Method and device of lightning stroke risk evaluation of power transmission line

A transmission line and risk assessment technology, applied in the field of transmission lines, can solve problems such as inaccurate assessment results and inability to reflect the risk of lightning strikes on transmission lines

Inactive Publication Date: 2018-02-16
GUANGZHOU POWER SUPPLY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these traditional lightning strike risk assessment methods for transmission lines are based on simplified line structures and operating environments

Method used

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  • Method and device of lightning stroke risk evaluation of power transmission line
  • Method and device of lightning stroke risk evaluation of power transmission line
  • Method and device of lightning stroke risk evaluation of power transmission line

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Embodiment Construction

[0019] 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 and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] Although the steps in the present invention are arranged with labels, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted.

[0021] figure 1 It is a schematic flowchart of a method for lightning strike risk assessment of transmission lines of an embodiment; as figure 1 As shown, the method for the lightning strike risk assessment of the transmission line of the described embodiment includes steps:

[0022] S11. Obtain the lightni...

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Abstract

The invention relates to a method and a device of lightning stroke risk evaluation of a power transmission line. The method includes: acquiring a predetermined lightning damage membership degree function of each evaluation index of lightning stroke risks, and constructing a correlation degree matrix according to towers of a to-be-evaluated power transmission line area and the lightning damage membership degree function of each evaluation index; carrying out solving of correlation factors according to the correlation degree matrix, obtaining certainty degrees and uncertainty degrees of occurrence of lightning damage at the different towers according to the correlation factors, and obtaining basic probability distribution functions of the correlation factors; and using the basic probabilitydistribution functions as Mass functions in an evidence theory, and adopting the DS evidence theory to fuse the different correlation factors to obtain an evaluation result of the lightning stroke risks of the power transmission line. The method can increase an accuracy degree of lightning stroke risk evaluation of the power transmission line.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, in particular to a method, device, storage medium and computer equipment for lightning strike risk assessment of power transmission lines. Background technique [0002] The status assessment of transmission lines is of great significance to ensure the security of the power grid. Among them, the lightning strike risk assessment methods for transmission lines include the procedure method, the electrical geometric model method (EGM), and the pilot model method (LPM). However, these traditional lightning strike risk assessment methods for transmission lines are based on simplified line structures and operating environments, which cannot reflect the impact of local micro-topography on transmission line lightning strike risk, and have the problem of inaccurate assessment results. Contents of the invention [0003] Based on this, the present invention provides a method and a device f...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/0639G06Q50/06
Inventor 陆国俊刘智勇王红斌李瀚儒雷超平谢从珍朱文白剑锋
Owner GUANGZHOU POWER SUPPLY CO LTD
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