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

93 results about "Wind resource assessment" patented technology

Wind resource assessment is the process by which wind power developers estimate the future energy production of a wind farm. Accurate wind resource assessments are crucial to the successful development of wind farms.

Wind field wind resource fine simulation method and system based on micro-scale coupling in WRF-CFD

The invention discloses a wind field wind resource fine simulation method, system and device based on WRF-CFD medium and micro-scale coupling and a storage medium, and belongs to the technical field of wind energy resource evaluation.The method comprises the steps that mesoscale meteorological analysis data is collected and calculated through a mesoscale WRF numerical simulation technology; performing fitting processing to obtain a fitting function between the wind speed component and the height; extracting wind speed contour information at a micro-scale modeling boundary based on the mesoscale meteorological analysis data and the fitting function, and determining a boundary condition of a micro-scale CFD model; performing directional calculation and correction on the wind speed of each sector by using a virtual anemometer tower; performing grid division on the wind power plant area to generate a refined grid corresponding to the wind power plant area; and driving numerical simulation of the micro-scale CFD model, and carrying out wind power plant regional range stroke resource evaluation. According to the method, the complex characteristics of the wind field can be comprehensively reflected, the wind resource evaluation precision and the calculation efficiency are remarkably improved, and the resource utilization is optimized.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD RESEARCH INSTITUTE +2

Complex terrain wind resource assessment method based on correction of measured data of anemometer tower

The invention discloses a complex terrain wind resource assessment method based on measured data correction of an anemometer tower, and the method comprises the steps: simulating a complex terrain wind field based on a mesoscale WRF mode, and obtaining the mesoscale data of an innermost layer nested domain containing a wind power plant; according to the mesoscale data obtained in the step S1, microscale computational domain boundary inflow information is extracted, and initial prediction field information of the complex terrain wind field is obtained based on a mesoscale-microscale coupling mode; according to the anemometer tower position and the flow field characteristics, determining an anemometer tower reference height used for data correction and a corresponding observation wind speed and turbulence intensity; and S3, correcting the WRF-CFD numerical simulation result obtained in the step S2 by adopting the related data of the anemometer tower determined in the step S3 to obtain corrected wind speed and turbulence information of the wind field of the complex terrain. According to the method, the medium-micro scale coupling numerical simulation result can be improved, and the accuracy of wind resource evaluation is greatly improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Cross-scale wind power plant wind resource evaluation method based on numerical mode

The invention relates to the technical field of wind power generation, and discloses a cross-scale wind power plant wind resource evaluation method based on a numerical mode, comprising the following steps: step 1, acquiring multi-source observation data of a target area; step 2, screening a WRF optimal configuration scheme adaptive to the regional terrain; step 3, through a WRF power downscaling method, generating annual scale wind resource data as initial wind resource data; 4, performing partition correction on the initial wind resource data to obtain wind measurement data; step 5, constructing a WRF-WFP model coupling the WRF mode and the wind power plant parameterized model; step 6, optimizing WRF lower boundary conditions; 7, simulating the atmospheric flow of the target area, and quantifying the wake flow evolution characteristics of the wind power plant; 8, constructing a wake flow analysis model; and step 9, formulating a collaborative productivity plan of the wind power plant group. The power generation capacity of the wind power plant to be developed can be accurately predicted, and a reliable basis is provided for scientific decision-making of resource distribution development and planning of the million-kilowatt wind power plant.
Owner:SHANGHAI JIAOTONG UNIV

Wind resource assessment report generation method based on large model technology

The invention discloses a wind resource assessment report generation method based on a large model technology. The method comprises the following steps: processing multi-source data, and constructing a domain knowledge base and a fine tuning database; field adaptive RAG enhancement is carried out, professional literatures, historical cases and industry specifications in a field knowledge base are retrieved by adopting a retrieval enhancement generation technology, and wind resource assessment contents meeting technical standards are generated through a multi-modal fusion word vector technology; performing large model fine tuning, and optimizing the generative large model through a gradient-free optimization algorithm Wind-DFO on the basis of a fine tuning database by adopting a field self-adaptive fine tuning strategy; and automatically generating a report, arranging and matching multiple templates through an AI workflow, embedding a data visualization chart, executing verification of a grammar layer, a logic layer and a compliance layer, and outputting a standardized wind resource assessment report. The accuracy, specialty and efficiency of report generation are remarkably improved, and the problems that a traditional method depends on artificial experience, the data utilization efficiency is low, and standardization is insufficient are solved.
Owner:CHONGQING UNIV

Method and system for calculating wind field numerical value of hydromechanics based on high-precision landform

The invention relates to the technical field of wind energy resource evaluation, in particular to a method and a system for calculating a hydrodynamics wind field numerical value based on high-precision landform, and the method comprises the steps: generating a three-dimensional unstructured grid for CFD wind field simulation based on high-precision landform data; analyzing an atmospheric boundary layer structure, and establishing a turbulence calculation model; according to the turbulence calculation model, the influence of atmospheric stability on the mountain flowing wind acceleration factor is researched, and a mountain flowing model is developed; performing CFD wind field simulation according to the three-dimensional unstructured grid and the mountain flow model, and correcting parameters of the mountain flow model; a refined grid is made through terrain elevation data; and according to the refined grid, driving the corrected mountain flow model to carry out numerical simulation, and carrying out wind power plant wind resource evaluation. Through the method, the complex characteristics of the wind field can be reflected more comprehensively, the precision and the calculation efficiency of wind resource evaluation are remarkably improved, and the efficiency and the accuracy of numerical simulation of the complex terrain wind field are improved.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD RESEARCH INSTITUTE +2

Complex terrain wind resource assessment method and system based on CFD enhancement

The invention relates to the technical field of terrain wind resource assessment, in particular to a complex terrain wind resource assessment method and system based on CFD enhancement, and the method comprises the steps: processing terrain, weather and vegetation data, and generating a complex terrain feature vector; constructing bidirectional interaction between a mesoscale meteorological mode and computational fluid dynamics, and iteratively optimizing a flow field; fluid dynamic parameters are calculated through reinforcement learning automatic optimization; turbulence simulation is enhanced by combining the generative adversarial network with large eddy simulation; dynamically allocating resolution according to the grid priority of the multi-feature calculation; the lightweight model pre-judges errors, and after the errors reach the standard, evaluation indexes are calculated to complete wind resource evaluation; the system comprises a multi-source data fusion module, a dynamic coupling module, a parameter optimization module, a reinforced turbulence simulation module, an adaptive grid module and an error prediction and evaluation module, and all the modules cooperate to achieve full-process evaluation. The problems that in the prior art, one-way coupling precision is low, manual parameter selection is low in efficiency, turbulence simulation precision and efficiency are difficult to balance, and static grids are wasted are solved.
Owner:POWERCHINA BEIJING ENG CORP

Multi-source information fusion measurement system combining laser radar data and wind resource evaluation

The invention relates to the technical field of wind resource assessment and wind power plant optimization, and discloses a multi-source information fusion measurement system combining laser radar data and wind resource assessment, and the system comprises a data collection module which is used for collecting laser radar data, synthetic aperture radar data, numerical weather forecast data and ground weather station data; the data preprocessing module is used for carrying out noise filtering, time alignment, space alignment and data calibration on the collected data; the information fusion module is used for dynamically fusing the preprocessed multi-source data and outputting high-precision wind speed and turbulence characteristic distribution; and the wind field modeling and prediction module is used for constructing a dynamic three-dimensional wind field based on the fusion data and performing short-time wind speed prediction. Through multi-source data deep fusion, dynamic wind field modeling and intelligent optimization modules, the comprehensive effects of high-precision wind field evaluation, nonlinear wind speed prediction and fan layout global optimization are achieved.
Owner:CENT CHINA BRANCH OF CHINA DATANG CORP SCI & TECH RES INST CO LTD

CFD analogue simulation-based wind power plant wind resource evaluation method and device

The invention discloses a CFD (computational fluid dynamics) analogue simulation-based wind power plant wind resource evaluation method and a CFD analogue simulation-based wind power plant wind resource evaluation device. The evaluation method comprises the following steps: collecting and processing landform and meteorological data of a wind power plant site; establishing a three-dimensional CFD simulation model of the wind power plant according to the processed landform and meteorological data of the wind power plant site, performing grid division on a wind power plant area, and setting simulation boundary conditions; performing numerical simulation on the three-dimensional CFD simulation model of the wind power plant, and analyzing wind speed field distribution information of each position in the wind power plant; and according to the wind speed distribution information, calculating and evaluating the wind resource condition of the wind power plant to obtain a wind resource evaluation result. According to the technical scheme, through the three-dimensional simulation-evaluation-optimization closed loop with the CFD as the core, the wind speed and turbulence can be accurately quantified in the design stage, so that unit model selection, tower height, blade length and machine position layout are matched with a real wind field, key parameters can be determined at a time, the design period can be shortened, and the operation and maintenance and grid connection cost can be reduced.
Owner:WUHUAN GREEN ENERGY (BEIJING) ENGINEERING TECHNOLOGY CO LTD

Directional calculation method and system for wind resource assessment

The invention relates to the technical field of wind resource assessment, and provides a directional calculation method and system for wind resource assessment, and the method comprises the steps: carrying out the directional calculation of a target region based on geographic data, and obtaining a global directional calculation result; based on the global directional calculation result and the meteorological data, performing comprehensive calculation on the target area to obtain whole-field wind resource data; selecting a plurality of local areas in the target area based on the whole-field wind resource data and the geographic data; for each local region, extracting the wind speed at the boundary of the local region from the global orientation calculation result, fitting to generate a function of the wind speed changing along with the height, compiling the function into a boundary condition, and performing orientation calculation to obtain a local orientation calculation result; and correcting the global orientation calculation result by adopting the local orientation calculation result to obtain a corrected orientation calculation result. And the calculation efficiency is effectively improved while the high precision is kept, so that the wind resource evaluation requirements under the large-range and complex terrain conditions are met.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Complex mountain fan arrangement optimization method

According to the complex mountain fan arrangement optimization method, the positions of fans in an array are adjusted one by one towards one side, the purpose of increasing the angle with the prevailing wind direction is achieved, the wake flow influence is reduced, the generating capacity is calculated and compared, and therefore the optimal fan position is determined. Through the optimization method, the position of the fan can be dynamically adjusted according to the actual situation, the wake flow influence and the shielding effect are reduced, and the generating capacity is improved. According to the method, the wind resource evaluation software micro-siting result and the wake flow adjustment strategy are combined, fan arrangement can be effectively optimized in the complex mountain environment, and the wind energy utilization efficiency is improved.
Owner:POWERCHINA HUADONG ENG CORP LTD +1

Regional wind resource evaluation and prediction method and system based on interpolation method and SARIMA, storage medium and processor

The invention relates to the technical field of wind resource assessment and prediction, in particular to a regional wind resource assessment and prediction method and system based on an interpolation method and SARIMA, a storage medium and a processor, and the method comprises the steps: obtaining regional wind speed data; performing interpolation processing on the data to obtain interpolated wind speed data; according to the interpolated wind speed data, calculating the annual available hours of the wind resources in each space region, and selecting the region with the maximum utilization potential of the wind resources as a target region for wind speed prediction; establishing and training an SARIMA wind speed prediction model; and performing wind speed prediction on the selected region with the maximum wind resource utilization potential by adopting the trained SARIMA prediction model region to obtain wind speed prediction data of the region. According to the method, the plane interpolation method and the SARIMA model are combined, spatial data are reasonably filled through the plane interpolation method, the utilization potential of wind resources is evaluated, the SARIMA model is combined to dynamically predict the time sequence, and the limitation of a traditional method can be overcome.
Owner:GUANGXI POWER GRID CORP

Wind resource measurement and evaluation method and system

The invention discloses a wind resource measurement and evaluation method and system, and relates to the technical field of wind energy resource evaluation, and the method comprises the steps: collecting data through a sensor, and carrying out the preprocessing; performing data fusion based on the preprocessed data; performing wind resource evaluation through the fused data; and carrying out visual display on the evaluation result. Through cooperative work of multiple types of sensors and a dynamic data fusion technology based on weight distribution and Kalman filtering, the problems that in the prior art, wind resource measurement precision is insufficient, complex terrain area measurement adaptability is poor, and the space coverage range is limited are solved; through comprehensive application of wind power density calculation and a wind energy evaluation model, high-precision simulation and quantification results of wind speed distribution, wind power density distribution and wind direction frequency in a target area are provided; through the design of the visualization and interaction module, a user can visually check and dynamically adjust the evaluation data, thereby optimizing the planning and design of the wind power plant.
Owner:HUANENG HUAJIALING WIND POWER CO LTD

Offshore wind plant wind resource assessment method and device, electronic equipment and readable storage medium

The invention discloses an offshore wind power plant wind resource assessment method and device, electronic equipment and a readable storage medium, is applied to the technical field of offshore wind power development, and aims to solve the problem that wind resources of an offshore wind power plant cannot be accurately assessed in the prior art. The method comprises the following steps: acquiring measured data of each anemometer tower in a preset range around an area to be subjected to wind measurement; performing wind resource prediction on a target point location in the area to be subjected to wind measurement by using each group of wind measurement tower actual measurement data to obtain a first predicted average wind speed corresponding to each group of wind measurement tower actual measurement data; determining a wind speed correction coefficient of the target point location according to each first predicted average wind speed; determining a target anemometer tower from each anemometer tower, and correcting the anemometer tower actual measurement data of the target anemometer tower by adopting a correction coefficient to obtain annual wind speed data of a target point location in the area to be subjected to wind measurement; according to the invention, the accuracy of offshore wind plant wind resource assessment can be improved.
Owner:ZHEJIANG ZHENGTAI NEW ENERGY DEV CO LTD

Wind resource assessment method based on millimeter wave wind finding radar

The invention relates to the technical field of wind energy resource assessment, and discloses a wind resource assessment method based on a millimeter wave wind finding radar. The method comprises the steps of collecting wind field data of a target area through a millimeter wave wind measurement radar and performing preprocessing to generate a standardized data set; inputting the data into a prediction model to obtain a wind energy distribution characteristic graph; generating a parameter set by adopting threshold segmentation based on the feature map, and dynamically constructing an evaluation function for simulation evaluation; synchronously collecting actual wind energy data, and calculating a deviation matrix between the actual wind energy data and a predicted value to quantify an evaluation error; performing parameter correction on the prediction model by using the error to obtain an optimized model; and finally, regenerating a feature map by adopting the optimization model and completing resource evaluation. According to the method, through online model correction and dynamic evaluation function construction, closed-loop optimization and data driving in the evaluation process are realized, and the accuracy of an evaluation result and the adaptability to a specific site are improved.
Owner:LIAONING XINNENG DIGITAL INTELLIGENCE TECH CO LTD

Wind energy resource evaluation method and apparatus, computer device, and storage medium

The present application relates to the technical field of new energy. Disclosed are a wind energy resource evaluation method and apparatus, a computer device, and a storage medium. The method comprises: acquiring wind energy resource data, and carrying out qualitative index evaluation of the wind energy resource data to generate a qualitative index confidence coefficient, qualitative indexes comprising a wind resource evaluation result confidence level index and a wind resource stability index; performing quantitative index evaluation of the wind energy resource data to generate quantitative index scores, quantitative indexes comprising a hub height average wind speed index, an average wind power density index, an effective wind speed hour index, a wind shear index, a turbulence intensity index and a wind power density grade index; and acquiring quantitative index weightings and, on the basis of the qualitative index confidence coefficient, the quantitative index scores and the quantitative index weightings, determining a total wind energy resource score. The present application performs overall quantitative evaluation of the rationality and feasibility of wind energy resources, so as to evaluate the wind energy resources in multiple dimensions, improving the evaluation efficiency and evaluation accuracy of the wind energy resources.
Owner:CHINA THREE GORGES INT CORP

Method for quickly speculating high-altitude wind speed based on earth surface observation

The invention discloses a method for quickly speculating high-altitude wind speed based on earth surface observation, which belongs to the technical field of wind resource assessment and comprises the following steps: acquiring earth surface high-frequency ultrasonic data and iron tower wind speed data, extracting earth surface wind speed, friction speed and atmospheric stability, and determining earth surface roughness, boundary layer height and earth turning wind; a wind profile calculation model is selected according to different change conditions of the high-altitude wind speed under the atmospheric stability condition, and wind speed vertical distribution data is calculated by combining the surface roughness, the boundary layer height and the geostrophic wind. According to the method, the problem of insufficient precision in high-altitude wind speed calculation of a traditional method is solved, the change of the wind speed along with the height under different atmospheric stability conditions is accurately reflected, the applicability and reliability of the wind profile model are remarkably improved, and efficient and low-cost technical support is provided for wind power plant site selection, wind turbine design and wind power prediction.
Owner:江苏沿海可再生能源技术创新中心

Mesoscale mode optimization method and device for wind resource assessment in complex terrain area, medium and product

The invention relates to the technical field of wind resource assessment, and provides a mesoscale mode optimization method and device for wind resource assessment in a complex terrain area, a medium and a product, and the method comprises the steps: obtaining high-precision terrain data and high-precision land utilization data, and putting the data into a WRF for calling; selecting a corresponding parameterization scheme in the WRF according to the resolution of the simulation area, generating an initial condition by the WRF, solving an atmospheric physical change process, and obtaining a simulation result of the WRF; and evaluating a simulation effect based on a simulation result of the WRF, and selecting an optimal parameterization scheme. According to the invention, the simulation capability of a near-ground wind field in a complex terrain can be obviously improved.
Owner:CHINA ELECTRIC POWER ENGINEERING CONSULTING GROUP INTERNATIONAL ENGINEERING CO LTD +1

A wind farm wind turbine energy management platform and method

The present invention discloses an energy management platform and method for wind turbines in wind farms, and relates to the field of wind power generation technology, including data acquisition and monitoring systems, wind resource assessment and prediction, energy optimization and fault diagnosis, economic analysis and user interface, safety protection and system integration. The present invention, through the implementation of the data acquisition and monitoring system, makes the collection and monitoring of real-time data more efficient and accurate, enhances the quality of data and management efficiency, and improves the overall operation level of the wind farm. In terms of wind resource assessment and optimization, accurate wind speed and wind direction prediction can be achieved by combining historical data and real-time data. These prediction results provide energy optimization and fault diagnosis functions. The operating status of the wind turbine can be optimized according to the prediction results and grid demand, thereby maximizing the power generation and minimizing the cost. By reducing the downtime of the wind turbine, the economic benefits and operational efficiency of the wind farm are further improved.
Owner:华电(宁夏)能源有限公司新能源分公司

Offshore wind power plant site selection method based on development scene feature representation classification

The invention relates to the technical field of wind resource assessment, and discloses an offshore wind power plant site selection method based on development scene feature representation classification, which comprises the following steps: acquiring data of multiple dimensions such as a wind resource development environment, a construction environment and an operation and maintenance environment, and classifying initial development scenes of an offshore wind power plant in combination with a feature representation method; the defect that a traditional method depends on a single index is overcome; a multi-layer perceptron model is utilized and combined with multi-dimensional data, comprehensive prediction of the wind power plant development environment is achieved, and prediction deviation caused by traditional subjective experience is avoided. Meanwhile, by predicting the productivity and the cost in advance, the development risk and the cost caused by incomplete consideration of environmental factors are avoided. Furthermore, a multi-objective decision-making method is adopted for scoring based on a prediction result, so that multi-objective conflicts such as productivity, cost and risk are comprehensively balanced, site selection one-sidedness caused by a single index in a traditional method is avoided, scientificity and objectivity of decision making are improved, and development risk and cost are reduced.
Owner:CHINA THREE GORGES CORPORATION

Multi-source data fusion-based wind resource assessment method, medium and system

The invention discloses a wind resource assessment method based on multi-source data fusion, a medium and a system. The method comprises the following steps: S1, acquiring project basic information and multi-source data of a wind power project; the project basic information comprises a project name, a geographic position and topographic information; the multi-source data comprises anemometer tower data, mesoscale data and CFD data; s2, preprocessing the anemometer tower data to generate corrected anemometer data; s3, performing multi-source data fusion on the corrected wind measurement data, mesoscale data and CFD data, and performing wind resource parameter analysis to obtain a machine site wind resource evaluation result; s4, performing reduction and uncertainty analysis based on the wind resource evaluation result of the machine site, and calculating the generating capacity; and S5, generating a wind resource assessment report according to the power generation amount calculation result and the project basic information. According to the method, the wind resource state of each machine site in the wind field can be evaluated more accurately.
Owner:CRRC ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE CO LTD

Atmospheric turbulence intensity and gust factor evaluation method, system and device

The invention discloses an atmospheric turbulence intensity and gust factor evaluation method, system and device based on a numerical weather forecast mode, and belongs to the technical field of wind resource evaluation. The method aims at solving the problems that the deviation between a WRF simulation result and actually measured data is large, and WRF output variables cannot be directly used for estimating turbulence intensity and gust factors. A machine learning method is combined to carry out multi-meteorological-element correction on wind speed and turbulence energy simulated by WRF, and then a prediction model for estimating turbulence intensity and gust factors according to parameters such as the wind speed and the turbulence energy is established. The turbulence intensity and the gust factor are accurately estimated. The method provides a more accurate and effective way for wind resource assessment, and has important practical significance for development and utilization of wind energy resources.
Owner:ДУНФАН ЭЛЕКТРИК ВИНД ПАУЭР КО ЛТД +2

Turbulence intensity determination method, device, electronic device and storage medium

The present application discloses a method, device, electronic device, and storage medium for determining turbulence intensity. The method includes: generating a turbulence matrix based on wind speed data, wind direction data, and measured turbulence intensity; eliminating the measured turbulence intensity corresponding to wind speed segments that do not meet the measurement target in the turbulence matrix, and determining the wind speed segment after eliminating the measured turbulence intensity as the target wind speed segment; for each target wind speed segment, fitting multiple wind speed segments in a target sector corresponding to the target wind speed segment with the measured turbulence intensity corresponding to each wind speed segment to obtain a target fitting function, and determining a target correlation coefficient between the target fitting function and the measured turbulence intensity; and determining the target turbulence intensity based on the target correlation coefficient. That is, the solution of the present application determines the turbulence intensity of the wind speed segment where the measurement anomaly occurs, thereby improving the accuracy of turbulence intensity determination and thereby enhancing the accuracy of wind resource assessment in wind farms.
Owner:CHINA RESOURCES POWER TECH RES INST CO LTD

Quantitative evaluation method for generating capacity of wind turbine generator in same wind-solar field

The invention discloses a quantitative evaluation method for generating capacity of a wind turbine generator in a wind-light same field, and relates to the technical field of wind energy resource evaluation and wind-light collaborative optimization. The method comprises the following steps: collecting multi-dimensional meteorological, terrain and photovoltaic array geometric parameter data of a wind-light same-field area, and constructing a three-dimensional digital model; establishing a photovoltaic array-surface roughness dynamic response model based on a weighted fusion algorithm and a turbulent kinetic energy redistribution coefficient; a data interface module is developed, and real-time butt joint between the dynamic roughness model and an on-site monitoring system and between CFD numerical simulation and wind resource evaluation software is achieved; a wind-solar coupling characteristic model is established by combining a fluid mechanics theory and a machine learning algorithm, and the influence of photovoltaic array arrangement on wind speed distribution, turbulence intensity and wind turbine generator power output is quantified; and determining fan arrangement and photovoltaic array parameters through model verification and multi-objective optimization. The method can accurately reflect the dynamic evolution of the surface roughness, and is suitable for the resource evaluation and collaborative design of the same-field project of wind and light.
Owner:NINGXIA HUI AUTONOMOUS REGION ELECTRIC POWER DESIGN INST

Wind measurement data correction method based on flow field simulation

The invention discloses a wind measurement data correction method based on flow field simulation, and the method comprises the following steps: obtaining the current topographic data and historical target data of a target mountainous area; identifying key weather factors according to historical target data; constructing a quantitative relation model of the key weather factors and the surface form change; obtaining a topographic data prediction value of the target mountainous area; constructing a prediction digital elevation model according to the topographic data prediction value; obtaining corrected wind speed prediction data; comparing the corrected wind speed prediction data with the actually measured wind speed data of the field anemometer tower, and calculating the deviation; and constructing a space correction function based on the deviation, and applying the correction function to subsequent wind resource evaluation or fan layout optimization to realize dynamic correction of the wind measurement data. The fan flow field prediction method solves the problems that fan flow field prediction precision has a large error and the prediction result is not high in accuracy.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD

Wind resource assessment method and system considering disaster risk based on reanalysis database

The invention relates to the cross technical field of wind resource assessment and meteorological disaster risk management, in particular to a wind resource assessment method and system considering disaster risks based on a reanalysis database, and the method comprises the steps: constructing a congelation intensity and frequency index through the fusion of an anemometer tower and reanalysis data through an information entropy weight method; obtaining a congelation risk index to divide risk grades; correcting a long-term wind speed sequence, selecting a representative year, calculating theoretical generating capacity, and correcting congelation loss to obtain actual generating capacity; finally, protection suggestions and evaluation results are output in combination with the risk level and the actual power generation amount, and comprehensive quantification of disaster risks and power generation benefits is achieved. According to the invention, the accuracy of disaster risk assessment and wind resource assessment is improved.
Owner:HUANENG (ZHEJIANG) ENERGY DEV CO LTD +2

Graphical User Interface for Wind Farm Wind Resource Assessment Toolchain for Electronic Equipment

1. Name of the product in this design: Graphical User Interface for Wind Farm Wind Resource Assessment Toolchain for Electronic Equipment. 2. Purpose of this design product: an electronic device. 3. The key design point of this design product lies in the graphical user interface. 4. The picture or photo that best illustrates the key points of the design: Main view of Design 1. 5. Designate Design 1 as the base design. 6. Purpose of the graphical user interface: Designs 1 to 3 show the graphical user interface for wind farm planning and design. In the main views of Design 1 and Design 2, the left side of the interface displays specific project information, the middle area displays the location of each project on the map, and the user can select any project on the left. The selected project will display more information in the information box on the left, and the corresponding location of the project on the map will be enlarged. The circle is the user location display style. Design 3 serves the same purpose as Design 1 and Design 2, except that Design 3 additionally displays layer information when the layer button on the right is selected. 7. Other situations requiring explanation: Design 1 and Design 3 request color protection.
Owner:BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD

Wind resource assessment method and system based on optimized energy mode factor

The invention discloses a wind resource assessment method and system based on an optimized energy mode factor. According to the method, data preprocessing, parameter estimation, model verification and final evaluation are integrated into a standardized and repeatable process, so that the consistency and reliability of evaluation results are ensured; an energy mode factor directly related to wind energy is introduced to serve as a core target, a trustworthy region broken line algorithm is adopted to optimize parameter solution for solving, and it is ensured that the finally obtained Weibull parameter can reflect the energy characteristics of wind most truly instead of just the statistical distribution form of the wind speed; due to the improvement of the Weibull parameter estimation precision, the average wind energy power density calculated on the basis of the distribution model is closer to a true value, scientific support can be provided for wind power plant site selection, fan type selection and wind energy potential evaluation, and fine development of wind power projects is promoted.
Owner:CONSTR BRANCH CHONGQING ELECTRIC POWER

Multi-source satellite offshore area wind resource atlas analysis method, device and equipment

The invention provides a multi-source satellite offshore area wind resource atlas analysis method, device and equipment, and the method comprises the steps: carrying out the preprocessing of a multi-source original sea surface wind field, so as to determine a multi-source target sea surface wind field corresponding to a first grid; constructing an average sea surface wind field set based on the wind measurement station data, the multi-source target sea surface wind field corresponding to the first grid and the reanalysis data; training a machine learning model by using the average sea surface wind field set and the sea surface feature data so as to predict a satellite average sea surface wind field of the second grid based on the reanalysis data corresponding to the second grid through the trained machine learning model; and generating a wind resource map corresponding to the research sea area based on the satellite average sea surface wind fields corresponding to the first grid and the second grid. According to the method, the integrity of regional data, the consistency with actual observation and the data accuracy can be effectively ensured, and the difficulty of collecting data in wind resource evaluation and prediction can be reduced.
Owner:BEIJING AEROSPACE HONGTU INFORMATION TECH +1

Wind power plant wind speed time sequence prediction method based on SCADA data correction and CFD modeling

The invention provides a wind power plant wind speed time sequence prediction method based on SCADA data correction and CFD modeling. The wind power plant wind speed time sequence prediction method comprises the steps that S1, historical SCADA data and synchronous reference wind speed data of a built wind power plant are collected and preprocessed; s2, establishing an SCADA wind speed correction model based on the preprocessed data, performing primary correction and secondary correction on the SCADA wind speed, and generating a reduced hub height wind speed time sequence; s3, constructing a CFD computational domain covering the constructed wind power plant and the planned wind power plant area, taking the reduced wind speed time sequence as a time-varying boundary condition, and obtaining a space wind speed transfer function through CFD simulation; and S4, extrapolating the reduced wind speed time sequence to each location point of the planned wind power plant by using a space wind speed transfer function, and generating high-precision wind speed time sequence prediction data. The method is especially suitable for wind resource evaluation scenes of complex fields, and overcomes the limitation that a traditional method is difficult to represent wind resource distribution of the complex fields.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST CO LTD

Mountain wind power global wind resource assessment method

The invention discloses a mountain wind power global wind resource assessment method. The method comprises the following steps: acquiring topographic data and constructing a mountain wind speed vertical gradient reasonable interval; troubleshooting and eliminating an unsuitable area, and marking a risk early warning area; deploying a high-frequency unmanned aerial vehicle cluster and an encrypted micro sensor; long-term dynamic monitoring is carried out, monitoring data are verified, and seasonal special monitoring is synchronously implemented; performing preliminary screening on the wind resource candidate point locations in the monitoring area; performing secondary screening on the wind resource primary screening point locations through wake flow interference checking and construction cost evaluation to form a plurality of candidate point locations; constructing a terrain and weather coupling interpolation model, and inputting monitoring data for interpolation to generate a high-resolution global wind resource map; turbulence influence quantification and high-altitude environment correction are carried out based on a global wind resource map, and candidate point locations are graded through a comprehensive scoring system; and determining the number of installation point locations and the optimal installation point location. According to the evaluation method, the arrangement of an anemometer tower can be canceled, and the evaluation of wind resources in each region of the project is realized.
Owner:THREE GORGES NEW ENERGY (PHOENIX) POWER GENERATION CO LTD