249 results about "Wave power generation" patented technology

The invention discloses a semi-submersible wave energy-wind energy integrated power generation platform and a damping regulation and control method of a damping regulation and control system of the semi-submersible wave energy-wind energy integrated power generation platform. The platform comprises a semi-submersible wind driven generator platform, a wind driven generator set, a wave energy power generation device, an energy storage system, a sea area detection system and the damping regulation and control system. The wave energy power generation devices are divided into two groups on the inner side and the outer side of the platform, each wave energy power generation device comprises a platform inner side wave energy power generation device and a platform outer side wave energy power generation device, and each wave energy power generation device comprises a swing arm floater, a universal hinge, a connecting arm and a damping adjusting module. The semi-submersible wind power generation device and the wave power generation device are combined, and offshore renewable resources are comprehensively utilized; the six-buoy design is adopted, buoyancy is dispersed, stability and safety are improved, and meanwhile space is provided for a wave power generation device; the floaters are symmetrically arranged in a hexagonal shape and carry a damping regulation and control system, and the whole structure is more easily stabilized by adjusting the damping of the floaters in all directions.

The invention belongs to the technical field of ocean renewable energy power generation, and particularly relates to a floating type storm power generation system control method based on knowledge distillation and a partitioning strategy. Constructing a multi-teacher model system; knowledge distillation and student model training; designing a partition control strategy; designing a target function; designing a weight adaptive mechanism; defining constraint conditions; performing upper layer optimization solution; executing a lower-layer control instruction; and dynamically feeding back a correction mechanism. The method covers all operation and survival working conditions of the combined power generation system, on one hand, the modeling difficulty and complexity of a control model are reduced, the real-time performance and reliability of prediction and control are improved, on the other hand, the zoning control strategy is proposed in combination with the stormy wave condition from the angle of engineering application of the combined system, and the control efficiency is improved. Therefore, the energy utilization efficiency and the operation stability of the floating type wind and wave combined power generation system under complex sea conditions are enhanced.

The invention discloses a wave power generation device for an island, and relates to the technical field of power generation for the island, the wave power generation device comprises a floating body and a fixed support, the floating body floats along with sea waves, an energy generation mechanism and an energy conversion mechanism are arranged on the inner side of the fixed support, the fixed support does not float along with the sea waves, and the energy generation mechanism is arranged on the top surface of the floating body; the fixed support controls the buoyancy difference value of the floating body based on the moving state of the energy generation mechanism, the energy conversion mechanism is connected with a generator through a transmission mechanism and drives the generator through the transmission mechanism, the generator is connected with a frequency-stabilized voltage-stabilized power supply through a wire, and the frequency-stabilized voltage-stabilized power supply outputs stabilized voltage electric energy. The wave power generation device has the advantages of being high in wave energy conversion efficiency, simple and compact in structure and reliable in operation.

The invention provides an ocean carrier follow-up wave power generation device which comprises a cylindrical linear generator, a linear motion sliding table, a bistable motion unit and a steering adjusting unit, the cylindrical linear generator is placed on the linear motion sliding table, and the whole motor can slide; the two sides of the upper sliding rail are fixedly connected with an upper supporting rod frame in the bistable motion unit, the lower sliding rail is connected with a bistable motion frame in the bistable motion unit, and the bistable motion unit is placed on the steering adjusting unit to form the whole structure of the power generation device. The device can be mounted on various suitable ocean carriers, and the power generation efficiency of the power generation device is improved by utilizing a bistable motion principle; by combining a cylindrical linear generator, a linear motion sliding table, a bistable motion unit with a bistable motion spring as a main tool and a steering adjusting unit, bistable motion power generation based on a cross potential energy trap is achieved, the energy capture efficiency when the wave energy frequency is low is improved, and the power generation adaptability of the device to different sea conditions is improved.

The embodiment of the invention relates to the technical field of ocean energy utilization, in particular to an ocean power generation device and method. The water immersion stand column is used for supporting the wind power generation component; the wave energy power generation component is arranged on the water immersion stand column and can move up and down along the water immersion stand column; and the culture net cage is arranged on the edge of the wave energy power generation component and can move along the edge. According to the ocean power generation device, the wave energy power generation component can generate power through vertical movement of the wave energy power generation component, pitching and yawing of the wind energy power generation component are relieved while complementation of wind energy and wave energy is achieved, and the power generation efficiency and the power generation stability are comprehensively improved. The balance weight of the aquaculture net cage can reduce the gravity center of the wind power generation component and improve the storm resistance of the ocean power generation device. The immersed stand column is not only a wind power generation component foundation, but also a kinetic energy transmission medium for wave power generation, and meanwhile provides an anchoring point for the aquaculture net cage, so that three purposes are achieved through one column.

The utility model discloses a wave power generation floating body structure which comprises a shell, a mounting support is fixedly connected to one side of the top of the shell, a conversion device is arranged in the shell and on the side, away from the mounting support, of the shell, and the conversion device comprises an inclined rod rotationally connected to the upper portion of the side, away from the mounting support, of the outer wall of the shell; and the floating block is rotationally connected to the tail end of the inclined rod. The utility model relates to the technical field of new energy power generation, in particular to a wave power generation floating body structure, which can continuously apply driving force for forward rotation of a gear even if the water surface fluctuates repeatedly through the matching of a shell and a conversion device, so that the gear can continuously rotate forwards, the power generation efficiency is ensured, and the utilization rate of energy is improved. And meanwhile, the risk that the generator is damaged is also reduced, so that the maintenance frequency of workers can be reduced, the working intensity of the workers is reduced, and convenience is brought to the use of the workers.

The invention relates to an optimal power capturing method for a wave energy power generation device of a mixed-flow type air turbine, and belongs to the field of wave energy power generation. The optimal power capturing method comprises the steps that the change condition of the average output power of the turbine under different sea conditions along with the rotating speed is tested, and the maximum average output power point of the turbine under each sea condition is obtained; fitting the maximum average output power point under each sea condition to obtain a control law of the electromagnetic power of the motor; the quadrature-axis current reference value of the stator is made to be equal to zero, and the direct-axis current reference value of the stator is calculated; calculating a stator quadrature-direct axis current error term, and establishing a positive definite Lyapunov function; deriving the Lyapunov function, substituting the Lyapunov function into a stator quadrature-direct axis current state equation, and then performing transformation according to a first stability theorem to obtain a stator quadrature-direct axis voltage control law; and generating a corresponding SVPWM (Space Vector Pulse Width Modulation) switching signal according to a stator quadrature-axis voltage control law so as to control a motor-side converter and realize control on a turbine. The wave energy capturing efficiency can be improved.

The invention discloses a multi-energy coupling intelligent power generation device integrating wind power, photovoltaic energy and wave energy, and belongs to the technical field of distributed energy systems. Aiming at the problems of high intermittency, low coupling efficiency, structural redundancy and the like of a traditional system, three power generation units are integrated through a rack: a wave power generation unit adopts a multi-directional articulated shaft-connecting rod-bevel gear pair and spur gear-rack transmission to construct a double-cooperative power generation path, and is matched with a guide rail sliding block and a reset spring; wave multi-degree-of-freedom energy is efficiently captured, and the transmission precision is ensured; the wind power generation unit decelerates and increases torque by using a box-type planetary reducer; and the photovoltaic power generation unit dynamically follows light through the double-shaft holder and the photoresistor array in combination with an MPPT (maximum power point tracking) algorithm. According to the invention, wave energy is mainly used, wind / light is coordinated and complementary, when wind power or photovoltaic power is influenced, the wave energy continuously supplies power, the traditional bottleneck is broken through, stable and efficient energy supply in water areas such as islands and oceans is realized, and compared with a traditional scheme, the wave energy utilization rate and the power supply stability are remarkably improved.

The invention relates to the technical field of unmanned underwater vehicle charging, in particular to an unmanned underwater vehicle charging system based on wave energy power generation, which comprises a vehicle body and a cabin cover, a dry cabin and a wet cabin which are communicated through a dynamic sealing cabin penetrating piece are arranged in the vehicle body, and an electric capstan, a stay wire type power generation device and a power storage module are arranged in the dry cabin. The electric capstan comprises a winding drum, an energy capturing unit is arranged in the wet cabin and comprises an air bag floater, an inflation assembly is arranged below the air bag floater, one end of the connecting cable is connected to the winding drum, the middle of the connecting cable is wound around the stay wire type power generation device, and the other end of the connecting cable penetrates through the dynamic sealing cabin penetrating piece to be connected with the air bag floater. The energy harvesting units for harvesting wave energy, the stay wire type power generation device and the power storage module are integrated in the unmanned underwater vehicle, the energy harvesting units can be sequentially released in the sea for multiple times to achieve in-situ autonomous charging in a task sea area, and the task duration time and the operation range of the vehicle in the deep and far sea are greatly prolonged.

The present invention relates to offshore floating wind-wave complementary power generation technology, in particular to a wind-wave complementary grid-connected optimization method based on VSG technology and feedforward control. A floating wind-wave coupled cooperative power generation system is designed, and the spatiotemporal complementary characteristics of wind energy and wave energy in the marine environment are utilized to improve the utilization rate of the anchor chain system and power transmission and transformation equipment. A nonlinear mathematical model of the power generation power of the floating wind turbine and wave power generation device is constructed. A feedforward control strategy of the floating wind-wave complementary power generation system is designed, and the wind and wave conditions in the medium and far sea areas are obtained by using a laser wind measuring radar and a laser wind measuring radar. The sea conditions near the wind-wave complementary power generation system are predicted in seconds and converted into a feedforward signal for power prediction and wind turbine state adjustment. An inverter virtual synchronous control strategy is designed, and the virtual synchronous control technology is adopted. Virtual inertia and virtual damping coefficient are introduced, and the inverter is used to realize primary frequency modulation, voltage / frequency regulation, and damped oscillation suppression functions, thereby improving the stability of the grid side.

The invention relates to a breakwater structure for wave power generation and a construction method of the breakwater structure. The breakwater structure comprises a lower barrel body, an upper caisson and a power generation device. A compartment is arranged in the upper caisson, and the power generation device is installed in the compartment. A wave inlet hole is formed in the wave facing side of the upper caisson, a cast-in-place adjusting node is arranged on the top of the upper caisson, and a wave wall, a cable pipe trench, a detachable road plate and an overhauling device are sequentially arranged above the node. The breakwater structure and the wave power generation system are integrated by adopting standard barrel type foundation factory prefabrication and floating transportation installation and combining cast-in-place joint leveling and the detachable road plates. The structure has the advantages of being convenient to construct, controllable in cost, stable in structure, convenient to maintain and the like, is suitable for wave power generation under medium and small wave conditions, and is particularly suitable for green power supply and coast protection in areas such as ports and islands.

The invention discloses a wave energy direct utilization method and device based on symmetrical wing array space synchronous conversion and energy enrichment layer optimal capture. The method takes a symmetric wing array as an energy conversion core, and cooperates through five principles: 1) constructing a large-scale stable reference; (2) recognizing and accurately deploying the symmetric wing array on a wave energy enrichment layer, namely, the center depth is 0.2 H-0. 4H below a still water surface, and the error that the device is placed in an energy depletion deepwater area is corrected in principle; 3) spatial synchronous conversion is realized, so that the array synchronously utilizes bidirectional kinetic energy of waves at any time; and 4) designing an intrinsic self-sustaining stable framework. A complete principle framework of efficient wave energy conversion is established, a self-holding high-speed wave propeller and a high-power wave power generation device can be derived, and fundamental exceeding of the prior art is achieved.

The application relates to the technical field of wave power generation, in particular to a novel box-cylinder type foundation breakwater structure, a working method and an installation method, which comprise front rows of power generation towers and rear rows of power generation towers; the front rows of power generation towers are provided with front guide pipes and horizontal front elastic units, and the rear rows of power generation towers are provided with rear guide pipes and horizontal rear elastic units. When waves surge, the waves will strike the horizontal front elastic units and the horizontal rear elastic units and surge into the front guide pipes and the rear guide pipes, that is, the front rows of power generation towers and the rear rows of power generation towers can be simultaneously impacted by the waves and can dissipate the energy of the waves for multiple times, and the front rows of power generation towers and the rear rows of power generation towers both adopt the combined mode of wave surging power generation and wave striking power generation to generate electricity. The application can improve the recycling rate of wave energy, thereby improving the power generation efficiency of the wave energy.

The invention discloses a full-coupling numerical simulation system and method for a wind and wave hybrid energy obtaining system, and relates to the field of data analysis, and the method comprises the steps: generating an aerodynamic load of a current period based on incoming flow wind speed and coupling dynamics response data of a previous simulation period; based on preset mooring system parameters and the coupling dynamics response data of the previous simulation period, generating a mooring load of the current period; in the random wave field, determining the hydrodynamic force of the floating foundation entity and the wave energy power generation entity, and generating a wave load; determining a PTO force based on the relative motion between the power generation platform and the wave energy power generation entity; and taking the aerodynamic load, the mooring load, the wave load and the PTO force as external force terms in the same time domain kinetic equation for unified solution, and obtaining a coupling kinetic response of the current simulation period. According to the full-coupling numerical simulation system and method for the wind and wave hybrid energy obtaining system, the simulation precision of the simulation system can be improved, and the overall calculation efficiency of the system is improved.

The application discloses a self-generating buoy for comprehensively utilizing ocean current energy, and relates to the technical field of ocean monitoring.The self-generating buoy comprises a buoy main body, a solar power generation assembly, a tidal current power generation assembly, a wave power generation assembly and an energy storage component; the buoy main body floats on the water surface; the solar power generation assembly is arranged on the upper side of the buoy main body; the wave power generation assembly is arranged on the lower side of the buoy main body; the tidal current power generation assembly can rotate around a vertical axis relative to the buoy main body and can move along the vertical direction relative to the buoy main body; the wave power generation assembly can be driven by the tidal current power generation assembly in the vertical direction, so that the floating assembly can move along the vertical direction to drive the first power generation component to move and generate power; and the energy storage component can store electric energy.The self-generating buoy for comprehensively utilizing ocean current energy can comprehensively utilize solar energy, tidal current energy and wave energy, improve the self-generating efficiency, and adapt to the changes of the tidal current in multiple directions.

The invention relates to the technical field of wave power generation, in particular to a novel box-barrel type foundation breakwater structure and a working and mounting method thereof, and the novel box-barrel type foundation breakwater structure comprises a front-row power generation tower and a rear-row power generation tower; the front-row power generation tower is provided with a front flow guide pipe and a horizontal front elastic unit, and the rear-row power generation tower is provided with a rear flow guide pipe and a horizontal rear elastic unit. When surging, waves slap the horizontal front elastic unit and the horizontal rear elastic unit and flow into the front flow guide pipe and the rear flow guide pipe, that is, the front-row power generation tower and the rear-row power generation tower can be impacted by the waves at the same time, and energy dissipation is conducted on the waves for multiple times. And the front-row power generation tower and the rear-row power generation tower both adopt a wave inrush power generation and wave slapping power generation combined mode to generate power. The recycling rate of the wave energy can be increased, so that the power generation efficiency of the wave energy is improved.

The invention discloses a solar energy and wave energy composite power supply device of a sea-based central management platform, and belongs to the technical field of power generation equipment. The composite power supply device comprises a first platform, the first platform is connected with at least one buoyancy assembly through an anchor rope, a photovoltaic assembly is arranged above the buoyancy assembly, and a wave power generation assembly is arranged below the buoyancy assembly; the buoyancy assembly comprises two first floating plates which are oppositely arranged, a second floating plate is arranged between the bottoms of the first floating plates in a spaced mode, and an electric control box connected with the photovoltaic assembly and the wave power generation assembly is arranged above the second floating plate. The problems that in an existing sea-based platform power supply device, a single energy mode is poor in stability, a buoyancy structure is poor in wind wave resistance, and equipment is prone to being damaged by wave impact are solved.

The application relates to the technical field of wave power generation, and discloses a maximum power extraction control method of an embedded direct-drive wave power generation device, which is applied to the embedded direct-drive wave power generation device and comprises the following steps: acquiring a motion position signal of a core power generation unit, a capacitor voltage signal of a generator rectifier output end and an inductance current signal of a boost conversion circuit; determining a position error signal between a motion reference position of the core power generation unit and a detected real-time position, and adjusting to obtain a position reference voltage; collecting the capacitor voltage and the inductance current of the generator rectifier output end in real time, determining an optimal reference voltage, and adjusting to obtain an MPPT reference voltage; determining a sum value between the position reference voltage and the MPPT reference voltage, and setting the sum value as a final capacitor reference voltage of a generator output end; and calculating a duty cycle D by using a PI controller, and generating a PWM signal to realize tracking control of the maximum power. The application improves the energy conversion efficiency of the embedded direct-drive wave power generation device.

The invention provides a wave power generation flexible net cage, and relates to the technical field of deep sea cultivation, the wave power generation flexible net cage specifically comprises an in-cage floating frame, a power generation assembly and a floating frame assembly, the in-cage floating frame and the floating frame assembly are connected to form a drop-shaped outer contour, water flow can flow around more smoothly, vortex and resistance peak values are reduced, and therefore the water flow load is effectively reduced; when subjected to wave impact, the floating frame in the box can swing through a hinge point, so that wave load is unloaded, the floating frame in the box and the floating frame assembly rotate relatively, the driving end of the generator is driven to rotate, wave mechanical energy is converted into electric energy, self-power supply or energy storage is achieved, the energy self-sufficient capacity is improved, and the generator can provide damping force in the rotating process; wave impact energy is absorbed and dispersed, local stress concentration of the structure is avoided, and therefore the service life of the wave power generation net cage is prolonged, the adaptability to severe sea conditions is improved, wave mechanical energy can be converted into electric energy, the wind wave resistance effect is excellent, and the manufacturing cost is low.

A wave power device is disclosed for extracting power from water waves and converting it into clean renewable electricity. The wave power device is comprised of three parts. The first part comprises a set of wave collection tubes. The two wave collection tubes are placed in parallel to the advancing wave front and adjacent to each other and offset by one half of a wavelength. The alternating pressure of the waves is converted into an alternating airflow. The second part comprises a rectifier, wherein the rectifier is a system of check valves that turn the alternating airflow output of the collecting tubes into linear flow. The third part comprises a turbine and a generator, wherein the airflow from the rectifier is fed to the turbine which in turn, rotates the generator to produce electricity.

The invention discloses a six-degree-of-freedom built-in vibrator wave power generation device, and belongs to the field of wave power generation. The device is arranged in a floating platform and comprises a shell, a metal vibrator, a first spring suspension assembly, a spring suspension power generation assembly and an electric appliance bin. The metal oscillator is suspended in the shell through a plurality of steel cables and can move in six degrees of freedom relative to the shell, and the first spring suspension assembly is connected with the steel cables at the upper end of the metal oscillator and the shell. The spring suspension power generation assembly comprises a second spring suspension assembly and a generator, the second spring suspension assembly is connected with the steel cable at the lower end of the metal vibrator and the shell, and the generator is installed on the second spring suspension assembly and used for generating power under the vibration effect of the metal vibrator. An energy storage module and a control module are arranged in the electric appliance bin, the energy storage module is used for storing electric energy generated by the generator, and the control module is used for master control of the power generation device. The problem that in the prior art, power is generated only through single-degree-of-freedom vibrator movement, and wave energy cannot be effectively absorbed is solved.

The invention relates to the technical field of ocean energy development and utilization, in particular to a soft rigid arm single-point mooring wave energy power generation device which comprises a floating structure, a mooring support, a hinge power generation module, a mooring leg, a mooring arm, a column hinge shaft and a mooring tower. One end of the mooring leg is connected to the mooring support through one hinge power generation module, the other end of the mooring leg is connected to the lower end of the mooring arm through the other hinge power generation module, the upper end of the mooring arm is connected to the mooring tower through a column hinge shaft, and the mooring tower is fixedly installed on a seabed. The six-degree-of-freedom motion of the floating body can be subjected to energy capture, so that wave energy is converted; the flexible rigid arm single-point mooring system can adapt to the change of the wind wave direction and comply with the weather cock effect; the soft rigid arm single-point mooring system not only can position the wave energy power generation device, but also can convert wave energy, that is, the soft rigid arm single-point mooring system also has a wave energy conversion function.

The invention discloses a wave-light combined energy supply observation buoy for a marine ranch cluster. The wave-light combined energy supply observation buoy comprises a transparent hemispherical shell, a cylindrical shell, a photovoltaic power generation system, an oscillation floater type wave energy power generation device and a mooring system. The photovoltaic power generation unit on the inner surface of the hemispherical shell utilizes sunlight to generate power and inputs the power into the energy storage battery; the bottom of the cylindrical shell is connected with the mooring system and anchored to the seabed; an inertia pendulum power generation module of the wave energy power generation device is installed in two vertical directions, when the inertia pendulum power generation module is excited by random waves, the device captures multi-degree-of-freedom energy in sea waves for power generation, and the multi-degree-of-freedom energy is input into an energy storage battery after being rectified. The energy conversion structure of the power generation device is simple and integrated in the equipment, and the damage of seawater to a core power generation part can be prevented during working; two power generation mechanisms of solar energy and wave energy are combined to realize power generation in different sea areas and under different wave conditions, the energy output efficiency is effectively improved, and the stored electric energy can continuously supply energy to various sensors in the drifting buoy so as to prolong the endurance time of carried observation equipment.

The application is suitable for the technical field of power generation devices, and provides a marine wave power generation device, which comprises a mounting support and further comprises: a first power generation mechanism, the first power generation mechanism comprising a first generator and a runner, a group of runners being arranged on the two sides of the first generator respectively, mounting belts being connected between the two groups of runners, and the runners being sleeved on the first generator; and a second power generation mechanism, the second power generation mechanism comprising mounting boxes, swing blocks and power generation runners, two mounting boxes being symmetrically mounted on the mounting belts, second generators being mounted in the mounting boxes, a power generation runner being fixed on the rotating shaft of each second generator, the two ends of each swing block being mounted on a second generator, and the swing blocks being in transmission connection with the two power generation runners through two groups of ratchet wheel assemblies. The device can effectively convert the kinetic energy generated by waves into electricity, and the cooperation of the two mechanisms improves the power generation efficiency.

The application discloses a positive buoyancy profile float based on a wave energy power generation device and belongs to the technical field of marine observation equipment. The positive buoyancy profile float comprises a flow guide cover, a main sealed cabin, a passive variable buoyancy sealed cabin and an immersed tail cabin, and is completely immersed to present positive buoyancy. The flow guide cover is a streamlined hollow shell body, integrates a communication module and a temperature-salinity-depth sensor, and is connected with the main sealed cabin through a through-cabin piece; the main sealed cabin is divided into a wave power generation cabin and a control cabin by a cabin plate with holes, and is uniformly and stably provided with fin plates outside; the passive variable buoyancy sealed cabin is internally provided with a piston, a compression spring and a limiting block, and the piston adjusts the buoyancy according to water depth pressure; the immersed tail cabin is provided with water inlet holes, and is internally provided with a corrosion-resistant open water motor and an asymmetric double-blade propeller, and realizes vector propulsion through periodical variable speed. When working, the water surface generates electricity through wave heaving and stores energy, when diving, the motor drives the propeller and the piston is compressed to reduce energy consumption, when rising, the motor is stopped and the piston releases the buoyancy, and data is collected throughout the whole process. The application is self-provided with wave energy, has simple structure and high diving efficiency, and is suitable for long-term observation of marine profile data.

The utility model belongs to the field of wave energy power generation, particularly relates to an energy conversion mechanism of a wave energy power generation device, and aims to solve the problem that energy conversion efficiency is reduced when waves are small or large due to the fact that an existing device is often difficult to adjust in a self-adaptive mode according to the amplitude of the waves. In order to solve the problems that some devices are complex in structure, high in maintenance cost and difficult to adapt to wave conditions of different sea areas, the utility model provides the following scheme that the device comprises a mounting box, one side of the mounting box is fixedly connected with a second connecting rod, and one end of the second connecting rod is rotationally connected with a fixing shaft; the outer wall of the fixing shaft is fixedly connected with a plurality of first connecting rods, and the wave energy can be efficiently converted into electric energy. When the arc-shaped block is pushed by waves to rotate, the convex block and the push rod are driven to move, then the rack and gear transmission system is driven to work, and finally the generator is driven to generate electricity. The transmission mode has high energy transmission efficiency and stability.

The invention discloses a positive buoyancy profile buoy based on a wave energy power generation device, and belongs to the technical field of ocean observation equipment. Comprising a flow guide cover, a main sealing cabin, a passive variable buoyancy sealing cabin and a soaking tail cabin, and positive buoyancy is achieved after complete soaking. The flow guide cover is a streamline hollow shell, integrates a communication module and a temperature-salinity-depth sensor, and is connected with the main sealed cabin through a cabin penetrating piece; the main sealed cabin is divided into a wave power generation cabin and a control cabin by a perforated cabin dividing plate, and stable fin plates are uniformly distributed outside the main sealed cabin; a piston, a compression spring and a limiting block are arranged in the passive variable buoyancy sealed cabin, and the piston adjusts buoyancy according to water depth pressure; a water inlet hole is formed in the immersed tail cabin, a corrosion-resistant open water motor and an asymmetric double-blade paddle are arranged in the immersed tail cabin, and vector propulsion is achieved through periodic speed change. During working, the water surface generates electricity and stores energy by means of wave heaving, the motor drives the blades and the piston is compressed to reduce energy consumption during diving, the motor stops and the piston releases buoyancy during rising, and data are collected in the whole process. The device is self-sufficient by wave energy, simple in structure, efficient in ascending and diving and suitable for long-term observation of ocean profile data.

The utility model provides a mechanical composite transmission type wave power generation device, and relates to the technical field of ocean power generation. The base is installed at the bottom end of the interior of the storage barrel in a threaded mode, and disassembly and assembly of the transmission device are achieved; the handle is fixedly connected to the lower surface of the base and used for mounting and dismounting the base; the transmission device is arranged in the storage cylinder and used for transmitting kinetic energy of waves; and the auxiliary device is arranged in the storage cylinder and assists the transmission device. According to the utility model, the problem of inconsistent buoyancy directions during wave energy transmission is simplified by arranging the pulling force of the pulling rope, the problem of power generation capacity change under different wave conditions is solved by changing the included angle between the supporting arm and the rotating arm, the combinability of the structure is stronger, and the power generation capacity and quality can be enhanced by parallel connection.

The invention provides a wave power generation device speed control method and system with low wave parameter dependence. The method comprises the following steps: respectively establishing kinematic models of a wave power generation device in a frequency domain and a time domain; based on the kinematic model, establishing an optimal reference speed generation strategy; based on the kinematic model, establishing a hyper-local model of the wave power generation device; establishing a sliding mode observer according to the hyper-local model; and based on the hyper-local model and the sliding-mode observer, designing a prediction speed control law to calculate a reference electromagnetic force. According to the method, the speed control method without wave model parameters is constructed on the basis of the basic theory of impedance matching in combination with the establishment of the hyper-local model and the sliding-mode observer, the algorithm does not need to update the wave model in real time, the calculated amount in the operation process is greatly reduced, and the calculation efficiency is improved. And the method has higher adaptability to complicated irregular sea conditions.

The invention relates to the technical field of wave power generation, and discloses an aircraft wireless charging platform utilizing compressed gas to generate power, which comprises a power generator, a steam turbine, a deck, a wireless charging assembly and a gas storage tank, a closed cavity for containing the storage battery, the controller, the inverter and the wireless charging controller is formed in the connecting position, the steam turbine is installed at the air outlet end of the air storage tank, a power input shaft of the generator is connected with a power output shaft of the steam turbine, and air cylinders are arranged at the upper end of the air chamber and evenly installed on the peripheral side of the air storage tank in the circumferential direction through supports. The air chamber has buoyancy through the configured inner pipe. According to the aircraft wireless charging platform capable of generating power by using the compressed gas, marine environment detection operation can be performed without using a ship as a platform, the unmanned aerial vehicle can be efficiently charged, long-time resident operation of the unmanned aerial vehicle in the ocean is realized, and resident charging of the unmanned aerial vehicle for ocean detection is solved.