8 results about "Prevailing winds" patented technology

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 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.

This invention discloses a segmented assessment method for transmission lines based on the coupling of micro-topographic axis and wind direction. The method includes the following steps: segmenting the transmission line and calculating the axial azimuth of each segment; determining the axial azimuth of the micro-topographic axis, obtaining the prevailing wind direction angle at the location of the micro-topographic axis, and calculating the minimum axial angle between the two; calculating the normal relative elevation difference index of the micro-topographic axis; calculating the spatial relationship between each transmission line segment and the micro-topographic axis; and coupling the minimum axial angle, normal relative elevation difference index, and spatial relationship between each transmission line segment and the micro-topographic axis to construct a multi-dimensional risk profile of the transmission line segment. This application enables refined analysis of different line segments, avoids the problem of spatial information averaging caused by overall analysis, and thus significantly improves the spatial accuracy of transmission line assessment in complex terrain areas.

This invention provides a method and system for analyzing the relationship between terrain slope and wind speed acceleration effect under prevailing wind direction. The method includes: determining the terrain slope under prevailing wind direction based on hillside terrain parameters within the range of the prevailing wind direction angle; obtaining the wind speed acceleration ratio corresponding to the hillside terrain based on fluid simulation analysis; and constructing a relationship curve between the terrain slope and the wind speed acceleration ratio based on the terrain slope and the wind speed acceleration ratio. The method provided by this invention constructs a relationship curve between the terrain slope and the wind speed acceleration ratio under prevailing wind direction using the terrain slope determined by hillside terrain parameters and the wind speed acceleration ratio obtained from simulation analysis. This provides data support for analyzing the intrinsic relationship of wind speed acceleration effect caused by hillside slope and provides a technical path for directly obtaining the wind speed acceleration ratio through hillside slope.

This invention discloses a semi-active control omnidirectional magnetorheological elastomer (MLE) vibration damping device and control method suitable for wind turbine towers, comprising an electric drive turntable module, a MLE vibration damping module, and a pressure-magnetic synergistic stabilization module. The electric drive turntable module uses a pressure sensor ring to identify wind direction, driving the turntable to align the vibration damping module's vibration direction with the wind direction, and periodically oscillating near the prevailing wind direction to cope with turbulence. The MLE vibration damping module achieves synchronous movement of multiple sets of MLEs through a linkage mechanism, using electromagnetic fields to adjust stiffness. The pressure-magnetic synergistic stabilization module senses upward force through a pressure sensor and generates a balancing magnetic force to ensure stable operation. This device employs a dual-variable intelligent control system combining the variable stiffness and damping characteristics of the MLE with rod adjustment, optimizing rod states and unified current in real time based on spectrum analysis to achieve wide-bandwidth, precise, and efficient semi-active vibration damping, effectively improving the vibration resistance of wind turbine towers.

This invention discloses a method, device, and medium for arranging wind turbines in a wind farm area, applicable to the field of wind farm design. This arrangement method sets turbine positions on grid nodes, considering various conditions such as different prevailing wind directions, restricted areas, and multiple spacing ranges for wind turbines. While considering different prevailing wind directions, it also considers restricted areas, deleting grid nodes located within these areas. Furthermore, it adjusts the lateral or longitudinal spacing of the ellipses to draw different ellipses, deleting grid nodes within the ellipses except for the center point of the turbine placement location. This ensures a certain spacing range between wind turbines, minimizing the wake effect between them. It avoids the problem of relying on manual experience for individual arrangement, which can lead to suboptimal wake losses. This method achieves a superior wake loss reduction effect from the arrangement method.