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Snow depth estimation and early warning method and system for transmission line corridors based on satellite remote sensing

A technology for transmission lines and satellite remote sensing, which is used in forecasting, computing, data processing applications, etc.

Active Publication Date: 2021-04-20
STATE GRID SHANXI ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for estimating and early warning of snow depth in transmission line corridors based on satellite remote sensing, thereby solving the aforementioned problems existing in the prior art

Method used

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  • Snow depth estimation and early warning method and system for transmission line corridors based on satellite remote sensing
  • Snow depth estimation and early warning method and system for transmission line corridors based on satellite remote sensing
  • Snow depth estimation and early warning method and system for transmission line corridors based on satellite remote sensing

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0045] Taking a provincial electric power company as an example, the snow depth of the power grid in the province is estimated, and the snow depth of a 220kV transmission line channel is warned. The overall process is as follows figure 1 As shown, the specific method is as follows:

[0046] Step 1: Get the data and preprocess the data, such as figure 2 shown.

[0047] The data include meteorological station data, power grid micro-meteorological station data, AMSR-E microwave snow depth data, MODIS snow area data and digital elevation model data.

[0048] First, obtain the data. In this example...

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Abstract

The invention discloses a satellite remote sensing-based snow depth estimation and early warning method and system for transmission line corridors, and relates to the field of transmission line snow depth monitoring. S1. Obtain data and preprocess the data; S2. Obtain snow depth distribution based on data assimilation algorithm; S3. Obtain snow depth data distribution of transmission line corridors; S4. Early warning of snow depth for transmission lines. The invention obtains the snow depth distribution of the transmission line corridor with higher precision, and carries out early warning of the snow depth of the transmission line corridor according to the operation suggestion, so as to achieve the purpose of estimating the snow cover change of the transmission line corridor accurately in real time, and the most unfavorable transmission line ice and snow The situation is predicted.

Description

technical field [0001] The invention relates to the field of snow depth monitoring of power transmission lines, in particular to a satellite remote sensing-based snow depth estimation and early warning method and system for power transmission line corridors. Background technique [0002] my country is one of the countries where there are many ice and snow accidents on transmission lines. The ice and snow accidents have seriously threatened the safe operation of my country's power system and caused huge economic losses. The hazards of ice and snow to the line include overload, icing galloping, jumping off ice and insulator ice flashover. Power outages, and because accidents mostly occurred in the severe winter season, the mountains were blocked by heavy snow, the roads were frozen, and it was difficult to repair, resulting in long-term power outages. Therefore, the ice and snow disaster of transmission lines is one of the serious threats faced by many national power grid sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/0635G06Q50/06
Inventor 曹明德原敏宏罗永勤武国亮任学武
Owner STATE GRID SHANXI ELECTRIC POWER