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Drawing method of historical forest fire distribution of power transmission line

A transmission line and distribution map technology, which is applied in the field of electric power engineering, can solve problems such as long duration of flames, smoke and dust, and difficulty in switching on, so as to achieve wide coverage, improve accuracy, improve response to sudden wildfires and resist wildfires The effect of disaster capacity

Inactive Publication Date: 2014-07-23
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its flame and smoke last for a long time, so it is difficult to close the switch.

Method used

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  • Drawing method of historical forest fire distribution of power transmission line
  • Drawing method of historical forest fire distribution of power transmission line
  • Drawing method of historical forest fire distribution of power transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Determine the area coordinates. According to the minimum rectangular grid where the designated area of ​​the entrusted province is located, let the rectangular grid be the longitude and latitude of the sides of the rectangular grid A, and use conventional methods to determine the coordinates of the area included in the rectangular grid A;

[0041] (2) Collect fire point data. Based on the coordinates determined in step (1), search online for the mountain fire information in the designated area of ​​the entrusted province monitored by polar-orbiting meteorological satellite remote sensing in the past 10 years. From the searched information, collect the fire point data of the historical fire point of the transmission line, including the monitoring date and fire point coordinates;

[0042] (3) Collect layer information. Based on the data collected in step (2), the geographical boundaries of the entrusted provinces and the layer information of the transmission lines o...

Embodiment 2

[0069] Steps (1)~(4) are the same as in Example 1;

[0070] (5) Raw data screening. According to the precipitation conditions required to be drawn by the minimum rectangular grid A contained in the designated area of ​​the entrusted province in step (1), use conventional methods to select the minimum rectangular grid A required by the fire point data collected in step (2). Fire points required for plotted precipitation conditions;

[0071] Steps (6)-(9) are the same as in Example 1.

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Abstract

The invention discloses a drawing method of historical forest fire distribution of a power transmission line. The drawing method comprises step 1, determining a regional coordinate; step 2, collecting fire point data; step 3, collecting the layer information; step 4, performing square grid division; step 5, screening original data; step 6, processing grid data; step 7, performing forest fire classification; step 8, performing interpolation calculation; step 9, performing distribution extraction; step 10, performing geographic trend layer superposition of the power transmission line. According to the drawing method of the historical forest fire distribution of the power transmission line, the method is clear and operability and practicability are strong; the forest fire distribution of any province or region at any time in the history can be drawn; the coverage is wide and the positioning is accurate; the statistics is convenient, the calculation speed is improved, and the accuracy is also improved; the distribution rule of fire points of a forest fire of the power transmission line at any time can be visually displayed, prevention and control resources can be reasonably distributed, and the capability for dealing with emergency forest fire disasters of a power grid can be improved.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular relates to a method for drawing a historical mountain fire distribution map of a power transmission line based on regional grid division, which is suitable for disaster prevention and mitigation projects of power transmission lines in power systems. Background technique [0002] There are many hills in the south with high forest coverage, but frequent wildfires have caused great damage to the transmission lines running through the forest. The airflow and impurities generated by wildfire burning can easily damage the outer insulation of the wire and cause short-circuit tripping. In 2013, there were as many as 30 fault tripping accidents in Hunan Province alone, 29 of which originated from wildfires. And its flame, soot lasts for a long time, so it is difficult to close the switch. In order to improve the power grid's ability to deal with sudden wildfires, it ...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
Inventor 陆佳政刘毓张红先李波方针
Owner STATE GRID CORP OF CHINA
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