Efficient magnetic suspension tidal current energy power generation device
Through the multi-stage magnetic levitation system and the tidal energy power generation device with flexible blade structure, the friction loss and blade fatigue fracture problems of traditional tidal energy power generation devices are solved, efficient energy capture and marine ecological protection are achieved, and power generation efficiency and device life are improved.
Patent Information
- Application Number
- CN202510530366.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-08-15
AI Technical Summary
Traditional trendy energy power generation devices have problems such as large friction losses in mechanical bearings, easy fatigue and fracture of blades, and current-gathering structure affecting the ecology, resulting in low energy conversion efficiency and high operation and maintenance costs, which are not conducive to marine ecological protection.
The multi-stage magnetic levitation system and flexible blade structure are adopted, combined with intelligent monitoring and protection systems, and stable suspension without contact is achieved, the magnetic levitation force and blade angle are adjusted in real time, the current energy capture is optimized, and a streamlined flow convergence cover is set to improve energy capture efficiency.
It significantly improves power generation efficiency, reduces operation and maintenance costs, protects the marine ecology, extends the service life of the device, and maintains efficient energy capture in complex marine environments.
Smart Images

Figure CN120487480A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tidal energy power generation, and in particular to a high-efficiency magnetic levitation tidal energy power generation device. Background Art
[0002] Tides are caused by the gravitational pull of the moon and the sun, forming periodic seawater flows, namely high tides and low tides, forming high-speed water flows in narrow straits, bays or between islands, which can reach 2-5 meters per second. The kinetic energy of these flows is the source of tidal energy. Through underwater turbines or oscillating hydrofoil devices, the kinetic energy of the water is converted into mechanical energy, which then drives the generator to generate electricity.
[0003] Traditional tidal energy generators have the following defects: 1. Large friction loss in mechanical bearings: Current mainstream tidal energy power generation devices generally use mechanical bearings to support the rotor, resulting in friction losses accounting for 12%-18%, making the energy conversion efficiency less than 65%; 2. Blades are prone to fatigue fracture: Traditional rigid blades are prone to structural fatigue fracture when the flow rate is >3m / s, and the average annual maintenance frequency is 4-6 times. The operation and maintenance costs account for more than 35% of the power generation income; 3. The flow-gathering structure affects the ecology: The fixed flow-gathering structure causes local flow velocity distortion, resulting in a 27% increase in the migration rate of benthic organisms in the surrounding sea area, which is not conducive to marine ecological protection.
[0004] To this end, a high-efficiency magnetic levitation tidal energy power generation device is proposed. It adopts an independently developed multi-stage magnetic levitation system to reduce mechanical energy loss and ensure that the suspension gap is maintained at the micron level when the rotor rotates at high speed, thereby greatly reducing the rotational resistance torque. The power generation efficiency is significantly improved compared with traditional mechanical bearing devices. The introduction of a combined structure of flexible blades and adjustable flux collectors enables the device to always capture tidal energy in the best state under complex and changeable ocean tidal environments. The power generation device can be intelligently monitored and protected, and the magnetic levitation parameters and blade angles can be changed in the event of faults or abnormalities to protect the service life of the device. A streamlined flux collector is provided to optimize the incident direction and speed of the tidal current by adjusting its own angle, thereby improving the tidal energy capture efficiency of the device. Summary of the Invention
[0005] The present invention provides a high-efficiency magnetic levitation tidal energy power generation device, which solves the problems raised in the above-mentioned background technology. It can achieve contactless stable suspension to reduce mechanical energy loss, can adjust the magnetic levitation force in real time to ensure high-precision suspension and stable rotation of the rotor, and can adjust the flexible blades so that the blades can capture tidal energy in an optimal state. It can collect parameters such as rotation speed, suspension state, water flow speed and direction, equipment temperature, etc. in real time, and adjust to a risk avoidance state in the event of a fault or abnormality, thereby increasing the service life of the device.
[0006] The present invention solves the above-mentioned technical problems with the following solution: a high-efficiency magnetic levitation tidal energy power generation device, comprising a multi-stage magnetic levitation system, an adaptive tidal current capture structure, an underwater generator, an intelligent monitoring and protection system, and an integrated unit. The multi-stage magnetic levitation system comprises a plurality of radial magnetic bearings and thrust magnetic bearings, and an integrated unit. The magnetic bearings comprise a stator and a rotor, the rotor being wound with a coil connected to the integrated unit. The coil generates a magnetic field when energized. The integrated unit is provided with a vibration monitoring module and an electronic control module.
[0007] The adaptive tidal current capture structure includes a flow collector, a turbine cylinder, flexible blades, a flow sensor and a drive mechanism. The stator is fixedly connected to the flow collector, the turbine cylinder is equipped with a transmission bracket, and the flexible blades include an SMA grid alloy skeleton and a carbon fiber-silicone composite layer skin.
[0008] The driving mechanism includes a device base, a load-bearing bracket, and an equipment box. The flow sensor is installed on the device base. The load-bearing bracket is fixedly installed with a load-bearing rod. The device base and the equipment box are provided with a sealed cavity. The sealed cavity is installed with a device power supply, a No. 1 brake stepper motor, and a No. 2 brake stepper motor;
[0009] The intelligent monitoring and protection system includes a sensor network, a data acquisition and processing module, a communication module, and a control center. The sensor network is distributed throughout various key parts of the device, and collects device rotation speed, suspension status, water flow speed and direction, and equipment temperature parameters in real time. The parameter data is transmitted to the data acquisition and processing module through the communication module for preliminary processing and analysis. The control center can adjust the device's control module.
[0010] On the basis of the above technical solution, the present invention can also be improved as follows.
[0011] Furthermore, the focusing cover and the turbine cylinder have magnetic levitation gaps, and the turbine cylinder is fixedly installed with a waterproof shell, which wraps the rotor, coil, and integrated unit. The rotor, coil, and integrated unit are encapsulated in the waterproof shell, which can effectively prevent water and moisture from invading the interior, thereby ensuring the stability and reliability of the equipment. The magnetic levitation gap can effectively prevent mechanical wear.
[0012] Furthermore, the SMA mesh alloy skeleton in the flexible blade can be deformed by triggering an electric pulse to achieve unpowered bending adjustment.
[0013] Furthermore, the base of the device is provided with anchor holes, which can be installed on the seabed through ground anchors.
[0014] Furthermore, the device base is rotatably connected to the load-bearing bracket through a waterproof shell, and the load-bearing shaft is rotatably connected to the equipment box through the waterproof shell, so that the load-bearing bracket can rotate stably on the top of the device base.
[0015] Furthermore, three flexible blades are evenly installed on the inner wall of the turbine cylinder.
[0016] Furthermore, the transmission bracket may be rigidly connected to the driving end of the generator via a coupling, so that mechanical energy is transmitted to the generator.
[0017] Furthermore, the load-bearing rod is rotatably connected to the device base, the device base is connected to the equipment box, and the connecting channel can be used to connect the wire.
[0018] Furthermore, the load-bearing rod and the driving end of the No. 1 brake stepper motor are fixedly installed with a No. 1 receiving gear, and the No. 1 receiving gear on both sides are meshed and connected. The load-bearing bracket is fixedly connected with a load-bearing shaft, and the load-bearing shaft and the driving end of the No. 2 brake stepper motor are fixedly installed with a No. 2 receiving gear, and the No. 2 receiving gear on both sides are meshed and connected.
[0019] The beneficial effects of the present invention are as follows: the present invention provides a high-efficiency magnetic levitation tidal energy power generation device, which has the following advantages:
[0020] 1. Abandoning traditional mechanical bearings, the independently developed multi-stage magnetic suspension system is adopted, which uses electromagnetic force to achieve contactless and stable suspension of the rotor in multiple degrees of freedom, reducing mechanical energy loss;
[0021] 2. By optimizing the magnetic circuit design and precise control algorithms, the suspension gap can be maintained at the micron level when the rotor rotates at high speed, and the fluctuation amplitude of the magnetic suspension force with the speed change can be controlled within a very small range, thereby greatly reducing the rotational resistance torque and significantly improving the power generation efficiency compared to traditional mechanical bearing devices;
[0022] 3. The flexible blades and adjustable focus hood are combined to automatically change their bending angle and expansion area under different tidal currents, allowing the device to capture tidal energy at the best state in complex and changing ocean tidal conditions. The energy capture efficiency can be maintained at a high level under various working conditions.
[0023] 4. It can intelligently monitor and protect the power generation device, and is composed of a sensor network, a data acquisition and processing module, a communication module, a control center, and an actuator. The sensor network is distributed throughout the key parts of the device, collecting real-time parameters such as rotation speed, suspension state, water flow speed and direction, and equipment temperature, and transmits the data to the data acquisition and processing module for preliminary processing and analysis. In the event of a fault or abnormality, the magnetic suspension parameters and blade angle are changed to protect the service life of the device.
[0024] 5. The streamlined focusing hood can optimize the incident direction and speed of the tidal current by adjusting its own angle, thereby improving the tidal energy capture efficiency of the device.
[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0027] Figure 1 A three-dimensional rendering of a focusing cover in a high-efficiency magnetic levitation tidal energy power generation device provided by one embodiment of the present invention;
[0028] Figure 2 A schematic structural diagram of a focusing cover in a high-efficiency magnetic levitation tidal energy power generation device provided by one embodiment of the present invention;
[0029] Figure 3 A schematic structural diagram of a turbine drum in a high-efficiency magnetic levitation tidal energy power generation device provided by one embodiment of the present invention;
[0030] Figure 4 A schematic structural diagram of a focusing cover in a high-efficiency magnetic levitation tidal energy power generation device provided by one embodiment of the present invention from a front view angle;
[0031] Figure 5 A schematic structural diagram of a high-efficiency magnetic levitation tidal energy power generation device provided by one embodiment of the present invention;
[0032] Figure 6 This is a front view of a high-efficiency magnetic levitation tidal energy power generation device provided by one embodiment of the present invention.
[0033] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0034] 1. Stator; 2. Rotor; 3. Coil; 4. Integrated unit; 5. Focusing cover; 6. Turbine cylinder; 7. Magnetic levitation gap; 8. Waterproof shell; 9. Flexible blades; 10. Device base; 11. Load-bearing bracket; 12. Equipment box; 13. Load-bearing rod; 14. Sealed cavity; 15. Equipment power supply; 16. No. 1 brake stepper motor; 17. No. 2 brake stepper motor; 18. No. 1 receiving gear; 19. Load-bearing shaft; 20. No. 2 receiving gear; 21. Flow sensor; 22. Transmission bracket. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-6The principles and features of the present invention are described, and the examples given are only for the purpose of explaining the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in a very simplified form and are not in exact proportions, and are only used for the purpose of conveniently and clearly assisting in illustrating the embodiments of the present invention.
[0036] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0038] like Figure 1-6 As shown, the present invention provides a high-efficiency magnetic levitation tidal energy power generation device, including a multi-stage magnetic levitation system, an adaptive tidal current capture structure, an underwater generator, an intelligent monitoring and protection system, and an integrated unit 4. The multi-stage magnetic levitation system includes multiple radial magnetic bearings and thrust magnetic bearings, and the integrated unit 4. The magnetic bearing includes a stator 1 and a rotor 2. The rotor 2 is wound with a coil 3, and the coil 3 is connected to the integrated unit 4. When the coil 3 is energized, a magnetic field is generated. The integrated unit 4 is provided with a vibration monitoring module and an electronic control module.
[0039] The adaptive tidal current capture structure includes a focusing cover 5, a turbine cylinder 6, flexible blades 9, a flow sensor 21 and a drive mechanism. The stator 1 is fixedly connected to the focusing cover 5, the turbine cylinder 6 is equipped with a transmission bracket 22, and the flexible blades 9 include an SMA mesh alloy skeleton and a carbon fiber-silicone composite layer skin.
[0040] The drive mechanism includes a device base 10, a load-bearing bracket 11, and an equipment box 12. The flow sensor 21 is installed on the device base 10. The load-bearing bracket 11 is fixedly installed with a load-bearing rod 13. The device base 10 and the equipment box 12 are provided with a sealed cavity 14. The sealed cavity 14 is installed with a device power supply 15, a No. 1 brake stepper motor 16, and a No. 2 brake stepper motor 17;
[0041] The intelligent monitoring and protection system includes a sensor network, a data acquisition and processing module, a communication module, and a control center. The sensor network is spread across all key parts of the device, collecting real-time data on the device's rotational speed, suspension status, water flow speed and direction, and equipment temperature parameters. The parameter data is transmitted to the data acquisition and processing module through the communication module for preliminary processing and analysis. The control center can adjust the device's control module.
[0042] Preferably, a magnetic levitation gap 7 is left between the focusing cover 5 and the turbine cylinder 6 , and a waterproof shell 8 is fixedly installed on the turbine cylinder 6 , which wraps the rotor 2 , the coil 3 , and the integrated unit 4 .
[0043] Preferably, the SMA mesh alloy skeleton in the flexible blade 9 can be deformed by triggering an electric pulse to achieve unpowered bending adjustment.
[0044] Preferably, the device base 10 is provided with anchor holes, and can be installed on the seabed through ground anchors.
[0045] Preferably, the device base 10 is rotatably connected to the load-bearing bracket 11 through a waterproof shell, and the load-bearing shaft 19 is rotatably connected to the equipment box 12 through the waterproof shell.
[0046] Preferably, three flexible blades 9 are evenly installed on the inner wall of the turbine cylinder 6 .
[0047] Preferably, the transmission bracket 22 can be rigidly connected to the driving end of the generator through a coupling, so that mechanical energy is transmitted to the generator.
[0048] Preferably, the load-bearing rod 13 is rotatably connected to the device base 10 , and the device base 10 is connected to the equipment box 12 .
[0049] Preferably, the load-bearing rod 13 and the driving end of the No. 1 brake stepper motor 16 are fixedly installed with a No. 1 receiving gear 18, and the No. 1 receiving gear 18 on both sides are meshed and connected. The load-bearing bracket 11 is fixedly connected with a load-bearing shaft 19, and the load-bearing shaft 19 and the driving end of the No. 2 brake stepper motor 17 are fixedly installed with a No. 2 receiving gear 20, and the No. 2 receiving gear 20 on both sides are meshed and connected.
[0050] The specific working principle and method of use of the present invention are as follows:
[0051] S1: Daily Use: When the tidal current flows through the device, the flow sensor 21 monitors the flow rate. The flexible blades 9 and the flow collector 5 of the adaptive tidal current capture structure first guide and rectify the tidal current, so that the tidal current hits the flexible blades 9 at the optimal direction and speed, driving the rotor 2 connected to the flexible blades 9 and the flow collector 5 to rotate. The rotor 2 is stably suspended without contact through a multi-stage magnetic suspension system. Its rotational motion is transmitted to the generator through the transmission bracket 22 and the coupling, driving the generator rotor to rotate at high speed, thereby converting mechanical energy into electrical energy and outputting it to the power grid;
[0052] S2: The magnetic levitation system adjusts according to the tidal current: The integrated unit 4 precisely controls the current in the coil 3, enabling precise adjustment of the levitation force of the rotor 2. The multi-stage magnetic levitation design enables the various magnetic bearings to work together under different operating conditions, ensuring that the rotor 2 always maintains a stable levitation state in multiple degrees of freedom. Even when the rotor 2 load fluctuates significantly due to tidal shocks, the magnetic levitation force can be adjusted through rapid response, ensuring high-precision levitation and stable rotation of the rotor 2, thereby providing stable power input to the generator and improving power generation efficiency and power quality.
[0053] S3: Adaptive tidal capture structure adjustment: The SMA mesh alloy skeleton in the flexible blade 9 can be deformed by electric pulse triggering to achieve unpowered bending adjustment, so that it can automatically change the shape and expansion area under different tidal intensities. Starting the No. 1 brake stepper motor 16 can drive the load-bearing rod 13 to rotate through the No. 1 receiving gear 18, so that the load-bearing bracket 11 can rotate on the top of the equipment power supply 15, thereby adjusting the axial angle of the condenser 5. Starting the No. 2 brake stepper motor 17 can drive the load-bearing shaft 19 to rotate through the No. 2 receiving gear 20, so that the condenser 5 can adjust the tidal information in real time. Angle, to ensure that the tide hits the flexible blades 9 in the optimal direction. When the tide is weak, the flexible blades 9 are fully unfolded to increase the force-bearing area. At the same time, the focus cover 5 is adjusted to a suitable angle to converge and guide the scattered tide to the flexible blades 9, so that the device can efficiently capture the tide energy and start power generation even at low flow rates. As the tide strengthens, the blades are contracted and adjusted to avoid damage due to excessive force. At the same time, the focus cover 5 further optimizes the incident angle of the tide, ensuring that the device is always in a high-efficiency energy capture state, effectively improving the adaptability and energy conversion efficiency of the device under different tide conditions;
[0054] S4: Monitoring and emergency protection: The underwater generator collects the rotation speed in real time, the flow sensor 21 detects the water flow velocity, and transmits the data to the intelligent monitoring and protection system for preliminary processing and analysis. The processed data is uploaded to the shore-based control center through the communication module. The control center can use big data analysis and artificial intelligence algorithms to comprehensively evaluate the operating status of the device and predict faults. Once a potential fault or abnormal situation is found, the control center immediately issues instructions and makes corresponding adjustments to the device, increasing the magnetic levitation force between the focus cover 5 and the turbine barrel 6 to prevent the device from being damaged by impact, adjusting the flexible blades 9 to the minimum, and allowing the device to quickly enter the safe operation mode, thereby effectively avoiding equipment damage, ensuring stable and reliable operation in harsh marine environments, and significantly improving the availability and service life of the equipment.
[0055] It should be noted that, in this document, relational terms such as first and second are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Matters not described in detail in this specification are well known to those skilled in the art.
[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.
Claims
1. A high-efficiency magnetic levitation tidal current energy power generation device, comprising a multi-stage magnetic levitation system, an adaptive tidal current capture structure, an underwater generator, an intelligent monitoring and protection system, and an integrated unit (4), characterized in that: The multi-stage magnetic suspension system comprises a plurality of radial magnetic bearings and thrust magnetic bearings, and an integrated unit (4); the magnetic bearings comprise a stator (1) and a rotor (2); the rotor (2) is wound with a coil (3); the coil (3) is connected to the integrated unit (4); the coil (3) generates a magnetic field when energized; and the integrated unit (4) is provided with a vibration monitoring module and an electric control module; The adaptive tidal current capture structure comprises a focusing cover (5), a turbine cylinder (6), flexible blades (9), a flow sensor (21) and a driving mechanism, wherein the stator (1) is fixedly connected to the focusing cover (5), the turbine cylinder (6) is provided with a transmission bracket (22), and the flexible blades (9) comprise an SMA mesh alloy skeleton and a carbon fiber-silicone composite layer skin; The driving mechanism comprises a device base (10), a load-bearing bracket (11), and an equipment box (12); the flow sensor (21) is mounted on the device base (10); the load-bearing bracket (11) is fixedly mounted with a load-bearing rod (13); the device base (10) and the equipment box (12) are provided with a sealed cavity (14); the sealed cavity (14) is equipped with a device power supply (15), a No. 1 brake stepping motor (16), and a No. 2 brake stepping motor (17); The intelligent monitoring and protection system includes a sensor network, a data acquisition and processing module, a communication module, and a control center. The sensor network is distributed throughout various key parts of the device, and collects device rotation speed, suspension status, water flow speed and direction, and equipment temperature parameters in real time. The parameter data is transmitted to the data acquisition and processing module through the communication module for preliminary processing and analysis. The control center can adjust the device's control module. The steps include: S1: Daily use: When the tidal current flows through the device, the flow sensor (21) monitors the flow rate, and the flexible blades (9) and the focusing cover (5) of the adaptive tidal current capture structure first guide and rectify the tidal current, so that the tidal current hits the flexible blades (9) in the optimal direction and speed, driving the rotor (2) connected to the flexible blades (9) and the focusing cover (5) to rotate. The rotor (2) is stably suspended without contact through a multi-stage magnetic suspension system, and its rotational motion is transmitted to the generator through the transmission bracket (22) and the coupling; S2: The magnetic suspension system is adjusted according to the tide: the current in the coil (3) is precisely controlled by the integrated unit (4), so that the precise adjustment of the suspension force of the rotor (2) can be achieved. The multi-stage magnetic suspension design enables the various magnetic bearings to work together under different working conditions, ensuring that the rotor (2) always maintains a stable suspension state in multiple degrees of freedom. Even when the load of the rotor (2) fluctuates greatly due to the impact of the tide, the magnetic suspension force can be adjusted through rapid response to ensure high-precision suspension and stable rotation of the rotor (2); S3: Adaptive tidal current capture structure adjustment: The SMA mesh alloy skeleton in the flexible blade (9) can be deformed by electric pulse triggering to achieve unpowered bending adjustment, so that it can automatically change the shape and expansion area under different tidal current intensities. When the No. 1 brake stepper motor (16) is started, the No. 1 receiving gear (18) can be used to drive the load-bearing rod (13) to rotate, so that the load-bearing bracket (11) can be rotated on the top of the equipment power supply (15), thereby adjusting the axial angle of the condenser (5). When the No. 2 brake stepper motor (17) is started, the No. 2 receiving gear (20) can be used to drive the load-bearing shaft (19) to rotate, so that the condenser (5) can adjust the angle according to the real-time tidal current information, ensuring that the tidal current impacts the flexible blade (9) in the optimal direction. S4: Monitoring and emergency protection: The underwater generator collects the rotation speed in real time, and the flow sensor (21) detects the water flow speed, and transmits the data to the intelligent monitoring and protection system for preliminary processing and analysis. The processed data is uploaded to the shore-based control center through the communication module. The control center can use big data analysis and artificial intelligence algorithms to conduct a comprehensive assessment of the device's operating status and fault prediction. Once a potential fault or abnormal situation is found, the control center immediately issues instructions and makes corresponding adjustments to the device, increasing the magnetic levitation force between the condenser (5) and the turbine cylinder (6) to prevent the device from being damaged by impact, and adjusting the flexible blades (9) to a minimum.
2. A high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: A magnetic suspension gap (7) is left between the focusing cover (5) and the turbine cylinder (6); a waterproof shell (8) is fixedly installed on the turbine cylinder (6); and the waterproof shell (8) encloses the rotor (2), the coil (3), and the integrated unit (4).
3. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The SMA mesh alloy skeleton in the flexible blade (9) can be deformed by triggering an electric pulse, thereby achieving unpowered bending adjustment.
4. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The device base (10) is provided with anchor holes and can be installed on the seabed via ground anchors.
5. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The device base (10) is rotatably connected to the load-bearing bracket (11) through a waterproof shell, and the load-bearing shaft (19) is rotatably connected to the equipment box (12) through the waterproof shell.
6. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The flexible blades (9) are provided with three blades evenly mounted on the inner wall of the turbine cylinder (6).
7. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The transmission bracket (22) can be rigidly connected to the driving end of the generator through a coupling, so that mechanical energy is transmitted to the generator.
8. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The load-bearing rod (13) is rotatably connected to the device base (10), and the device base (10) is communicated with the equipment box (12).
9. The high-efficiency magnetic levitation tidal energy power generation device according to claim 1, characterized in that: The load-bearing rod (13) and the driving end of the No. 1 brake stepping motor (16) are both fixedly mounted with a No. 1 receiving gear (18), and the No. 1 receiving gear (18) on both sides are meshed and connected. The load-bearing bracket (11) is fixedly connected with a load-bearing shaft (19), and the load-bearing shaft (19) and the driving end of the No. 2 brake stepping motor (17) are fixedly mounted with a No. 2 receiving gear (20), and the No. 2 receiving gear (20) on both sides are meshed and connected.