for the high-wind area and typhoon area during the entire typhoon process. These include a high-efficiency power generation mode for the high-wind area, a typhoon defense mode for the typhoon area, and a typhoon danger mode. By adjusting the ballast water level of the oscillating float 31, the typhoon resistance safety of the wind turbine 20 is ensured. At the same time, by changing the mass distribution of ballast water inside the oscillating float 31, the wave potential energy brought by the high-wind area of ​​the typhoon is utilized to the maximum extent, achieving a balance between safety and benefits in typhoon environments.

[0091] The floating wind and wave energy integrated power generation device and its control method provided by this invention have the following beneficial effects:

[0092] (1) A floating wind power wave energy integrated power generation device based on a honeycomb oscillating float 31 with adjustable ballast chamber water level is proposed: wave energy power generation is achieved by adding an oscillating float 31 to the float body 11. The oscillating float 31 is set as a ballast structure consisting of an upper ballast chamber 311, a lower ballast chamber 312, and a honeycomb ballast sub-cavity 313. Through local dynamic adjustment of the ballast water in multiple chambers, the center of gravity of the float is adapted to the wave height period, solving the problem of low wave energy utilization efficiency. Furthermore, under typhoon conditions, the oscillating float 31 can simultaneously and rapidly fill and drain multiple chambers, increasing the rate of submersion and stability adjustment of the unit, maintaining the stability of the wind turbine 20's motion attitude, and improving the safety of the wind turbine 20 in typhoon conditions.

[0093] (2) Utilizing typhoon wave energy for efficient power generation, replacing traditional typhoon backup power devices: The wave energy storage component in the oscillating float wave energy power generation device described in this invention can replace traditional typhoon backup power (such as diesel generators and batteries), utilizing the characteristics of high waves and abundant wave energy in the typhoon environment for power generation and energy storage, providing a continuous and stable power supply for the unit under extreme operating conditions. This solution provides an innovative typhoon backup power supply scheme based on wave energy power generation, overcoming the problems of uninterrupted power generation, large material consumption, and high operation and maintenance costs of traditional power sources. While achieving high reliability in typhoon resistance, it saves the high cost of backup power.

[0094] (3) Typhoon adaptive control strategy considering the dynamic changes of ballast tank water level, taking into account both typhoon safety and power generation benefits: This invention proposes a control method for a floating wind power wave energy integrated power generation device with typhoon adaptive function. By using typhoon warning information, environmental information identified by sensors, and unit status (tilt angle, acceleration, etc.), it sets up a high-efficiency power generation mode for high wind areas, a typhoon defense mode for typhoon areas, and a typhoon danger mode. By adjusting the ballast water level of the oscillating float 31, the typhoon safety of the wind turbine 20 is ensured. At the same time, by changing the mass distribution of ballast water inside the oscillating float 31, the wave potential energy brought by the typhoon high wind area is utilized to the maximum extent, so as to achieve both safety and benefits in the typhoon environment and overcome the defect of "no power generation during typhoon resistance" in related technologies.

[0095] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0096] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0097] In the description of this invention, it should be understood that "a plurality of" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing the invention and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0098] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0099] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0100] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A floating wind and wave energy integrated power generation device, characterized in that, The floating wind and wave energy integrated power generation device includes: Floating substrate (10); Wind turbine generator (20) is mounted on the floating base (10); A wave energy power generation device (30) is installed on the floating base (10). The wave energy power generation device (30) includes an electrically connected oscillating float (31) and a wave energy storage device. The oscillating float (31) includes an upper ballast chamber (311) and a lower ballast chamber (312). Both the upper ballast chamber (311) and the lower ballast chamber (312) include multiple ballast sub-cavities (313). Each ballast sub-cavity (313) has a water inlet and a water outlet. A water inlet valve is provided at the water inlet, and a water outlet valve is provided at the water outlet.

2. The floating wind and wave energy integrated power generation device according to claim 1, characterized in that, The floating wind and wave energy integrated power generation device also includes an environmental monitoring device and a control device. The environmental monitoring device, the inlet valve, and the outlet valve are respectively connected to the control device via signals. The control device controls the operation of the inlet valve and the outlet valve based on the monitoring results of the environmental monitoring device.

3. The floating wind and wave energy integrated power generation device according to claim 2, characterized in that, The environmental monitoring equipment includes a wave meter and a current meter; and / or, The environmental monitoring equipment includes an anemometer and a wind turbine condition monitoring sensor.

4. The floating wind and wave energy integrated power generation device according to claim 2, characterized in that, The floating wind and wave energy integrated power generation device also includes a yaw system and a pitch system. The yaw system and the pitch system are respectively connected to the control unit via signals. The control unit controls the operation of the yaw system and the pitch system based on the monitoring results of the environmental monitoring unit.

5. The floating wind and wave energy integrated power generation device according to any one of claims 1 to 4, characterized in that, The ballast sub-cavity (313) has a honeycomb hexagonal structure, and two adjacent ballast sub-cavities (313) are spliced ​​together.

6. The floating wind and wave energy integrated power generation device according to any one of claims 1 to 4, characterized in that, The oscillating float (31) has a spherical structure.

7. The floating wind and wave energy integrated power generation device according to any one of claims 1 to 4, characterized in that, The wave energy generation device (30) includes a plurality of the oscillating floats (31) arranged at circumferential intervals along the floating base (10).

8. The floating wind and wave energy integrated power generation device according to any one of claims 1 to 4, characterized in that, The floating base (10) includes a float (11) and a tower (12). The lower end of the tower (12) is connected to the float (11). The wind turbine (20) is located at the upper end of the tower (12). The oscillating float (31) is floatingly connected to the float (11). The wave energy storage device is located inside the tower (12).

9. A control method for a floating wind and wave energy integrated power generation device, characterized in that, The control method of the floating wind and wave energy integrated power generation device is implemented using any one of the floating wind and wave energy integrated power generation devices according to claims 1 to 8, and the control method of the floating wind and wave energy integrated power generation device includes: Get the current typhoon parameters; Based on the current typhoon parameters, determine the type of area where the floating wind and wave energy integrated power generation device is located; If it is determined that the area where the floating wind and wave energy integrated power generation device is located is a high-wind area, then the floating wind and wave energy integrated power generation device is controlled to start the high-efficiency power generation mode. If it is determined that the area where the floating wind and wave energy integrated power generation device is located is a typhoon zone, then the floating wind and wave energy integrated power generation device is controlled to activate the typhoon mode.

10. The control method for the floating wind and wave energy integrated power generation device according to claim 9, characterized in that, If the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon zone, the steps for controlling the floating wind and wave energy integrated power generation device to activate typhoon mode include: Control the wind turbine unit (20) to stop or idle; Power is supplied using the wave energy storage device. Obtain the current wind direction and control the yaw system to yaw against the wind based on the current wind direction; Get the current wind speed; If the current wind speed is greater than the cut-out wind speed but less than the design resistance wind speed, then the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon gale zone, and the floating wind and wave energy integrated power generation device is controlled to activate the typhoon defense mode. If the current wind speed is greater than the design wind resistance speed, the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon eyewall danger zone, and the floating wind and wave energy integrated power generation device is controlled to activate the typhoon danger mode.

11. The control method for the floating wind and wave energy integrated power generation device according to claim 10, characterized in that, The steps for controlling the floating wind and wave energy integrated power generation device to activate the typhoon defense mode include: Obtain the tilt angle of the floating substrate (10); If the tilt angle of the floating substrate (10) is greater than the preset tilt angle, the ballast water level of the floating substrate (10) and / or the oscillating float (31) is controlled to adjust the attitude.

12. The control method for the floating wind and wave energy integrated power generation device according to claim 10, characterized in that, The steps for controlling the floating wind and wave energy integrated power generation device to activate the typhoon danger mode include: Obtain the tilt angle of the floating substrate (10); If the tilt angle of the floating substrate (10) is greater than the safe tilt angle, then open the inlet valves of all ballast sub-cavities (313).

13. The control method for the floating wind and wave energy integrated power generation device according to claim 9, characterized in that, If the area where the floating wind and wave energy integrated power generation device is located is determined to be a high-wind area, the steps for controlling the floating wind and wave energy integrated power generation device to start the high-efficiency power generation mode include: Obtain wave parameters; If it is determined that the oscillating float (31) is at the crest of the wave, then the water inlet valve and the water outlet valve are controlled to work, so that the center of mass of the oscillating float (31) rises; If it is determined that the oscillating float (31) is located at the trough, the water inlet valve and the water outlet valve are controlled to work, so that the center of mass of the oscillating float (31) drops.

14. The control method for the floating wind and wave energy integrated power generation device according to claim 9, characterized in that, The steps of obtaining the current typhoon parameters and determining the type of the area where the floating wind and wave energy integrated power generation device is located based on the current typhoon parameters include: Get the current wind speed; If the current wind speed is greater than the rated wind speed of the wind turbine (20) and less than the cut-out wind speed, then the type of the area where the floating wind power wave energy integrated power generation device is located is determined to be the high wind zone. If the current wind speed is greater than the cut-out wind speed, then the area where the floating wind and wave energy integrated power generation device is located is determined to be a typhoon zone.

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