Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

36 results about "Ocean winds" patented technology

Ocean wind field prediction method based on neural network

The invention provides an ocean wind field prediction method based on a neural network, and belongs to the technical field of ocean wind field prediction.The method comprises the steps that sparse ocean observation data are collected, a spatial covariance matrix is established, the spatial covariance matrix is converted into a graph structure, and then multi-hop neighborhood feature aggregation is conducted through a graph convolutional network; a tensor decomposition algorithm is combined for modeling high-order feature interaction to generate a gridding wind field, a bidirectional long-short-term memory network encoder is used for extracting space-time invariant features, a multi-layer perceptron predictor is used for directly mapping a future multi-step wind field, and a course learning strategy and a Shenchang differential equation boundary layer are matched for correction. The technical problem that sparse ocean observation data are difficult to accurately reconstruct into a high-resolution gridding wind field is solved.
Owner:自然资源部天津海洋中心(自然资源部天津海洋预报台)

High-reliability ocean wind energy and wave energy combined power generation buoy and method

The invention relates to the technical field of power generation buoys, in particular to a high-reliability ocean wind energy and wave energy combined power generation buoy and method.The high-reliability ocean wind energy and wave energy combined power generation buoy comprises a floating type draught fan platform and an oscillating water column and wave energy conversion device, a power generation draught fan is arranged on the floating type draught fan platform, and the oscillating water column and wave energy conversion device is arranged in the floating type draught fan platform; the oscillating water column wave energy conversion device comprises a buoy, an air turbine, a pressure reducing valve and a generator, the buoy is a hollow cylinder with a top plate, the air turbine and the pressure reducing valve are installed on the top plate of the buoy, and the generator is arranged in the air turbine. The high-reliability ocean wind energy and wave energy combined power generation buoy is high in reliability and high in survivability in severe weather.
Owner:JIMEI UNIV

A floating offshore wind farm steady-state simulation method and device, and electronic equipment

The present invention discloses a method and device for simulating a steady-state floating offshore wind farm, as well as electronic equipment. The method comprises the following steps: establishing a wind farm wake model; establishing a wind turbine aerodynamic load model; establishing a wind farm index calculation model; establishing a quasi-static mooring system model; establishing a one-way coupling model between the wind turbine aerodynamic load model and the quasi-static mooring system model; and establishing a one-way coupling model between the quasi-static mooring system model and the wind farm index calculation model, thereby ultimately achieving steady-state simulation of the floating offshore wind farm. The method can effectively simulate the complex interactions between the wind turbine and the mooring system structure, and between the structure and the ocean wind environment, while maintaining a fast simulation speed. This method effectively overcomes the insufficiency of existing simulation methods in meeting the simulation time requirements for floating offshore wind farm control optimization, thereby effectively reducing the time and economic costs of floating offshore wind farm simulation and ensuring the feasibility and reliability of floating offshore wind farm control optimization.
Owner:ZHEJIANG UNIV

High-gain antenna for marine networking communication

The application discloses a high-gain antenna for offshore networking communication, comprising a radiation unit group, a reflecting unit and a metal support; the radiation unit group comprises two radiation units, each radiation unit comprises two special-shaped non-closed metal rings, and the two free ends of the special-shaped non-closed metal rings are connected to each other through a first metal connecting column; the two radiation units are arranged side by side, so that the four first metal connecting columns are arranged in the same plane and in parallel, and the centers of the four first metal connecting columns are connected through two second metal connecting columns; the radiation unit group and the reflecting unit are connected through the metal support. The high-gain antenna for offshore networking communication disclosed by the application realizes a single-feed port feeding structure, supports high-power output, has high-gain characteristics, and realizes low wind resistance and high stability of the whole antenna through a full-metal three-dimensional linear array structure, and is not afraid of ocean wind and waves.
Owner:DALIAN MARITIME UNIVERSITY

Comprehensive evaluation method and system for offshore sea conditions

The invention discloses a comprehensive evaluation method and system for offshore sea conditions, and relates to the technical field of marine hydrology and marine wind energy resource utilization. The method comprises the steps of obtaining an initial data set of a wind field, a shoreline, water depth and a tide level of a sea area to be researched, and generating a prediction data set through a hydrodynamic force and wave bidirectional coupling numerical model; a hierarchical hyper-parameter optimization strategy is adopted to carry out iterative adjustment on model parameters, and the relative error is controlled within 5% in combination with measured data; and fusing a typhoon field and a background wind field to generate extreme working condition data, carrying out comprehensive analysis on characteristic parameters of tides, waves, tidal currents and storm surge on prediction data output by the model, and generating a sea condition comprehensive evaluation report. According to the method, the model parameter calibration efficiency and simulation precision are improved, the survey cost of offshore sea condition evaluation is reduced, and the method can be widely applied to site selection and feasibility analysis of offshore engineering such as offshore wind power and port construction.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GRP

Ocean wind power pile simple structure convenient to install

The utility model relates to the technical field of ocean wind power piles, in particular to an ocean wind power pile simple structure convenient to install, which comprises a supporting table and a plurality of base columns, a center hole is arranged on the supporting table, a first corner hole is arranged on the corner portion of the front side of the supporting table, and a second corner hole is arranged on the hole wall of the rear side of the center hole. An upper limiting inserting hole is formed in the top face of a rear side plate body of the supporting table, a wind power pile column is inserted into the center hole in a matched mode, an inserting hole is formed in a bottom column body of the wind power pile column, a horizontal limiting plate is inserted into the first corner hole, the second corner hole and the inserting hole in a matched mode, and an end limiting plate is fixedly installed at the front end of the horizontal limiting plate. A rectangular hole is formed in a rear side plate body of the horizontal limiting plate, an inserting block is inserted into the rectangular hole and the upper limiting inserting hole in a matched mode, a thick stud is fixedly installed at the bottom end of the inserting block, and a fastening nut is connected to the thick stud in a threaded mode. According to the utility model, assembling and fixing operations are facilitated, the construction difficulty is low, and the installation efficiency is improved.
Owner:ZHONGCHUAN NO 9 DESIGN & RES INST

Scouring protection umbrella-shaped combination device for gravity type foundation of ocean wind turbine and construction method of scouring protection umbrella-shaped combination device

The invention discloses a scouring protection umbrella-shaped combination device for a gravity type foundation of an ocean wind turbine and a construction method of the scouring protection umbrella-shaped combination device. The scouring protection umbrella-shaped combined device comprises a flexible protection piece, a supporting keel, a balance weight anchor chain and a device reinforcement ring. Different from traditional passive scour bearing schemes such as ripraps and caissons, by means of the unique horn-shaped structural design, near-bed water flow paths around the bridge pier are actively changed and guided, the core of a horseshoe-shaped vortex can be effectively lifted away from the surface of a seabed, the horseshoe-shaped vortex is suspended, and therefore the downward scour capacity and the sediment suction and entrapment capacity of the horseshoe-shaped vortex are greatly weakened, and the service life of the horseshoe-shaped vortex is prolonged. The local scouring depth is fundamentally reduced, and the service life of the fan foundation is prolonged; formation conditions and stable structures of horseshoe-shaped vortexes and downflow are destroyed from the physical source, the effect that prevention is better than treatment is achieved, the counterweight anchor chain is arranged, formation of the vortexes is further disturbed, and the protection efficiency is higher.
Owner:HUNAN UNIV OF SCI & TECH +2

Observation data correction method under coupling condition of sea storm and ocean current

The invention discloses an observation data correction method under an offshore wind wave and ocean current coupling condition, and the method comprises the steps: collecting original observation data in a coupling scene through an ocean wind wave current assimilation correction platform, screening target data meeting the coupling condition, and carrying out the initial correction through a wave current vortex energy covariance correction model, and inputting the preliminary correction data into a wind wave and flow combined cost function optimization algorithm to analyze an error source. And adjusting model key parameters and algorithm calculation coefficients according to an error result, performing secondary correction on the data, and finally feeding back the secondary correction data to a platform for comparison verification with historical data. The platform comprises a data acquisition and transmission unit, a model operation unit, an algorithm processing unit, a parameter adjustment unit, a thermal management monitoring unit and a result verification and storage unit, can correlate a wind wave and ocean current energy relationship, integrates thermal management parameters, solves the problem of insufficient correction precision in the prior art, and improves the accuracy of observation data under a coupling condition.
Owner:宁波市自然资源生态修复和海洋管理服务中心(宁波市地质环境站)

A full-physical field simulation test device and method for a carrier-based aircraft fuel fire based on a wind wave coupling effect

PendingCN122282358AThermal stimulationFuel tank
This invention provides a full-physics field simulation test device and method for shipborne aircraft fuel fires based on wind-wave coupling effects, relating to fire safety. The device includes: a shipborne aircraft simulation component comprising an aircraft support, fuel tank, attitude adjustment mechanism, and at least one ammunition simulator; a ship simulation component comprising a fuel pan and a swing mechanism connected to the fuel pan; a sea breeze environment simulation component comprising a water mist spraying mechanism and a fan; and a data acquisition system for collecting data on the wind field, flame, and surface temperature and radiant heat flux of the ammunition simulator under wind-wave coupling conditions, thereby quantifying the degree of thermal stimulation of the ammunition under different operating conditions. The beneficial effects of this invention are: it enables the simulation of dynamic ammunition thermal exposure of shipborne aircraft under ocean wind-wave coupling conditions, filling the research gap in existing technologies that can only simulate static ammunition thermal exposure, and enabling a systematic study of the impact of ammunition attitude changes on the uniformity of thermal exposure.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Double-channel transparent soil test device and method for ocean wind turbine engineering under multi-field coupling load

The invention discloses a dual-channel transparent soil test device and method for ocean wind turbine engineering under multi-field coupling load, and the test device comprises a test platform, a vacuum system, a wave flow generation system, a wind generation system, a laser, a CCD camera and a control system. Wherein the vacuum system, the wave flow generation system, the wind generation system, the laser and the CCD camera are all integrated on the test platform, the wave flow generation system can generate wave flow impact on a transparent soil test sample in the double-channel test box, and the test method comprises the following steps: step 1, preparing the transparent soil test sample in a test groove; 2, transparent soil pore liquid is injected to reach the set height; 3, starting a test; step 4, realizing simulation of different loads according to the research object; and step 5, obtaining a rule of foundation-soil interaction under the wind-wave-flow coupling effect. The method has the beneficial effects that efficient and reliable test technical support is provided for anti-scouring measure optimization and engineering design method verification.
Owner:HUNAN UNIV OF SCI & TECH +2

Self-powered computing buoy

A computing apparatus that is integrated within a flotation module, the system obtaining the energy required to power its computing operations from waves that travel across the surface of a body of water on which the flotation module sets. Additionally, the self-powered computing apparatus employs novel designs to utilize its close proximity to the body of water and / or to strong ocean winds to significantly lower the cost and complexity of cooling their computing circuits.
Owner:LONE GULL HOLDINGS LTD

Anti-corrosion coating for outer wall of tower drum of ocean wind turbine generator and coating method

The invention discloses an anticorrosive coating for the outer wall of a tower drum of an ocean wind turbine generator and a coating method, and relates to the technical field of coating of tower drums of wind turbines. (1) tower drum inspection: inspecting whether the outer surface of the tower drum is damaged or not; (2) surface treatment is conducted, specifically, the outer surface of the tower drum is cleaned, and the surface roughness is increased; (3) coating construction is conducted, specifically, paint spraying treatment is conducted on the outer surface of the tower drum; (4) curing and curing: enabling the coating to complete chemical reaction to achieve design performance; and (5) product detection: detecting the paint surface on the outer surface of the tower drum. Surface treatment is determined as an independent key step, the adhesive force of a coating is ensured from the source, and a long-acting protection foundation is laid; the chemical performance of the coating is ensured to be fully formed through a scientifically controlled curing and curing stage, so that the design performance is realized; and finally, an objective quality closed loop is constructed by quantitative detection indexes such as film thickness and adhesive force, and the construction process is converted into a verifiable and replicable industrial system, so that the project reliability is improved, and the full-life-cycle maintenance cost and risk are remarkably reduced.
Owner:THREE GORGES NEW ENERGY NANTONG CO LTD +1

Battery flow heat management system and method for marine environment all-weather energy storage platform

The invention belongs to the technical field of energy storage batteries, and particularly relates to a battery flow heat management system and method for a marine environment all-weather energy storage platform. The thermal management system comprises a plurality of energy storage prefabricated cabins, and a plurality of energy storage battery modules are distributed in each energy storage prefabricated cabin; the liquid flow cold plates are used for exchanging heat with the energy storage battery modules, and the liquid flow cold plates are arranged below the energy storage battery modules in a one-to-one correspondence mode; the inverter cabin is used for carrying out direct current-alternating current conversion in the inverter cabin and converting the electric energy output by the energy storage battery module into alternating current for external power supply; the heat exchanger is positioned in the seawater and is used for exchanging heat with the seawater; the submersible pump is located in the seawater and used for pumping the liquid flow medium in the heat exchanger; and the battery liquid flow pipe network loop enables the liquid flow medium to circulate in a loop consisting of the liquid flow cold plate, the heat exchanger and the submersible pump. A seawater liquid flow heat exchange structure is provided for an ocean wind and light power generation energy storage battery system, and scale prevention of seawater desalination heat exchange equipment can be achieved.
Owner:QINGDAO UNIV OF TECH

High-stability self-cleaning buoy based on ocean engineering

The invention discloses a high-stability self-cleaning buoy based on ocean engineering, and belongs to the technical field of ocean wind power generation. Comprising a tripod body, a mounting platform is mounted at the upper end of the tripod body, a wind driven generator body is fixedly connected to the center of the tripod body, buoyancy cylinders are arranged at sharp corners of the outer side of the tripod body, connecting columns are fixed to the upper ends and the lower ends of the buoyancy cylinders, and the outer sides of the two connecting columns are connected with the tripod body; a mounting pipe is fixedly arranged on the lower connecting column in a penetrating manner; through linkage cooperation of the sliding assembly, the screw rod and the adjusting assembly, the buoyancy cylinder and the tripod body are adjusted in a self-adaptive mode to keep a relative balance temperature state under large wind wave changes in different directions and different magnitudes. And meanwhile, through linkage matching between the thread sleeve and the screw rod, the cleaning rod is attached to the outer side of the buoyancy cylinder to rotate, and then the adherent objects or marine organisms on the outer side of the buoyancy cylinder are cleaned.
Owner:ZHONGCHENG ELECTRICAL EQUIPMENT (SHANDONG) CO LTD

Ocean wind power single pile turnover lifting appliance

The invention provides an ocean wind power single pile turnover lifting appliance which comprises a main lifting hook module located on one side of an ocean wind power single pile, an auxiliary lifting hook module is arranged on the other side of the ocean wind power single pile, the main lifting hook module comprises a lifting rod, lifting plates with penetrating holes are fixedly arranged on the two sides of the bottom end of the lifting rod, and balance beams are arranged below the lifting plates. Multiple hanging rings are fixedly arranged at the top end of the balance beam. Compared with the prior art, the device has the following beneficial effects that in the process that the whole ocean wind power single pile is adjusted to be in the vertical state from the horizontal state, the L-shaped plate is turned over, finally, the steel wire rope makes contact with the alarm assembly and is squeezed to make contact with the alarm assembly, and after the whole ocean wind power single pile is adjusted to be in the vertical state from the personal state, an alarm is given in time; according to the marine wind power single pile turning-over adjusting device, the accuracy of marine wind power single pile turning-over adjusting is improved, excessive adjusting is avoided, and the situation that the final wanted adjusting structure is affected is avoided, the arranged lifting hooks effectively meet the requirements of marine wind power single piles of different sizes, and good follow-up connecting and lifting work is carried out.
Owner:TANGSHAN MARITIME VOCATIONAL COLLEGE CO LTD

A multi-modal deep learning method for space-borne GNSS-R sea surface wind speed retrieval based on CNN

The application discloses a kind of multi-modal deep learning methods for satellite-borne GNSS-R sea surface wind speed inversion based on CNN, GloWS-Net multi-modal deep learning model is constructed using the DDM features and multiple auxiliary parameters extracted by CNN fusion, comprising the following steps: obtaining satellite-borne GNSS-R observation data, ERA5 wind speed, ERA5 swell height, ERA5 wave direction data and IMERG rainfall data;All the data sets obtained are preprocessed and spatio-temporal matched;Data quality control and data division;GloWS-Net model construction and training;the test data set is input into the trained GloWS-Net model, the inversion wind speed value is obtained, and the result is evaluated.GloWS-Net model includes convolutional layer for extracting effective features from the combination of BRCSDDM and corresponding effective scattering area (effective scattering area), and fully connected layer for processing auxiliary parameters and higher level input parameters.Using the technical scheme of the application, high-precision and high-spatial and temporal resolution global ocean wind speed inversion can be realized.
Owner:KUNMING UNIV OF SCI & TECH

Semi-active tuned mass damper device for suppressing vibrations of a floating marine structure

The application relates to the technical field of vibration control of floating ocean structures, in particular to a semi-active tuned mass control device for inhibiting vibration of a floating ocean structure, which comprises a counterweight, the one-side surface of which is provided with a connecting ring, and the lower end outer surface of which is semispherical; a tuning unit, which comprises a first ball head sleeve, a first ball head steel pole, an extension assembly, a first spring damper, a second ball head steel pole and a second ball head sleeve; and an auxiliary tuning unit, which is arranged below the counterweight and comprises a supporting disc, an arc groove opened in the one-side surface of the supporting disc, a supporting piece connected to one side of the supporting disc, a second spring damper connected to one side of the supporting piece and a driving piece connected to one end of the second spring damper. According to the device, the working state of the device can be adjusted in real time according to different vibration degrees of the floating ocean wind turbine, so that better vibration control effect can be realized, and the device is safe and reliable.
Owner:WUHAN UNIV OF TECH

1*626 ocean wind power platform intelligent mooring cable and manufacturing method thereof

An intelligent mooring cable for an ocean wind power platform is mainly composed of a mooring cable body and cable connectors. The mooring cable body is formed by wrapping a medium-density polyethylene protective layer on a single-strand steel wire rope with the structure of 1 * 626, and the single-strand steel wire rope is formed by twisting a fiber bragg grating sensor for measuring stress and strain and 625 high-strength zinc-plated aluminum rare earth alloy steel wires, wherein the fiber bragg grating sensor is located in the dead center and used for measuring stress and strain. A sensor of the mooring cable body is connected with a submarine cable lead and is subjected to protective casting, and the intelligent mooring cable is manufactured after cooling. Full-time and full-domain stress-strain monitoring of the mooring cable for the ocean wind power platform can be achieved, intelligent development of the ocean engineering mooring field is promoted, the blank of the field is filled up, and the method has high application and prospects.
Owner:GUIZHOU WIRE ROPE

Ocean wind wave and current combined load working condition sampling method

The invention discloses an ocean wind wave and current combined load working condition sampling method, and belongs to the field of ocean engineering structures. According to the method, based on joint distribution of ocean wind wave flow, through distribution characteristic analysis of six actually-measured environmental parameters including wind speed, wind direction, wave height, period, flow velocity and flow direction, joint sampling is carried out, joint working conditions for engineering design and structure operation and maintenance are generated, reasonability of calculation results is verified, and extreme working conditions of extreme sea conditions are considered. According to the method, on the basis of statistical analysis of previous monitoring data, typical wind wave and flow joint distribution sea conditions used for simulation, verification and checking in the ocean engineering design process are obtained, and the workload of simulation calculation can be greatly reduced. Moreover, the method can fuse the actually measured environment load data accumulated after the service of the platform, and improves the accuracy of distribution fitting and the typicality of sea condition sampling. The method fits the field application, is suitable for monitoring the deepwater jacket platform, and is suitable for the ocean engineering fields of design, operation and maintenance of the platform and the like.
Owner:SHENZHEN BRANCH CHINA NAT OFFSHORE OIL CORP +3

Laser radar ocean wind field low signal-to-noise ratio inversion method and system

The invention belongs to the technical field of wind measurement laser radars, and particularly relates to a laser radar ocean wind field low signal-to-noise ratio inversion method and system. Aiming at the problems that a coherent Doppler anemometry laser radar is low in signal-to-noise ratio and the radial wind speed is difficult to estimate accurately under the condition of weak echoes in an ocean measurement environment, the method comprises the following steps: firstly, carrying out standardization and Doppler spectrum conversion on a received complex signal, and extracting an initial radial wind speed; and then, a mixed probability density model composed of Gaussian distribution signal components and uniformly distributed noise components is established, and signal and noise separation is realized. On the basis, an optimal wind speed vector estimation value is determined by constructing a target function and performing grid optimization searching in a two-dimensional wind vector space. According to the method, the influence of the marine atmospheric background noise on the inversion result can be effectively filtered out, and the wind measurement precision and effective detection distance of the laser radar in the low-signal-to-noise-ratio marine environment are remarkably improved.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI

Positioning anti-scouring device for offshore wind turbine inclined pile group foundation and construction method

The application relates to the technical field of ocean wind power, and particularly discloses a positioning and anti-scouring device for an inclined group-pile foundation of an ocean wind turbine and a construction method, wherein the positioning and anti-scouring device comprises a device body and an auxiliary mounting body; the device body comprises an upper supporting plate, a lower supporting plate and a side connecting plate; the middle parts of the upper supporting plate and the lower supporting plate are connected by a supporting wall; a plurality of positioning holes are arranged on the supporting wall and extend into the upper supporting plate and the lower supporting plate in the circumferential direction of the supporting wall; a ventilation hole is arranged on the upper supporting plate; a water injection hole is arranged on the lower supporting plate; the auxiliary mounting body comprises a mounting frame and a mounting base; and the height of the mounting frame is higher than the depth of water. The scheme can realize accurate positioning of the installation and construction of the inclined group-pile foundation, and through the integrated design of the modularization and the scouring protection, synchronous construction and protection are realized, and the scheme has remarkable economic and social benefits.
Owner:HUNAN UNIV OF SCI & TECH

High-stability ocean wind power floating ship structure

The invention discloses a high-stability ocean wind power floating type ship structure, and relates to the technical field of ships. The stability problem is solved. The device specifically comprises a boat body, a wind power generation mechanism carried on the top of the boat body and a balance mechanism arranged on the boat body, the balance mechanism comprises two air bags symmetrically arranged at the bottom of the boat body, the tops of the air bags are fixed and communicated with ventilation pipes, and the two opposite ventilation pipes are connected through a pressure adjusting assembly. And the bottom of the center of the boat body is connected to the seabed through a boat anchor. By arranging the balance mechanism, firstly, the two opposite air bags are used for providing buoyancy for the ship body, secondly, when the wind power generation mechanism is stressed to apply torsional force to the ship body, the inflation and air suction functions of the two air bags can be achieved by controlling current introduced into an electromagnet, and therefore the ship body can be inflated and deflated; and finally, reverse torsion is provided to balance torsion according to the characteristic that the two air bags have the buoyancy difference to support the hull, so that the stability of the hull is ensured, and the reliability of the device is improved.
Owner:NANTONG CHIDING MARINE TECH CO LTD

Self-powered computing buoy

A computing apparatus that is integrated within a flotation module, the system obtaining the energy required to power its computing operations from waves that travel across the surface of a body of water on which the flotation module sets. Additionally, the self-powered computing apparatus employs novel designs to utilize its close proximity to the body of water and / or to strong ocean winds to significantly lower the cost and complexity of cooling their computing circuits.
Owner:LONE GULL HOLDINGS LTD

A method and system for comprehensive evaluation of offshore sea conditions

The application discloses a comprehensive evaluation method and system for offshore sea conditions, and relates to the technical field of ocean hydrology and ocean wind energy resource utilization. The method comprises the following steps: acquiring initial data sets of a wind field, a coastline, water depth and a tidal level of a sea area to be researched, and generating a prediction data set through a numerical model of bidirectional coupling of hydrodynamic force and waves; iteratively adjusting model parameters by adopting a layered hyperparameter optimization strategy, and combining measured data to control the relative error within 5%; generating extreme working condition data by fusing a typhoon field and a background wind field, and comprehensively analyzing characteristic parameters of tides, waves, tidal currents and storm surges of prediction data output by the model to generate a sea condition comprehensive evaluation report. The application improves the model parameter calibration efficiency and simulation accuracy, reduces the survey cost of offshore sea condition evaluation, and can be widely applied to site selection and feasibility analysis of offshore engineering such as offshore wind power and port construction.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GRP

A neural network-based method for predicting ocean wind field

The application provides a neural network-based marine wind field prediction method, and belongs to the technical field of marine wind field prediction.The application collects sparse marine observation data and establishes a spatial covariance matrix, converts the spatial covariance matrix into a graph structure, aggregates multi-hop neighborhood features by using a graph convolution network, models high-order feature interaction by combining a tensor decomposition algorithm to generate a gridded wind field, extracts spatiotemporal invariant features by using a bidirectional long short-term memory network encoder, directly maps future multi-step wind fields by using a multilayer perceptron predictor, and cooperates with a curriculum learning strategy and a neural ordinary differential equation boundary layer correction, so that the technical problem that sparse marine observation data is difficult to accurately reconstruct into a high-resolution gridded wind field is solved.
Owner:自然资源部天津海洋中心(自然资源部天津海洋预报台)

Ocean wind wave and current combined load working condition sampling method

The invention discloses an ocean wind wave and current combined load working condition sampling method, and belongs to the field of ocean engineering structures. According to the method, based on joint distribution of ocean wind wave flow, through distribution characteristic analysis of six actually-measured environmental parameters including wind speed, wind direction, wave height, period, flow velocity and flow direction, joint sampling is carried out, joint working conditions for engineering design and structure operation and maintenance are generated, reasonability of calculation results is verified, and extreme working conditions of extreme sea conditions are considered. According to the method, on the basis of statistical analysis of previous monitoring data, typical wind wave and flow joint distribution sea conditions used for simulation, verification and checking in the ocean engineering design process are obtained, and the workload of simulation calculation can be greatly reduced. Moreover, the method can fuse the actually measured environment load data accumulated after the service of the platform, and improves the accuracy of distribution fitting and the typicality of sea condition sampling. The method fits the field application, is suitable for monitoring the deepwater jacket platform, and is suitable for the ocean engineering fields of design, operation and maintenance of the platform and the like.
Owner:DALIAN UNIV OF TECH

Offshore wind turbine communication reliability guarantee method and system

The application discloses a kind of ocean wind turbine communication reliability guarantee method and system, wherein, method is periodically detected to the communication link between PLC controller and SCADA server, obtains heartbeat signal and link quality parameter, according to the change trend of link quality parameter, communication quality is predicted, and communication state is divided into normal communication state, weak communication state and communication interruption state.Preventive data buffering is started in weak communication state and dynamically adjusted upload strategy;When communication interruption, operating data is stored to local cache database according to emergency level, important level and ordinary level;After communication recovery, breakpoint continuation is transmitted according to priority order, and data consistency check is carried out according to receipt reply.The application can realize the hierarchical reliable transmission of wind turbine operating data in the weak network environment of ocean, eliminate the data loss window caused by passive response, and ensure the priority protection of key safety data.
Owner:CHONGQING QIANWEI SCI & TECH GRP

Fixed type offshore photovoltaic environment load intelligent calculation method considering shielding effect

The invention relates to the field of offshore photovoltaic technology, and discloses a fixed offshore photovoltaic environment load intelligent calculation method considering a shielding effect. Comprising the following steps: S1, constructing a multi-source mapping sample set between ocean wind wave flow environment parameters and load coefficients corrected by a shielding effect; s2, constructing a load coefficient intelligent prediction model, and capturing a complex nonlinear mapping relation on the premise of guaranteeing the rationality of mechanics; s3, the load coefficient output by the neural network is substituted into a load physical formula, and wind, wave and flow load values considering the shielding effect are rapidly and accurately calculated; and S4, inverting a real load coefficient based on actual engineering monitoring data, and performing continuous fine adjustment and optimization on the prediction model to improve the adaptability and prediction precision of the prediction model under different site conditions. According to the scheme, the key load coefficient which is difficult to accurately obtain in a traditional method is determined through deep learning, the mechanical rationality of the result is ensured by relying on a physical model, and reliable support is provided for safe and economic design of a fixed offshore photovoltaic structure.
Owner:SHANDONG SHIP TECH RES INST +3

Ocean current damping device for ocean wind power pile

The utility model relates to the technical field of ocean wind power equipment, in particular to an ocean current damping device for an ocean wind power pile, which comprises a wind power pile column and a fixed platform arranged at the top of the wind power pile column, and a plurality of ocean current damping components which are annularly arranged at equal intervals are arranged outside the wind power pile column. The ocean current vibration reduction assembly comprises an anti-rust vertical guide rail detachably installed on the fixed platform, a sliding sleeve is slidably connected to the anti-rust vertical guide rail, a supporting base is fixedly installed on the side face of the sliding sleeve, a first damping rod is arranged between the supporting base and a top rod body of the anti-rust vertical guide rail, and an arc-shaped flexible buffer plate is arranged on one side of the anti-rust vertical guide rail. A support rod is fixedly installed on the side face of the supporting base, the support rod is hinged to the arc-shaped flexible buffer plate through a plurality of connecting rods, and a second damping rod is hinged between the connecting rod located on the upper portion and the support rod. The damping device has a good damping effect and is convenient to install and maintain subsequently.
Owner:ZHONGCHUAN NO 9 DESIGN & RES INST

Ocean wind wave combined power generation device

This invention discloses a combined marine wind and wave power generation device, relating to the technical field of wind power generation devices. The combined marine wind and wave power generation device of this invention includes a combined power generation foundation installed on a marine slope; a generator set mounted on top of the combined power generation foundation with screws; and a combined wind and wave gas propulsion structure connected to the shaft end of the generator set. The top end of the combined wind and wave gas propulsion structure extends to the marine slope, and the bottom end extends into the ocean. The combined wind and wave gas propulsion structure includes a circulating air box assembly installed inside the combined power generation foundation and connected to the shaft end of the generator set, with the bottom end of the circulating air box assembly extending into the ocean. In this invention, wind energy and wave energy in a marine environment can be used independently or in combination as needed, ensuring efficient and continuous power generation in various environments, thus improving the effectiveness and capacity of marine energy power generation.
Owner:HAILONG PETROLEUM ENG (TIANJIN) CO LTD +1