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A real-time mapping method for transmission line icing based on plateau micro-topography

A power transmission line, real-time drawing technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of high risk, high cost and low efficiency of artificial ice observation, and achieve improved safety and reliability, The effect of reliable technical support

Active Publication Date: 2017-10-17
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a real-time drawing method for transmission line icing aiming at plateau micro-topography, so as to solve the defects of insufficient consideration of real-time weather and plateau micro-topography in the research model of transmission line icing existing in the prior art, It leads to problems such as high cost, low efficiency and high risk of artificial ice observation

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  • A real-time mapping method for transmission line icing based on plateau micro-topography
  • A real-time mapping method for transmission line icing based on plateau micro-topography
  • A real-time mapping method for transmission line icing based on plateau micro-topography

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Embodiment Construction

[0039] A real-time mapping method for transmission line icing aimed at plateau micro-topography, which includes the following steps:

[0040] Step 1. Construct the K.J model: use real-time meteorological parameters such as heavy precipitation, air liquid water content, horizontal wind speed of the vertical wire, and air temperature to calculate the real-time ice thickness value of each station in the space.

[0041] First, determine the icing conditions and start the K.J. model: before applying the K.J. model to calculate the ice thickness, the meteorological data need to be processed, and the icing process can be identified through the meteorological condition indicators. The correct calculation of the maximum ice thickness in the icing process must be based on the correct identification of the icing process. Since there is no icing observation, it is necessary to find out all icing processes through comprehensive analysis of meteorological conditions, and effectively identif...

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Abstract

The invention discloses a power transmission line icing real-time drawing method for a plateau micro-terrain. The method comprises the steps of step 1, constructing a K.J model and calculating a real-time ice thickness value of each spatial site by utilizing real-time meteorological parameters such as heavy rainfall, air liquid water content, a horizontal wind speed of a vertical lead wire and an air temperature value; step 2, calculating standard ice thickness of each spatial site; step 3, performing spatial interpolation for a Kriging model to obtain a Kriging interpolation ice zone distribution diagram A; step 4, according to the conditions of historical ice observation data, terrain factors and meteorological factors, performing zone division of an ice chart in a multi-year return period; step 5, establishing altitude and ice thickness distribution models of different similar icing zones; step 6, obtaining an ice zone distribution diagram B; and step 7, making a research on a real-time ice zone distribution model. Therefore, the problems of high cost, low efficiency, high risk and the like for manual ice observation caused by the defect of non full consideration of a power transmission line icing research model in real-time meteorology and plateau micro-terrain in the prior art are solved.

Description

Technical field: [0001] The invention belongs to the drawing technology of transmission line risk map, in particular to a real-time drawing method of transmission line icing aiming at plateau micro-topography. Background technique: [0002] Transmission line icing disasters are an important subject of transmission line risk research at home and abroad. Every year, there are many accidents such as downed poles, broken wires and insulator flashovers caused by icing of transmission lines all over the world. In my country, accidents caused by icing of transmission lines Accidents such as ice flash tripping, dancing wires, and broken towers occurred frequently. At the beginning of 2008, there was a large area of ​​snowfall in southern my country, and the icing caused serious damage to the transmission lines. As of 18:00 on January 31, the low temperature since January 10 Rain, snow and freezing disasters have caused varying degrees of damage in 19 provinces (autonomous regions and ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06Q50/06
CPCG06F30/367G06Q50/06
Inventor 李昊王俊稞李锐海曾勇刚曹双和任曦犹珀玉郑兴文李梦姣
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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