Electric transmission line forest fire early-warning method

A technology for transmission lines and mountain fires, which is applied in the field of early warning of mountain fires on transmission lines in power systems, and can solve problems such as air gap insulation damage, low disposal efficiency, and tripping

Active Publication Date: 2015-01-07
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0002] Affected by the custom of using fire in the wild, wildfires often occur near the corridors of transmission lines passing through mountainous forests, resulting in frequent tripping accidents of transmission lines, seriously endangering the stable operation of the power system
Wildfires can easily cause insulation damage in the air gap around the line, and then break down the gap, resulting in tripping
The insulation damage caused by high temperature needs to last for a long time, and the operating overvoltage generated by reclosing is obviously higher than the working voltage, so it is extremely difficult to succeed in reclosing for a period of time, which further increases the hazards of the power system caused by wildfires
However, the existing wildfire disposal methods are carried out after the occurrence of wildfires, and it is difficult to allocate sufficient manpower and material resources for prevention and control in a timely manner. The disposal efficiency is low and passive, causing certain losses

Method used

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  • Electric transmission line forest fire early-warning method
  • Electric transmission line forest fire early-warning method
  • Electric transmission line forest fire early-warning method

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Experimental program
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Effect test

Embodiment approach 1

[0029] Embodiment 1: This embodiment is an embodiment in which early warning periods are divided by month.

[0030] Implementation target areas: Anhui, Shaanxi, Yunnan, Zhejiang, Chongqing, Sichuan, Shanxi, Hubei, Hunan, Jiangxi, Guizhou, Guangdong, Fujian.

[0031] The specific implementation steps are as follows:

[0032] (1) Online collection of historical 10-year satellite monitoring fire point data of the above-mentioned provinces; collection of historical 10-year daily precipitation data of each meteorological station in the above-mentioned provinces from the meteorological department; collection of geographical area of ​​the above-mentioned provinces from the surveying and mapping department.

[0033] (2) Divide early warning periods by month.

[0034] (3) Determination of fire point factor

[0035] (3.1) According to the number of fire spots monitored by satellites, the number of fire spots in the target area is counted monthly, and the daily average fire spot densit...

Embodiment approach 2

[0083] Embodiment 2: This embodiment is another embodiment in which the early warning periods are divided according to Qingming, Lixia, Eargrain, Summer Solstice, Lidong, Winter Solstice, Minor Cold, and Great Cold in the twenty-four solar terms.

[0084] Implementation target area: Same as implementation method 1.

[0085] Step (1) is the same as Embodiment 1.

[0086] (2) Time periods are divided according to Qingming, Lixia, Eargrass, Summer Solstice, Lidong, Winter Solstice, Minor Cold, and Great Cold. Each solar term takes the day of the solar term and 3 days before and after each (7 days in total) as a time period.

[0087] (3) According to the number of fire points monitored by satellites, the number of fire points in each province is counted according to the above-mentioned solar terms, and the daily average fire point density ρ of the above-mentioned solar terms in each province is calculated from the area of ​​each province and the number of days in a period (7 days)...

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Abstract

The invention discloses an electric transmission line forest fire early-warning method. According to the method, the forest fire early-warning levels of current electric transmission lines at the corresponding period are calculated according to historical fire point data monitored by a satellite, rainfall data and industrial and agricultural customs with fire of a target area, and an early-warning list according to the early-warning levels is made. Line operation and maintenance staff can reasonably arrange forest fire preventing resources according to the current early-warning levels provided through the method, forest fire prevention and control efficiency and the resource utilization rate are effectively improved, waste of manpower and materials is reduced, the trip-out rate of the electric transmission line due to forest fires is reduced, and safety and stability of an electric system are improved.

Description

technical field [0001] The invention belongs to a mountain fire early warning method for a power transmission line of a power system. Background technique [0002] Affected by the custom of using fire in the wild, wildfires often occur near the corridors of transmission lines passing through mountain forests, resulting in frequent tripping accidents of transmission lines and seriously endangering the stable operation of the power system. Wildfires can easily cause insulation damage in the air gap around the line, and then break down the gap, resulting in tripping. The insulation damage caused by high temperature needs to last for a long time, and the operating overvoltage generated by reclosing is obviously higher than the working voltage, so it is extremely difficult to succeed in reclosing for a period of time, which further increases the hazards of the power system caused by wildfires. However, the existing wildfire disposal methods are all carried out after the occurren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 陆佳政刘毓张红先李波方针吴传平
Owner STATE GRID CORP OF CHINA
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