52 results about "Prevailing winds" patented technology

The invention discloses a monitoring point distribution method and device based on industrial park gas monitoring and a medium, and relates to the technical field of carbon monitoring, triangular mesh division is carried out based on DT triangular mesh division, and according to the difference of monitored areas, the DT triangular mesh division method is used for setting point distribution of the monitored areas, so that the monitoring point distribution accuracy is improved. At least one monitoring point is selected in each grid for carbon dioxide concentration monitoring, point distribution setting can be carried out in different area ranges of prevailing wind directions in different states, the optimal monitoring result can be obtained through the least carbon dioxide gas monitoring points, the accuracy and credibility of the final data result are improved, and the method is suitable for popularization and application. The problems that the current industrial park monitoring coverage range is not wide, the device cost is high, and improvement of the carbon monitoring device distribution position affects the accuracy of the carbon ground monitoring technology are solved.

The invention relates to the technical field of wind power generation control, in particular to a wind turbine generator wake flow optimization cooperative control system and method. According to the technical scheme, the wind turbine generator wake flow optimization cooperative control system comprises a feedforward LiDAR array which is deployed at the upstream 1-2 km of the prevailing wind direction of a wind power plant and used for collecting upstream three-dimensional wind field data in real time; the unit embedded sensor group comprises an ultrasonic anemograph and an inertial measurement unit IMU which are arranged in a cabin of each wind turbine unit, and the sampling frequency is not lower than 20Hz; the data fusion module is used for performing space-time alignment and noise filtering on the data of the LiDAR array and the unit embedded sensor through a convolutional neural network (CNN) and a Kalman filtering algorithm to generate a dynamic wind field digital twinborn model; and the LSTM wind field predictor predicts the wind speed and wind direction change trend in the future 30 seconds based on the dynamic wind field digital twinborn model. Through multi-source sensing fusion and dynamic game optimization, the operation efficiency and safety of the wind power plant under the dynamic wind condition are remarkably improved.

A direct air capture (DAC) facility for capturing carbon dioxide (CO2) from atmospheric air is disposed on a plot of land having a prevailing wind direction and includes at least one contactor wall formed from a plurality of gas-sorbent contactors positioned side by side and a regeneration facility in communication with the plurality of gas-sorbent contactors The at least one contactor wall is disposed on the plot of land and extends along a wall axis parallel to the prevailing wind direction. Each gas-sorbent contactor of the plurality of gas-sorbent contactors includes a housing including a plurality of structural members; at least one air inlet and at least one air outlet;  a gas-sorbent interface; and at least one fan. The regeneration facility is configured to process the CO2-rich sorbent and to regenerate the CO2-rich sorbent to form a regenerated sorbent for the plurality of gas-sorbent contactors.

The invention discloses a wind power plant micro-siting assessment method based on spatial analysis and climate adaptability, relates to the technical field of wind power plant siting, and solves the problems that in the prior art, spatial analysis depends on static topographic data, climate adaptability assessment uses dynamic meteorological data, and the static topographic data and the dynamic meteorological data lack a space-time synchronization mechanism; and a prediction result has a large deviation. The method comprises the following steps: firstly, acquiring multi-source data and fusing to realize time-space synchronization of the data; then, constructing and solving an objective function to obtain a candidate point set, and screening out an optimized point distribution scheme of which the prevailing wind direction coverage is greater than a set threshold value; and finally, inputting prediction data of various extreme climates into the cost-per-kilowatt-hour model, introducing extreme climate toughness parameters into calculation to carry out climate adaptability data correction, and calculating return on investment cycles under different carbon emission scenes. Through the steps, the limitation that only static wind resources are concerned on traditional site selection is broken through, and combined evaluation of the regional climate adaptability and the complex terrain adaptability is achieved.

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.

The invention provides a day-ahead prediction method and device for wind power cluster power, equipment and a storage medium. Relates to the technical field of wind power generation prediction. The method comprises the steps that clustering is completed based on historical multivariate information of all stations in a wind power cluster, cluster virtual nodes are set, and the visual angle of global information is expanded for cluster modeling; and information propagation characteristics between nodes are explored based on a cluster prevailing wind direction. Constructing an adjacent matrix of the dynamic graph, and quantifying the dynamic evolution process of the cluster topology; and finally, mining cluster dynamic information by using a frequency domain channel attention mechanism and STGCN, and completing short-term power prediction of the wind power cluster. The method is a prediction method which considers multivariate information space-time diversity and is suitable for the day-ahead wind power cluster power, and is simple in calculation, high in prediction performance, clear in physical significance, effective in prediction result and high in practicability.

The present invention relates to a plain region wind turbine arrangement method based on a Web application system, comprising the following steps: (1) determining a prevailing wind direction; (2) setting parameters; (3) determining the position of a first wind turbine; (4) carrying out quincunx arrangement; and (5) completing the arrangement of wind turbines in the whole region. In the present invention, a computer algorithm and GIS technology are used, so that a large amount of terrain data can be processed and analyzed, and a region with high wind speed and stable wind flow can be rapidly recognized to determine an optimal arrangement position for wind turbine arrangement, thereby significantly improving the efficiency and quality of wind turbine arrangement.

The invention provides a balcony arbor layout optimization method based on a conditional diffusion generative model, and the method comprises the following steps: S1, obtaining summer climate parameters of a region where a fourth-generation housing project is located and a size and position relation between a hanging garden type balcony and an indoor space, generating project scene description data according to the summer prevailing wind direction, the opening orientation of the hanging garden type balcony and the communication condition of the hanging garden type balcony and each main room; the invention provides a balcony arbor layout optimization method based on a conditional diffusion generation model, and aims to establish a hanging garden type balcony arbor layout automatic generation and optimization method which can give consideration to the connectivity of a ventilation channel in a prevailing wind direction and the thermal comfort requirement of multiple rooms under the given summer climate and building geometric conditions of a fourth-generation house. The hanging garden type balcony arbor configuration is matched with natural ventilation of a building and an indoor thermal environment in a synergetic manner. The air garden type balcony arbor configuration can be optimized while the ventilation channel is guaranteed to be smooth, the indoor thermal comfort in summer is improved, and manual trial calculation is reduced.

The utility model relates to an offshore enclosure system which comprises a first enclosure belt and a second enclosure belt which are arranged between the interiors of a concave shoreline, a water body is arranged in the concave shoreline, and blue-green algae flows into the surface of the water body towards the inner side of the concave shoreline along the prevailing wind direction; the first enclosure belt is located on the inner side of the second enclosure belt and comprises a plurality of first enclosures arranged side by side, the lower end of the first enclosure belt sinks to the bottom of a water body, and a first interval is formed between every two adjacent first enclosures; the second enclosure belt comprises a plurality of second enclosures arranged side by side, the lower ends of the second enclosures sink to the bottom of the water body, and a second interval is formed between every two adjacent second enclosures, so that the maintenance and replacement cost of single enclosures is reduced, meanwhile, the first interval and the second interval are arranged in a staggered mode, and the first enclosure belt and the second enclosure belt jointly share the impact force of water body flowing; the possibility that the first enclosure belt and the second enclosure belt are impacted and damaged is reduced while the effect of enriching the blue-green algae is achieved, and the service life of the first enclosure belt and the service life of the second enclosure belt are prolonged.

The invention relates to the field of offshore photovoltaic technology, and provides a configuration method and device of an offshore photovoltaic module, a program product and electronic equipment. The method comprises the following steps: determining a first configuration angle interval of a photovoltaic module of a to-be-constructed offshore photovoltaic area according to a minimum power generation efficiency demand of the to-be-constructed offshore photovoltaic area and predicted illumination data when the to-be-constructed offshore photovoltaic area is officially put into use; acquiring historical wind regime data of the offshore photovoltaic area from the plurality of ocean weather stations, and determining a prevailing wind direction of the offshore photovoltaic area according to the historical wind regime data; according to the prevailing wind direction, a second configuration angle interval of the photovoltaic module in the offshore photovoltaic area is simulated in simulation software, and the second configuration angle interval is used for reducing the wind load of the photovoltaic module; based on the intersection of the first configuration angle interval and the second configuration angle interval, a configuration suggestion of the photovoltaic module of the offshore photovoltaic area to be constructed is generated; and completing the configuration of the photovoltaic module according to the configuration suggestion. According to the scheme, the safety of the photovoltaic module can be improved.

The present invention discloses a method, apparatus, terminal device, and computer-readable storage medium for evaluating the wind resistance of distribution network tower structures. The method comprises: obtaining meteorological and topographical data of the distribution network tower to be evaluated; the meteorological data includes temperature, humidity, wind speed, and rainfall intensity; the topographical data includes land type, slope, windward or leeward slope, and the angle between the prevailing wind direction and the line direction in winter; inputting the meteorological and topographical data into a neural network model, so that the model generates soil shear strength based on the meteorological and topographical data; determining the ultimate overturning moment and the corresponding critical wind speed based on the soil shear strength; and determining the wind resistance of the distribution network tower to be evaluated based on the critical wind speed. By implementing the present invention, the impact of rainfall on soil can be taken into account, improving the accuracy and reliability of the evaluation.

The application discloses a kind of desert concentrated salt water solar salt local climate improvement system, belong to ecological engineering and the cross technical field of climate improvement.System includes the large-area solar salt evaporation pond group arranged in inland desert area, the wind tunnel acceleration evaporation distribution arranged along prevailing wind direction, and the ecological gain area of downwind direction.The present application utilizes the super-high evaporation capacity of inland desert area, and the large amount of water vapor generated during the solar salt process is transported to the downwind desert area through the wind tunnel acceleration distribution, continuously increases the local atmospheric water content and air relative humidity, triggers local rainfall increment, so that the annual precipitation of downwind area exceeds the survival threshold of desert vegetation, and promotes the natural recovery of native vegetation.At the same time, large-area evaporation water surface absorbs solar radiation heat, combined with vegetation carbon fixation, forms a significant carbon sink effect.

The application provides a generation method of a solstice seal based on parameterized modeling and azimuth coupling symmetry, and relates to the technical field of seal design. The generation method of the solstice seal determines a yin-yang background color according to astronomical characteristics of solstice origin and a parameter according to a season where the solstice is located, and generates a normalized boundary curve. The generation method calculates a solstice prevailing wind azimuth based on meteorological data. The generation method divides a main area and a remaining area according to a season parameter, and calculates character coordinates. The generation method applies a vertical symmetry criterion to layout solstice characters in the remaining area, and verifies vertical symmetry and minimum spacing constraints. The application can automatically generate a solstice seal meeting the requirements of traditional culture according to scientific genes, cultural backgrounds and natural characteristics of the 24 solar terms, through accurate modeling and optimization calculation.

The invention discloses a cooling tower filling method based on a temperature field and an aerodynamic field, and relates to the technical field of cooling towers, a vertical axis of a cooling tower is taken as a center, the cooling tower is divided into two annular areas with different radiuses, namely a conventional area and a thick area, and the filling thickness of the thick area is greater than that of the conventional area; the thick area comprises a plurality of fan-shaped areas, each fan-shaped area is composed of a windward area, a leeward area and a radiation area, and the filler thickness of each windward area is larger than that of each leeward area and that of each radiation area. The windward area, the leeward area, the radiation area and the like are arranged, the wind direction of prevailing wind and the average wind speed are brought into layout parameters of the filler based on an aerodynamic field according to different geographical environments, coupling of an external wind field is improved, and the filler thickness and width ratio of the thick area to the conventional area is calculated according to the average wind speed; and the cooling efficiency can be improved by 10-15% in a strong wind area.

The invention discloses a power distribution network tower structure wind resistance capability assessment method and device, terminal equipment and a computer readable storage medium. The method comprises the following steps: acquiring meteorological data and topographic data of a power distribution network tower to be assessed; the meteorological data comprises temperature, humidity, wind speed and rainfall intensity; the topographic data comprises a land type, a gradient, a windward slope or a leeward slope, and an included angle between a prevailing wind direction in winter and a line trend; inputting the meteorological data and the topographic data into a neural network model, so that the model generates soil shear strength according to the meteorological data and the topographic data; according to the soil shear strength, the limit overturning moment and the corresponding critical wind speed are determined; and according to the critical wind speed, determining the wind resistance of the to-be-evaluated power distribution network tower. By implementing the method, the influence of rainfall on soil can be considered, and the accuracy and reliability of evaluation are improved.

Methods and apparatus for detecting and measuring gas flow are disclosed, in which lidar range information acquired during detection of a gas using a lidar sensor is used together with prevailing wind data to determine local wind data for a leak location. This local wind data, which can include one or more vector or 3D wind models, is used to determine flow rates.

A floating wind turbine installation including an asymmetric floating wind turbine structure that is tethered to the floor of a body of water by a mooring system. The floating wind turbine structure includes a wind turbine mounted on a semi-submersible floating platform, and is oriented such that the wind turbine is positioned on an upwind side of the centre of mass of the floating wind turbine structure when the wind approaches the wind turbine structure in the direction of the prevailing wind at the location of the wind turbine installation.

The invention belongs to the technical field of anti-seismic design of high-rise structures, and provides a method for reinforcing horizontal cracks in the middle-upper portion of a solar heat absorption tower and the solar heat absorption tower. The method comprises the steps that the height of a concrete cylinder in the heat absorption tower is determined, and a profile steel reinforced concrete section is determined at the preset position of the middle-upper portion of the concrete cylinder according to the height; a plurality of pieces of H-shaped steel are arranged in the circumferential direction of the section steel reinforced concrete section; for an area without a leading direction of wind load, the H-shaped steel is uniformly arranged in the circumferential direction of the concrete barrel, and the circumferential distance between the adjacent H-shaped steel is determined according to an earthquake acceleration value; for an area with the prevailing wind direction, the H-shaped steel is non-uniformly arranged in the circumferential direction of the concrete barrel, and directional correction is conducted on the circumferential distance according to the prevailing wind direction; and when the reinforcing position, the layout form and the number of the H-shaped steel are determined, the structural characteristics, the stress condition and the field wind load condition of the heat absorption tower are comprehensively considered, and the problem of too high cost is avoided on the basis of ensuring the reinforcing effect.

The present disclosure relates to methods for operating wind turbines (10) and charging one or more auxiliary power sources (84) for providing auxiliary power to one or more wind turbines (10). A method comprises pitching the wind turbine blades (22) to a predetermined idling pitch angle such that the wind turbine generator (42) produces power for charging one or more auxiliary power sources (84) above a predetermined wind speed. The method further comprises keeping the pitch angle (25) of the blades (22) at the idling pitch angle and charging the auxiliary power sources (84) when a prevailing wind speed reaches or exceeds the predetermined wind speed.

The invention discloses a method for finely measuring and calculating the developable capacity of a wind power installation technology in a specified area, and the method comprises the following steps: S1, obtaining the geographic information and wind resource data of a target area, and superposing a restrictive factor layer to obtain available land resources; s2, dividing available land into a mountain land type and a flat land type based on topographic features; s3, preferentially extracting a ridge line corridor of a mountain type, and performing mountain unit arrangement in combination with a main wind direction and a fan wake flow model; s4, updating the available boundary of the flat ground type based on the wake flow influence area of the mountain unit, and performing boundary recursive unit arrangement in the flat ground type; s5, matching a corresponding model according to the wind speed data of the arranged point positions; and S6, accumulatively calculating the total installed capacity. According to the method, on the premise that the terrain and wake flow arrangement rule is met, the technology developable quantity of wind power installation can be rapidly and automatically measured and calculated in a large range.

The invention provides a high-altitude seismic wave data acquisition method and system, and particularly relates to the technical field of deployment modes of physical noise reduction devices of high-altitude seismic wave sensors. According to the method, a leeward slope stable area judgment criterion is defined based on digital elevation model data and historical wind field data of a target area, a seismic sensor deployment point is determined by analyzing the terrain slope direction and the like, a seismic sensor and an anemometer are installed, and an angle-adjustable wind guide plate is installed at the preset distance of the windward side of the deployment point; and the deflection angle is dynamically adjusted according to the real-time prevailing wind direction data. A seismic sensor is triggered to collect continuous seismic wave data, current wind speed data is recorded synchronously, and when the wind speed exceeds a preset threshold value, a timestamp mark is embedded to form a segmented mark data set. And marking and positioning the marked data segment according to the timestamp, only carrying out noise reduction processing on the data segment, and outputting the seismic wave data after noise reduction. The method solves the problem that the wind-induced vibration noise is increased in a high-altitude dynamic wind field environment, and improves the signal-to-noise ratio of seismic signals.

The utility model provides a shallow wind measuring device for avoiding a tower shadow effect, and the device comprises a wind measuring tower, a main wind measuring sensor, an auxiliary wind measuring sensor, and a data collector. The main wind measurement sensor is mounted on a first cross arm on the prevailing wind windward side of the wind measurement tower; the auxiliary wind measurement sensor is installed on a second cross arm, opposite to the prevailing wind, of the wind measurement tower. The data collector is connected with the main wind measurement sensor and the auxiliary wind measurement sensor and used for receiving and processing real-time wind direction and wind speed data from the main wind measurement sensor and the auxiliary wind measurement sensor, selecting data of one sensor according to wind direction information to record, selecting the main wind measurement sensor when the wind is blown from the main wind measurement sensor, and selecting the auxiliary wind measurement sensor when the wind is blown from the auxiliary wind measurement sensor. And when the wind is blown from the auxiliary wind measurement sensor, the auxiliary wind measurement sensor is selected. Through the innovative sensor layout and data processing mechanism, the tower shadow effect is automatically avoided, and the accuracy and reliability of wind speed measurement are remarkably improved.

Methods and systems for detecting and measuring gas flow are disclosed in which lidar distance information, acquired during the detection of gas using a lidar sensor, is used together with local wind data to determine a rate of flow for the detected gas. The local wind data, which may comprise one or more vectors or a 3D wind model, may be determined based on prevailing wind data and the lidar distance information, and can use computational fluid dynamics (CFD) models to determine the wind velocity through 3D structures identified using the lidar sensor. The detection of gas flow using the disclosed technology may be particularly useful for the remote detection and quantification of leaks from natural gas (methane) wells and pipelines to locate, quantify and map fugitive emissions.

The invention discloses a fire-fighting unmanned aerial vehicle autonomous patrol system and method based on the Internet of Things, and relates to the technical field of intelligent fire fighting, and the method comprises the steps: converging fixed Internet of Things sensors, unmanned aerial vehicle airborne sensor sensing data and unmanned aerial vehicle cluster state data, processing the data into a standardized data set, dividing park monitoring nodes, and calculating a comprehensive risk value; constructing a weighted directed dynamic risk map by combining the node space relationship, the distance and the environment prevailing wind direction; simulating risk propagation based on a graph, identifying key nodes to form a key check set, determining a routine inspection set, and generating a differentiated task set; calculating task priority and execution cost, establishing a collaborative task allocation model with maximized system overall efficiency, solving the collaborative task allocation model, and generating a task allocation scheme; the system comprises corresponding function modules, realizes accurate risk identification and intelligent task distribution, improves the patrol efficiency, and guarantees the fire safety of the park.

The invention discloses an intra-day scale extreme rainfall process identification and evaluation method, which relates to the technical field of extreme rainfall identification, and aims at plateau-mountain-plain complex terrains in Sichuan, grid units are divided through a regular network, vertical layers are subdivided, and key convection heights are accurately identified in combination with terrain parameters and atmospheric parameters. Constructing a regional extreme rainfall risk index of the ith grid unit coupled with convection effective potential energy and water vapor flux net income and expenditure, and solving the problems that the traditional administrative region division precision is low and single parameter evaluation is inaccurate; tracking along a prevailing wind direction and a water vapor channel to form a feature region path set, and pre-judging an extreme rainfall downstream propagation path; based on the ratio, average intensity and duration of extreme rainfall pulse events in the path and a dynamic correction pre-strategy, the upgrading observation and material allocation of the high-risk path and the reasonable degradation of the low-risk path are carried out, the resource waste is avoided, and the accuracy of intraday scale extreme rainfall identification is improved.

The present invention is a one-dimensional sonic anemometer paired with a tail vane that continuously rotates the sonic anemometer to be coaligned with the prevailing wind. The one-dimensional sonic anemometer being coaligned with the wind vector can measure the total wind speed directly with the wind direction measured by detection of the relative orientation of the instrument with respect to North as the instrument is held into the wind. Rather than a conventional two-dimensional sonic anemometer, the invention is a hybrid one-dimensional sonic anemometer with a mechanical wind direction measurement.

The invention relates to a method for spreading a spreading material mixture (M) comprising several spreading materials (S1, S2) using an agricultural centrifugal spreader (1), which has at least two spreading devices (2, 3) arranged at different spreading heights (H1, H2) for spreading one spreading material (S1, S2) each, and a wind sensor (6) for detecting wind conditions (W), wherein the prevailing wind conditions (W) during spreading are detected and setting parameters (E1, E2, E3, E4, E5) of the spreading devices (2, 3) are set to generate a wind-independent spreading pattern (F) depending on the detected wind conditions (W), wherein the setting parameters (E1, E2, E3, E4, E5) of the spreading devices (2, 3) are set differently depending on the respective spreading height (H1, H2).

The invention discloses a wind and sand prevention system for an equipment foundation in a desert area and a construction method of the wind and sand prevention system, belongs to the technical field of engineering construction in the desert area, and can solve the problem that in the prior art, targeted wind and sand prevention design for wind power generation equipment in the desert area is lacked, so that the construction difficulty of wind power generation engineering is increased. The system comprises a weight covering unit which is pressed on an equipment foundation; the first sand stabilization unit is arranged on the outer side of the equipment foundation, is located in the prevailing wind direction of the desert area and comprises a plurality of rows of sand stabilization trees; the second sand stabilization unit is arranged on one side, far away from the equipment foundation, of the first sand stabilization unit and comprises a plurality of rows of straw checks; the high vertical sand barrier unit is arranged on the side, away from the first sand stabilization unit, of the second sand stabilization unit and used for blocking sand wind in the prevailing wind direction of the desert area. The sand-proof device is used for sand-proof of the equipment foundation in the desert area.

The invention provides an environmental wind field-oriented cascaded low-altitude torrent probability prediction method, and belongs to the field of atmospheric environment and weather forecast. According to the invention, a cascaded prediction means is adopted to realize driving by sea level air pressure field data, and a scheme for predicting whether low-altitude torrent occurs or not and the probability of the prevailing wind direction is realized, wherein the scheme is rapid, efficient, lightweight and capable of being updated in a rolling manner. Comprising the following steps: S1, identifying low-altitude jet stream and extracting a prevailing wind direction; s2, screening key space modals significantly related to the low-altitude torrent; s3, constructing a multi-classification logistic regression model; s4, constructing a time sequence prediction model; s5, real-time data assimilation and principal component value prediction are carried out; step S6, low-altitude jet stream probability prediction; and S7, real-time and rolling updating of a prediction result is carried out.

A dredging construction method for harbor basins and channels in soil containing hydrogen sulfide. The method comprises: step one, installing hydrogen sulfide detectors at different positions on a trailing suction hopper dredger, using a cloth membrane (5) to partially seal a hatch of a hopper (1), and arranging high-power axial flow fans; step two, on the basis of a wind rose diagram of a harbor basin and channel area, analyzing a prevailing wind direction, a secondary prevailing wind direction and wind speeds thereof, and formulating a trailing suction hopper dredger construction plan on the basis of the wind directions and the wind speeds; step three, adjusting the upward angle of a drag head lip, such that the drag head lip is separated from a mud surface at the bottom of a channel, and using high-pressure water flushing to first disperse mud at the bottom of the channel, such that part of hydrogen sulfide is first volatilized and dissolved in water; step four, using a full-hopper replacement construction method to suction the mud at the bottom of the channel into the hopper (1) of the trailing suction hopper dredger, and during the construction process, turning on the high-power axial flow fans to reduce the concentration of hydrogen sulfide in the air on the trailing suction hopper dredger; and step five, once the hopper (1) is full, driving the trailing suction hopper dredger to a designated mud dumping area for mud dumping.