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Method and system for judging typical bealock microtopography region of power grid waving

A micro-topography, typical technology, applied in the direction of information technology support systems, instruments, data processing applications, etc., can solve the problems of unpredictable and early warning of galloping in micro-topography areas, so as to improve the level of galloping prediction and early warning, ensure safe and stable operation, and improve disposal effect of effect

Inactive Publication Date: 2020-03-17
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology

[0005] The invention provides a method and system for identifying micro-topographic areas of typical passes in grid galloping, which is used to solve the technical problem that galloping in micro-topographic areas cannot be predicted and early-warned

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  • Method and system for judging typical bealock microtopography region of power grid waving
  • Method and system for judging typical bealock microtopography region of power grid waving
  • Method and system for judging typical bealock microtopography region of power grid waving

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Embodiment Construction

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0033] see figure 1 , the identification method and system of the typical pass micro-topographic area of ​​grid galloping according to the present invention, including:

[0034] S1: Obtain the meteorological elements (in this embodiment, including wind speed, wind direction, daily average relative humidity and daily average minimum temperature) of weather stations over the years (in this embodiment, the calendar years are the past 10 years), and preferably establish a weather station database;

[0035] S2: Divide the target area to be analyzed into grids, and the minimum grid point precision is 30m×30m.

[0036] S3: Obtain the digital elevation model (DEM, Digital Elevation Model) of the target area, and calculate the terrain relief of the grid (g...

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Abstract

The invention discloses a method and a system for judging a typical bealock microtopographic region of power grid waving. The method comprises the following steps: acquiring meteorological elements ofmeteorological stations over the years; dividing a target area to be analyzed into grids; calculating the topographic relief of the grids in the target area; forming a set by grids of which the topographic relief degree is greater than a relief degree threshold value; calculating whether the relationship between each grid in the set and four surrounding grids satisfies a typical bealock microtopography area model, and if so, determining that the grid is a typical bealock microtopography area; interpolating the meteorological elements of the meteorological station over the years into the gridsof the target area, and judging whether the meteorological elements of each grid over the years are dancing days or not; when the number of dancing days of the grid is greater than a dancing day threshold, judging the grid as a dancing grid point; and taking the grid conforming to the typical bealock microtopography area and the waving grid points as the typical bealock microtopography area. According to the method, the typical bealock microtopography area of power grid waving can be judged.

Description

technical field [0001] The invention relates to the technical field of power grid protection, and in particular to a method and system for identifying micro-topographic areas of typical passes in grid galloping. Background technique [0002] Galloping is a low-frequency, large-amplitude vibration phenomenon that occurs on uneven ice-coated transmission lines under strong wind conditions, which can easily cause line tripping and hardware damage, or even break the tower. In the past, galloping mostly occurred in open plains, but in recent years, in typical micro-topographic areas such as passes, the wind speed has increased due to the influence of terrain, and route galloping has appeared. [0003] The so-called pass micro-topography refers to the narrow place between two mountains within tens of meters, that is, the saddle-shaped depression between two opposite higher ridges. In winter, when the cold air goes south and encounters a north-south pass, the wind speed increases ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/067G06Q50/06Y02A90/10Y04S10/50
Inventor 怀晓伟杨莉郭俊徐勋建
Owner STATE GRID HUNAN ELECTRIC POWER
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