987 results about "Wave power" patented technology

The invention discloses a wave power generation efficiency optimization control method and device based on artificial intelligence. The method comprises the steps that S1, a marine environment data set is collected; s2, forming a preprocessed marine environment data set; s3, according to the preprocessed marine environment data set and the structure parameters of the wave energy power generation system, constructing an optimization objective function; s4, performing global search on the optimization objective function by using a bitter fish optimization algorithm, initializing an optimization population, and determining a plurality of candidate optimal parameter regions; s5, adopting an adaptive jellyfish search algorithm to perform local fine search on the area where the candidate optimal parameters are located, updating and optimizing the key control parameters, and obtaining the key control parameters for further improving the electric energy conversion efficiency; and S6, the key control parameters are applied to the wave energy power generation system, and dynamic closed-loop feedback control is formed. According to the invention, the system is always in an optimal working state, so that the electric energy conversion efficiency is further improved, and the energy loss is remarkably reduced.

The invention discloses an optimal design method for a floating wind power-wave energy multi-energy complementary power generation platform, which comprises the following steps of: constructing an integrated and parameterized system model which is a fully-coupled and parameterized numerical model comprising all key components of the floating wind power-wave energy multi-energy complementary power generation platform; all key design parameters influencing the system performance are set as parameterized variables; establishing a multidisciplinary coupling dynamic simulation model; defining a multi-objective optimization problem including decision variables, objective functions and constraint conditions; the decision variable selects a group of core variables from the parameterized variables as optimization input; and combining the multi-objective optimization problem with a multidisciplinary coupling dynamic simulation model, executing a multi-objective optimization cycle, and generating and deciding a Pareto optimal solution set to obtain typical design schemes with different characteristics. According to the method, the global optimization design of the floating wind power-wave energy multi-energy complementary power generation platform can be realized.

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 discloses a near-shore wave-flow field-sediment coupling simulation method considering a wave breaking nonlinear effect, and belongs to the field of near-shore hydrodynamics, and the method comprises the steps: inputting WRF high-resolution wind field, tide boundary conditions and water depth information, and initializing a wave module, a flow field module and a sediment module; calculating local wave breaking dissipated energy by adopting an improved wave breaking energy dissipation formula to obtain a wave energy density spectrum and a breaking probability; a near-shore flow field is calculated under radiation stress nonlinear correction, and hydrodynamic boundary conditions are updated; calculating sediment suspension and deposition by using a coupling diffusion coefficient, and updating sediment concentration distribution; waves, flow fields and sediment are mutually coupled through loop iteration, and coastal wave-flow field-sediment simulation is achieved under extreme conditions such as typhoons, storm surge and strong storm waves. The method can improve the prediction precision of the wave height, the flow velocity and the sediment concentration under the condition of offshore strong storm waves, and is used for typhoon storm surge prediction, harbor basin deposition evaluation and offshore ecological environment management.

The invention discloses a self-adaptive harmonic current suppression method for harmonic waves of a photovoltaic inverter, which belongs to the technical field of power quality control of a power system and comprises the following steps of: compensating a control strategy through a self-adaptive harmonic component of the photovoltaic inverter by adopting a'detection-reverse injection 'framework; the difference between the residual apparent capacity of the inverter after fundamental wave power supply and the borne harmonic power is used as an adaptive quantity, and the total harmonic distortion rate of the grid-connected point is reduced to the maximum extent on the premise of no overload; the method comprises the following steps: firstly, constructing a real-time harmonic detector based on a cascade generalized integrator; secondly, an inverter impedance model is established from the aspect of impedance stability, and a control parameter stability boundary is determined; then, a self-adaptive harmonic control strategy is introduced into the single-inverter grid-connected system, and a reasonable parameter setting method is provided on the basis of considering stability limitation; afterwards, a capacity-matched harmonic power distribution algorithm is provided for a multi-inverter parallel system, and the efficiency and operation stability of a photovoltaic grid-connected power generation system are improved.

The invention belongs to the technical field of comprehensive utilization of ocean renewable energy sources, and particularly relates to a pilot frequency coupling-based wind wave energy multi-degree-of-freedom broadband control method, which comprises the following steps of: performing frequency domain identification on wind wave environment characteristics, and constructing a wind wave pilot frequency energy coupling model; based on the motion response characteristics of the multi-degree-of-freedom floating platform, designing a pilot frequency energy regulation and conversion mechanism; a full-working-condition dynamic optimization control strategy is adopted, and cooperative operation and energy flow self-adaptive distribution of the wind energy conversion unit and the wave energy conversion unit are achieved. Aiming at the significant difference and relevance of wind energy and wave energy in frequency characteristics, time scale and spatial distribution, a pilot frequency wind wave coupling dynamic model is established, and broadband capture of low-frequency wind-induced and high-frequency wave-induced coupling energy is realized under complex sea conditions through multi-degree-of-freedom motion decoupling and state observation, so that the wind-induced and high-frequency wave-induced coupling energy is obtained. The energy utilization rate, the attitude stability and the structural safety of the system are effectively improved, and good robustness and engineering adaptability are achieved.

The invention discloses a wave energy array development site selection method, which belongs to the field of wave energy development and utilization, and comprises the following steps of: 1) processing geographical distribution data by utilizing a GIS (Geographic Information System) spatial analysis method to obtain a limited development area graph layer; and 2) constructing an evaluation index system of wave energy array development site selection, and carrying out standardization processing to obtain a comprehensive evaluation result. And 3) calculating an offshore distance, and generating a refined developable range layer. And 4) carrying out wave direction statistical analysis in the developable range to obtain an array development range. And 5) on the basis of determining the array development range of the target sea area, determining a potential development site. 6, quantitative analysis and trend analysis of the array development capability are carried out with the potential development site as the center point, and the key development site is determined.According to the method, multi-dimensional evaluation indexes such as environment compatibility, resource endowment, technical feasibility and economic rationality are integrated, and a scientific basis is provided for array development site selection of the wave power station.

The invention discloses a control method and device of a wind driven generator, a terminal and a storage medium, particularly relates to the technical field of operation control of the wind driven generator, and is used for solving the problem that a supporting structure bears violent asymmetric loads due to dynamic response differences of wind and wave load directions in a marine environment in an existing control method. Wind direction and wave direction data are synchronously obtained in real time, the wind direction change rate is calculated, supporting structure vibration signals are analyzed to recognize wave excitation dominant frequency components, and when it is detected that wave excitation energy suddenly changes and the wind direction change rate exceeds the limit, the wind wave direction difference is analyzed; meanwhile, a wave spectrum energy concentration frequency band is determined by analyzing the tower top movement track, the load asymmetry risk level is evaluated by combining the direction difference and the wave energy concentration frequency band, finally, the yaw speed and the variable pitch speed are adjusted in a self-adaptive mode according to the risk level, and accurate recognition and early warning of the wind wave load direction mismatching working condition are achieved. And the operation reliability of the wind driven generator in extreme weather is improved.

The invention relates to a tide level obtaining method and system based on an OWC wave energy conversion device. The method comprises the following steps: constructing an energy loss prediction model in the air chamber; acquiring field incident wave energy, reflected wave energy, water potential energy increment, kinetic energy increment and pneumatic output energy at the current time period; inputting incident wave energy and reflected wave energy into the model to obtain predicted energy loss; and the tide level variation is solved based on the energy conservation relational expression, and the current tide level is calculated. The system comprises an energy loss prediction module, a wave energy acquisition module, a water body energy acquisition module, a pneumatic output acquisition module, an energy loss calculation module, a tide energy solving module and a tide level calculation module, which cooperatively realize the method. According to the scheme, an external tide gauge station is not needed, the local sea area tide level can be inversed in situ, at high frequency and with high precision, the method is suitable for an OWC-breakwater fusion scene, and cooperative operation of a port and ocean energy is supported.

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 a delay compensation control method for a double-vibrator wave energy conversion device, which comprises the following steps of: performing numerical modeling and hydrodynamic analysis on the double-vibrator wave energy conversion device, establishing a time domain motion equation of the double-vibrator wave energy conversion device, and introducing a time delay function into the time domain motion equation to simulate control signal transmission delay; simulating the execution delay of the brake by using a partial differential equation; establishing a state-space equation of the device, replacing a convolution term of the time-domain motion equation with the state-space equation, and calculating to obtain a motion state of the device; a Hamiltonian function is defined to convert a constrained optimization problem into an unconstrained optimization problem, and the Hamiltonian function is solved to obtain an optimal control criterion considering control delay so as to realize maximization of energy capture under the optimal control criterion. According to the method, the operation characteristics of a physical system are truly reflected by introducing control delay, so that the locking control method is effectively implemented in an actual physical device, and the energy capture efficiency of a wave energy conversion device and the reliability of system operation are effectively improved.

The invention discloses a strong anti-overturning power generation device and method based on wind wave combined capture, and the device comprises a four-column type semi-submersible fan platform and a wind driven generator located above the four-column type semi-submersible fan platform, and the four-column type semi-submersible fan platform comprises hollow columns. The bottom of the hollow stand column is fixedly connected with the bottom of the outer side stand column through a horizontal column, a floating wave energy absorption system is arranged on the outer side of the outer side stand column, and the output end of the floating wave energy absorption system is connected with the input end of a power generator system through a bevel gear power generation system in the hollow stand column. One end of the floating wave energy absorption system is connected with the spring system in the hollow stand column; the core technical problems that an existing device is poor in stability, high in cost, low in efficiency, weak in adaptability and the like are solved.

The invention relates to a wave energy conversion device, a control method thereof, a control device and a storage medium, and relates to the field of wave energy power generation. The wave energy conversion device comprises a wave energy conversion unit, a fixed reflecting wall structure and a mooring and anchoring system. The wave energy conversion unit comprises a floater, a power output device and a connecting structure for connecting the floater and the power output device; the static immersion depth of the floater in the initial state is configured to respond to wave excitation and mainly take heaving motion, and the power output device is used for converting the heaving motion of the floater into available energy to be output; the wave energy conversion unit is connected to a seabed or a fixed reflecting wall structure; the fixed reflecting wall structure is arranged on one side of the wave energy conversion unit and is used for reflecting waves with opposite propagation directions, so that the wave energy forms energy accumulation in a local area around the wave energy conversion unit; and the mooring and anchoring system is used for stabilizing the wave energy conversion unit and the fixed reflecting wall structure in a preset water area environment together.

The invention relates to the technical field of wave compensation, in particular to an ocean wave compensation method and system for ship stabilization, and the method comprises the following steps: collecting omnibearing ocean wave monitoring parameters, carrying out multi-time window period division processing and wave energy density quantitative analysis, and generating the wave energy density of each time window; performing nonlinear dynamic behavior mining and dynamic sea wave digital perception modeling according to the wave energy density of each time window, and constructing a sea wave field dynamic model; multi-scale wave feature analysis is carried out based on the sea wave field dynamics model, wave trend evolution prediction is carried out, and a wave trend prediction map is constructed; and identifying current ship state parameters. According to the invention, the gravity center position is automatically adjusted according to the data monitored in real time, and the self-adaptive stability optimization of the ship attitude under different wave conditions is realized.

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 invention relates to the technical field of power generation, in particular to a wave energy collecting device for power generation of a paper folding structure. The wave energy collecting device comprises a rotating disc, a translation assembly, a driving assembly, a fan-shaped column, at least one paper folding friction power generation structure and at least two movable friction power generation structures, and by means of the deformable characteristic of the paper folding structure, the surface contact area of a friction nanometer power generator can be effectively increased in a limited space, and the wave energy collecting device for power generation of the paper folding structure is more stable. Therefore, the charge transfer and output performance is optimized. Meanwhile, the paper folding structure is simple in design, easy to manufacture and integrate, good in flexibility and adaptability and capable of adapting to mechanical movement of different frequencies and amplitudes.

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 provides a coastal erosion rate prediction method, and belongs to the technical field of coastal erosion, and the method comprises the steps: building a three-dimensional seabed grid model, solving a hydrodynamic field through depth average simplification and GPU parallel calculation, and calculating sediment flux distribution based on shear stress discrimination and a high-order windward format. Outputting an erosion mode category and a local erosion strength coefficient by using a coastline erosion feature recognition model comprising a Josephh ring screening layer and a self-organizing mapping projection layer, starting adaptive grid encryption when the local erosion strength exceeds a threshold value, and calling a corresponding parameter set according to an erosion mode to calculate a seabed elevation change and a coastline erosion rate; and a wave energy spectrum reconstruction algorithm is adopted to generate future wave sequence cycle prediction, so that the technical problem that calculation precision and calculation efficiency are difficult to consider in coast erosion rate prediction under a complex wave power condition is solved.

This invention discloses a wave energy and solar energy combined power generation device and its power station, belonging to the field of new energy technology for power generation using renewable energy. It includes floating boxes and photovoltaic panels. Adjacent floating boxes are hinged laterally to the same horizontal axis. The photovoltaic panels are arranged on the surface of the floating boxes at an angle facing south or horizontally. A connecting rod perpendicular to the horizontal axis is hinged to the horizontal axis. A hydro-generator and a passive piston pump for driving the hydro-generator are installed inside the floating box. The piston rod of the passive piston pump is hinged to the connecting rod at a position away from the horizontal axis. When adjacent floating boxes swing up and down around the horizontal axis, the passive piston pump completes the water intake and drainage actions, and drives the hydro-generator during drainage. This invention as a whole can realize the combined power generation of wave energy and solar energy. During the swinging of the floating boxes, the orientation of the photovoltaic panels can remain approximately unchanged, thus ensuring the utilization efficiency of the photovoltaic panels while fully utilizing wave energy.

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 invention discloses a novel wave-driven drifting buoy, and belongs to the field of wave energy utilization of an ocean new energy power generation technology. The drifting buoy comprises a spherical floating body assembly, a harvesting energy power generation device, an electric power storage assembly and a data collecting and monitoring system, the harvesting energy power generation device, the electric power storage assembly and the data collecting and monitoring system are installed in the floating body assembly, the floating body assembly is sealed and floats on the water surface, and the harvesting energy power generation device can efficiently convert six-degree-of-freedom motion generated by the floating body assembly under the action of wave energy into electric energy; the electric power storage assembly is used for storing electric energy of the harvesting energy power generation device and supplying the electric energy to external electric equipment, and the data acquisition monitoring system is used for monitoring and positioning the movement of the drifting buoy and feeding monitoring data and positioning information back to the control end. The drifting buoy solves the problems that an existing wave energy power generation device is insufficient in power generation capacity, large in voltage fluctuation range and insufficient in survivability under complex sea conditions due to high direction sensitivity and narrow-band response limitation, and reliability is reduced due to wave impact and salt spray corrosion.

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.

An air turbine and a power generation device, the air turbine comprising a chamber, a valve and a rotor. The chamber comprises a first opening communicating with the atmosphere; the air pressure in the chamber is adjustable, and the difference between the air pressure in the chamber and the atmospheric pressure comprises a first air pressure difference and a second air pressure difference; the valve is connected with the chamber and is configured to open under the action of the first air pressure difference to form a first air flow by the chamber communicating with the atmosphere through the valve and the first opening respectively, and to close under the action of the second air pressure difference to form a second air flow by the chamber communicating with the atmosphere through the first opening, the directions of the first air pressure difference and the second air pressure difference being opposite; the rotor is configured to rotate under the drive of the second air flow. The air turbine can be used for power generation to convert the kinetic energy of the rotor into electrical energy, for example, the first air pressure difference and the second air pressure difference are obtained by utilizing the fluctuation of waves, and ultimately the wave energy is converted into electrical energy.

The invention discloses a wave energy prediction method based on optimized empirical mode decomposition and deep learning, and the method comprises the steps: optimizing an empirical mode decomposition process through an improved starfish algorithm, obtaining a limited number of intrinsic mode functions through the decomposition of wave data, and predicting each intrinsic mode function obtained through the decomposition through employing an improved model, according to the model, two layers of CNN are fused to enhance extraction of spatial features, three layers of LSTM network are fused to extract time features, a sparse probe and distillation operation are used to optimize a Transform decoding layer, each predicted intrinsic mode function is subjected to superposition reconstruction, and a final wave data prediction result is obtained. And inputting the predicted data into a system dynamics model of the wave energy device, and solving an optimal damping control sequence by combining real-time data and utilizing rolling optimization calculation so as to realize maximum power control.

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 provides a multi-energy cooperative power generation platform integrating wind energy, solar energy, rainwater potential energy and wave energy, and belongs to the technical field of clean energy power generation. The platform comprises a wind power generation assembly, a solar photovoltaic power generation assembly, a multi-stage potential energy power generation assembly, a wave energy power generation assembly, a power storage system, a tower and a cabin. The tower is tubular-column-shaped, the top is provided with a cabin, and the bottom is fixed on the seabed or floats on the sea surface and is used for connecting the power generation assemblies; the wind power generation assembly is located at the upper end of the tower, the solar photovoltaic power generation assembly is located outside the tower, the multi-stage potential energy power generation assembly comprises a multi-stage potential energy power generation device arranged in the tower and a rainwater collection device integrated with the cabin, and the wave energy power generation assembly is used for generating electric energy through wave fluctuation. The electricity storage system is located in the tower to store electric energy. The multi-dimensional space-time complementation is realized by integrating four types of energy, the power supply continuity is improved, the space utilization rate is improved by multiplexing the supporting structure, and the cost is reduced.

The invention discloses a floater array and lever fulcrum adjustable bidirectional wave energy collecting device, and belongs to the technical field of wave energy power generation. The device comprises a carrying platform, an energy capturing device, a lever conversion device and a wave energy conversion device. The energy capturing device is hinged to one end of the lever conversion device through a multi-direction rotating mechanism and comprises a floater array mounting disc and a plurality of gyro type floaters detachably mounted on different sites of the floater array mounting disc, and an adjustable array is formed. The lever fulcrum position of the lever conversion device is adjustably installed on the carrying platform, and the other end of the lever conversion device is in transmission connection with a pull rod of the wave energy conversion device. The wave energy conversion device is of a low-friction sliding sealing ring and guide ring structure. Different wave conditions are adaptively matched through an adjustable floater array and a lever fulcrum, and longitudinal and transverse wave energy is captured by utilizing a lever conversion device and an independent hydraulic cylinder driving mechanism; through a low-friction sealing structure and a guide ring, the mechanical loss is obviously reduced, and the energy conversion efficiency is improved; the device is especially suitable for a low-energy-density wave environment, and the energy capture and conversion efficiency is remarkably improved.

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.