335 results about "Wind measurement" patented technology

The invention discloses a laser radar-assisted wind power generation wind shear modeling method, and relates to the technical field of wind shear modeling, and the method comprises the steps: collecting the wind speed measurement data of a laser radar at a plurality of heights in a target fan region, and constructing a measurement volume integral operator matrix; constructing a unit induction field correction model based on large eddy simulation in combination with a gradient boosting tree; coupling the measurement volume integral operator with the unit induction field correction model, and obtaining a high-precision wind speed vertical section and a corresponding wind shear parameter through inversion; on the basis of the high-precision wind speed vertical section and the corresponding wind shear parameters, physical constraints are fused, a wind shear model is generated, and uncertainty evaluation is carried out; according to the wind shear modeling method, the problems that the measurement error of the laser radar is difficult to correct, the wind shear modeling lacks the physical constraint and the result credibility cannot be quantified are solved by constructing the volume measurement integral operator and the unit induction field correction model for coupling inversion and fusing the physical constraint and the Bayesian uncertainty evaluation method.

The invention relates to the technical field of airborne wind power measurement, and discloses an airborne wind measurement laser radar method and system. The method comprises the following steps: generating a scanning time sequence identifier and a path correction mark structure through scanning beat synchronization and stray light shielding processing; executing time-frequency demodulation and quality gating based on the back scattering signal to generate an observation wind speed initial value sequence; performing time alignment and motion compensation in combination with inertial navigation data, and generating a wind speed vector grid fragment through spatial interpolation and scanning geometric mapping; and finally, generating a configuration updating instruction structure through coordinate alignment and grid splicing. According to the invention, the precision and the anti-interference capability of wind field measurement in an airborne environment are effectively improved, and the data reliability and the system stability under a complex meteorological condition are remarkably enhanced through multi-source data fusion and a self-adaptive compensation mechanism.

The invention provides a high-precision three-dimensional ultrasonic wind speed measurement method and device, the method is applied to an ultrasonic transducer array, a plurality of transducers in the transducer array are arranged according to a non-orthogonal structure to form a plurality of acoustic measurement paths, and the specific steps are as follows: acquiring ultrasonic signals collected on the plurality of acoustic measurement paths; for each acoustic measurement path, determining a downwind and upwind propagation time difference of ultrasonic waves on the path based on cross-correlation operation and sine wave fitting; and calculating a three-dimensional wind speed vector based on the geometrical relationship of each acoustic measurement path and the corresponding propagation time difference, thereby achieving the technical effects of remarkably improving the anti-interference capability, greatly improving the measurement precision, remarkably improving the calculation speed, optimizing the spatial symmetry, enhancing the environmental adaptability and improving the measurement robustness.

The invention discloses a wind measurement radar attitude angle depolarization estimation and correction method, which comprises the following steps: acquiring original wind field data acquired by a wind measurement radar, including a horizontal wind speed, a horizontal wind direction and a vertical wind speed; performing quality control on the original wind field data, removing invalid samples and screening effective wind speed data; constructing an error model based on the ratio of the vertical wind speed to the horizontal wind speed, and establishing a mapping relation between the ratio and the horizontal wind direction; estimating the attitude deflection angle of the radar by adopting a robust fitting method, including data density weighting and robust fitting processing, so as to improve the estimation stability and the anti-interference capability; based on the estimated attitude deflection angle, performing coordinate transformation on a radar beam direction, correcting a wind field inversion result, and outputting corrected three-dimensional wind speed data; the wind speed measurement precision is improved.

The utility model provides a wind direction and wind speed measuring device and a steel structure tower device. The wind direction and wind speed measuring device comprises a sampling main body, the sampling main body comprises a plurality of air inlets and at least two air channels, the plurality of air inlets are correspondingly communicated with the at least two air channels, openings of the plurality of air inlets face at least two different directions, and the at least two air channels are mutually independent and extend in different directions; the first temperature detection assemblies are arranged in the air ducts and used for collecting temperature information of at least two different positions in the extending direction of the air ducts. The second temperature detection assembly is arranged inside or outside the air duct and used for collecting environment temperature information. The humidity detection assembly is arranged inside or outside the air duct and used for collecting environment humidity information. The controller is used for calculating wind power data according to the temperature information and the humidity information, and the wind power data comprises wind direction and wind speed. The 360-degree omni-directional wind speed and wind direction measuring device is beneficial to measuring 360-degree omni-directional wind speed and wind direction, wide in measuring range, high in reliability, easy to maintain and high in measuring precision.

The invention discloses a device and a method for measuring the velocity field of an autoclave through hot-pressing wind speed. The device comprises a thermosensitive probe, a Wheatstone bridge, a lock-in amplifier, an NI multi-channel data acquisition card and a computer, the thermosensitive probe is used for instantaneously detecting the temperature of a placement point position and generating resistance fluctuation based on sensing temperature change; the Wheatstone bridge is formed by connecting a fixed resistor, a variable resistor and a thermosensitive probe, and is used for forming a series circuit with the lock-in amplifier; the lock-in amplifier is used for supplying power to the Wheatstone bridge and providing co-frequency voltage at the same time, so that resistance data of a thermosensitive probe in the Wheatstone bridge is converted into voltage data to be output; the NI multi-channel data acquisition card is used for acquiring in-phase component voltage signals output by the lock-in amplifier; the computer is used for processing the voltage data to obtain the average speed and the pulsation speed of the measurement point. According to the invention, the problems of limited precision, insufficient sensitivity and poor adaptability to the internal environment of the autoclave in the conventional gas speed measurement method are solved.

The invention relates to a wind speed measurement system and method based on a homologous isomorphic light wave wind finding radar, and the system comprises a photo-generated millimeter wave signal source module which employs a first laser and a second laser to carry out beat frequency to generate photo-generated millimeter waves, obtains a local oscillator signal based on the photo-generated millimeter waves, and obtains local oscillator light based on the second laser; the millimeter-wave radar wind measurement transceiving module is used for radiating photo-generated millimeter waves to a target space, receiving echo signals, mixing the echo signals with local oscillation signals and outputting intermediate-frequency signals; the laser radar wind measurement receiving and transmitting module is used for transmitting second laser to a target space, receiving echo light and performing coherent beam combination on the echo light and local oscillation light of the second laser to output an electric signal; the signal processing module receives the intermediate-frequency signals and the electric signals and calculates the comprehensive wind speed based on the intermediate-frequency signals and the electric signals. Compared with the prior art, the invention provides a simplified and more flexible homologous laser-millimeter wave signal generation method, and more accurate and reliable wind measurement can be realized.

The invention provides a laser radar attitude compensation wind measurement method and system, and relates to the technical field of laser radar wind measurement, and the method comprises the steps: obtaining the six-degree-of-freedom motion data of a carrier; driving the two-axis stabilized platform to compensate based on the three-axis rotation angle so as to stabilize the direction of the laser beam, and scanning to obtain initial radial wind speed data; then synchronizing the translation speed with the wind speed data by using a linear fitting algorithm to obtain a synchronous data set; a laser radar scanning mode is determined, and a corresponding attitude compensation strategy is selected according to the mode; inputting the synchronous data set and the strategy into a pre-training machine learning model to generate a compensation parameter, and processing the initial data through Kalman filtering based on the parameter to obtain target radial wind speed data; and finally, performing wind field inversion calculation based on the target data to generate a wind field measurement result. According to the invention, the wind field measurement precision of the laser radar on the motion platform under the complex sea condition is improved.

The invention provides a multilayer laser wind finding radar data processing method and system, and relates to the technical field of radar data processing. The method comprises the following steps: acquiring echo signals of each height layer, synchronously acquiring meteorological parameters of visibility, humidity and rainfall intensity, judging weather types according to meteorological conditions, and setting corresponding SNR reference thresholds; dividing a near-surface layer, a middle layer and a high-altitude layer based on the SNR statistical characteristics of the height layer, and implementing threshold difference adjustment; performing threshold dynamic smoothing according to the meteorological change rate; judging the data validity based on the smoothed threshold sequence, and performing graded repair on discrete missing points, continuous missing segments and large-range missing regions; and finally, calculating the confidence coefficient through the SNR threshold value factor and the repair algorithm factor, and outputting a wind field profile with a reliability identifier. And the data utilization rate, the restoration precision and the result credibility under the complex meteorological condition are remarkably improved.

The invention discloses a wind measurement radar data correction method based on high-precision topographic data. According to the technical scheme, the wind measurement radar data correction method is characterized by comprising the steps of 1, data preprocessing; 2, modeling a high-precision terrain generation model; step 3, performing CFD pre-simulation and terrain correction coefficient matrix; 4, modeling a data correction model; and establishing a data correction model by using a space-time convolutional neural network coupled LSTM mixed structure, learning terrain-wind field nonlinear mapping, and outputting a corrected three-dimensional wind field. 5, correcting the data in real time; and inputting real-time wind measurement radar data into the data correction model, optimizing the radar data through online matching of the terrain correction coefficient matrix under the current wind direction and wind speed, and outputting a correction result. The method is mainly used for solving the problems of high wind speed measurement error and low data analysis efficiency in a dynamic environment.

The invention discloses a wind turbine group wake flow control method based on radar wind measurement, and the method comprises the following steps: S1, radar wind measurement: installing laser wind measurement radars on cabins of an upstream wind turbine generator and a downstream wind turbine generator, and enabling the laser wind measurement radars to collect wind direction data in real time; and S2, multi-machine radar data fusion and whole wind flow field reconstruction are carried out, radar wind measurement data of upstream and downstream wind turbine generators are synchronously collected, a three-dimensional wind flow field of a wind direction area of the wind power plant is reconstructed, and the three-dimensional wind flow field outputs whole-field unified wind field indexes as wake flow model input data. The method has the advantage of being good in control effect, and solves the problems that when wake flow of an existing wind turbine group is controlled, self-adaptive adjustment is inconvenient to carry out on upstream and downstream wind turbine units according to radar wind measurement data, so that upstream and downstream fans are lack of cooperation, the wake flow control efficiency is affected, and the power generation benefits of the upstream and downstream fan groups are reduced.

The invention discloses a wind field detection method, device and equipment based on wind measurement data fusion and a medium, and relates to the technical field of wind measurement, and the method comprises the steps: carrying out the quality control of initial coherent wind measurement data and initial direct wind measurement data, and obtaining target coherent wind measurement data and target direct wind measurement data which meet preset quality requirements; performing space-time consistency matching on the target coherent wind measurement data and the target direct wind measurement data to obtain a target matching result, and splicing the target direct wind measurement data to the target coherent wind measurement data according to the target matching result to obtain spliced wind measurement data; performing data fusion on data in a to-be-fused height range in the spliced wind measurement data by using a real-time fitting prediction method to obtain fused wind measurement data, and determining a target wind field detection result by using the fused wind measurement data; the to-be-fused height range is a height range determined based on the maximum value and the minimum value of the height corresponding to the target coherent wind measurement data in the fusion time sliding window; therefore, the accuracy of wind measurement data can be improved.

The invention provides a three-dimensional scanning wind measurement laser radar system for an offshore rocket platform, which comprises a three-dimensional scanning laser radar, a shipborne attitude compensation module, a data processing module and a protective cover, and is characterized in that the three-dimensional scanning laser radar is used for emitting laser pulses and receiving original detection signals which are scattered by aerosol and penetrate through the protective cover; correcting the direction of the scanning head according to the attitude compensation signal, and outputting scanning track correction data; the shipborne attitude compensation module monitors the attitude change of the platform and generates a compensation signal to counteract the shaking influence; after the data processing module preprocesses the original signal, atmosphere three-dimensional wind field data is calculated in combination with scanning track correction data; the protective cover isolates tail flame heat radiation, strong light and seawater erosion and is used for guaranteeing detection stability; based on an offshore rocket platform scene, platform shaking is offset through shipborne attitude compensation, tail flame and seawater interference is isolated through a protective cover, the atmospheric three-dimensional wind field is calculated in combination with data processing, and the high-precision wind measurement requirement in the marine environment can be effectively met.

The invention relates to the technical field of laser radar wind measurement, and discloses a lightweight coherent wind measurement laser radar system, which comprises a telescope system, a rotary loading main body shell, a scanning servo system, a laser emission module, a signal processing module, an environment monitoring module and a multi-mode communication module. Polarization control strategies are set according to different scanning directions, and the consistency standard of laser echo signal quality is guaranteed; meanwhile, whether the optical transmission distortion phenomenon exists in the scanning process or not can be recognized in real time by monitoring the spectral characteristics of the light source and the offset state of the preset reference in real time, the accuracy of Doppler frequency shift calculation is guaranteed, and the system error of wind field inversion is further reduced; whether an optical scanning axis deviates from a theoretical pointing reference or not is judged in real time by resolving a spatial deviation value of a radar body rotation attitude and a standard scanning track; therefore, the system can avoid the detection omission of the key atmospheric structure.

The invention provides a dynamic yaw error compensation method and system based on a cabin type wind lidar. The method comprises the following steps: firstly, acquiring three-dimensional wind field data at a preset distance in front of a wind turbine, simultaneously acquiring operation state parameters of the wind turbine, then extracting unstable transverse component and longitudinal velocity gradient distribution in an incoming wind flow direction, and then calculating a real-time yaw error amount caused by dynamic change of a wind field; and converting the real-time yaw error amount into a feed-forward compensation control signal by combining the dynamic response characteristic of the yaw system of the wind turbine, finally inputting the feed-forward compensation control signal into a main controller of the wind turbine, and adjusting an angle set value of the yaw system so as to complete yaw error compensation of the laser radar. According to the technical scheme, the alignment precision, the wind energy capturing efficiency and the operation stability of the wind generating set under the complex changing wind condition are improved, and high-precision and high-reliability compensation of the dynamic yaw error is achieved.

The invention relates to the field of wind power, and provides a foundation device for a floating type fan, a wind turbine generator and a control method. The foundation device for the floating type draught fan comprises a base. The tower is mounted on the base and used for mounting a fan assembly; and the propeller is installed on the base and electrically connected with the wind measuring mechanism of the fan assembly, and the propeller is suitable for adjusting the pose of the base based on wind measuring data of the wind measuring mechanism. According to the foundation device for the floating type fan, the pose of the base can be adjusted in real time according to wind measurement data, and it is ensured that the fan assembly is always located at the optimal windward angle; wind energy can be captured to the maximum extent, and the power generation efficiency and the overall operation performance of the fan are improved; stable operation can be kept under different ocean conditions, and the adaptability to complex environments is remarkably enhanced; the wind energy capturing efficiency is optimized, structural vibration and fatigue loads caused by natural factors such as stormy waves can be reduced, the service life of the draught fan and the supporting structure of the draught fan is prolonged, and the stability and safety of the whole system are improved.

This application belongs to the field of meteorological monitoring technology and discloses a three-dimensional orthogonal ultrasonic anemometer and wind measurement method based on the dual-mode time difference method. The anemometer includes: three sets of ultrasonic probes, each set containing two through-beam ultrasonic probes, arranged along the X-axis, Y-axis and Z-axis directions respectively; an ultrasonic mounting base for fixing the three sets of ultrasonic probes, with the backward extension lines of the tail ends of the probes in the X-axis and Y-axis directions intersecting at the center of the mounting base, and the probe in the Z-axis direction located above the symmetrical center line of the plane formed by the X-axis probe and the Y-axis; a conditioning circuit module installed inside the ultrasonic mounting base and electrically connected to the three sets of ultrasonic probes; wherein, the signal conditioning and processing circuit is configured to: calculate a first wind speed value and a second wind speed value based on the threshold time difference method and the median time difference method respectively for the propagation time; output the second wind speed value in response to the determination of low wind speed conditions; and output the first wind speed value in response to the determination of high wind speed conditions.

The embodiment of the invention provides a system and method for automatically adjusting the wind speed deviation of an outlet of a coal mill. The system comprises the coal mill, a plurality of powder pipes, a boiler and wind speed adjusting equipment. The wind speed adjusting equipment is arranged on a plurality of powder pipes, calculates a wind speed measurement average value according to the wind speed measurement value in each powder pipe, and also calculates the wind speed deviation of each powder pipe according to the wind speed measurement average value; and the wind speed of the plurality of powder pipes is adjusted according to the comparison result of the wind speed measurement value of the powder pipe and the wind speed measurement values of other powder pipes in the plurality of powder pipes, the comparison result of the wind speed deviation of the powder pipe and the preset wind speed deviation and the adjustment allowance state. According to the method, the wind speed of the powder pipe is adjusted in real time according to state judgment of parameters such as the wind speed measurement value, the wind speed deviation and the adjustment allowance, dynamic adjustment of tracking the wind speed is achieved, and the method has great significance in improving the combustion efficiency of the boiler, reducing combustion deflection and slagging phenomena and reducing the operation cost and environmental pollution.

The application discloses a non-orthogonal transducer array three-dimensional ultrasonic wind speed and direction instrument which can be carried on a unmanned aerial vehicle and applied to the field of wind speed and direction instruments, and the non-orthogonal transducer array is adopted to reduce the influence of turbulence on wind measurement accuracy; when the turbulence degree generated by one group of transducers is relatively large, the other two groups of transducers can compensate the data, so that high-precision wind speed and direction measurement is realized; meanwhile, when the unmanned aerial vehicle encounters strong wind, the probe fixing rod will be broken, so that the unmanned aerial vehicle is prevented from losing control due to the large wind area of the orthogonal annular support, and the fixed base plate and the elastic thin rod are arranged to recycle the broken and fallen orthogonal annular support and ultrasonic probe, so that the high-altitude falling object is not easy to form, and the orthogonal annular support and the ultrasonic probe are effectively protected, the subsequent recycling and reuse of the orthogonal annular support and the ultrasonic probe are facilitated, and the wind direction and speed detection in strong convection weather such as strong wind is applicable.

This application provides a coal powder sampling and wind speed measurement device. The device includes a sampling unit, a flow velocity measurement unit, and an air compression unit. A coal powder sampling gripper in the sampling unit is rotatably mounted at one end of a sampling tube, and the gripper is internally connected to the sampling tube. An electrically controlled rotation device controls the rotation of the coal powder sampling gripper. A cyclone separator is installed at the other end of the sampling tube. A thermocouple in the flow velocity measurement unit is located inside a back-mounted tube. A coal powder tube temperature measuring device is connected to the thermocouple, and a coal powder tube wind speed measuring device is connected to the back-mounted tube. The air compression unit has a negative pressure pipeline where compressed air is introduced at one end and discharged at the other end to generate negative pressure in the cyclone separator. This negative pressure pipeline is used to adjust the air velocity based on the dust flow velocity measured by the flow velocity measurement unit. A back-flushing pipeline is connected to the cyclone separator. This device improves sampling accuracy and avoids sampling tube blockage.

This application discloses a method, apparatus, equipment, and medium for fusing atmospheric boundary layer wind speed data based on a hybrid-system wind-measuring lidar, relating to the field of computer technology. The method includes: simultaneously acquiring coherent wind measurement data and direct sounding wind data currently measured by the hybrid-system wind-measuring lidar during atmospheric boundary layer wind field observation; performing spatiotemporal registration and preprocessing on the coherent wind measurement data and direct sounding wind data; fusing atmospheric boundary layer wind speed data based on the preprocessed wind measurement data and a current preset fusion model to obtain the current fused target wind speed data; the preset fusion model is a model constructed based on a heterogeneous dual-branch deep neural network; and determining the target atmospheric boundary layer wind profile based on the hybrid-system wind-measuring lidar and the target wind speed data. This application can achieve high-precision wind profile fusion, improving the accuracy, precision, and environmental robustness of atmospheric boundary layer wind speed data fusion.

The invention provides a wind driven generator control method and system and a server, and relates to the field of wind driven generator safety control, and the method takes a clearance radar as a safety hard constraint, obviously reduces the tower sweeping risk, can maintain the control reliability under the conditions of rain, fog, clutter and the like, reduces the unnecessary power limitation and shutdown occurrence probability, and improves the safety of the wind driven generator. The misjudgment rate of the wind driven generator in the clearance control process is greatly reduced; in addition, according to the method, wind measurement load shedding and clearance safety can be coupled in the control process of the wind driven generator, feedforward control can be carried out under the working conditions of gust, shearing, yaw errors and the like, and the load of the wind driven generator is reduced.

The invention relates to an air component analysis method and system in an airport environment, and the method comprises the steps: continuously collecting the wind field motion in the airport environment through a laser wind measurement radar in a preset time period, and obtaining an initial wind field motion point cloud data set; performing wind field displacement vector calculation on each wind field motion point cloud data in the set to obtain a wind-point-free cloud data set; constructing a corresponding triple for each piece of windless point cloud data in the set; and performing normalization and visualization processing on the triple to generate image data, and analyzing the image data through an air component classification model to obtain air components of the airport environment. By means of the air component analysis method and device, the wind field state which changes severely in the airport environment is converted into the windless state, the emission characteristics of pollution sources are reflected more truly, large-range air component analysis is conducted in a triple-image mode, and the problem of how to improve the applicability of air component analysis in the large-range environment is solved.

The invention belongs to the technical field of meteorological instruments, and particularly relates to a small outdoor meteorological instrument, which comprises a connecting seat and a plurality of shutters nested at the upper part of the connecting seat, a device plate mounting seal cover is nested at the upper parts of the shutters, and an ultrasonic wind measurement frame is nested at the upper end of the device plate mounting seal cover. The upper end of the ultrasonic wind measuring frame is nested on the device plate mounting sealing cover, the rainfall sensing plate is nested on the top of the device plate mounting sealing cover, and meanwhile, the part connecting part is buckled and sealed by a structure, so that the device adapts to corrosion of outdoor moisture, rain, dew, frost, snow and the like; and meanwhile, a plurality of parts are assembled through clamping and nesting, so that thread locking is reduced, and the assembly complexity of the outdoor small meteorological instrument is greatly reduced.

The invention discloses a millimeter wave radar array-based wind field fan blade integrated monitoring method, which comprises the following steps of: generating a point cloud observation result by performing range direction and Doppler processing on observation data acquired by a millimeter wave radar array at the top of a cabin, and constructing an echo energy time sequence in a fan blade area; and determining the sweep-over period of the fan blade through peak detection. A time slot control sequence is constructed, a fan blade occupation time period is used for point cloud reconstruction, and a non-shielding time period is used for wind measurement. In a fan blade point cloud reconstruction time slot, reconstructing a fan blade point cloud through methods of multi-channel signal synthesis, threshold detection, angle estimation and the like, and extracting blade state parameters; in a wind measurement time slot, a wind speed vector inversion model is established through multi-sight radial speed observation, and the wind speed and the wind direction are obtained by adopting a weighted fusion method. And fusing and outputting the fan blade state parameters and the wind field parameters in a unified coordinate system and a time axis. According to the method, additional wind measurement equipment is not needed, and integrated, continuous and high-reliability monitoring of the wind field and the fan blades is achieved.

The application discloses a cooling tower with an internal air distribution device, which comprises rotatable guide vanes, a wind blocking wall formed by the guide vanes, a guide vane rotating device, a supporting frame, a stepping motor and a transmission mechanism, and a wind speed measuring and control system, wherein an upwardly inclined guide plate is installed on the guide vane, and the rotating angle of the guide vane is controlled by the stepping motor and the transmission mechanism through the guide vane rotating device. A wind speed measuring device is installed at the bottom of a packing area of the cooling tower along the circumferential direction of the inner wall of the cooling tower. The wind speed of each area is determined according to the wind speed measuring device. When side wind is detected and a low-speed area of air is formed in the tower, the guide vanes are rotated through the control system, the stepping motor and the transmission mechanism, the opening and closing or partial opening and closing of the wind blocking wall are realized, the purpose of eliminating the draught and uniformly distributing the air flow field in the tower is achieved, and the cooling performance of the cooling tower is improved.

The application provides a self-standing wind measuring tower capable of automatic installation and free from tower shadow effect, relates to the technical field of wind measuring towers, and comprises a base system, a tower system is arranged on the top surface of the base system, the tower system is connected with the base system through a sliding groove system, and a guide system is arranged in the tower system.In the tower system of the application, the tower is arranged in an isosceles triangular structure, the triangular tip is located on the leeward side of the wind direction, so that the windward area of the tower is relatively small under the action of the main wind direction.In addition, as the distance between the triangular tip and the main shaft of the tower increases, the influence of the triangular tip on the overall stability of the tower is also enhanced, and the wind measuring equipment is installed on the main shaft of the tower and deviated to one side of the second turning barrel, so that the wind measuring equipment is not blocked by the main body of the tower of the wind measuring tower, thereby eliminating the tower shadow effect.

The application discloses a wind power generation site selection method based on ancient storm deposition background and relates to the field of power generation site selection, which comprises the following steps: setting a unified space reference, forming an input data set, performing wind source basin assimilation fusion, generating modern wind field three types of grids, and configuring a modern wind field deposition response calibration reference domain. Long-term wind direction and wind speed prior are established by using storm deposition records and direction evidence, annual uncertainty caused by only relying on short-term wind measurement is reduced, hard constraint filtering is formed by using soft sediment deformation risk coding and boundary stability marking, a penalty term is introduced into scoring, ground investigation and construction stage risks are reduced, candidate area output synchronously gives evidence chain index and uncertainty level, short-term wind measurement review, ground investigation review and deviation backwriting self-calibration iteration are performed, and finally, site selection achievement package containing superimposed graph and evidence chain list is solidified, so that site selection decision transparency and landing efficiency are improved.

The application relates to the technical field of digital processing, and discloses a wind farm wind measurement tower site selection method and system, which comprises the following steps: acquiring meteorological live conditions, grid prediction and occultation observation data of each spatial grid point in a candidate area, and calculating a terrain disturbance factor; fusing the multi-source meteorological data by the terrain disturbance factor weighting, forming a comprehensive wind field data set, inputting a numerical weather prediction model, and iteratively optimizing the terrain disturbance factor as a physical constraint to obtain wind field prediction data in space-time distribution; and screening grid points meeting preset conditions from the wind field prediction data as wind measurement tower candidate positions. The wind farm wind measurement tower site selection method and system solve the problem of inaccurate wind measurement tower site selection caused by insufficient consideration of the mechanical disturbance and turbulence effect of terrain on the wind field, and simultaneously improve the meteorological accuracy and reliability of the wind measurement tower site selection.

The invention discloses a wind speed map drawing method, device and system and a storage medium, and the method comprises the steps: obtaining mesoscale meteorological data of a target region from a database used for recording meteorological data, and obtaining a topographic map of the target region; setting boundary layer parameters and boundary conditions for a topographic map of a target area based on the mesoscale meteorological data; performing CFD simulation on the target area according to the boundary layer parameters and the boundary conditions to obtain a simulated wind speed value of any point in the space of the target area; calculating a long-term wind speed sequence of any point in the target area space according to the simulated wind speed value and the wind speed in the mesoscale meteorological data; and drawing a wind speed map of the target area according to the long-term wind speed sequence. According to the method, the mesoscale meteorological data and the CFD simulation technology are deeply fused, the wind speed map of the target area can be obtained without arranging an anemometer tower in advance or performing long-term wind measurement, the wind speed measurement efficiency is improved, and the wind speed measurement and calculation cost is reduced.