1630 results about "Wave power" patented technology

The invention discloses a multi-scale wave-flow-sediment coupling beach evolution prediction model method, and relates to the technical field of tidal flat landform morphology evolution simulation, comprising the steps of integrating a tidal current power module, a wave motion module and a sediment power module, solving, and predicting landform morphology evolution of a tidal flat area; establishing a coordinate system according to actually measured tidal flat topographic data, obtaining tidal current, wave and sediment data based on a hydrometric station, taking the data as boundary conditions, and importing the boundary conditions into the model; constructing a beach evolution prediction model based on integration of tidal current power, wave motion and sediment power modules, and setting parameters required by each module; a finite difference method is adopted to solve a fluid continuity equation, a wave energy conservation equation, a one-dimensional vertical average suspended sediment convection and diffusion equation and a bottom bed updating equation, and tidal flat section terrains at different stages are obtained, so that the tidal flat section form evolution process under the action of waves and flow is accurately simulated, and compared with a traditional tidal current sediment model, the simulation precision is higher, and the simulation efficiency is higher. And the calculation efficiency can be obviously improved.

The invention discloses a multi-energy complementary integrated device based on wind energy, wave energy and solar energy, and belongs to the technical field of offshore power generation, the multi-energy complementary integrated device comprises a semi-submersible platform, a fan is arranged in the center of the semi-submersible platform, a photovoltaic panel is arranged on the upper plane of the semi-submersible platform, and a wave energy device is arranged in the semi-submersible platform; the bottom surface of the semi-submersible platform is connected with a photovoltaic array, the photovoltaic array comprises photovoltaic floating bodies, photovoltaic panels are arranged on the top surfaces of the photovoltaic floating bodies, and the photovoltaic floating bodies are connected through a swing type wave energy device. By the adoption of the structure, complementarity of solar energy and wave energy in space-time distribution can be complementarily utilized, multi-energy power generation output peak-valley staggered compensation is achieved, the overall output stability of the integrated system is improved, the rectification difficulty is reduced, multi-energy complementation is achieved, and the power generation power of the multi-energy integrated system can be effectively improved. Meanwhile, the self-storage capacity of the system can be improved, and the service cycle is prolonged.

The invention discloses an electric energy metering method under power grid waveform distortion, and particularly relates to the technical field of electric energy metering. The problems of false triggering of an energy compensation mechanism, metering deviation and electricity price settlement risks caused by zero-sequence current or false phase drift easily generated in a multipoint grounding or grounding fault power system in the prior art are solved. According to the anomaly identification and control method integrating zero-sequence current frequency domain characteristic analysis and three-phase phase deviation trend consistency judgment, the false phase deviation state is accurately identified through synchronous sampling, frequency domain analysis and trend consistency evaluation of three-phase voltage, three-phase current and neutral line current, and the false phase deviation state is accurately identified. The error compensation behavior is shielded in real time, the fundamental wave power metering mode is switched to, the electric energy metering accuracy is guaranteed through an error backtracking correction mechanism after recovery, and the anti-interference capability and metering reliability of the electric meter under complex working conditions are effectively improved.

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 belongs to the technical field of island integrated energy systems, and particularly discloses a short-time scale low-carbon optimal scheduling method and system for an island integrated energy system, and the method comprises the steps: constructing an electricity-hydrogen-heat multi-energy coupled island integrated energy system model; constructing a real-time stepped carbon transaction model based on the interval to which the carbon emission quota participating in the carbon emission transaction belongs by using an island integrated energy system model; on the basis of a real-time stepped carbon transaction model, deviation penalty of new energy prediction is considered, one day is divided into n scheduling cycles, n is an integer larger than 1, a target function is constructed with the highest total income of a system as an optimization target, the optimization target is solved, and an optimized scheduling result is obtained. According to the invention, wind energy, solar energy, wave energy, stored energy, a photo-thermal power station and other energy sources are co-scheduled with electricity, hydrogen and water loads to form a dynamically balanced energy system; and high consumption and low carbon emission are kept as far as possible.

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 relates to the technical field of ocean renewable energy power generation, and particularly discloses a floating type wind wave combined power generation system model prediction control method, which comprises the following steps: establishing a nonlinear mathematical model of a floating type wind wave combined power generation system; determining a steady-state working condition point of the system; carrying out linear processing on the nonlinear model; constructing a discrete time prediction model; designing a target function; defining a state and an input constraint condition; performing real-time rolling optimization solution; and dynamically feeding back a correction mechanism. Starting from a wind wave excitation mechanism, on one hand, response in a turbulent wind frequency band is reduced through fan variable pitch control, and on the other hand, response in a wave frequency band is reduced through wave energy power generation device PTO control, so that tower footing load is effectively reduced, and pitching motion of a platform is restrained. Global multi-objective optimization is realized by designing an objective function, defining constraint conditions and solving the objective function.

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 present invention relates to a wave energy power generation buoy with a variable length and angle damping plate and its control method, belonging to the technical field of wave energy power generation buoys. It includes a main floating body, an air turbine and a damping plate. The main floating body is a hollow rear-bent pipe structure. The air turbine is installed at the air outlet at the top of the rear end of the main floating body. The damping plate is installed at the rear end of the main floating body. The damping plate includes an L-shaped fixed plate, a horizontal telescopic plate, a vertical telescopic plate and an inclined movable plate. The L-shaped fixed plate is fixedly connected to the main floating body. The horizontal telescopic plate is horizontally slidably connected to the horizontal side plate of the L-shaped fixed plate. The vertical telescopic plate is vertically slidably connected to the vertical side plate of the L-shaped fixed plate. The upper and lower ends of the inclined movable plate are respectively movably connected to the vertical telescopic plate and the horizontal telescopic plate. The L-shaped fixed plate is provided with a first telescopic driving mechanism for driving the horizontal telescopic plate to move back and forth and a second telescopic driving mechanism for driving the vertical telescopic plate to move up and down. The present invention can improve the wave energy conversion efficiency.

The invention discloses an intelligent optimization control method for a wave power generation device based on an improved MPC, and the method comprises the steps: collecting the wave height, period, flow velocity and device motion posture data in real time through a multi-source sensing module, constructing an exciting force prediction model based on a bidirectional long-short-term memory network, and achieving the precise prediction of the wave exciting force of n control periods in the future; prediction data and real-time feedback signals are input into an improved jellyfish search optimization algorithm, through a two-stage chaotic mapping perturbation mechanism, the convergence speed and the global optimization ability of the algorithm are remarkably improved, and finally optimal electric damping control parameters are output. Compared with a traditional MPC method, the method has the advantages that a feed-forward-feedback composite control framework is formed by fusing deep learning prediction and an intelligent optimization algorithm, so that the energy efficiency conversion efficiency of the power generation system is improved.

The invention discloses a conversion efficiency calculation method and system of a wave energy power generation device, and relates to the field of field test and analysis of the wave energy power generation device, and the method comprises the steps: obtaining a matching data set of a test sea area in a set time period; the matching data set comprises multiple pieces of wave observation data and the average electric power of the wave energy power generation device in the time interval of each piece of wave observation data; performing quality control on the wave observation data in the matched data set by adopting a data quality control algorithm; the angle of the head wave direction of the wave energy power generation device in the set time period is obtained, and a target data set is constructed according to the angle of the head wave direction of the wave energy power generation device in the set time period and the matched data set after quality control; and calculating the conversion efficiency of the wave energy power generation device in the time interval of each piece of wave observation data according to the target data set. The accuracy of the calculation result of the conversion efficiency of the wave power generation device during the whole test period is improved.

The present invention relates to a wave energy power generation buoy with a variable floating drum diameter and a control method thereof, belonging to the technical field of wave energy power generation buoys, and comprising an air turbine, a rigid floating drum, a flexible floating drum and a heaving plate. The rigid floating drum is a cylinder with a fixed annular cavity, an oscillating water column channel is arranged at the center of the rigid floating drum, a ventilation port communicated with the oscillating water column channel is arranged at the top center of the rigid floating drum, the air turbine is fixedly installed at the ventilation port, a plurality of uniformly distributed vertical rods are fixedly connected to the bottom of the rigid floating drum, and the lower ends of the vertical rods are fixedly connected to the heaving plate. The flexible floating drum is a cylinder with a radially variable annular cavity, the flexible floating drum is fixedly sleeved on the outer peripheral side of the rigid floating drum, and an air inflation and extraction device for inflating or extracting air from the flexible floating drum to change its radial dimension is fixedly installed in the fixed annular cavity. The present invention improves the wave energy conversion efficiency.

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.

A wave energy power generation device includes a plurality of up-down moving mechanisms configured to move up and down along a spiral rod under the action of waves, a mass block arranged at a lower part of the power generation device; a buoyancy barrel arranged in the middle of the power generation device, a guide rail arranged on one side of the up-down moving mechanism, and a spiral rod. Through the interaction of the up-down moving mechanism and the spiral rod, the up-down movement of waves can be converted into rotational kinetic energy, a scroll spring is used for storing energy, then the rotating speed is stabilized through an escapement mechanism, a power generation assembly accelerates energy output, and finally a generator is driven to generate power.

The present invention relates to a heaving plate wave energy power generation buoy with a variable cross-sectional area of a water column and a method thereof, belonging to the technical field of wave energy power generation buoys. It includes a buoy body, an air turbine is installed in the air outlet hole at the top of the buoy body, a central pipe located directly below the air outlet hole is arranged at the center of the bottom of the buoy body, a water column cavity communicating with the air outlet hole is formed between the outer side wall of the central pipe and the inner side wall of the buoy body, a heaving plate is fixedly connected to the bottom end of the central pipe, a plurality of uniformly distributed horizontal guide rails are fixedly connected between the upper outer side wall of the central pipe and the middle inner side wall of the buoy body, a telescopic partition plate assembly that divides the water column cavity into an outer water column cavity and an inner water column cavity is slidably installed on the plurality of horizontal guide rails, and a synchronous telescopic driving mechanism for driving the telescopic partition plate assembly to move along the horizontal guide rails is fixed at one end of the horizontal guide rail. The present invention can change the cross-sectional area ratio of the outer water column cavity and the inner water column cavity according to sea conditions, and obtain the optimal wave energy conversion efficiency.

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 integration device based on multi-resonance motion control, and belongs to the technical field of offshore power generation, the wave energy integration device comprises a semi-submersible platform, the semi-submersible platform comprises a plurality of buoys and a central stand column, each buoy is divided into an upper buoy and a lower buoy, the bottom of each buoy is provided with a base, and the central stand column is arranged on the base. A floating fan is arranged on the central stand column, the buoys and the central stand column are connected through a truss, a water tank is arranged in the lower buoy, a water pump is arranged at the bottom of the water tank, a guide rail is vertically arranged in the water tank, and a heaving wave energy device is arranged on the guide rail through a transmission device. By the adoption of the structure, complementary power generation of wind energy and wave energy can be achieved. Triple resonance of the liquid in the water tank, the built-in heaving wave energy device and the balancing weight is achieved, the wave energy power generation efficiency can be improved through multi-resonance motion control, meanwhile, heaving motion of the platform is reduced, and therefore the power generation stability of a draught fan and the safety of an integrated system are improved.

The invention belongs to the technical field of port, coast and offshore engineering breakwaters, and discloses a method and system for evaluating the stability performance of a wave dissipation embankment of a combined seawall. The method comprises the steps of obtaining hydrological data of an area where the combined seawall is located and structural section data of the combined seawall, establishing a wave power numerical model, and performing breakwater body wave climbing simulation and breakwater top wave overtopping simulation on the target combined seawall by adopting the wave power numerical model, the wave force and the wave moment of the breakwater are obtained through calculation, and a wave load index is determined; calculating the self gravity of the wave dissipation embankment of the target combined seawall, the connection force between the wave dissipation embankment and the slope type seawall and the moment of the wave dissipation embankment to the overturning fulcrum to obtain the gravity and the gravity moment of the wave dissipation embankment, and determining the structural index of the wave dissipation embankment; and according to the wave load index and the wave dissipation embankment structure index, the anti-tilting stability and anti-sliding stability safety coefficients are calculated. According to the invention, the accuracy of disaster early warning is improved. The practical application value is realized.

The invention discloses an evaluation method for improving the accuracy of a wave energy device test and a numerical model, and particularly relates to the field of wave energy tests. The method comprises the following specific steps of preliminary parameter acquisition and modeling, multi-scale test design, multi-medium multi-physical field coupling simulation, data fusion and multi-model calibration, dynamic adaptability optimization and performance evaluation standard establishment. According to the invention, multiple technical means such as multi-scale test, multi-physical field coupling simulation, data fusion calibration, dynamic adaptability optimization and the like are combined, so that the performance evaluation capability of the wave energy device can be comprehensively improved; a systematized test and digital-analog optimization process and a preliminary parameter acquisition and modeling method are provided, so that the digital-analog simulation and test accuracy of the wave energy device can be improved; the invention provides a wave energy device evaluation standard and process with higher accuracy and applicability, so as to ensure that digital-analog simulation and physical tests can better reflect the actual performance of a prototype, and provide powerful technical support for the development and optimization of the wave energy device.

The invention discloses a control method of an ocean energy comprehensive power generation system. The system comprises a wave power generation module, a solar power generation module and a wind power generation module, the wave energy power generation module comprises a spine, a floating plate and a lever arm, and the floating plate is connected with the lever arm and can move along with waves so as to drive the lever arm to drive a power generator in the spine to generate power. The method comprises the following steps: acquiring current environment parameters in real time; according to the current environment parameters, the included angle between the spine and the wave direction is adjusted with the purpose of maximizing the comprehensive power generation efficiency of the wave energy power generation module, the solar power generation module and the wind energy power generation module. The power generation efficiency of the wave energy power generation module, the solar power generation module and the wind energy power generation module is comprehensively considered, and the working state of the power generation system is adjusted in time, so that energy can be efficiently collected and converted from the marine environment for the multi-energy power generation system combining wave energy, solar energy and wind energy, and the energy utilization efficiency is improved.

The invention discloses an oscillating water column array fan coupling power generation device capable of adapting to tide level changes, belongs to the field of energy utilization equipment, and solves the problems that in the prior art, the wave energy flow density of partial sea areas is low, and the power generation efficiency of an existing OWC wave energy conversion device is low. According to the technical scheme, an inner cavity is formed in the shared gas chamber; a plurality of oscillating water columns are arranged; each oscillating water column is a hollow tubular column body with openings in two ends, and the opening in one end of each oscillating water column is communicated with the inner cavity of the shared air chamber; and the inner cavity of the shared air chamber is communicated with the power input end of the turbine device. The system has the beneficial effects that multi-element energy utilization is realized, and different natural resources are fully utilized. And the volatility of the power system is reduced. When the output of the wind energy or the wave energy is unstable, the other energy may be in a high-output state, so that the power supply of the system is balanced, and the instability of the power system is reduced.

The invention relates to the technical field of ocean engineering and renewable energy source development and utilization, and discloses an energy gathering type wave energy power generation system adapting to the water level and an application method thereof.The wave energy power generation system comprises a plurality of wave energy devices, and each wave energy device is composed of a wave energy capturing device and a wave energy power generation device; the wave energy power generation device is installed on the upper portion of the wave energy capturing device, the wave energy gathering device is formed by splicing a plurality of energy gathering plates, one side of the wave energy device is fixedly connected with a plurality of connecting rods, one ends of the connecting rods are fixed to one side of the wave energy gathering device, and the lifting adjusting mechanism is provided with a plurality of pile legs. According to the energy-gathering type wave energy power generation system adapting to the water level and the application method thereof, wave energy can be gathered again in a specific area, the input wave energy level of a wave energy device is improved, the output power and the conversion efficiency of the wave energy device are remarkably improved, and the shielding effect generated after the wave energy device is arrayed is avoided.

The invention discloses a power prediction method and equipment of a wave energy device, a medium and a product, and relates to the field of output power prediction.The method comprises the steps that water depth topographic data and wind field data of a target sea area are obtained; solving a wave field at a wave energy device by adopting an improved wave energy balance control equation according to the water depth topographic data and the wind field data; according to the wave height and the wave period of the wave energy device, determining the output power of the wave energy device by adopting a quadratic linear interpolation method, and taking the output power as initial output power; and according to the wave direction of the wave energy device, correcting the initial output power by using a directivity weighting function to obtain corrected output power. The output power prediction accuracy of the wave energy device can be improved.

The invention provides a bistable stochastic resonance-based wave power generation device. The bistable stochastic resonance-based wave power generation device comprises a cylindrical linear generator, a rack and a bistable movement mechanism, the device can be directly installed on various suitable offshore carriers, when the offshore carriers shake under the action of waves, the cylindrical linear generator converts mechanical energy into electric energy, the mover is triggered to do bistable motion through the bistable motion mechanism, and the capture bandwidth and efficiency of the device on random wave frequency are improved. The cylindrical linear generator, the bistable motion mechanism with the spring as a main tool and the rack are combined, wave energy power generation based on the bistable principle of potential energy trap crossing motion is achieved, the capture bandwidth of the device for random wave frequency is widened, the energy capture efficiency when the wave frequency is low is improved, and the device is suitable for large-scale popularization and application. The conversion efficiency of the power generation device to random wave energy is improved, and the adaptability of the device to external continuously-changing sea conditions is improved.

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 an oscillating floating body wave energy device based on multiple asymmetric stabilization, and belongs to the technical field of offshore wind power generation. Comprising a semi-submerged platform, a floating fan is arranged in the center of the semi-submerged platform, a wave energy device is arranged in the semi-submerged platform, the wave energy device comprises a shell, a sliding rod in the vertical direction is arranged in the shell, and a balancing weight, a power generation mechanism, a limiting stopper and a sliding rail are sequentially arranged on the sliding rod from top to bottom. By the adoption of the structure, wind energy and wave energy can be complementarily utilized for power generation, meanwhile, the three movable oscillation floating body wave energy devices are utilized for absorbing the wave energy acting on the draught fan floating type platform, the positions of the oscillation floating body wave energy devices are adjusted, PTO systems with different masses and rigidities are installed, and different PTO dampers are adjusted; and the wave resistance and stabilization capability of the floating fan and the survival capability of the oscillation floating body wave energy device are effectively improved.

The invention discloses an integrated coupling calculation method and system for a floating type wind wave combined power generation device based on Modelica-AeroDyn-MoorDyn, and relates to the technical field of offshore wind power generation, and the method comprises the steps: constructing a floating type fan model and a wave energy floater model which are highly matched with the actual operation of the floating type wind wave combined power generation device through Modelica; the aerodynamic load can be accurately loaded to the floating fan in an omnibearing mode, meanwhile, the attachment mode between the wave energy floater and the floating fan is established, the freedom degree of the floater can be freely released, enough precision is provided for reliability and stability evaluation of mooring based on the concentrated mass method by combining MoorDyn, and based on collaborative simulation of Modelica-AeroDyn-MoorDyn, the reliability and stability of the floating fan can be evaluated. The simulation result of the multi-floating-body coupling response obtained on the whole can truly reflect the operation state of the floating type wind and wave combined power generation device, and the coupling reliability is improved.

The invention relates to a self-sinking type wave energy glider which comprises a water surface boat body and an underwater wave energy propeller, the water surface boat body and the underwater wave energy propeller are connected through an umbilical cable, the water surface boat body is of a hollow structure, and a cavity is formed in the water surface boat body; the exhaust assembly is connected with the cavity and used for exhausting gas in the water surface boat body; the water inlet assembly is connected with the cavity and used for sucking water into the water surface boat body from the outside; and the control unit is in signal connection with the exhaust assembly and the water inlet assembly. Through ingenious design of the water surface boat body of the wave energy glider, rapid self-sinking of the wave energy glider can be achieved only by adding components such as the water pump and the electromagnetic valve. And meanwhile, the buoyancy material in the water surface boat body can realize normal discharge of air in the self-sinking process, so that reliable self-sinking of the water surface boat body is ensured. The wave glider has multiple protection measures, and self-sinking of the wave glider cannot be caused even if a certain part is damaged or malfunctions.

The invention relates to the technical field of unmanned ships, and discloses a novel wave-light complementary power generation-based multifunctional unmanned operation and maintenance ship, which comprises a ship body, an environment monitoring mechanism, an energy recovery mechanism, a full-rotation electric propulsion device, an unmanned aerial vehicle landing platform, an ROV automatic laying and recovery mechanism and an AUV automatic laying and recovery mechanism, the energy recovery mechanism comprises two clean energy power generation devices including wave energy power generation devices and solar power generation devices, the wave energy power generation devices are installed on the two sides of the ship body, the solar power generation devices are installed on a deck of the ship body, and clean energy is stored and redistributed through a storage battery in the cabin. An energy recovery mechanism of the device comprises wave energy power generation devices installed on the two sides of the ship body and a solar power generation device installed on the deck, comprehensive utilization of wave energy and solar energy can be achieved, the utilization rate of clean energy is increased, and the requirement for long endurance of the unmanned operation and maintenance ship is met.