124 results about "Wave power generation" patented technology

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 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 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 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 present application relates to a kind of multi-degree-of-freedom compound wave energy converter, belong to wave power generation technical field.The installation frame and power generation component, power generation component includes electromagnetic generator unit, nanometer friction power generation unit and piezoelectric power generation unit;Electromagnetic generator unit includes gravity pendulum and electromagnetic generator;Gravity pendulum is installed in installation frame around wave energy converter gravity center axis rotation, and one end is connected with the rotor of electromagnetic generator;Nanometer friction power generation unit includes several power generation components containing friction material, power generation component is installed in installation frame, and under the action of external force, relative motion occurs between power generation component, to generate electric energy;Piezoelectric power generation unit includes piezoelectric generator and water flow turbine;The rotor shaft of piezoelectric generator is connected with water flow turbine, and its rotor is made of piezoelectric material, and magnet is respectively arranged on rotor and stator.The present application can be fully and efficiently captured on multiple degrees of freedom to wave, energy conversion efficiency is high and the scope of application is wide.

This invention discloses a multi-axis wave power generation device, which includes a carrier, a main body coupled to the carrier, a wave generator set, a rotating mechanism, a lifting mechanism, and a control unit electrically connected to the rotating mechanism and the lifting mechanism. The wave generator set is coupled to the main body and includes a cantilever. The rotating mechanism is coupled between the carrier and the main body, and the lifting mechanism is coupled between the cantilever and the main body. The control unit is used to control the rotating mechanism to drive the main body to rotate relative to the carrier about a vertical axis to adjust the direction of the cantilever relative to the carrier, and is also used to control the lifting mechanism to drive the cantilever to rotate relative to the main body about a horizontal axis to adjust the angle between the cantilever and the main body.

The high-sensitivity and large-stroke air spring mechanism comprises an air spring body and a pressure storage bin, the air spring body comprises an elastic telescopic part and a sealing plate, the elastic telescopic part comprises a plurality of telescopic units connected in sequence, each telescopic unit comprises a disc-shaped sleeve and an annular edge plate, and the disc-shaped sleeve is connected with the sealing plate. The middle of the side wall of the dish-shaped sleeve is concaved inwards to form a V shape, an inner hole in the middle of the dish-shaped sleeve comprises conical hole sections located on the two end sides and a middle hole section, the dish-shaped sleeve can stretch and deform when subjected to axial force, when the dish-shaped sleeve is in a natural state, the diameter of the maximum diameter position of each conical hole section is D2, the diameter of each middle hole section is D1, and D1 / D2 is smaller than or equal to 1 / 4. Annular edge plates are fixedly arranged at the two ends of the dish-shaped sleeve correspondingly, the annular edge plates of every two adjacent telescopic units are fixedly connected, and sealing plates are connected to the two end sides of the elastic telescopic part correspondingly. And the pressure storage bin is communicated with a spring air cavity in the air spring body through a pipeline.

The utility model provides an underwater multiplication reef for controlling fish swimming direction, which comprises a multiplication reef main body, a wave power generation device is arranged above the multiplication reef main body and floats on the sea surface, anchor chains are arranged on two sides of the wave power generation device, one end of each anchor chain is fixed with the bottom of the wave power generation device, and the other end of each anchor chain is fixed with the other end of the wave power generation device. The other end of the anchor chain is inserted into the seabed through an anchor hook, a bubble generator is installed below the motion path of a swing plate of the wave power generation device, the swing plate of the wave power generation device is directly connected with a water pump plunger of the bubble generator through a rigid connecting rod, and an exhaust pipeline is arranged below the bubble generator. The proliferation reef body comprises a first-layer reef body, a second-layer reef body and a third-layer reef body which are sequentially stacked from top to bottom, the first-layer reef body is a reef body of a cube structure, the interior of the first-layer reef body is hollow, each face of the first-layer reef body is provided with a circular through hole communicated with the interior, the second-layer reef body and the third-layer reef body are both hexagonal reef bodies, and the second-layer reef body and the third-layer reef body are both hexagonal reef bodies. And the hexagonal reef body is hollow.

The present application belongs to the technical field of ocean wave power generation, and particularly relates to a quick detachable and mounted OWC pneumatic structure, which comprises a bottom-opened rectangular air chamber, the side wall of the air chamber is provided with an embedded sliding groove matched with the wharf track, the top is provided with a valve structure, the valve structure realizes three working modes of complete closure, bidirectional conduction and only downward conduction through the cooperative action of the fixed valve piece, the moving valve piece stator and the moving valve piece flap, the air chamber can realize self-adaptive adjustment of the tidal level and quick disassembly preparation through controlling the valve mode and matching the sliding groove sliding along the track combined with the locking mechanism. The present application solves the problems of inconvenient disassembly and inability to adapt to the change of tidal level of the existing mounted OWC device, has the advantages of flexible deployment, convenient maintenance and stable energy efficiency, and is suitable for the green transformation of the existing port.

The invention relates to the technical field of floating breakwaters, in particular to a floating breakwater with a wave power generation function and a fishery breeding function, which comprises a base, a fixing frame is fixedly connected to the top of the base, a plurality of fixing holes are formed in the fixing frame, and a plurality of floating pipes are fixedly connected to the interiors of the fixing holes. The floating breakwater comprises a base, a fixed frame and a floating pipe, the bottom of the floating pipe is provided with a culture assembly, and the culture assembly comprises a blocking net and a throwing pipe. Through arrangement of the floating breakwater main body assembly, when a main body structure composed of the base, the fixed frame and the floating pipe is deployed in a target sea area, the floating pipe provides stable buoyancy through a cavity structure of the floating pipe; precise positioning of the floating pipes is guaranteed through fixing holes evenly distributed in the fixing frame, the base serves as an overall bearing platform to provide stable support for the upper structure, and the integrated design enables the single offshore structure to have the three functions of wave absorption bank protection, water area enclosure and clean energy power generation at the same time.

The utility model relates to the technical field of green energy, in particular to a hollow self-adjusting balance floating type wave power generation device, which is characterized in that an inner support platform is transversely and integrally formed in a cavity in a cavity structure; a flow channel is formed in the position, located below the outer side of the cavity, in the cavity structure, a floating inner cavity is annularly formed in the position, located above the outer side of the cavity, in the cavity structure, and a top end cover is fixed to a top opening of the cavity structure. The water turbine blades are fixed outside the water turbine main shaft; the top end of the input shaft is arranged in an inner cavity of the cavity structure in a penetrating mode and located below the inner supporting platform, and a middle shaft is rotationally installed on the inner bottom wall of the cavity. The control module dynamically adjusts the angles of the water wheel blades to ensure that the equipment can realize energy conversion under different water flow conditions; each module is independently detachable, is convenient to transport, mount and maintain, and adapts to various complex water area environments; water flow parameters and equipment operation state parameters are collected and transmitted in real time through the sensor and the control module, and the equipment is simple in structure, easy to master and high in reliability.

The application discloses a floating oscillating water column type wave power generation device, which comprises a runner chamber I and a protective cap, a nozzle is arranged in the runner chamber I, a flow guide cone is arranged below the nozzle and has the same central axis with the nozzle, the flow guide cone is conical and has a downward pointed end, an impeller is arranged above the nozzle and has the same central axis with the nozzle, a generator is arranged above the impeller and has the same central axis with the impeller, the protective cap is arranged on the top of the runner chamber I, and gaps for air circulation are arranged at the edges of the runner chamber I and the protective cap. The nozzle with the flow guide cone structure is adopted in the application, the flow guide cone can guide the flowing direction of air flow, accelerate the flowing speed of the air flow in the device, and slow down the wave upwelling phenomenon in the runner chamber, thereby protecting the internal components of the device. The protective cap can effectively protect the generator and the controller in the device from the erosion of rainwater and sea air, thereby prolonging the service life of the device.

The application provides a self-propelled reset pneumatic wave power solar power generation charging ship, which comprises at least one pneumatic wave power generation device for converting wave energy into electric energy; the pneumatic wave power generation device comprises a power device for providing power to the pneumatic wave power generation device so that the pneumatic wave power generation device is in a preset area. A photovoltaic assembly is arranged on the pneumatic wave power generation device, and the photovoltaic assembly is used for converting solar energy into electric energy; the photovoltaic assembly comprises a fixed photovoltaic panel and a sliding photovoltaic panel; a UAV energy supplementing system is arranged on the pneumatic wave power generation device; when the UAV energy supplementing system is not working, the sliding photovoltaic panel covers the UAV energy supplementing system; when the UAV energy supplementing system is working, the sliding photovoltaic panel slides to open and expose the UAV energy supplementing system. The comprehensive utilization of wave energy and solar energy is realized, the self-propelled reset function is realized, the power generation charging ship can go to the deep sea, and the survival ability of the power generation charging ship in large waves and extreme sea conditions is improved.

The invention provides a water take-off and landing solar aircraft with wave power generation, which comprises wings, solar panels laid on the upper surfaces of the wings, and storage batteries arranged in the wings; a fuselage forming a cabin for carrying a driver and passengers; the buoy is used for assisting the airplane to take off and land on the water surface; the propeller power motors are installed below the wings and used for pushing blades of the propeller power motors to supply power to the storage battery through wind power when the airplane stops on the water surface; the flexible wave power generation devices are symmetrically distributed below the outer sides of the wings, and when the aircraft floats on the water surface, the flexible wave power generation devices are in a spread state and charge a storage battery in the aircraft with waves as power; when the airplane is ready to take off and land or fly, the airplane is rolled up and rotated to be recycled by the motor; the empennage is used for controlling pitching and yawing of the aircraft; and the foldable solar power generation device is arranged between the two buoys on the rear sides of the wings, and when the airplane floats on the water, the airplane is in a spread state and performs photovoltaic power generation through solar energy.

The application discloses an oxygen increasing device for aquaculture and belongs to the field of aquaculture. The oxygen increasing device for aquaculture comprises a diving seat arranged in water, further comprises: an oxygen discharge paddle which is rotatably arranged outside the diving seat and is in communication with the diving seat to jointly perform an oxygen increasing action, and the oxygen discharge paddle is used for realizing forward movement, backward movement and rotation of the diving seat; a floating disc which is arranged on the upper part of the water surface and is in communication with the diving seat through a connecting pipe; and a wave power generation assembly which is arranged between the diving seat and the floating disc, is driven by waves on the water surface to change the real-time distance between the diving seat and the floating disc to realize a wave power generation action and is used for providing electric energy for the diving seat. The oxygen increasing device is capable of realizing energy self-sufficiency, getting rid of the limitation of traditional solar panels on weather, efficiently converting wave energy into electric energy, optimizing energy distribution and maintaining long-term stable oxygen increasing function.

This invention discloses a combined wind and wave power generation device for offshore power generation in deep-sea typhoon-prone areas, aiming to solve the problems of insufficient dynamic stability and poor power supply continuity in existing technologies. The device includes a semi-submersible wind turbine platform and a wave power generation device. The wave power generation device is located on the jacket of the semi-submersible wind turbine platform's base and includes a lateral dominant vibration damping device, a PTO (Positioning Tolerance) device, and a first transmission rod. The lateral dominant vibration damping device is slidably connected to the jacket along its circumference and integrates an adjustable-angle water baffle. The PTO device is connected to several lateral dominant vibration damping devices via the first transmission rod, which limits the horizontal displacement range of the lateral dominant vibration damping devices. This invention maintains high resilience and efficient suppression of horizontal oscillations under extreme typhoon conditions while also ensuring power generation efficiency.

The present application relates to a kind of integrated oscillating water column type wave energy conversion device's catamaran combination type floating breakwater, single section floating breakwater includes floating body structure and oscillating water column type wave power generation system;Floating body structure includes catamaran pontoon structure, catamaran float structure and underwater wave board;The upper portion of float is equipped with ballast tank, battery compartment and airflow duct, and the lower portion is equipped as first air chamber;Underwater wave board is installed in the lower end of float, forms second air chamber, and second air chamber is communicated with first air chamber and is jointly constituted air chamber structure;Air chamber structure is provided with water inlet in the direction perpendicular to wave incidence;Generator set is arranged in airflow duct, and airflow duct is communicated with external gas and air chamber structure.The catamaran of the present application not only can effectively enhance the weakening effect of floating breakwater to long-period wave, but also can be used twice to transmission wave and diffraction wave;The combination of underwater wave board and float improves the space of air chamber, and enhances the power generation efficiency of wave energy power generation device.

The invention relates to the technical field of wave power generation, in particular to a wave power generation conversion device and a power generation system.The wave power generation conversion device comprises a floating body and a pull rod assembly connected into the floating body in a sliding mode; at least one power generation unit and at least one resonance unit are installed in the floating body, the power generation unit is in power connection with the pull rod assembly, when the floating body floats up and down, the pull rod assembly drives the power generation unit to generate power, and the resonance unit is used for generating power when the floating body floats up and down. According to the wave power generation device, the floating body floating on the water surface is adopted, relative movement is generated between the floating body and the pull rod assembly under driving of up-and-down fluctuation of the waves, the power generation unit is driven by means of the movement to generate power, and therefore the purpose of wave power generation is achieved; and secondly, the resonance unit is matched with the relative movement between the pull rod assembly and the floating body, more wave energy can be captured, the floating body and waves generate resonance, and more energy is captured for power generation.

The present application relates to wave power generation technology field, especially to a kind of floating wave energy power generation device, including energy capture system, power generation system and steering system;Wave energy-gathering fairing gathers wave and forms upward accelerating water flow and extrudes air by inverting horn-shaped structure at wave crest, forms orderly ascending airflow, cooperates with the air energy-gathering fairing of upside-down conical top, forms upward accelerating airflow;Form downward water flow at wave trough, while generating local negative pressure in the device, cooperate with the air energy-gathering fairing of top, form orderly downward airflow;First caisson type airflow / water flow generator utilizes bidirectional airflow or water flow to drive power generation, second caisson type airflow / water flow generator is driven by bidirectional airflow to generate power in the other side airflow passage;The yaw bearing of steering system and fan blade jointly drive second generator conduit to deflect with wind direction to optimize airflow direction, accelerate airflow or water flow. The device can realize the efficient conversion of wave energy and stable power output.

This invention relates to the field of wave energy generation technology, and in particular to a floating wave energy generation device with a variable energy capture structure and a controllable energy conversion system. It comprises an upper float, a power generation chamber, and a lower float connected sequentially from top to bottom. A bottom frame is located below the lower float and is fixed to the lower part of the lower float via a base frame located in its central part. Several resistance adjustment components are arranged around the side walls of the bottom frame. A float is movably fitted onto the outer wall of the upper float. Its structure is rationally designed, employing both mechanical and hydraulic transmission energy conversion methods. The energy conversion method of the power generation device can be changed in real time according to the wave conditions. Under normal wave conditions, a hybrid mechanical and hydraulic transmission method is used to effectively improve transmission efficiency. Under extreme wave conditions, the float submerges below the sea surface, thereby effectively reducing the impact load on the oscillating float, avoiding excessive impact on the equipment, improving equipment reliability, extending equipment lifespan, and solving the problems existing in the prior art.

The application relates to the technical field of ocean wave power generation, and discloses a sea wave multi-stage power generation platform based on UHPC and FRP, which comprises a plurality of foundation pipe columns arranged in an array and a plurality of multi-stage transverse platforms arranged at intervals in the vertical direction, a plurality of penetrating holes are formed in the multi-stage transverse platforms, the plurality of foundation pipe columns are respectively arranged in the corresponding penetrating holes, a stator and a rotor are closed and arranged in the top end of the foundation pipe column, the rotor is in sliding fit with the stator, a sliding float is arranged on the outer wall of the foundation pipe column in a sliding mode, the sliding float is connected with the rotor in the foundation pipe column through an upwardly-extending external transmission frame, and a mooring mechanism is connected to the bottom end of the foundation pipe column. The power generation components are closed in the top end of the pipe column, the external transmission frame is used for transmitting the wave kinetic energy upwards, the core electrical components are prevented from being corroded by seawater, the wind and wave resistance is improved, and long-term stable power generation is guaranteed.

The invention relates to the technical field of wave flow energy power generation, in particular to a wave flow combined power generation platform and a power generation method.Three cylindrical box power generation assemblies are arranged in a cylindrical box, each cylindrical box power generation assembly can generate power through wave energy, and a wave power generation assembly can generate power through wave energy; the ocean current power generation assembly can generate power through ocean current energy, the wave current coupling assembly can output wave energy and ocean current energy in a coupling mode, the lower portion of each floater upper shell is connected with a floater lower shell, and an energy storage synergistic assembly is arranged in each floater lower shell. The power generation method of the wave-flow combined power generation platform comprises the steps that the floater upper shell floats relative to the cylindrical box, and the cylindrical power generation assembly generates power; the wave power generation assembly and the ocean current power generation assembly output power to the coupling assembly to generate power. The device is higher in stability, tidal current energy and wave energy are collected, coupled, superposed and output, and the ocean unit area energy utilization rate is higher.

This invention discloses a raft-type wave energy generation device, comprising: several raft units connected in series; each raft unit includes: a raft shell, a first power generation component, a second power generation component, and a generator; the first power generation component is disposed at one end inside the raft shell, used to convert the elevation difference between adjacent raft units into a co-directional rotational output, driving the generator to generate electricity; the second power generation component is disposed at the other end inside the raft shell, used to convert the oscillation or rotation of the raft unit along its axis into a co-directional rotational output, driving the generator to generate electricity; the end face of the raft shell with the first power generation component is provided with a connecting seat, and adjacent raft units are connected to one end of the input shaft of the first power generation component through the connecting seat to form a series connection. This invention achieves dual-end collaborative capture of multi-degree-of-freedom wave energy, and has advantages such as strong extensibility, continuous and stable power generation, high energy capture efficiency, and convenient maintenance, making it suitable for the construction of large-scale wave energy power plants.

The application discloses a kind of wind wave power generation composite fault intelligent diagnosis method based on Informer-LSTM and transfer learning.The method is by collecting wind wave cooperative power generation system multi-sensor data, after pretreatment, using Informer-LSTM hybrid architecture carries out feature extraction and pattern recognition.Informer uses ProbSparse self-attention mechanism to efficiently capture long-term dependencies in long sequence, significantly reduce computational complexity;LSTM focuses on local time series features, enhance the ability of weak signal identification.Combination realizes the effective decoupling and accurate diagnosis of composite fault.To solve the small sample and cross-condition generalization problem, introduce transfer learning mechanism: pre-training basic model on source domain large-scale data, then transfer to target domain and fine-tune using a small amount of labeled data, combined with MMD field adaptation to further optimize distribution alignment.The method shows high accuracy, strong robustness and good generalization ability in complex marine environment, suitable for real-time intelligent fault diagnosis and operation and maintenance of wind wave cooperative power generation system, has significant engineering application value.

The invention relates to the technical field of wave energy power generation ships, in particular to a controllable oscillating water column type wave energy power generation ship and a method thereof.The controllable oscillating water column type wave energy power generation ship comprises a rear bent pipe ship body, an air turbine, a speed reducer, an opening and closing mechanism, a starting motor and a generator, the rear bent pipe ship body is provided with a hollow channel, and an air inlet of the air turbine communicates with an air outlet of the hollow channel; the opening and closing mechanism comprises an airflow baffle and an opening and closing driving motor, the opening and closing driving motor drives the airflow baffle to shield or open an air outlet of the air turbine, an output shaft of the air turbine is in transmission connection with an input shaft of the generator through a speed reducer, and an output shaft electromagnetic clutch is arranged on the output shaft of the air turbine. The output end of the starting motor is in transmission connection with an output shaft of the air turbine through an output shaft electromagnetic clutch. The controllable oscillating water column type wave energy power generation ship and method are good in control effect, high in reliability, not prone to damage under extreme sea conditions and high in survivability.

The present application belongs to the technical field of marine renewable energy power generation, and particularly relates to a floating wind and wave power generation system control method based on knowledge distillation and partition strategy, comprising: data acquisition and processing; multi-teacher model system construction; knowledge distillation and student model training; partition control strategy design; objective function design; weight adaptive mechanism design; constraint condition definition; upper layer optimization solution; lower layer control instruction execution; dynamic feedback correction mechanism. The method covers all operation and survival conditions of the combined power generation system, on the one hand, reduces the modeling difficulty and complexity of the control model, improves the real-time performance and reliability of the prediction and control, and on the other hand, from the perspective of the engineering application of the combined system, combined with the wind and wave conditions, a partition control strategy is proposed, thereby enhancing the energy utilization efficiency and operation stability of the floating wind and wave combined power generation system in complex sea conditions.