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34 results about "Wind forecast" patented technology
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Methods and systems for generating electrical power
ActiveUS20060279088A1Wind motor controlSingle network parallel feeding arrangementsWind forecastEngineering
A power generation system including a wind turbine generator for generating electrical power, an alternate power source, and a processor programmed to control operation of the alternate power source to control a power output of the alternate power source at least partially based on at least one of a wind parameter, a wind forecast, a wind turbine condition sensor, and a power output of the electrical generator.
Owner:GENERAL ELECTRIC CO
Wind farm inertial response
ActiveUS20180073486A1Prediction is accurate and reliablePromote resultsOptimise machine performanceWind motor controlWind forecastPower grid
The present invention is concerned with an operation of a wind farm with a plurality of wind turbines in view of a dynamic frequency response. According to the invention, dynamic frequency support and power production for all wind turbines in a wind farm are handled concurrently in a single optimization step and taking into account wake effects within the wind farm as well as optional wind forecast information. The dynamic frequency support capability of the entire wind farm is planned in advance according to grid requirements and power system condition changes. While existing methods de-load wind turbines with a static percentage in order to supply additional power when needed, the proposed method incorporates the dynamic frequency support into the optimal operation system of wind farm.
Owner:HITACHI ENERGY SWITZERLAND AG
Systems and methods providing a fuel-efficient rta implementation with uncertain winds
InactiveUS20140088799A1Improve consistencyReducing required fuel burnEnergy saving arrangementsAircraft controlMarkov chainWind forecast
Flight management systems and control methods for meeting a required time of arrival (RTA) with reduced fuel burn. The method can account for probabilistic wind forecast uncertainty in RTA calculations by reformulating the speed and thrust profile problem as a multi-stage stochastic program, using a wind forecast uncertainty model to generate scenario sets for the fuel optimization problem. The method can iteratively calculate a fuel-efficient advised air speed for achieving an RTA over a flight path with an arbitrary number of recourse points.Methods for creating wind forecast uncertainty models applicable to a variety of routes through a given airspace, and for use with the flight management systems and control methods. An example wind forecast uncertainty model can be position-specific, data-driven and based on a Markov chain representing error values between historical wind speed data and forecasted wind speed data long a planned flight route or between an origin-destination pair.
Owner:GEORGIA TECH RES CORP
Methods and systems for generating electrical power
ActiveUS7671481B2Wind motor controlSingle network parallel feeding arrangementsWind forecastEngineering
Owner:GENERAL ELECTRIC CO
Intelligent active power management system for renewable variable power generation
The invention provides an intelligent active power management system for renewable variable power generation. A method and system for intelligently directing output boost capabilities of wind turbine generators (310, 312, 314) operating together in a wind plant (300) has been provided. Selected ones of the wind turbine generators have their own individual boost modes of operation that can provide a limited time increase in power output. This boost capability of the selected individual generators (116) is conveyed to the wind plant control (328) upon request and is used to direct individual boot operations of the generators. In some embodiments, weather forecast information (340) including wind forecast information is used to calculate the generators present and future forecasted boost capabilities.
Owner:GENERAL ELECTRIC RENOVABLES ESPANA SL
Method for controlling wind turbines
ActiveUS20160173017A1Easy to adaptReduce active powerClimate change adaptationSingle network parallel feeding arrangementsWind forecastTurbine
A method for feeding electrical energy into an electrical supply grid by means of a wind turbine or wind farm, where the wind turbine or wind farm converts kinetic energy from wind with variable speed to electrical energy, a wind speed is predicted based on a wind forecast and a reactive power to be fed in is calculated as predicted reactive power based on the predicted wind speed.
Owner:WOBBEN PROPERTIES GMBH
Systems and methods providing a fuel-efficient RTA implementation with uncertain winds
InactiveUS8781651B2Improve consistencyReducing required fuel burnEnergy saving arrangementsAircraft controlMarkov chainWind forecast
Flight management systems and control methods for meeting a required time of arrival (RTA) with reduced fuel burn. The method can account for probabilistic wind forecast uncertainty in RTA calculations by reformulating the speed and thrust profile problem as a multi-stage stochastic program, using a wind forecast uncertainty model to generate scenario sets for the fuel optimization problem. The method can iteratively calculate a fuel-efficient advised air speed for achieving an RTA over a flight path with an arbitrary number of recourse points.Methods for creating wind forecast uncertainty models applicable to a variety of routes through a given airspace, and for use with the flight management systems and control methods. An example wind forecast uncertainty model can be position-specific, data-driven and based on a Markov chain representing error values between historical wind speed data and forecasted wind speed data long a planned flight route or between an origin-destination pair.
Owner:GEORGIA TECH RES CORP
Novel power grid disastrous strong wind early warning method
PendingCN111612315AReduce lossesImproving the Forecasting and Forecasting Ability of Gale DisastersResourcesInformation technology support systemWind forecastPower grid
The invention discloses a novel power grid disastrous strong wind early warning method. The invention relates to the field of power grid wind disaster early warning and disaster prevention and reduction. The method is realized through the following steps: carrying out dynamic downscaling model calculation on original weather forecast data; carrying out gridding post-processing by applying refinedmeteorological data output by dynamic downscaling; meanwhile, performing matching with line tower information; obtaining strong wind forecast data of a grid point to which a line tower belongs; and comparing the actual wind speed with the designed wind resistance grade of the tower, judging the early warning grade, generating the highest grade early warning information according to the ratio of the actual wind speed to the designed wind resistance grade when the actual wind speed in the grid point to which the tower belongs reaches 100% or above of the designed wind resistance wind speed of the tower, and displaying the highest grade early warning information through a power grid GIS platform. According to the invention, through a dynamic downscaling model of the weather forecast data, refined matching of a power grid line tower and grid point data is realized.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
Short-term forecasting method for high-resolution high-altitude wind
ActiveCN112630864AHigh resolutionImprove accuracyWeather condition predictionICT adaptationWind forecastWind field
The invention relates to a short-term forecasting method for high-resolution high-altitude wind, and belongs to the technical field of forecasting of high-resolution high-altitude wind in spaceflight meteorological support. Aiming at the requirements of forecasting and guaranteeing high-resolution high-altitude wind in spaceflight meteorological guarantee, 0.25-20km per 250m layered high-altitude wind forecasting is realized by utilizing an European mid-term numerical forecasting product and Beidou navigation wind measurement data through methods of WRF mode design, high-altitude wind mode product fusion, wind field probability distribution correction, statistical correction and the like. Through the method, layer-by-layer high-altitude wind forecasting can be realized, the accuracy of layer-by-layer high-altitude wind forecasting is improved, and the method is suitable for high-resolution high-altitude wind forecasting.
Owner:中国人民解放军63796部队
Linear tower transmission line wind deflection discharge probability online early-warning method giving consideration to impact from wind randomness
The invention discloses a linear tower transmission line wind deflection discharge probability online early-warning method giving consideration to impact from wind randomness, and the method comprises the steps: building a suspension insulator string wind deflection angle calculation model giving consideration to conductor splitting; calculating the discharge distance of a power transmission line to a linear tower shaped like a wine glass; carrying out the statistics of historical forecast information, comparing the historical forecast information with the actual wind scale of the corresponding historical period, calculating the weak rate, accuracy and strong rate of a forecast wind speed, and the anticlockwise deviation ratio, accuracy and clockwise deviation ratio of a forecast wind direction, and building a forecast wind speed and forecast direction probability distribution model giving consideration to impact from wind randomness; calculating the wind deflection discharge probability of a linear tower transmission line. According to the invention, the method provided by the invention achieves the online prediction of the wind deflection discharge probability of the wind-glass-shaped linear tower transmission line after the wind forecast information is obtained, brings convenience to a power grid operation and scheduling department to know the operation risks of the line in advance, and makes the targeted operation measures for risk reduction.
Owner:STATE GRID JIANGXI ELECTRIC POWER CO +1
Wind farm inertial response
ActiveUS10605229B2Prediction is accurate and reliableOptimise machine performanceWind motor controlWind forecastPower grid
Owner:HITACHI ENERGY LTD
Wind power forecast method
ActiveCN104200290ASolve the high nonlinearitySolve the large amount of calculationForecastingWind forecastEngineering
The invention relates to a wind power forecast method. The method is realized through the way that: taking time points of wind power forecasting as basic points; on the basis of standardization of historical data, taking meteorology of the basic points as core elements to perform proximity polymerization on historical meteorological records; performing decorrelation dimension reduction on the meteorological factors of the meteorological records in the polymerization to obtain independent factors; then building a function relationship from independent factor values to standardized values of the wind power according to the mapping relation of the regularization radial basis function network to realize wind power forecast. By adopting the wind power forecast method provided by the invention, not only can problems of high nonlinearity degree of the 'meteorological factors-wind power' mapping relation and large calculated amount, caused by complexity of the meteorological factors, of the conventional methods be solved, but also the problem of poor sensitivity of the conventional wind power forecast methods on fluctuation modes and ranges of the meteorological factors can be solved, so that the wind power forecast accuracy is improved and a high forecast speed is realized.
Owner:STATE GRID CORP OF CHINA +2
Market trading method based on flexible consumption of abandoned wind power at load side
InactiveCN107565548AFlexible consumptionImprove efficiencyAc network circuit arrangementsWind forecastFlexible scheduling
The invention belongs to the technical field of power system peak regulation, and in particular relates to a market transaction method for flexibly consuming and curtailing wind energy on the load side. Including calculating the proportion of low-valley wind power capacity in wind power installed capacity through load forecasting, start-up mode and incoming wind forecasting, and comparing the corresponding relationship between the low-valley wind power capacity of the power grid and the curtailed wind power, and obtaining the curtailed wind power for the next day through conversion; obtain local energy Satisfy the loads of flexible consumption of abandoned wind power; establish a model for each load to consume abandoned wind power during the low power consumption period; find the optimal time for each local load to consume the abandoned wind power during the low power consumption period, and superimpose the load power of each period, Obtain the function of the optimized electricity consumption and abandonment of wind; according to the newly obtained curve of electricity consumption and abandonment of wind, calculate the maximum consumption of electricity. The invention solves the problem that a large amount of abandoned wind cannot meet the requirement of peak shaving even after rational distribution of output on the power generation side, realizes flexible scheduling on the load side to absorb the abandoned wind power, and greatly improves the efficiency and economy of wind power generation.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +2
System and method for performing wind forecasting
InactiveCN107615099AAccurately determineProgramme controlGeneration forecast in ac networkWind forecastPhysical model
A system and method for performing novel wind forecasting that is particularly accurate for forecasting over short-term time periods, e.g., over the next 1-5 hours. Such wind forecasting is particularly advantageous in wind energy applications. The disclosed method is anchored in a robust physical model of the wind variability in the atmospheric boundary layer (ABL). The disclosed method approachleverages a physical framework based on the unsteady dynamics of earth's atmosphere, and drives forecasting as a function of previously-observed atmospheric condition data observed at the same location for which a wind forecast is desired.
Owner:THE TRUSTEES FOR PRINCETON UNIV
Lightning avoidable detector for detecting wind direction
InactiveCN107765034AEasy to useUse with confidence and boldnessIndication/recording movementSpeed/acceleration/shock instrument detailsWind forecastEngineering
The invention discloses a lightning-proof detector for testing wind direction, which relates to the field of astronomical science and technology. The lightning-proof detector for testing wind direction includes a detector body, the upper surface of the body is fixedly connected with a connecting rod, the upper surface of the connecting rod is fixedly connected with a wind vane support rod, and the middle front surface of the wind vane support rod is fixedly connected with a signal receiving The top of the wind vane support rod is slidably connected with a wind direction sliding sleeve, the side of the wind direction sliding sleeve corresponding to the wind vane support rod is respectively provided with ball grooves, and the bottom of the wind direction sliding sleeve of the wind vane support rod is fixedly connected with a sleeve. The lightning-proof detector for testing the wind direction, through the setting of the signal receiver, angle pointer, wind direction sliding sleeve, ball groove, ball, and trocar, can test the wind direction accurately and is convenient to use. If the wind direction level forecast is accurate in the busy harvest season , will greatly increase people's harvest, which is beneficial to people's increase in harvest, so that farmers can use it with confidence.
Owner:江苏丰禾食品有限公司
Distributed computing system and method for generating atmospheric wind forecasts
PendingUS20210063603A1Reduce error rateEasy to predictMathematical modelsWeather condition predictionEnsemble simulationWind forecast
The technology relates to a distributed computing system and method for generating atmospheric wind forecasts. A distributed computing system for wind forecasting in a region of the atmosphere may include an analog ensemble distilling architecture, a processor, and a memory. The analog ensemble distilling architecture may include a learner configured to train a deep neural network using analog ensemble data and output a distilled analog ensemble capable of producing an improved forecast, a reservoir comprising a cache, a builder comprising a plurality of jobs configured to sample a plurality of slices of an analog ensemble function, and a corpus. The processor may be configured to apply an analog ensemble operator, generate overlapping forecast output files, and generate wind forecasts. The memory may be configured to store one or more components of the analog ensemble distilling architecture.
Owner:LOON LLC
Special terrain strong wind forecasting method
InactiveCN111239857AReduce forecast errorSolve the problem of weak wind forecast in special complex terrainWeather condition predictionFluid speed measurementWind forecastAtmospheric sciences
The invention belongs to the field of weather forecasting, and particularly relates to a special terrain strong wind forecasting method. The method comprises the steps of 1, selecting a place intervalneeding strong wind forecasting; 2, establishing a numerical forecasting station, extracting wind speed forecasting values in the corresponding numerical forecasting stations under the variables of different heights and time; 3, performing secondary forecasting on the corresponding wind speed through polynomial linear regression equation calculation; 4, establishing interval forecasting stations,and measuring the wind starting and stopping time and the wind speed at the upstream interval forecast station; 5, establishing a wind speed equation of upstream and downstream stations, and estimating the wind speed of the downstream interval forecast station to be measured; and 6, combining the wind speed estimated value of the place obtained by the quadratic modeling method with the wind speedestimated value of the place obtained by adopting the upstream and downstream index station method to obtain the accurate strong wind forecast value of the place. According to the method, secondary modeling correction is integrated with upstream and downstream index station methods, so that the forecasting error is effectively and greatly reduced.
Owner:潘新民
Typhoon forecasting method and device
PendingCN114091741AAvoid side effectsComplete Visual InformationWeather condition predictionForecastingWind forecastThree dimensional matrix
The invention discloses a typhoon forecasting method and device. The method comprises the steps of determining the geographic coordinate information of a typhoon center at a to-be-inverted moment, and obtaining a cloud picture of satellites at the to-be-inverted moment; reading geographic coordinate information in the satellite cloud picture and brightness temperature data of a plurality of preset wavebands; determining a coordinate point of the center position of the typhoon in the satellite cloud picture, and constructing a three-dimensional matrix based on waveband brightness temperature data by taking the coordinate point as a center; loading eight trained dichotomy CNN models based on a focal_loss function; 5, inputting the three-dimensional matrix data into the eight dichotomy CNN models, obtaining and outputting corresponding numerical values, wherein the typhoon grade corresponding to the maximum numerical value is the typhoon intensity category at the moment; and calculating the maximum wind speed of the typhoon at the moment according to the obtained numerical value. By adopting the technical scheme of the invention, typhoon forecasting can be carried out more effectively.
Owner:朱新国
Tropical cyclone landing process gale forecasting system based on ensemble forecasting model
ActiveCN113805252AImprove forecasting performanceWeather condition predictionICT adaptationCycloneTropical cyclone
The invention discloses a tropical cyclone landing process gale forecasting system based on an ensemble forecasting model. The system comprises the following steps that a generalized initial value construction module constructs generalized initial values of a plurality of variables which have influence on a forecast quantity, and sends the generalized initial values to an initial value similarity judgment module; an initial value similarity judgment module discriminates the similarity of each single variable contained in the generalized initial value, determines n optimal similar TC and sends the n optimal similar TC to a gale ensemble forecasting module; the gale ensemble forecasting module obtains the n optimal similar TC to form n TC process gale fields, and the n TC process gale fields are gathered to obtain process gale information of the target TC; and the optimal forecasting scheme selection module calculates a forecasting accuracy TS score in a selected gale speed grade threshold by using the process gale information of the target TC, and obtains an optimal forecasting scheme model of the process gale of the target TC according to the forecasting accuracy TS score. The system has good forecasting performance on the gale in the TC landing process.
Owner:CHINESE ACAD OF METEOROLOGICAL SCI
Method for controlling wind turbines
ActiveUS10320315B2Easy to adaptReduce active powerClimate change adaptationSingle network parallel feeding arrangementsWind forecastTurbine
Owner:WOBBEN PROPERTIES GMBH
Method and system for improving reliability of wind forecasting system in double redundancy mode
InactiveCN105305428BEnsure stabilityEnsure safetyClimate change adaptationForecastingWind forecastTower
Owner:DATANG SHANXI RENEWABLE POWER
Typhoon forecasting method, system, readable storage medium and equipment
ActiveCN109444989BReduce preprocessing timeSpeed up the release processHuman health protectionWeather condition predictionWind forecastAtmospheric sciences
The invention relates to a typhoon forecasting method and system, a readable storage medium and equipment, and belongs to the technical field of weather. Global forecasting data of a preset time pointis acquired, a vortex recognition system is mainly adopted for recognizing the global forecasting data and can recognize a vortex structure formed by typhoon, and typhoon path information and intensity information of the global forecasting data can be recognized within a shorter time to achieve typhoon forecasting. According to the method, the vortex recognition system can firstly recognize the typhoon and then acquire typhoon data, compared with a traditional mesoscale numerical forecasting mode, calculation amount of weather forecasting is greatly reduced, the processing time of typhoon forecasting in the earlier stage is greatly shortened, releasing of typhoon forecasting can be accelerated, the global forecasting data of higher accuracy can be fully utilized as far as possible, and the accuracy of typhoon forecasting is improved.
Owner:SUN YAT SEN UNIV
Systems and methods for optimizing scheduling of health checks for wind turbines during periods of low wind speeds
A method for improving power production of a wind turbine includes obtaining, by a controller having one or more processors, wind forecast data of the wind turbine. The method also includes scheduling, by the controller, one or more health checks for one or more components of the wind turbine based, at least in part, on the wind forecast data. Moreover, the method includes implementing, via the controller, the one or more health checks based on the scheduling such that the one or more health checks are implemented during time periods having wind speeds below a predetermined threshold.
Owner:GENERAL ELECTRIC CO
Instantaneous Wind Condition Forecasting Method in Mountainous Areas Based on Computational Fluid Dynamics and Machine Learning
ActiveCN112231979BTake advantage of fine-grained capture capabilitiesTake advantage of refactoring capabilitiesGeometric CADAerodynamic testingAlgorithmWind forecast
Owner:CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP
An online early warning method for wind-biased discharge probability of straight tower transmission lines considering the influence of wind randomness
The invention discloses a linear tower transmission line wind deflection discharge probability online early-warning method giving consideration to impact from wind randomness, and the method comprises the steps: building a suspension insulator string wind deflection angle calculation model giving consideration to conductor splitting; calculating the discharge distance of a power transmission line to a linear tower shaped like a wine glass; carrying out the statistics of historical forecast information, comparing the historical forecast information with the actual wind scale of the corresponding historical period, calculating the weak rate, accuracy and strong rate of a forecast wind speed, and the anticlockwise deviation ratio, accuracy and clockwise deviation ratio of a forecast wind direction, and building a forecast wind speed and forecast direction probability distribution model giving consideration to impact from wind randomness; calculating the wind deflection discharge probability of a linear tower transmission line. According to the invention, the method provided by the invention achieves the online prediction of the wind deflection discharge probability of the wind-glass-shaped linear tower transmission line after the wind forecast information is obtained, brings convenience to a power grid operation and scheduling department to know the operation risks of the line in advance, and makes the targeted operation measures for risk reduction.
Owner:STATE GRID JIANGXI ELECTRIC POWER CO +1
A method for forecasting strong winds in special terrain
InactiveCN111239857BReduce forecast errorSolve the problem of weak wind forecast in special complex terrainWeather condition predictionFluid speed measurementWind forecastAtmospheric sciences
Owner:潘新民
Systems and methods for optimizing scheduling of health checks for wind turbines during periods of low wind speeds
InactiveUS20210115901A1Increase power generationProgramme controlWind motor controlWind forecastHealth check
A method for improving power production of a wind turbine includes obtaining, by a controller having one or more processors, wind forecast data of the wind turbine. The method also includes scheduling, by the controller, one or more health checks for one or more components of the wind turbine based, at least in part, on the wind forecast data. Moreover, the method includes implementing, via the controller, the one or more health checks based on the scheduling such that the one or more health checks are implemented during time periods having wind speeds below a predetermined threshold.
Owner:GENERAL ELECTRIC CO
An Instantaneous Gale Early Warning Method with Automatic Correction
ActiveCN108196316BImprove the accuracy of early warningWeather condition predictionICT adaptationGale warningWind forecast
The invention relates to an automatically corrected instant gale early warning method, which includes steps of acquiring movement direction and movement speed of a target cloud cluster when the targetcloud cluster is existed with a zone of which radar echo intensity value is more than or equal to 55dBZ, and the zone area is more than or equal to the preset area; acquiring modification value W ofmovement direction of the target cloud cluster, modification value K of landform, and wind speed experience value U0 of instant gale generated at 55dBZ; acquiring instant gale forecasted wind speed value S of a monitored point according to the maximum values P, W, K, U0 of the current echo intensity; sending the instant gale warning when the instant gale forecasting wind speed rate S is more thanthe early warning wind speed doorsill value, calculating time T0 of the target cloud cluster arrived at the monitoring point according to the distance between the target cloud cluster and the monitored point and the movement speed of the target cloud cluster; sending alarms at different grades to the monitored point according to the change of time T0.
Owner:GUANGZHOU JIYUYUN INFORMATION TECH CO LTD
Multi-layer wind direction and wind speed probability distribution calculation method for tower wind measurement
PendingCN113468481AScientific Evaluation AnalysisComplex mathematical operations3D-image renderingWind forecastEngineering
The invention relates to a multilayer wind direction and wind speed probability distribution calculation method for tower wind measurement, and belongs to the field of environmental wind field analysis. In order to obtain a multi-layer wind direction and wind speed distribution rule, by taking three-layer wind measurement data of 10 meters, 50 meters and 90 meters of an anemometer tower as an example, a wind direction is fitted by using mixed von mises distribution, a wind speed is fitted by using gamma distribution, and then a layer-by-layer wind direction and wind speed joint probability is obtained according to wind direction and wind speed correlation. Finally, a multilayer wind direction and wind speed probability distribution model of the anemometer tower is established through matpllolib three-dimensional drawing. According to the method, the multilayer wind distribution rule can be scientifically known, the method is suitable for wind energy resource evaluation and engineering structure design, and a foundation can be provided for shallow wind forecast.
Owner:中国人民解放军63796部队
Power grid strong wind safety early warning management and control method and system
ActiveCN111815044AGuaranteed uptimeImprove the accuracy of wind warningForecastingInformation technology support systemData setWind forecast
The invention relates to the technical field of power grid strong wind early warning, and discloses a power grid strong wind safety early warning management and control method and system, and the method comprises the steps of obtaining a strong wind prediction data set of a region where power grid equipment is located in set time; rendering each strong wind forecast data according to the wind speed grade, and superposing and correlating the strong wind forecast data with the power grid equipment geographic information graph to obtain a superposing and correlating graph layer; and determining corresponding line tower strong wind early warning information according to the superposition association layer and the geographic information of each line tower. According to the invention, the geographic information of each line tower is combined with the strong wind forecast data of the corresponding area to generate the line tower strong wind early warning information meeting the actual situation, so that the line tower strong wind early warning precision is effectively improved, accurate early warning support is provided for operation and maintenance personnel, and normal operation of a power grid is ensured.
Owner:ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER +1
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