Method and system for determining damage degrees of electric transmission lines in flood disaster

A technology for transmission lines and flood disasters, which is applied in the field of power transmission and can solve problems such as weak basic data

Inactive Publication Date: 2017-08-18
CHINA ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the spatio-temporal complexity of the flood disaster itself and the lack of basic data for disaster loss research, the research on determining the damage degree of transmission lines in flood disasters in my country is still at a relatively preliminary stage. Effective methods for determining the damage degree of transmission lines in flood disasters have been widely adopted and promoted

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  • Method and system for determining damage degrees of electric transmission lines in flood disaster
  • Method and system for determining damage degrees of electric transmission lines in flood disaster

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Embodiment Construction

[0025] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0026] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention relates to a method and system for determining damage degrees of electric transmission lines in flood disaster. The method comprises the following steps of: obtaining remote sensing image data of an electric transmission line flood disaster inundated area by utilizing a remote sensing technology, and carrying out data preprocessing on the data; combining elevation information, control point information, a numerical value calculation model and a grid operation tool to carry out fusion analysis on the preprocessed remote sensing image data so as to extract an electric transmission line flood disaster range, combining electric transmission line data of the electric transmission line flood disaster inundated area to carry out spatial overlay analysis on the basis of the range extraction result, and extracting electric transmission line data of a disastrous area; carrying out threshold value distinguishing on water bodies and other surface features except the water bodies by adoption of a threshold value method on the basis of history data of the water bodies in the disastrous area and elevation information of a DEM, so as to extract damage area data; and determining a damage degrees of electric transmission lines in the flood disaster by utilizing a disaster assessment model and a situation pre-warning and analysis model on the basis of the extracted damage range data.

Description

technical field [0001] The invention relates to the technical field of power transmission, and more particularly, to a method and system for determining the damage degree of a power transmission line in a flood disaster. Background technique [0002] my country has a vast territory and complex natural conditions. With the greenhouse effect of global warming, natural disasters such as floods, freezes, and droughts occur frequently. The accidents caused by natural disasters in the power system are increasing year by year. one of the important constraints. Under the influence of flood disasters, the failure probability of transmission lines increases significantly, and the possibility of multiple related or unrelated failures on transmission lines increases sharply. [0003] Due to the spatio-temporal complexity of the flood disaster itself and the lack of basic data for disaster loss research, the research on determining the damage degree of transmission lines in flood disaste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G01D21/02G06K9/36G06K9/62G06K9/34G06T7/30
CPCG01D21/02G06T2207/30181G06T2207/10032G06T2207/20221G06V20/13G06V10/20G06V10/247G06V10/267G06F18/25
Inventor 欧文浩费香泽程永锋刘彬赵斌滨
Owner CHINA ELECTRIC POWER RES INST
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