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Method for calculating thunderbolt density

A technique of lightning density and statistical methods, applied in the direction of instruments, etc.

Inactive Publication Date: 2010-02-17
EAST CHINA ELECTRIC POWER TEST & RES INST
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Problems solved by technology

However, in the current field of lightning protection technology, there is no method that can skillfully apply this basic data to obtain accurate lightning density parameters

Method used

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  • Method for calculating thunderbolt density

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Embodiment Construction

[0015] The lightning density statistical method of the present invention will be described in further detail below in conjunction with the accompanying drawings. see figure 1 , which shows a flow chart of a preferred embodiment of the lightning density statistical method of the present invention.

[0016] Firstly, step S1 is executed to extract relevant parameters of lightning strike information from the original data, and remove error data therein. In this embodiment, the raw data is information about landmines collected by the lightning location system based on magnetic field positioning and time difference positioning principles, including the time and location of each landmine occurrence, and the location is represented by longitude and latitude. If the current analysis of the lightning density map is required in the future, the lightning current magnitude information must also be obtained from the original data. The error data is information about space mines or interfe...

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Abstract

The invention provides a method for calculating thunderbolt density, which is used for calculating the thunderbolt density in a studying area and drawing a corresponding thunderbolt density distribution graph. The method comprises the following steps: firstly, extracting parameters related to thunderbolt information from original data, and removing error data in the original data; secondly, setting size of grids of the thunderbolt density distribution graph, dividing the studying area according to the size of the grids, and relating the grids to the area corresponding to the grids; thirdly, calculating the thunderbolt frequency of the area corresponding to each grid in a certain period of time; fourthly, calculating the thunderbolt density of the area corresponding to each grid; fifthly, performing data processing, wherein classification and partition are carried out according to the strength of the thunderbolt density, and a boundary value is rounded; and finally, drawing the thunderbolt density distribution graph according to the result of the data processing. The method for calculating the thunderbolt density can obtain the thunderbolt density distribution of the studying area by processing the data of a thunderbolt positioning system so as to guide the thunderbolt prevention in the area.

Description

technical field [0001] The invention belongs to the technical field of lightning protection and relates to a statistical method for lightning strike density. Background technique [0002] Lightning strikes are the main cause of line trips and outages. Grasping the law of lightning activities in the region is of great significance for both the lightning protection design of new lines and the lightning protection transformation of existing lines. At present, when the electric power department divides the areas with strong and weak lightning activities, it is still based on the number of thunderstorm days in the area provided by the meteorological department, and when calculating the number of lightning strikes on transmission lines, it uses the number of thunderstorm days multiplied by the average lightning strike density. This method has great limitations and cannot reflect the actual law of lightning activity. [0003] The lightning location system developed in the mid-197...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/00
Inventor 顾承昱李福兴赵文彬
Owner EAST CHINA ELECTRIC POWER TEST & RES INST
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