Method for evaluating probability of forest fire induced transmission line fault

A technology of failure probability and transmission lines, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve the problems of not meeting the requirements of online safety analysis and early warning

Active Publication Date: 2013-12-25
STATE GRID ELECTRIC POWER RES INST +1
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Problems solved by technology

[0006] In recent years, the frequency of natural disasters has gradually increased, which seriously threatens the security and stability of the power grid. However, there is no probability quantitative evaluation technology that meets the requirements of online security analysis and early warning. Therefore, it is urgent to carry out research and development of related technologies.

Method used

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  • Method for evaluating probability of forest fire induced transmission line fault
  • Method for evaluating probability of forest fire induced transmission line fault
  • Method for evaluating probability of forest fire induced transmission line fault

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Embodiment Construction

[0082] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0083] Figure 13 Step 1 describes the collection of real-time wildfire forecast and live information (burning location, burning height, etc.), general weather forecast and live information (air density, air humidity), and real-time power grid working condition information in the control center.

[0084] Figure 13 In step 2, the line is segmented according to the geographical characteristics of the line corridor and the surrounding environment characteristics, and the lines with the same geographical characteristics and surrounding environment characteristics are divided into one section.

[0085] Figure 13 Step 3 in the middle is to combine various information of meteorology, terrain and wildfires, and evaluate various dynamic variables according to the impact of different terrains (flat terrain and sloped areas) on wildfire burning, including...

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Abstract

The invention discloses a method for evaluating probability of forest fire induced transmission line fault, which belongs to the technical field of power systems and automation thereof. By adopting the method disclosed by the invention, quantitative evaluation on probability of forest fire induced transmission line fault is realized, an accurate line fault probability model is created according to the principle of the forest fire induced transmission line fault, internal and external factors related to the transmission line fault are correctly reflected, the evaluation on the probability of the forest fire induced transmission line fault is not depended on the accumulation of historical data, and key factors can be considered, so that the adaptability is strong. The method disclosed by the invention is used for greatly promoting the risk management of transmission lines and improving the external disaster defense ability of the power systems.

Description

technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof. More precisely, the invention relates to a method for evaluating the failure probability of transmission lines caused by wildfires. Background technique [0002] Due to the reverse distribution of energy and load centers in my country, it is necessary to use long-distance transmission lines to transmit electric energy from power generation centers to load centers, and long-distance transmission lines will pass through various landform environments. For transmission lines passing through forested areas and mountainous areas with dense vegetation, the safe and reliable operation of equipment is affected by natural environment and weather changes, and wildfires caused by high temperature, man-made or lightning fires are one of the main disasters that threaten the safety and operation of lines . First of all, due to the increasingly tight resources of transmissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 薛禹胜吴勇军
Owner STATE GRID ELECTRIC POWER RES INST
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