Risk assessment and emergency decision-making method for forest fire disaster of power transmission line

A transmission line and risk assessment technology, applied in the field of electrical engineering, can solve problems such as prediction and early warning of mountain fire trips, large deviations between emergency decision-making and actual conditions, failure to reduce power grid losses, and lack of scientific calculations

Active Publication Date: 2015-09-16
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0004] At present, in terms of prediction and early warning, existing methods calculate the fire hazard index based on factors such as the distance from the fire point to the transmission line, the vegetation conditions at the location of the fire point, the terrain at the location of the fire point, and the area index of the fire area. The probability of mountain fire tripping of transmission lines and the risk value after tripping of transmission lines are not considered in combination with the mechanism of mountain fire tripping of transmission lines
Therefore, the fire hazard index cannot accurately assess the risk of wildfires to transmission lines
In terms of emergen

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  • Risk assessment and emergency decision-making method for forest fire disaster of power transmission line
  • Risk assessment and emergency decision-making method for forest fire disaster of power transmission line
  • Risk assessment and emergency decision-making method for forest fire disaster of power transmission line

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Embodiment Construction

[0055] Below in conjunction with embodiment, the present invention will be further described.

[0056] The embodiment of the present invention includes the following steps.

[0057] (1) Collect Huodian satellite monitoring data. From the infrared satellite remote sensing data released by the National Meteorological Satellite Center, the fire point data information is collected online, and the data information includes the coordinates of the fire point and the area of ​​the fire field.

[0058] (2) Obtain the mountain fire warning information of the transmission line. The fire point information is imported into the transmission line mountain fire monitoring and early warning system, and combined with the line tower coordinates in the transmission line mountain fire monitoring and early warning system, the transmission line mountain fire warning information is obtained. The information includes the number of the nearest tower from the fire point, the straight-line distance fro...

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Abstract

The invention discloses a risk assessment and emergency decision-making method for forest fire disasters of a power transmission line. The risk assessment and emergency decision-making method comprises the steps of: calculating probability of field forest fire causing trip of the power transmission line through combining a power transmission line forest fire tripping mechanism, calculating load loss after trip of the power transmission line, and assessing value-at-risk of trip according to the trip probability and load loss; and then calculating field forest fire handling priority of the power transmission line according to a voltage class of the power transmission line, forest fire trip comprehensive load loss amount and forest fire trip value-at-risk, and giving an optimal decision-making scheme of configuring available resources scientifically. By adopting the method, the effect of handling the forest fire quickly and accurately according to the optimal scheme can be achieved, the method is novel in idea and is clear in process, and can provide efficient and economical technical means for handling the forest fire of the power transmission line in the field.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to a risk assessment and emergency decision-making method for mountain fire disasters on power transmission lines. Background technique [0002] As the country's policy of "returning farmland to forests" becomes more and more favorable, barren mountains and wastelands are gradually covered by dense vegetation, and the vegetation near the transmission line corridor is becoming denser and denser. Extreme weather can easily lead to large-scale wildfires, which not only threaten the ecological environment and the safety of human life and property in the fire-affected area. At the same time, wildfires near the transmission corridor will cause the transmission line to trip, which seriously threatens the safe and stable operation of my country's power grid. In 2003 alone, there were 23 trips of 220kV lines in Hunan Province due to wildfires, and the total number...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
Inventor 陆佳政周特军李波方针张红先吴传平
Owner STATE GRID CORP OF CHINA
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