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Super-efficiency envelope analysis method and system for power grid wildfire disaster hazard degree

A technique of hazard level and envelope analysis, applied in data processing applications, climate sustainability, instruments, etc., can solve the problems of accurate and efficient rescue of mountain fire disasters, rough classification method of mountain fire danger level, power grid mountain fire disaster There are many evaluation indicators and other issues to achieve the effect of strong practicability, convenient operation and precise rescue

Active Publication Date: 2020-04-07
STATE GRID HUNAN ELECTRIC POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing patents only divide the danger level of wildfire disaster power grids based on the physical characteristics of wildfires or the static analysis results of power grids based on human experience. Static, dynamic, and transient analysis results of the power grid under wildfire disasters. At the same time, there are many evaluation indicators for power grid wildfire disasters. The existing method for dividing the danger level of wildfires is too rough to meet the needs of accurate and efficient rescue of wildfire disasters.

Method used

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  • Super-efficiency envelope analysis method and system for power grid wildfire disaster hazard degree
  • Super-efficiency envelope analysis method and system for power grid wildfire disaster hazard degree
  • Super-efficiency envelope analysis method and system for power grid wildfire disaster hazard degree

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Embodiment 1

[0032] This embodiment discloses a super-efficiency envelope analysis method for the danger degree of a mountain fire disaster in a power grid. Specifically include:

[0033] Step 1. Through the transmission line mountain fire monitoring and early warning system built by the State Key Laboratory of Power Transmission and Transformation Equipment Disaster Prevention and Mitigation, the physical characteristic parameters of the mountain fire disaster are obtained, mainly including: the area of ​​the fire site, the distance from the fire point to the alarm line, and terrain conditions , vegetation conditions, meteorological conditions (wind speed, wind direction, relative humidity, temperature), etc. A total of three fire points were monitored at a certain moment, and the obtained physical characteristic parameters of each fire point are shown in Table 1.

[0034] Table 1:

[0035]

[0036] Step 2. Calculate the corresponding normalized physical characteristic index accordin...

Embodiment 2

[0058] Corresponding to the above-mentioned method embodiments, this embodiment discloses a super-efficiency envelope analysis system for the risk degree of a power grid mountain fire disaster.

[0059] The system of this embodiment includes:

[0060] The first processing unit is used to obtain the physical characteristic parameters of the mountain fire disaster, calculate the corresponding normalized physical characteristic index, and obtain the fire area index S of the i-th fire point i , distance index D of mountain fire to warning line i , terrain condition index G i , vegetation condition index P i , Meteorological condition index M i ;

[0061] The second processing unit is used to calculate the normalized power grid impact characteristic index of each wildfire fire point according to the load loss, voltage margin, power angle margin, and frequency margin index when the line fault is affected by the wildfire, and obtain The i-th fire point load loss index L i , vol...

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Abstract

The invention relates to the technical field of power grid safety, and discloses a super-efficiency envelope analysis method and system of power grid mountain fire disaster danger level. Rescuing is precisely guided. The method includes the steps of obtaining physical feature parameters of a mountain fire disaster, calculating the fire field area index, the distance index between a mountain fire and an alarm circuit, the terrain condition index, the vegetation condition index and the meteorological condition index of all fire points, calculating the load loss index, the voltage margin index, the power angle margin index and the frequency margin index of all the fire points according to the load loss, the voltage margin, the power angle margin and the frequency margin indexes during circuitfailure affected by the mountain fire, calculating the power grid danger level comprehensive evaluating index of the mountain fire disaster on the basis of a super-efficiency data envelope analysis method, and screening out an optimal output-to-input put-in scheme from many put-in schemes based on limited rescue resources according to the fire point power grid danger level represented by the power grid danger level comprehensive evaluating index K.

Description

technical field [0001] The invention relates to the technical field of power grid safety, in particular to a super-efficiency envelope analysis method and system for the danger degree of a wildfire disaster in a power grid. Background technique [0002] Wildfires degrade air insulation on transmission lines, causing line trips. In recent years, wildfire disasters have occurred frequently and are on the rise. When wildfires break out, there are as many as thousands of them a day, which can easily lead to large-scale wildfire trip accidents. important disaster. When wildfires break out in a large area, due to the limited number of fire extinguishing equipment, the wildfires that pose a great threat to the power grid must be dealt with first. Therefore, it is necessary to study the risk degree analysis method of the wildfire disaster power grid to provide scientific guidance for the optimal disposal of wildfire disasters. [0003] Patents ZL201410191734.2, CN103942458A and CN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCY02A90/10
Inventor 陆佳政郭俊简洲李波方针徐勋建杨莉
Owner STATE GRID HUNAN ELECTRIC POWER