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CN-122020230-A - Fan impeller obstacle sweeping risk identification method and device, electronic equipment and storage medium

CN122020230ACN 122020230 ACN122020230 ACN 122020230ACN-122020230-A

Abstract

The disclosure provides a risk identification method and device for a fan impeller to sweep obstacles, electronic equipment and a storage medium. The risk identification method comprises the steps of constructing a simulated topographic map for simulating the topographic situation of a wind power plant after construction is completed based on an actual measured topographic map of the wind power plant and construction information of each machine site, inputting wind parameter information of each machine site and unit information of an installed fan at each machine site into a fan load simulation model to obtain tower top displacement information of each fan after installation and operation, respectively taking to-be-identified risk topographic points around each machine site as target topographic points, determining the minimum distance from the hub center of the target fan to the obstacle at the target topographic points based on the tower top displacement information of the installed target fan at the machine site, the height of the obstacle at the target topographic points and the simulated topographic map, and determining that the risk of the target fan to sweep the obstacle at the target topographic points exists if the difference between the minimum distance and the radius of the impeller is smaller than a preset threshold value.

Inventors

  • GAO WEI
  • LI SHIJIE
  • GUO JUNWEI

Assignees

  • 北京金风科创风电设备有限公司

Dates

Publication Date
20260512
Application Date
20241030

Claims (12)

  1. 1. A risk identification method for a fan impeller to sweep an obstacle, comprising: Constructing a simulated topography map for simulating the topography situation after the wind power plant construction is completed based on the actually measured topography map of the wind power plant and the construction information of each machine site; Inputting wind parameter information of each machine site and unit information of the installed fans at each machine site into a fan load simulation model to obtain tower top displacement information of each fan after installation and operation; taking the terrain points of the risk to be identified around each machine point as target terrain points, and determining the minimum distance from the hub center of the target fan to the obstacle at the target terrain points based on the displacement information of the top of the tower of the target fan to be installed at the machine point, the height of the obstacle at the target terrain point and the simulated terrain map; and if the difference value between the minimum distance and the impeller radius of the target fan is smaller than a preset threshold value, determining that the risk that the impeller sweeps to an obstacle at the target terrain point exists in the running process of the target fan.
  2. 2. The risk identification method according to claim 1, wherein the step of constructing a simulated topography map for simulating a topography situation after completion of the wind farm construction based on the measured topography map of the wind farm and construction information of each machine site comprises: simulating the elevation of a platform area after construction is completed in the actually measured topographic map based on construction information of the platform area of each machine site; and simulating the elevation of the slope region after the construction is completed in the actually measured topographic map based on the simulated elevation of the platform region and the construction information of the slope region around the platform region so as to obtain the simulated topographic map.
  3. 3. The risk identification method according to claim 2, wherein the step of simulating the elevation of the slope region after the completion of the construction in the actual measurement topography based on the simulated elevation of the platform region, the construction information of the slope region around the platform region, comprises: Determining the outer boundary of the side slope region after the construction is completed in the actually measured topographic map based on the construction information of the side slope region; triangulating the slope region based on a plurality of topographical points on the outer boundary of the platform region and a plurality of topographical points on the outer boundary of the slope region to obtain a triangular network with any one triangle having the largest inner angle as possible; And interpolating to obtain the elevation of each to-be-interpolated topographic point in the side slope area based on the elevations of three vertexes of the triangle where the to-be-interpolated topographic point is located.
  4. 4. The risk identification method of claim 1, wherein the step of determining a minimum distance from a hub center of the target fan to an obstacle at the target terrain point comprises: Determining the minimum distance from the top center of the tower of the target fan to an obstacle at the target terrain point based on the top displacement information of the tower of the target fan, the height of the hub and the elevation angle of the main shaft of the impeller, geographic coordinates of the machine point and the target terrain point in the simulated terrain map, and the height of the obstacle at the target terrain point; The minimum distance of the hub center to the obstacle at the target terrain point in the blade direction is determined based on the minimum distance of the hub center to the obstacle at the target terrain point, the blade cone angle, and the distance of the hub center to the tower top center.
  5. 5. The risk identification method of claim 4, wherein the step of determining a minimum distance in the blade direction from the tower top center to the obstacle at the target terrain point comprises: determining a vertical distance from the center of the top of the tower to an obstacle at the target terrain point based on the hub height, the elevation angle of the impeller main shaft, the distance from the center of the hub to the center of the top of the tower, the elevations of the machine point and the target terrain point in the simulated terrain map, and the height of the obstacle at the target terrain point; And determining the minimum distance from the center of the top of the tower to the obstacle at the target terrain point in the blade direction based on the vertical distance, the displacement information of the top of the tower and the horizontal coordinates of the machine point and the target terrain point in the simulated terrain map.
  6. 6. The risk identification method of claim 1, further comprising: If the difference value between the minimum distance and the impeller radius of the target fan is smaller than a preset threshold value, the target terrain point is used as a risk point to be added into a risk point set corresponding to the machine position point; And outputting a risk point set corresponding to each machine location point.
  7. 7. The risk identification method of claim 6, further comprising: aiming at a risk point set corresponding to each machine location point, determining a target risk point with highest risk from the risk point set; And determining the safety hub height of the fan to be installed at the machine position, wherein the safety hub height is the lowest hub height which enables the fan to be free of the risk that the impeller sweeps to the obstacle at the target risk point in the running process.
  8. 8. The risk identification method of claim 7, wherein the step of determining a safe hub height of a fan to be installed at the machine location comprises: Determining the distance from the top center of the tower of the fan to the obstacle at the target risk point under the condition of meeting the limit safety distance, wherein the limit safety distance is that the minimum distance from the obstacle at the target risk point to the hub center of the fan reaches the limit safety distance; the safe hub height is determined based on a distance from the tower top center to the obstacle, a horizontal distance from the tower top center to the target risk point, a vertical distance from the tower top center to the obstacle, an original hub height of the fan under limit safe distance conditions.
  9. 9. A risk identification device for a fan wheel to sweep an obstacle, comprising: a topographic map construction unit configured to construct a simulated topographic map for simulating a topographic situation after completion of the construction of the wind farm based on the measured topographic map of the wind farm and the construction information of each site; the load simulation unit is configured to input wind parameter information of each machine site and unit information of the installed fans at each machine site into a fan load simulation model to obtain tower top displacement information after the installed operation of each fan; A distance determining unit configured to determine a minimum distance from a hub center of a target fan to an obstacle at each machine location point based on tower top displacement information of the target fan to be installed at the machine location point, a height of the obstacle at the target location point, and the simulated topography map, respectively taking the to-be-identified risk topography points around the machine location point as target topography points; And the risk determining unit is configured to determine that the risk of the impeller sweeping to the obstacle at the target terrain point exists in the running process of the target fan if the difference value between the minimum distance and the impeller radius of the target fan is smaller than a preset threshold value.
  10. 10. A computer readable storage medium storing a computer program, which when executed by a processor causes the processor to perform the risk identification method of a fan wheel scanning obstacle according to any one of claims 1 to 8.
  11. 11. An electronic device, the electronic device comprising: A processor; A memory storing a computer program which, when executed by a processor, causes the processor to perform the fan wheel obstacle-sweeping risk identification method of any one of claims 1 to 8.
  12. 12. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the risk identification method of a fan wheel sweeping obstacle according to any one of claims 1 to 8.

Description

Fan impeller obstacle sweeping risk identification method and device, electronic equipment and storage medium Technical Field The present disclosure relates generally to the field of wind power generation technology, and more particularly, to a risk identification method, apparatus, electronic device, and storage medium for a fan impeller to sweep obstacles. Background In the running process of a wind farm, the distance between an impeller of a wind generating set (hereinafter, simply referred to as a fan) and surrounding obstacles is a key safety and performance index. Although the design stage has considered the distance between the fan and the obstacle, the fan wheel may still approach or sweep around obstacles (e.g., terrain or vegetation) during operation due to practical factors such as changes in meteorological conditions, dynamic terrain adjustments, etc., increasing the risk of equipment damage. In recent years, with the progress of fan technology, the diameter of the impeller of the fan is continuously increased, so that the clearance of the impeller from the ground is gradually reduced, and particularly in complex mountain or hilly terrains, the collision risk of the impeller of the fan and surrounding obstacles is further increased, so that the recognition of the collision risk by researching the distance between the impeller of the fan and the surrounding obstacles under the complex terrains is of great importance. Currently, evaluation of the distance between the fan wheel and surrounding obstructions relies primarily on manual observation and empirical judgment by the relevant engineers. The method has a certain limitation, because the method relying on manual judgment is easily influenced by subjective factors and individual experience, the rapid and comprehensive analysis and judgment of a large-scale wind field cannot be realized, and project scheme iteration consumes a great deal of manpower and time. In order to more effectively evaluate whether there is a risk of the fan wheel sweeping to a nearby obstacle during operation, it is desirable to develop an automated analytical calculation method to improve the accuracy and efficiency of risk analysis. Disclosure of Invention Exemplary embodiments of the present disclosure provide a risk identification method, apparatus, electronic device, and storage medium for a fan wheel to scan obstacles, which can effectively solve the above-mentioned problems of the prior art. According to a first aspect of the embodiment of the disclosure, a risk identification method for sweeping obstacles by a fan impeller is provided, which comprises the steps of constructing a simulated topographic map for simulating the topographic situation of a wind farm after construction is completed based on an actual measured topographic map of the wind farm and construction information of each machine site, inputting wind parameter information of each machine site and unit information for installing fans at each machine site into a fan load simulation model to obtain tower top displacement information after installation and operation of each fan, respectively taking to-be-identified risk topographic points around each machine site as target topographic points, and determining the risk of sweeping the target fan to the obstacle at the target topographic point in the operation process based on the tower top displacement information of the target fan to be installed at the machine site, the height of the obstacle at the target topographic point and the simulated topographic map, and if the difference between the minimum distance and the impeller radius of the target fan is smaller than a preset threshold. Optionally, the step of constructing the simulated topography for simulating the topography situation after the wind farm construction is completed based on the actual measurement topography of the wind farm and the construction information of each machine site comprises simulating the elevation of the platform area after the construction is completed in the actual measurement topography based on the construction information of the platform area of each machine site, and simulating the elevation of the side slope area after the construction is completed in the actual measurement topography based on the simulated elevation of the platform area and the construction information of the side slope area around the platform area, so as to obtain the simulated topography. Optionally, the step of simulating the elevation of the slope region after construction is completed in the actually measured topographic map based on the simulated elevation of the platform region and the construction information of the slope region around the platform region comprises determining the outer boundary of the slope region after construction is completed in the actually measured topographic map based on the construction information of the slope region, triangulating the slope region based on a plural