Micrometeorological observation point layout method for wind disaster monitoring of transmission lines with complex terrain

A technology for complex terrain and transmission lines, applied in the field of micro-meteorological observation, can solve problems such as hidden dangers of transmission line safety, and achieve the effects of reducing workload, improving applicability and scalability, and improving work efficiency of point layout.

Active Publication Date: 2021-06-01
NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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Problems solved by technology

[0006] In order to solve the hidden dangers caused by the instantaneous wind speed in the power industry to the safety of transmission lines, the purpose of the present invention is to provide a micro-meteorological observation point layout method suitable for wind disaster monitoring of transmission lines with complex terrain

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  • Micrometeorological observation point layout method for wind disaster monitoring of transmission lines with complex terrain
  • Micrometeorological observation point layout method for wind disaster monitoring of transmission lines with complex terrain
  • Micrometeorological observation point layout method for wind disaster monitoring of transmission lines with complex terrain

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Embodiment Construction

[0024] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0025] A micro-meteorological observation point layout method suitable for wind disaster monitoring of transmission lines with complex terrain, comprising the following steps:

[0026] 1. Layout plan

[0027] In order to achieve scientific and reasonable early warning of wind field distribution in high-precision complex terrain areas, first consult the routine monitoring data of meteorological stations in the area, and obtain the latest global analysis data (Final Operational Global) provided by the National Centers for Environmental Prediction (NCEP). Analysis (FNL for short, this data has higher temporal and spatial resolution than the reanalysis data) is used as the initial field of the numerical model simulation, using the WRF model to simulate the distribution of the near-surface wind field in the study area, and output the ...

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Abstract

The invention relates to a method for arranging micro-meteorological observation points suitable for wind disaster monitoring of transmission lines with complex terrain. Based on the statistical analysis of historical disaster data, this method proposes a rule-based spatial overlay method, integrates the wind field simulation at different heights in the mesoscale weather forecast model and the spatial analysis method of the geographic information system, and realizes the selection of micro-meteorological observation sites for transmission lines in the region. Point layout observation and model simulation can dynamically grasp the distribution of wind fields at different heights in the region in real time, monitor the distribution of wind disasters at transmission line tower stations, provide technical support for ensuring safe operation of electric power, and form a complete set of indoor comprehensive simulation analysis and field practice Site selection technical process combined with survey. It effectively solves the problem of power outage in the tower station after the transmission line in the unpredictable area is hit by a wind disaster. The invention has a novel scheme, strong representativeness of point layout results, can provide technical support for the layout of a power transmission line gale meteorological disaster monitoring network, and is easy to popularize and implement.

Description

technical field [0001] The invention relates to the field of micro-meteorological observation. Specifically, it refers to a micro-meteorological observation point layout method suitable for wind disaster monitoring of transmission lines with complex terrain. This method proposes a spatial superposition based on complex terrain tower stations, which can quickly select the most representative transmission line tower stations under complex terrain conditions as wind field monitoring points from many transmission line tower stations, which is convenient for micro-meteorological Observation instruments are installed to provide early warning for the safe operation of transmission lines. Background technique [0002] The wind field of mountainous terrain is different from the wind field of flat landform conditions. The complex terrain of mountainous areas will significantly change the distribution of near-surface flow wind speed in the vertical direction and the turbulence structu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/18G06F113/04
CPCG06F30/18
Inventor 陈昊孟宪红王婵吕世华奥银焕
Owner NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS
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