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A method and device for identifying key lines of a power grid under typhoon disaster conditions

A technology of key lines and identification methods, applied in circuit devices, AC network circuits, electrical components, etc., can solve problems such as lack of consideration of typhoon natural disasters

Active Publication Date: 2020-09-25
HUIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the existing research on key line identification lacks consideration of natural disasters such as typhoons

Method used

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  • A method and device for identifying key lines of a power grid under typhoon disaster conditions
  • A method and device for identifying key lines of a power grid under typhoon disaster conditions
  • A method and device for identifying key lines of a power grid under typhoon disaster conditions

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Embodiment Construction

[0094] In order to better understand the purpose, technical solution and technical effect of the present invention, the present invention will be further explained below in conjunction with the accompanying drawings and embodiments. At the same time, it is stated that the embodiments described below are only used to explain the present invention, and are not intended to limit the present invention.

[0095] In one embodiment, as figure 1 As shown, it is a flowchart of a method for identifying key lines of a power grid under the typhoon disaster condition of an embodiment, including steps:

[0096] S101. According to the geographical distribution of towers and lines in the geographical information distribution system of the power grid, combined with the real-time typhoon forecast information in the typhoon weather forecasting system, calculate the grid line fault set under the typhoon forecast path.

[0097] S102. Calculate the failure probability of each line in the fault set...

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Abstract

The invention relates to a method and device for recognizing a critical path of a power grid under the condition of typhoon damage. The method comprises the following steps: recognizing lines of a line fault set of the power grid under the condition of the typhoon damage; calculating the fault probability of the various lines in the line fault set; calculating direct load loss and potential load loss after running stopping due to line fault; calculating local risks of running stopping of the lines; and calculating global risks of the lines of the fault set under various predicted paths, wherein the criticality of the lines is increased along with increasing of the global risks. According to the technical scheme, geographical position distribution of a tower and lines in a power grid geographic information distribution system is fully considered, real-time typhoon prediction information in a typhoon weather forecast system is adopted fully, reference is provided for formulation of an effective wind prevention and reinforcement strategy for the power grid by calculated power grid critical lines under the condition of typhoon damage, and the typhoon resistance of the power grid is improve favorably.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a method and device for identifying key lines of a power grid under typhoon disaster conditions. Background technique [0002] my country is seriously affected by typhoons. In recent years, typhoons have landed in coastal areas of my country every year, causing accidents such as line tripping, voltage loss in substations, and damage to towers in power grids in typhoon-affected areas, seriously threatening the safety and stability of power grids. [0003] In order to improve the emergency response capability of the power grid in the face of typhoon disasters, some scholars have conducted research on it and achieved some research results. For example, some scholars have proposed the principles of power grid dispatching and adjustment under typhoon weather, the principle of power grid accident handling, and a real-time early warning method for power grids based on effective decision-mak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06H02J13/00H02J3/00
CPCY02A30/00
Inventor 叶晓君王志奎李惠松林冠强莫天文林振智杨莉文福拴
Owner HUIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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