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Intelligent power transmission line mountain fire emergency disposal method based on fire behavior feature analysis

A transmission line and characteristic analysis technology, which is applied in fire rescue, medical science, dentistry, etc., can solve problems such as ignorance and inability to accurately assess the impact of wildfires on transmission lines, so as to improve response efficiency, avoid serious power grid accidents, and guarantee Effects on Reliability and Stability

Active Publication Date: 2014-08-06
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the forestry department has formulated corresponding mountain fire emergency response strategies in response to the needs of forest vegetation protection, but they often only consider large-scale mountain fire disasters, ignoring small-area mountain fires that actually pose a threat to power transmission lines, and cannot be based on mountain fire disasters. Behavioral characteristics to accurately assess the impact of wildfires on transmission lines

Method used

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  • Intelligent power transmission line mountain fire emergency disposal method based on fire behavior feature analysis
  • Intelligent power transmission line mountain fire emergency disposal method based on fire behavior feature analysis
  • Intelligent power transmission line mountain fire emergency disposal method based on fire behavior feature analysis

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Embodiment 1

[0040] (1) Calculation of the distance index L of mountain fires. Let the distance between the entrusted transmission line fire point and the transmission line be L f , L f If the distance is less than 500m, it means that the fire point has seriously threatened the safety of the transmission line, so L f =1, P=1, G=1, W=1, wherein P is the vegetation condition index of the position of the fire point, W is the meteorological condition index of the position of the fire point, and the next step directly enters step (3);

[0041] (2) Analysis of fire behavior characteristics of wildfires. Based on the climate, terrain and vegetation conditions of the location of the entrusted transmission line, the fire behavior characteristics of the wildfire are analyzed to determine whether it poses a threat to the entrusted transmission line.

[0042] (2.1) Calculation of the vegetation condition index P. The value method of the vegetation condition index P is:

[0043]

[0044] In for...

Embodiment 2

[0059] (1) Calculation of the distance index L of mountain fires. Let the distance between the entrusted transmission line fire point and the transmission line be L f , if the distance L f If it is greater than 2km, L tends to infinity, that is, where L is the distance index, and the next step goes directly to step (4); otherwise, let where L is the distance index, L f For the distance between the fire point and the transmission line, the next step enters step (2);

[0060] Steps (2)~(3) are the same as in Example 1;

[0061] (4) Make emergency response conclusions. Calculate the danger index of wildfire according to the following formula (5):

[0062] I D = 1 L · P · G · W · S - - - ( 5 )

[0063] In formula (5), I D L is t...

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Abstract

The invention discloses an intelligent power transmission line mountain fire emergency disposal method based on fire behavior feature analysis. The intelligent power transmission line mountain fire emergency disposal method comprises the following steps: (1) calculating a fire point distance index L of a mountain fire; (2) analyzing a fire behavior feature of the mountain fire: (2.1) calculating a vegetation condition index P, (2.2) calculating a terrain condition index G, and (2.3) calculating a meteorological condition index W; (3) calculating a mountain fire area index S; (4) making an emergency disposal conclusion: (4.1) taking emergency measures I-VI, and (4.2) making rules A-E. The method has the advantages that 1) the operability is high, and an effective way is supplied to emergency power transmission line mountain fire disposal; 2) a decision can be quickly made, the response efficiency of the emergency disposal can be greatly improved, severe accidents are avoided, and reliable and stable running of a power grid is guaranteed; 3) the fire extinguishing safety is guaranteed, and the fire extinguishing disposal efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to an intelligent emergency response method for mountain fires in power transmission lines based on analysis of fire behavior characteristics. Background technique [0002] In recent years, with the implementation of national policies such as "returning farmland to forests" and the influence of folk fire customs, the frequency of wildfires near transmission lines has been increasing year by year. In 2013, there were many mountain fire trips or bipolar locking accidents on important cross-regional connection lines such as the UHV AC-DC Fufeng Line, Jinsu Line, Longzheng Line, and Changnan Line. Mountain fires on transmission lines have become a major issue affecting power grid security. Major hidden dangers in operation, and even cause the grid to collapse in severe cases, causing large-scale power outages. At present, the forestry department has formulate...

Claims

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Application Information

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IPC IPC(8): A62C2/00
Inventor 陆佳政郭俊张红先方针李波
Owner STATE GRID CORP OF CHINA
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