Multi-energy power generation device integrating wave energy and ocean current energy

Abstract

The invention discloses a multi-energy power generation device integrating wave energy and ocean current energy. The multi-energy power generation device comprises a buoyancy platform, a wave energy collecting system, an ocean current energy collecting system and a power generation mechanism. Wherein the power generation mechanism is arranged in the buoyancy platform and used for converting ocean current energy and wave energy into electric energy; the wave energy collecting system is arranged above the buoyancy platform and used for collecting wave energy and transmitting the wave energy to the power generation mechanism for power generation. And the ocean current energy collecting system is arranged below the buoyancy platform and used for collecting ocean current energy and transmitting the ocean current energy to the power generation mechanism for power generation, so that the power generation stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine water power generation, and in particular to a multi-energy power generation device integrating wave energy and ocean current energy. Background Art

[0002] With the growth of global energy demand and the emphasis on environmental protection, marine energy has received widespread attention as a clean and renewable energy source. In particular, wave energy and ocean current energy have become important directions for marine energy development due to their abundance and predictability. However, the complexity and variability of the marine environment, especially the frequent occurrence of extreme weather, have put forward higher requirements on the stability and safety of marine energy equipment. At present, the means of marine energy development are basically to use a single energy source for energy conversion, which cannot effectively develop energy. Furthermore, existing marine energy development devices are often set up in fixed areas for energy collection, and cannot adapt to changes in the marine environment, resulting in a very high breakage rate of the device. Summary of the invention

[0003] In order to solve the above technical problems, the present invention discloses a multi-energy power generation device integrating wave energy and ocean current energy, which is used to improve power generation stability.

[0004] In order to achieve the above-mentioned purpose, the present invention discloses a multi-energy power generation device integrating wave energy and ocean current energy, comprising: a buoyancy platform, a wave energy collection system, an ocean current energy collection system and a power generation mechanism;

[0005] Wherein, the power generation mechanism is arranged in the buoyancy platform and is used to convert ocean current energy and wave energy into electrical energy;

[0006] The wave energy collection system is arranged above the buoyancy platform, and is used to collect wave energy and transmit the wave energy to the power generation mechanism for power generation;

[0007] The ocean current energy collection system is arranged below the buoyancy platform, and is used for collecting ocean current energy and transferring the ocean current energy to the power generation mechanism for generating electricity.

[0008] The present invention discloses a multi-energy power generation device that integrates wave energy and ocean current energy. First, a wave energy collection system that can be used to collect wave energy and an ocean current energy collection system that can be used to collect ocean current energy are set. The wave energy collection system and the ocean current energy collection system are both connected to a power generation mechanism set on the buoyancy platform, so that the power generation mechanism effectively utilizes wave and ocean current energy to generate electricity, thereby ensuring a stable supply of energy.

[0009] As a preferred example, the wave energy collection system includes a float, a wave energy transmission shaft and a first locking mechanism; wherein, the lower end of the wave energy transmission shaft passes through the buoyancy platform and is connected to the power generation mechanism; the upper end of the wave energy transmission shaft is connected to the float; the first locking mechanism is connected to the lower end of the wave energy transmission shaft and is arranged above the power generation mechanism.

[0010] The wave energy collection system disclosed in the present invention is provided with a float for floating on the sea surface to sense wave energy. Furthermore, after the float senses the wave energy, the sensed wave energy is transmitted to the power generation mechanism through the lower end of the wave energy transmission shaft, so that the power generation mechanism collects wave energy to generate electricity.

[0011] As a preferred example, the ocean current energy collection system includes an ocean current energy transmission shaft, rotating blades, blade connecting arms and a second locking mechanism; wherein the rotating blades are connected to the lower end of the ocean current energy transmission shaft through the blade connecting arms; the upper end of the ocean current energy transmission shaft passes through the buoyancy platform and is connected to the power generation mechanism; the second locking mechanism is connected to the upper end of the ocean current energy transmission shaft and is arranged below the power generation mechanism.

[0012] The ocean current energy collection system disclosed in the present invention is provided with rotating blades in the ocean for sensing the flow of water in the water and then sensing the ocean current energy. Furthermore, after the rotating blades sense the ocean current energy, the sensed ocean current energy is transmitted to the power generation mechanism through the upper section of the ocean current energy transmission shaft, so that the power generation mechanism collects ocean current energy for power generation.

[0013] As a preferred example, the power generation mechanism is a linear rotary generator; the upper end of the ocean current energy transmission shaft is connected to the rotary power generation mechanism of the linear rotary generator; the lower end of the wave energy transmission shaft is connected to the linear power generation mechanism of the linear rotary generator.

[0014] The present invention arranges the linear rotary generator to be connected with the ocean current energy transmission shaft and the wave energy transmission shaft, so as to simultaneously receive the ocean current energy and the wave energy to generate electricity, thereby ensuring the stability of energy supply.

[0015] As a preferred example, it also includes an anchor chain retracting and releasing mechanism; the anchor chain retracting and releasing mechanism includes an underwater anchor windlass, an underwater chain guide and an anchor chain; wherein the underwater anchor windlass includes a stepping motor and a chain barrel;

[0016] The underwater anchor machine is arranged below the buoyancy platform and connected to the buoyancy platform;

[0017] The stepper motor is used to control the retraction and extension of the anchor chain;

[0018] The chain barrel is used to roll up the anchor chain;

[0019] The underwater chain guide is used to control the retracting and releasing direction of the anchor chain.

[0020] The present invention is provided with the anchor chain retracting and releasing mechanism to control the buoyancy of the buoyancy platform, and further when a disaster occurs in the ocean, the entire device is submerged below the sea level by controlling the retraction and releasing of the anchor chain, thereby achieving disaster avoidance of the device.

[0021] As a preferred example, it also includes a mooring mechanism; the mooring mechanism is connected to the anchor chain and is used to fix the buoyant platform.

[0022] The present invention arranges the mooring mechanism to fix the buoyancy platform at one position to collect ocean current energy and wave energy, thereby ensuring the stability of energy collection and further improving the stability of energy supply.

[0023] As a preferred example, it also includes a positioning system; the positioning system is installed in the float and is used to obtain the positioning information of the multi-energy power generation device.

[0024] The present invention sets up the positioning system to timely obtain the location information of the entire device, and then determines whether the device is located within the disaster-stricken area based on the location information, so as to decide whether the entire device should take disaster shelter and ensure the safety of the device.

[0025] As a preferred example, it also includes a communication float system; the communication float system includes a communication ball and a retractor; the communication ball is connected to the positioning system by a cable for downloading instructions and uploading data; the retractor is connected to the communication ball and installed above the buoyancy platform to control the rising and falling of the communication ball.

[0026] The present invention is provided with the communication floating ball system so that the device can timely communicate with the outside world through the communication ball during the disaster avoidance process, thereby ensuring normal energy collection of the device.

[0027] As a preferred example, it also includes an electricity storage and power supply system; the electricity storage and power supply system is connected to the power generation mechanism and is used to store the electric energy generated by the power generation mechanism.

[0028] The present invention provides the power storage and power supply system to collect the electric energy generated by the device and supply it to the power grid or microgrid when needed, so as to achieve the storage of electric energy.

[0029] As a preferred example, it also includes a control system, which is used to collect data and download instructions, and control the multi-energy power generation device to float and dive according to the downloaded instructions.

[0030] The present invention arranges the communication control system to collect data and download instructions, realizes real-time communication with an external device, and ensures that the power generation device can respond to various environmental changes in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 : A front view of a multi-energy power generation device integrating wave energy and ocean current energy disclosed in an embodiment of the present invention;

[0032] Figure 2 : A top view of a multi-energy power generation device integrating wave energy and ocean current energy disclosed in an embodiment of the present invention;

[0033] Figure 3 : An exploded schematic diagram of a multi-energy power generation device integrating wave energy and ocean current energy disclosed in an embodiment of the present invention;

[0034] Figure 4 : is an exploded schematic diagram of a wave energy power generation system disclosed in an embodiment of the present invention;

[0035] Figure 5 : is an exploded schematic diagram of a sea current energy power generation system disclosed in an embodiment of the present invention;

[0036] Figure 6 : A schematic diagram of a blade structure disclosed in another embodiment of the present invention;

[0037] Figure 7 : is a structural schematic diagram of a linear rotating generator disclosed in another embodiment of the present invention;

[0038] Figure 8 : is a schematic cross-sectional structure diagram of a linear rotary generator disclosed in another embodiment of the present invention;

[0039] Fig. 9 : A schematic structural diagram of a single-chip microcomputer control unit disclosed in another embodiment of the present invention;

[0040] 1. Positioning system; 2. Float; 3. Wave energy upper transmission shaft; 4. Power generation mechanism; 5. Upper locking mechanism; 6. Lower locking mechanism; 7. Buoyancy platform; 8. Power storage and power supply system; 9. Communication control system; 10. Underwater anchor machine; 11. Underwater chain guide; 12. Anchor chain; 13. Current energy lower transmission shaft; 14. Blades; 15. Blade connecting arm; 16. Wave energy collection system; 17. Current energy collection system; 18. External stator; 19. Rotor; 20. Internal stator. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1

[0043] The existing technology for developing marine energy is basically to collect a single energy source for energy conversion, which is not effective for energy development. Furthermore, the existing marine energy development devices are often set up in a fixed area for energy collection, which cannot adapt to changes in the marine environment, resulting in a very high rate of device damage.

[0044] In order to solve the above technical problems, this embodiment discloses a multi-energy power generation device that integrates wave energy and ocean current energy. Figure 1 to Figure 2 This embodiment provides a multi-energy collection device that can simultaneously collect ocean current energy and wave energy for power generation. Figure 1 In order to realize multi-source power generation of ocean current energy and wave energy, the multi-energy power generation device is provided with a wave energy collection system 16 and an ocean current energy collection system 17 to collect ocean current energy and wave energy in the ocean respectively.

[0045] Reference Figure 1 In order to ensure that the wave energy collection system 16 can collect wave energy in the ocean and to ensure that the current energy collection system 17 can collect current energy in the ocean, a buoyancy platform 7 is arranged between the wave energy collection system 16 and the current energy collection system 17. When the device is floated on the sea surface by the buoyancy platform 7, the wave energy collection system 16 is arranged above the buoyancy platform 7 and can collect wave energy of the ocean at all times, while the current energy collection system 17 is arranged below the buoyancy platform 7 and can collect current energy of the ocean at all times.

[0046] Furthermore, in certain implementations of this embodiment, in order to ensure energy conversion, a power generation mechanism needs to be provided in the multi-energy power generation device so that the power generation mechanism can convert the ocean current energy and the wave energy into electrical energy to complete energy collection.

[0047] Specifically, in order to ensure the safety of the power generation mechanism, refer to Figure 1 The power generation mechanism may be arranged inside the buoyancy platform 7 so that the power generation mechanism is protected from erosion by seawater by the buoyancy platform 7, thereby improving the safety of the power generation mechanism.

[0048] Furthermore, in order to ensure the real-time conversion of energy, a power generation mechanism with multi-energy power generation capability or a power generation mechanism with single energy power generation capability may be arranged inside the buoyancy platform 7. When the power generation mechanism with multi-energy power generation capability is arranged, a power generation device with wave energy power generation capability and ocean current power generation capability shall be adopted, and when the power generation mechanism with single energy power generation capability is adopted for power generation, the power generation mechanism with wave energy power generation capability may be arranged to be connected to the wave energy collection system 16, and the power generation mechanism with ocean current power generation capability may be arranged to be connected to the ocean current energy collection system 17.

[0049] Reference Figure 2 After the power generation mechanism is set inside the buoyancy platform 7, in some implementations of this embodiment, based on the wave energy collection system 16 collecting the wave energy of the ocean, a float 2 and a wave energy upper transmission shaft 3 can be set in the multi-energy power generation device to form the wave energy collection system 16. Among them, in order to transmit the wave energy received by the float 2 to the power generation mechanism through the wave energy upper transmission shaft 3 for power generation, the upper end of the wave energy upper transmission shaft 3 is connected to the float 2, and the lower end of the wave energy upper transmission shaft 3 can pass through the buoyancy platform 7 and be connected to the power generation mechanism 4. Based on this, when the float 2 moves up and down with the waves of the ocean, it drives the wave energy upper transmission shaft 3 to move up and down, thereby converting the wave energy into mechanical energy, and then the power generation mechanism 4 receives the mechanical energy transmitted by the wave energy upper transmission shaft 3 to generate electricity.

[0050] Reference Figure 1 After the power generation mechanism is set inside the buoyancy platform 7, in some implementations of this embodiment, based on the ocean current energy collection system 17, the ocean current energy collection system 17 can be set as a rotating structure to improve the efficiency of the ocean current energy collection. Specifically, refer to Figure 1 , blades 14 and blade connecting arms 15 are provided to form the rotating part of the ocean current energy collection system 17, and the blades 14 and blade connecting arms 15 can rotate at any time based on ocean current energy. Further, in order to transmit the ocean current energy to the power generation mechanism 4, an ocean current energy lower transmission shaft 13 is provided to be connected to the blade connecting arm 15, so that the ocean current energy lower transmission shaft 13 rotates following the rotation of the blade connecting arm 15, thereby converting the ocean current energy into mechanical energy and then transmitting it to the power generation mechanism for power generation.

[0051] Furthermore, based on the ocean current energy collection system 17, blades 14 and blade connecting arms 15 are arranged to rotate and capture ocean current energy, and the wave energy collection system 16 is arranged to arrange floats to capture wave energy by moving the wave energy upper transmission shaft 3 up and down. Therefore, in certain implementations of this embodiment, when a power generation mechanism with multi-energy power generation capability is used to convert the wave energy and the ocean current energy into electrical energy, a power generation mechanism with both rotational power generation and linear power generation capability is required. As a preferred solution, a linear rotary generator can be used as the power generation mechanism.

[0052] Specifically, when the power generation mechanism is a linear rotary generator, the rotary power generation part of the linear rotary generator is connected to the lower current energy transmission shaft 13 of the current energy collection system 17 to generate electricity through the rotation of the lower current energy transmission shaft 13; the linear power generation part of the linear rotary generator is connected to the upper wave energy transmission shaft 3 in the wave energy collection system 16 to generate electricity through the up and down movement of the upper wave energy transmission shaft 3.

[0053] In certain implementations of this embodiment, when the linear rotary generator is connected to the ocean current energy lower transmission shaft 13 and the wave energy upper transmission shaft 3 respectively, in order to prevent the excessive output power of the power generation mechanism from causing a circuit or power failure, a locking mechanism may be provided at one end of the ocean current energy lower transmission shaft 13 and the wave energy upper transmission shaft 3 close to the linear rotary generator, and then the ocean current energy lower transmission shaft 13 and the wave energy upper transmission shaft 3 are locked by the locking mechanism to interrupt power generation.

[0054] In this embodiment, by respectively arranging a wave energy collection system 16 for collecting wave energy and a current energy collection system 17 for collecting current energy above and below the buoyancy platform 7, the collection of multiple energy sources is achieved. Furthermore, the wave energy collection system 16 and the current energy collection system 17 are both connected to a power generation mechanism arranged on the buoyancy platform 7, so that the power generation mechanism can effectively utilize wave and current energy to generate electricity, thereby ensuring a stable supply of energy.

[0055] In order to solve the technical problem that the power generation device in the prior art cannot achieve disaster avoidance, some implementation methods of this embodiment set a positioning system and a communication control system in the multi-energy power generation device, so that the device's own positioning information can be sent to the outside world through the positioning system and the communication control system, so that the outside world can judge whether the device needs disaster avoidance and receive instructions sent by the outside world at all times. When the outside world determines that the device needs disaster avoidance, the entire device is controlled to dive to achieve disaster avoidance.

[0056] Specifically, refer to Figure 1In order to ensure the quality of communication with the outside world, the positioning system 1 is arranged above the inside of the float 2 to obtain the positioning information of the device itself and communicate with the outside world at all times. Further, after receiving the information sent by the outside world, in order to process the received information, the positioning system 1 can be arranged above the inside of the float 2 to obtain the positioning information of the device itself and communicate with the outside world at all times. Figure 1 A communication control system is provided inside the multi-energy power generation device to process the data sent by the positioning system 1 and control the ascent and descent of the device according to the sent data.

[0057] In some implementations of this embodiment, in order to realize the movement of the entire device, a mechanism for controlling the movement of the device may be provided outside the device. Figure 1 , anchor chain retracting and releasing mechanisms may be provided on both sides of the buoyancy platform 7 to control the movement of the device. Taking a unilateral anchor chain retracting and releasing mechanism as an example, the anchor chain retracting and releasing mechanism may be provided with an underwater anchor windlass, an underwater chain guide and an anchor chain. Among them, in order to ensure the sending and receiving of the anchor chain, the underwater chain guide 11 is provided on the outside of the platform. Furthermore, a waterproof stepping motor unit and a chain barrel unit may be provided in the underwater anchor windlass, so that the stepping motor may be used to control the retraction and release of the anchor chain during work, and the retracted anchor chain may be rolled up and stored in the chain barrel unit. When the buoyancy platform 7 floats up and down, the angle between the anchor chain and the buoyancy platform 7 and the sea surface will change, and the underwater chain guide 11 is used to change the force direction of the anchor chain to adapt to this change and improve the operation efficiency of the mechanism. When receiving a disaster avoidance signal, the anchor chain retracting and releasing mechanism can retract the anchor chain, cooperate with the adjustment of the buoyancy platform 7, and control the entire device to dive.

[0058] Furthermore, when the entire device does not need to be moved, a mooring mechanism can be provided in the device, and the mooring mechanism is connected to the anchor chain of the anchor chain retracting and releasing mechanism to fix the buoyancy platform 7, thereby ensuring that the entire device collects energy in a stable environment.

[0059] In this embodiment, flexible disaster avoidance of the device is achieved based on the positioning system 1, the communication control system and the anchor chain to ensure the safety of the device.

[0060] In some implementations of this embodiment, when the positioning system 1 receives disaster avoidance information sent by the outside world and sends the disaster avoidance information to the communication control system, the communication control system controls the entire device to dive into the water to avoid disasters. During the disaster avoidance process, in order to receive information sent by the outside world in a timely manner to determine that disaster avoidance is completed and power generation can continue, a communication buoy system can be set inside the device, so that the communication buoy system floats to the surface of the water according to a fixed floating time interval to receive data or instructions sent by the outside world.

[0061] Specifically, a communication ball and a retractor may be provided to form the communication buoy system. The communication ball and the positioning system 1 perform data transmission to facilitate downloading instructions and uploading data; the retractor is connected to the communication ball and installed above the buoyancy platform to control the buoyancy and diving of the communication ball.

[0062] This embodiment provides the communication float system so that the device can communicate with the outside world in a timely manner through the communication ball during the disaster avoidance process, thereby ensuring normal energy collection of the device.

[0063] Furthermore, when the device is normally generating electricity from wave energy and ocean current energy, in order to ensure that the converted electric energy is effectively transmitted to the distribution network or other power supply system, a device for storing the electric energy generated by the power generation mechanism may be provided inside the device to avoid wasting electric energy.

[0064] In this embodiment, refer to Figure 1 to Figure 2 The multi-energy power generation device integrating wave energy and ocean current energy uses a wave energy collection system and an ocean current energy collection system to simultaneously collect wave energy and ocean current energy in the ocean, thereby improving the effective collection of energy. The linear rotary generator is connected to the ocean current energy transmission shaft and the wave energy transmission shaft, so that ocean current energy and wave energy can be simultaneously generated by using a single type of power generation mechanism, thereby ensuring the stability of energy supply. Further, in order to solve the technical problem that the existing power generation device cannot avoid disasters, the present embodiment sets a positioning system and a communication control system in the device to timely receive disaster avoidance information sent from the outside world, thereby controlling the movement of the device. In order to achieve the movement of the device, an anchor chain retracting and releasing mechanism is set outside the power generation device, so as to control the retracting and releasing of the anchor chain through the anchor chain retracting and releasing mechanism, thereby controlling the diving and floating of the device, thereby completing the disaster avoidance of the device. When the device is in the process of avoiding disasters, in order to ensure the normal power generation of the device, a communication buoy system can also be set in the device, so as to timely receive information sent from the outside world through a communication ball that floats or dives according to a fixed frequency, thereby enabling the communication control system to timely control the device to generate normal power, thereby ensuring the stability of power generation.

[0065] Embodiment 2

[0066] Reference Figure 3 , is a cross-sectional exploded schematic diagram of a multi-energy power generation device that integrates wave energy and ocean current energy provided in this embodiment. Specifically, Figure 3The power generation device shown includes a point suction wave energy collection system consisting of a float 2 and a wave energy upper transmission shaft 3, a vertical axis ocean current energy power generation system consisting of an ocean current energy lower transmission shaft 13, blades 14, and blade connecting arms 15, and a buoyancy platform 7 to ensure that the device can smoothly collect energy. The buoyancy platform 7, as the main structure of the multi-energy power generation device, provides sufficient buoyancy to keep the entire device on the water surface or adjust it to a specific depth below the sea surface as needed. According to the functional requirements of the device, the buoyancy platform 7 can be designed with sufficient space and bearing capacity to accommodate various components.

[0067] Reference Figure 3 In order to ensure the power generation safety and stability of the power generation device, the power generation mechanism 4 can be arranged inside the buoyant platform 7 so that the power generation mechanism 4 is protected from erosion by seawater through the buoyant platform 7, thereby improving the safety of the power generation mechanism 4.

[0068] In some implementations of this embodiment, based on the wave energy collection system 16 collecting ocean wave energy, refer to Figure 4 , a float 2 and a wave energy upper transmission shaft 3 may be arranged in the multi-energy power generation device to form the wave energy collection system 16. Among them, in order to transmit the wave energy received by the float 2 to the power generation mechanism 4, the upper end of the wave energy upper transmission shaft 3 is connected to the float 2, and the lower end of the wave energy upper transmission shaft 3 may pass through the buoyancy platform 7 and be connected to the power generation mechanism 4. Based on this, when the float 2 moves up and down with the waves of the ocean, it drives the wave energy upper transmission shaft 3 to move up and down, thereby converting the wave energy into mechanical energy, and then the power generation mechanism 4 receives the mechanical energy transmitted by the wave energy upper transmission shaft 3 to generate electricity.

[0069] In some implementations of this embodiment, based on the ocean current energy collection system 17 to collect ocean current energy, in order to improve the efficiency of the ocean current energy collection, the ocean current energy collection system 17 can be set as a rotating structure. Specifically, refer to Figure 5 The blades 14 and the blade connecting arms 15 are provided to form the rotating part of the ocean current energy collection system 17, and the blades 14 and the blade connecting arms 15 can rotate at any time based on the ocean current energy. Furthermore, in order to transmit the ocean current energy to the power generation mechanism 4, an ocean current energy lower transmission shaft 13 is provided to be connected to the blade connecting arms 15, so that the ocean current energy lower transmission shaft 13 rotates following the rotation of the blade connecting arms 15, thereby converting the ocean current energy into mechanical energy.

[0070] Further, refer to Figure 5, when the vertical axis ocean current energy power generation system is arranged below the buoyancy platform 7 and connected to the buoyancy platform 7 through the lower transmission shaft 13. In order to improve the perception of ocean current energy in the ocean by the vertical axis ocean current energy power generation system, the blades 14 and the blade connecting arms 15 can be made of different materials or different shapes. As a preferred solution, the blade connecting arms 15 can be arranged to use NACA 0012 airfoils and be installed at the ends of both sides of the blades 14. At the same time, the blades 14 can be arranged to use convex blades 634-421 and a 5-degree angle of attack, so as to improve the collection efficiency of ocean current energy. Among them, when the blades 14 use convex blades 634-421 and a 5-degree angle of attack, their structure can refer to Figure 6 The blade 14 has a length of 2.73 and a width of 0.32, and is connected to the lower transmission shaft 13 through a blade connecting arm 15, thereby generating electricity by improving the perception of the power of the ocean current, thereby improving the efficiency of power generation.

[0071] Reference Figures 3 to 5 , the point suction wave energy collection system is arranged above the buoyancy platform 7, and is connected to the power generation mechanism 4 in the buoyancy platform through the upper transmission shaft 3, so as to drive power generation by capturing the up and down movement of waves. The vertical axis ocean current energy generation system is arranged below the buoyancy platform 7, and is driven to generate electricity by capturing the ocean current to rotate and drive the power generation mechanism 4. Furthermore, based on the fact that the point suction wave energy collection system and the vertical axis ocean current energy generation system are respectively connected to the power generation mechanism 4 through the upper transmission shaft 3 and the lower transmission shaft 13, when power generation is performed normally, the upper transmission shaft 3 and the lower transmission shaft 13 can be controlled to move normally, but when extremely severe sea conditions occur, the power generation power of the device may be too high, thereby causing the output power of the power generation mechanism 4 to be too high, resulting in circuit or power supply failure. In this regard, in order to avoid the above-mentioned fault conditions, a movement-preventing mechanism can be selected to be arranged between the upper transmission shaft 3, the lower transmission shaft 13 and the power generation mechanism 4, so as to interrupt the power generation of the power generation mechanism 4 by preventing the movement of the upper transmission shaft 3 and the lower transmission shaft 13. In this regard, refer to Figure 1 In a preferred solution, in order to reduce the complexity of the device, a toothed portion may be provided at the upper end of the lower transmission shaft 13 and a portion of the lower end of the upper transmission shaft 3, and then a lower locking mechanism 6 and an upper locking mechanism 5 are provided at the toothed portion, respectively. The toothed portion provided at a portion of the upper end of the lower transmission shaft 13 is connected to the lower locking mechanism 6, so that the lower locking mechanism 6 can lock the lower transmission shaft 13 by using the locking teeth to bite the teeth, thereby interrupting the collection of ocean current energy. The toothed portion provided at a portion of the lower end of the upper transmission shaft 3 is connected to the upper locking mechanism 5, so that the upper locking mechanism 5 can use the locking teeth to bite the teeth, thereby locking the upper transmission shaft 3 to interrupt the collection of wave energy.

[0072] In this embodiment, refer to Figures 3 to 5 The multi-energy power generation device integrating wave energy and ocean current energy can not only generate wave energy and ocean current energy at the same time, but also improve the power generation efficiency of the device. Furthermore, through a simple locking mechanism, the power generation safety of the device is ensured while reducing the complexity of the device.

[0073] Reference Figures 3 to 5 It can be known from the multi-energy power generation device that when the power generation mechanism 4 is set inside the buoyancy platform 7, the wave energy power generation generates electricity through the up and down movement of the transmission shaft, and the ocean current power generation generates electricity through the rotation of the transmission shaft. Therefore, some implementations of this embodiment have been selected and found that the linear rotary generator, as a power generation mechanism that can simultaneously perform linear power generation and rotational power generation, has a strong energy conversion efficiency. Based on this, as a preferred solution, the linear rotary generator is set as the power generation mechanism 4 to perform wave energy power generation and ocean current power generation. Among them, the structure of the linear rotary generator can be simply referred to Figure 7 , Figure 7 FIG. 1 is a schematic diagram of the structure of the linear rotary generator. Figure 7 As shown, the linear rotary generator is a coaxial radial parallel type, specifically, including an outer stator 18, an inner stator 20 and a rotor 19 for moving. Figure 8 , for example Figure 7 The cross-sectional view of the linear rotary generator is shown in FIG. Figure 8 As shown, the connection between the rotor 19 and the inner stator 20 is provided with Inner PMs, and the connection between the rotor 19 and the outer stator 18 is provided with Outer PMs. The rotor 19 can perform linear movement and rotational movement.

[0074] Furthermore, when the power generation mechanism 4 is a linear rotary generator, based on the fact that the linear rotary generator has multiple classifications, the mover permanent magnet linear rotary generator (MPMLRG) and the stator permanent magnet linear rotary generator are two types of linear rotary generators, and both contain a rotary power generation unit (RGU) and a linear power generation unit (LGU) for power generation. Based on the principle of the linear power generation part of the rotary generator and the principle of the rotary power generation part of the rotary generator, it can be known that at a constant load, the linear part of the mover permanent magnet linear rotary generator (MPMLRG) has a higher power generation efficiency, and the rotary part of the stator permanent magnet linear rotary generator (SPMLRG) has a higher power generation efficiency. Therefore, in areas where wave energy is abundant and current energy is relatively scarce, some embodiments of this embodiment set the linear rotary generator to use a mover permanent magnet linear rotary generator, and in areas where current energy is abundant and wave energy is relatively scarce, the linear rotary generator can use a stator permanent magnet linear rotary generator. Among them, the principle of the linear power generation part of the rotary generator is:

[0075]

[0076] B is the magnetic field strength (Tesla, T); l is the length of the conductor (meters, m); v is the speed of the conductor relative to the magnetic field (meters per second, m / s); R is the total resistance of the circuit (ohms);

[0077] The principle of the rotating power generation part of the rotating generator is:

[0078]

[0079] N is the total number of turns of each phase winding; Φ is the maximum magnetic flux passing through each pole (Weber, Wb); ω is the angular velocity (radians / second); R is the total resistance of the circuit (ohms).

[0080] Reference Figures 3 to 5 When the linear rotary generator is set as the power generation mechanism 4, the rotary power generation part of the linear rotary generator is connected to the upper end of the lower transmission shaft 13 of the ocean current energy collection system 17, so as to use the power of the ocean current to directly drive the vertical axis turbine blades of the linear rotary generator to rotate, the blades 14 drive the blade connecting arms 15, the blade connecting arms 15 drive the lower transmission shaft 13, and the lower transmission shaft 13 drives the rotary power generation part of the linear rotary generator to rotate, and generates electricity through the generator; the linear power generation part of the linear rotary generator is connected to the lower end of the upper transmission shaft 3 of the wave energy in the wave energy collection system 16, so as to capture the energy of the wave through the float 2 and move up and down, the float 2 drives the upper transmission shaft 3, and the upper transmission shaft 3 drives the linear power generation part of the linear rotary generator to move linearly, and generates electricity through the generator.

[0081] In this embodiment, the linear rotary generator is connected to the ocean current energy transmission shaft and the wave energy transmission shaft, so as to simultaneously receive the ocean current energy and the wave energy to generate electricity, thereby ensuring the stability of energy supply. At the same time, in this embodiment, different types of linear rotary generators are selected according to the different sea areas where energy is collected, and the environmental adaptability of power generation can be improved without changing the structure of the device.

[0082] Reference Figures 3 to 5 The multi-energy power generation device shown realizes the synchronous power generation of ocean current energy and the wave energy, solving the technical problem of unstable power supply caused by single energy generation in the prior art. However, the power generation device in the prior art is often fixed in a set area. When a disaster occurs at sea, the device cannot avoid the disaster, which may easily cause the device to be damaged in the marine disaster or directly fail to generate electricity. In this regard, in order to solve the technical problem that the power generation device in the prior art cannot avoid the disaster, in a preferred solution, the following is set up: Figure 3 The multi-energy power generation device. Figure 3The multi-energy power generation device shown can achieve disaster avoidance of the device.

[0083] Specifically, when the power generation device is performing disaster avoidance, in order to ensure that the device can receive disaster avoidance information sent by the outside world and then perform disaster avoidance, a component that can communicate with the outside world needs to be installed in the device. Furthermore, after receiving the disaster avoidance information sent by the outside world, it is also necessary to process the information and control the disaster avoidance action of the entire device, so it is necessary to install a component that can process information and control the device to perform disaster avoidance actions in the device.

[0084] Based on the above disaster avoidance needs, in some implementations of this embodiment, refer to Figure 3 In order to ensure the quality of communication with the outside world, the positioning system 1 can be set above the inside of the float 2 to obtain the positioning information of the device itself at all times and communicate with the outside world. Furthermore, in order to improve the stability and accuracy of positioning, the positioning system 1 can be set to use a Beidou communication positioning unit. The Beidou communication positioning unit can perform real-time communication and data exchange, can be responsible for receiving the real-time position and status information of the device, and receive signals sent by the external shore-based operating platform, that is, the outside world (including disaster avoidance signals and other control instructions).

[0085] Specifically, it is composed of a Beidou positioning module, a Beidou short message module, a Beidou three-generation receiving antenna, a Beidou three-generation SIM card and related circuits. When the Beidou communication positioning unit receives signals and information sent from the outside world, the format of the signal that can be received is an 8-bit sending end device identification code + an 8-bit receiving end device identification code + a 12-bit message sending time code + a 12-bit instruction code. For example, if the shore-based operating platform "BHA00001" sends a signal of "deep diving at 6:00 on September 11, 2024" to the offshore power generation platform "BHA01023" at 20:21 on September 9, 2024, the content is "BHA00001BHA01023TM2409092021SQ2409110600".

[0086] Furthermore, in Figure 3 After the positioning system 1 is installed to receive the disaster avoidance signal sent by the outside world, it is also necessary to set up a component for main control to process the signal and control the power generation and disaster avoidance of the entire device. In order to ensure the safety of the components of the main control, Figure 3 As shown, the communication control system 9 is arranged inside the buoyancy platform 7 to protect the communication security of the communication control system 9 through the buoyancy platform 7. In order to realize the signal transmission between the communication control system 9 and the positioning system 1, the communication control system 9 and the positioning system 1 can be connected by a cable.

[0087] Specifically, in order to improve the efficiency and accuracy of the signal processing of the communication control system 9. In some implementations of this embodiment, a single-chip microcomputer control unit is provided to form the communication control system 9. The single-chip microcomputer control unit can be responsible for collecting the operation data of the entire power generation device to form a log, including the platform positioning coordinates, power generation efficiency in each period, working state duration, communication information records, processing and deciding the information sent and received with the shore-based operating platform, and controlling the platform's auxiliary machinery and electrical equipment.

[0088] Specifically, the single-chip control unit can select different types according to the needs of the device. In a preferred embodiment, the single-chip control unit is based on the STM32F407, which is a highly integrated, high-performance 32-bit Cortex TM -M4 core microcontroller, whose operating frequency can reach up to 168MHz, has a floating point unit and supports DSP instructions, can perform complex calculations at high speed, and can achieve low energy consumption of current consumption as low as 0.04A and power consumption of about 0.13W in the running mode. Therefore, the single-chip microcomputer control unit is set to use the STM32F407. Among them, when the STM32F407 is used as the single-chip microcomputer control unit, the single-chip microcomputer control unit can refer to Fig. 9 ,like Fig. 9 As shown, the STM32F407 can be a STM32F407ZG microcontroller with 1MB memory Flash, 144 pins, and 114 IO ports, or a microcontroller with different memory, different pins, and different IO ports. Taking the STM32F407ZG microcontroller as an example, it is set to work at a voltage of 3.3V, with an 8M active crystal oscillator as the clock source, and the operating frequency reaches 168MHz after phase-locked loop frequency division.

[0089] In this embodiment, the communication control system 9 and the positioning system 1 are the key to realizing the autonomous disaster avoidance function of the power generation device. Through real-time communication with the shore-based control center, it is ensured that the power generation platform can respond to various environmental changes in a timely manner.

[0090] In certain implementations of this embodiment, when the communication control system 9 and the positioning system 1 determine that the device needs to take shelter from disasters or release the state of taking shelter from disasters, a mechanism for communicating with the communication control system 9 needs to be installed on the device, and then a signal sent by the communication control system 9 is received to execute the movement of the device, and the movement of the entire device is realized through the movement of the mechanism. Specifically, in order to realize the communication transmission and the internal space limitation of the buoyancy platform 7, the communication control system 9 can be connected to the movement mechanism of the execution device by a cable.

[0091] Based on the above exercise requirements, refer to Figure 3In some implementations of this embodiment, an anchor chain retracting and releasing mechanism is installed on both sides of the lower end of the buoyant platform 7. Specifically, the anchor chain retracting and releasing mechanism includes an underwater anchor machine 10, an underwater chain guide 11, and an anchor chain 12. Among them, the underwater anchor machine 10 contains a waterproof stepper motor unit and a chain barrel unit. During operation, a stepper motor is used to control the retraction and release of the anchor chain 12, and the retracted anchor chain 12 is stored in the chain barrel unit. When the buoyant platform 7 floats up and down, the angle between the anchor chain 12 and the buoyant platform 7 and the sea surface will change. The underwater chain guide 11 is used to change the force direction of the anchor chain 12 to adapt to this change and improve the operation efficiency of the mechanism. When receiving a disaster avoidance signal, the anchor chain retracting and releasing mechanism can retract the anchor chain 12, and cooperate with the adjustment of the buoyant platform 7 to make the entire device sink to the disaster avoidance position below the sea surface, thereby avoiding damage to the platform caused by extreme weather.

[0092] Among them, the disaster shelter position is divided into shallow diving position and deep diving position, and the depth of shallow diving position and deep diving position can be manually set according to the specific environmental position of the power generation platform. According to the international standard sea condition level, sea conditions of level 1-9 are respectively called no waves, slight waves, small waves, medium waves, big waves, huge waves, wild waves, wild waves, and raging waves. When encountering sea conditions of level 5-6, sea ice or other general severe sea conditions, the platform should dive shallowly. When encountering extremely severe sea conditions such as sea conditions of level 7 or above, tsunamis, typhoons, or avoiding ships, it should dive shallowly.

[0093] In some embodiments, when the device does not need to avoid disasters, in order to ensure that the device is in a stable position to generate electricity, a mooring system can be set in the multi-energy power generation device; wherein the mooring system can use three-point mooring to fix the buoyancy platform 7 at a specific position in the ocean. wherein, when the device is fixed, the mooring system can be connected to the anchor chain 12.

[0094] This embodiment realizes the buoyancy or diving of the device through the transmission and reception of the anchor chain 12, thereby realizing autonomous disaster avoidance of the device and improving the safety of the device. Furthermore, by setting up a mooring system connected to the anchor chain 12, the device can be placed in a stable position to generate electricity, thereby improving the stability of power supply.

[0095] In other implementations of this embodiment, when the power generation device is in a disaster avoidance action, in order to ensure that the power generation device is released from the disaster avoidance action in a timely manner and resumes normal power generation, the device needs to receive signals sent from the outside in a timely manner, and then determine whether to release the disaster avoidance through the communication control system 9. Since the positioning unit 1 is located inside the float 2, it may be affected by the sea when in a disaster avoidance state and cannot receive signals sent from the outside in a timely manner. At this time, it is necessary to install a mechanism inside the device that can float on the water surface to receive signals and dive to the disaster avoidance position to send the received signals to the communication control system 9.

[0096] In this regard, this embodiment installs a communication float system inside the multi-energy power generation device. The communication float system consists of a communication ball unit, a data transmission cable, and a communication ball retracting and releasing mechanism; the communication ball unit is used to receive signals sent from the outside; the data transmission cable is used to connect the communication ball unit with the communication control system 9 or connect the communication ball unit with the positioning system 1, so as to facilitate sending the signal received by the communication ball unit to the communication control system 9; the communication ball retracting and releasing mechanism is used to control the buoyancy or diving of the communication ball unit.

[0097] Specifically, under normal working conditions, the communication ball unit is firmly fixed on the float. The communication ball retracting mechanism is fixed on the buoyancy platform 7. When the disaster avoidance command is executed and the platform dives, the signal platform cannot communicate directly because of the isolation of the seawater. Therefore, a communication buoy timing buoy communication mechanism is provided, so that the communication ball unit floats to the sea surface every 12 hours to receive signals and submit work logs, and senses whether the severe sea conditions have ended. The time interval for timing buoyancy communication can also be actively set.

[0098] This embodiment sets up the communication float system so that the device can communicate with the outside world in time through the communication ball during the disaster avoidance process, ensuring that the device can release the disaster avoidance action in time and restore normal energy supply.

[0099] After the multi-energy power generation device provided in this embodiment performs wave power generation and ocean current power generation, in order to prevent the electric energy generated by the power generation mechanism 4 from being wasted and to ensure the stable power output of the power generation mechanism 4, a power storage and power supply system can be set inside the device; the power storage and power supply system is connected to the power generation mechanism and is used to store the electric energy generated by the power generation mechanism. Furthermore, the power storage and power supply system can be connected to a power supply cable to provide stable power output.

[0100] Specifically, refer to Figure 3 In order to ensure the safety of the power storage and power supply system, the power storage and power supply system 8 can be built into the buoyancy platform 7 and connected to the power generation mechanism 4 to store the electric energy generated by the power generation mechanism 4.

[0101] Further, refer to Figure 3It can be seen from the multi-energy power generation device shown that the multi-energy power generation device also includes components that require electricity, such as a communication float system, a communication control mechanism, etc. Under normal conditions, the electric energy generated by the power generation mechanism 4 can be supplied to the components that require electricity through the power storage and power supply system 8. However, when the multi-energy power generation device is in a disaster avoidance state, the electric energy generated by the power generation mechanism 4 may not be able to guarantee a stable supply. In this regard, in order to ensure that the multi-energy power generation device can provide a stable power output even under severe weather conditions, a stable power supply can be provided in the multi-energy power generation device to provide a stable power output for the device.

[0102] Specifically, in order to ensure that the power supply meets the power demand in the disaster avoidance state, this embodiment selects the capacity of the power supply according to the actual power demand of the device. In a disaster avoidance situation, assuming that the power demand in the disaster avoidance state is 0.1kW, and the maximum maintenance time is 10 days (240 hours), the multi-energy power generation device releases and retracts the communication buoy once every 12 hours, then 20 release and retraction operations, 1 sinking action and one floating action will be performed within 10 days, and it is assumed that a single release and retraction of the communication ball consumes 0.4kWh, and a single sinking and floating consumes 2kWh, then: total energy consumption = 0.1kW×240h+0.4kWh×20+2kWh×2=36kWh; at the same time, considering that the power supply needs to have sufficient capacity to cover the 36kWh energy consumption and the power supply should not be fully discharged to extend its service life, the depth of discharge (DoD) is set to 80%, that is, only 80% of the total capacity of the power supply is used, therefore: required power supply capacity = total energy consumption / discharge depth = 36kWh / 0.8=45kWh, so a 45kWh power supply is selected to provide power for the multi-energy power generation device for disaster avoidance.

[0103] The present invention discloses a multi-energy power generation device integrating wave energy and ocean current energy, which receives weather, sea condition and other information through a shore-based operating platform. When a warning forecast of severe sea conditions such as typhoons, tsunamis and huge waves is issued or is artificially foreseeable to occur, the shore-based operating platform sends a disaster avoidance signal to an offshore power generation platform. After receiving the signal, the offshore power generation platform drives the anchor chain retracting and releasing mechanism to retract the anchor chain, so that the power generation platform sinks to a disaster avoidance position below the sea surface, thereby realizing active disaster avoidance.

[0104] During the power generation process of the multi-energy power generation device, thanks to the three-stage energy conversion design of "power generation - power storage - power supply", no matter whether the ocean current energy and wave energy power generation systems are in working state or how the load fluctuates, the power storage and power supply system of the device can continue to supply power to the power grid or microgrid without being affected, and the stable current ensures the continuous stability of the power grid load.

[0105] During the power generation process of the multi-energy power generation device, thanks to the "wave energy-ocean current energy" combined power generation design, no matter whether the platform is in the working position or the disaster shelter position, the device's power generation system can still generate electricity normally and store the generated electricity in the power storage and power supply system.

[0106] In the process of power generation by the above-mentioned multi-energy power generation device, thanks to the "vertical axis-point absorption" power generation method design, no matter what direction the ocean currents and waves are in, the device can fully utilize their energy to generate electricity.

[0107] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-energy power generation device integrating wave energy and ocean current energy, characterized in that: include: Buoyancy platforms, wave energy collection systems, current energy collection systems and power generation mechanisms; Wherein, the power generation mechanism is arranged in the buoyancy platform and is used to convert ocean current energy and wave energy into electrical energy; The wave energy collection system is arranged above the buoyancy platform, and is used to collect wave energy and transmit the wave energy to the power generation mechanism for power generation; The ocean current energy collection system is arranged below the buoyancy platform, and is used for collecting ocean current energy and transferring the ocean current energy to the power generation mechanism for generating electricity.

2. A multi-energy power generation device integrating wave energy and ocean current energy according to claim 1, characterized in that: The wave energy collection system includes a float, a wave energy transmission shaft and a first locking mechanism; wherein the lower end of the wave energy transmission shaft passes through the buoyancy platform and is connected to the power generation mechanism; the upper end of the wave energy transmission shaft is connected to the float; the first locking mechanism is connected to the lower end of the wave energy transmission shaft and is arranged above the power generation mechanism.

3. The multi-energy power generation device integrating wave energy and ocean current energy according to claim 1, characterized in that: The ocean current energy collection system includes an ocean current energy transmission shaft, rotating blades, blade connecting arms and a second locking mechanism; wherein the rotating blades are connected to the lower end of the ocean current energy transmission shaft through the blade connecting arms; the upper end of the ocean current energy transmission shaft passes through the buoyancy platform and is connected to the power generation mechanism; the second locking mechanism is connected to the upper end of the ocean current energy transmission shaft and is arranged below the power generation mechanism.

4. A multi-energy power generation device integrating wave energy and ocean current energy according to any one of claims 2-3, characterized in that: The power generation mechanism is a linear rotary generator; the upper end of the ocean current energy transmission shaft is connected to the rotary power generation mechanism of the linear rotary generator; the lower end of the wave energy transmission shaft is connected to the linear power generation mechanism of the linear rotary generator.

5. The multi-energy power generation device integrating wave energy and ocean current energy according to claim 1, characterized in that: It also includes an anchor chain retracting and releasing mechanism; the anchor chain retracting and releasing mechanism includes an underwater anchor windlass, an underwater chain guide and an anchor chain; wherein the underwater anchor windlass includes a stepping motor and a chain barrel; The underwater anchor machine is arranged below the buoyancy platform and connected to the buoyancy platform; The stepper motor is used to control the retraction and extension of the anchor chain; The chain barrel is used to roll up the anchor chain; The underwater chain guide is used to control the retracting and releasing direction of the anchor chain.

6. The multi-energy power generation device integrating wave energy and ocean current energy according to claim 5, characterized in that: It also includes a mooring mechanism; the mooring mechanism is connected to the anchor chain and is used to fix the buoyancy platform.

7. The multi-energy power generation device integrating wave energy and ocean current energy according to claim 2, characterized in that: It also includes a positioning system; the positioning system is installed in the float and is used to obtain the positioning information of the multi-energy power generation device.

8. The multi-energy power generation device integrating wave energy and ocean current energy according to claim 2, characterized in that: It also includes a communication float system; the communication float system includes a communication ball and a retractor; the communication ball is connected to the positioning system by a cable for downloading instructions and uploading data; the retractor is connected to the communication ball and installed above the buoyancy platform to control the rising and falling of the communication ball.

9. The multi-energy power generation device integrating wave energy and ocean current energy according to claim 1, characterized in that: It also includes an electricity storage and power supply system; the electricity storage and power supply system is connected to the power generation mechanism and is used to store the electric energy generated by the power generation mechanism.

10. A multi-energy power generation device integrating wave energy and ocean current energy according to claim 1, wherein The invention is characterized in that it also includes a communication control system, wherein the communication control system is used to collect data and download instructions. And according to the downloaded instructions, the multi-energy power generation device is controlled to float up and dive down.

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