Power grid wind damage early warning system based on micro-landform wind field distribution and typhoon superimposed effect

Abstract

The invention relates to a power grid wind damage early warning system based on micro-landform wind field distribution and typhoon superimposed effect, belonging to the field of prevention, reduction and control of natural disaster for a power grid. The power grid wind damage early warning system comprises a weather data acquisition sub-system, a wind damage and wind speed forecasting computer sub-system, a power grid early warning information processing computer sub-system, a power grid wind damage estimation processing computer sub-system and an information issuing sub-system, and each above sub-system is orderly in signal electrical connections. The power grid wind damage early warning system is capable of acquiring timed weather data of meteorological stations in a region covered by the power grid, performing standard pretreatment, then, establishing a gale statistical diagnosis model and a numerical model by means of theory modeling and numerical simulation, analyzing influence degree of the gale on main lines, iron towers and transformer substations, and issuing a related gale early warning information report based on related rules for gale early warning grades, wherein the related rules are specified by the Meteorological Office. And the power grid wind damage early warning system has the advantages of high precision, excellent accuracy, quick real-time response speed and the like, and can provide decision support for gale damage prevention and power grid planning.

Description

technical field [0001] The invention relates to a wind disaster early warning system for a power grid based on micro-topographic wind field distribution and typhoon superposition effect, and belongs to the field of natural disaster prevention and reduction for power grids. Background technique [0002] my country is one of the countries most seriously affected by tropical cyclones in the world. On average, 7-8 tropical cyclones make landfall along the coast of my country every year, with 12 in the most years and 3 in the least. Although some tropical cyclones do not make landfall, they still have a great impact on the coast. Our country has a long coastline, from Hainan to Liaoning, the vast coastal areas will be affected by landfalling tropical cyclones. In particular, Fujian, Guangdong and other provinces are the hardest-hit areas affected by landfalling tropical cyclones. The strong wind and heavy rain brought by the landfalling tropical cyclone have caused heavy lo...

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Problems solved by technology

[0005] However, the prior art lacks the ability to overlap the local wind distribution with high spatio-temporal resolution and the power structure distribution in the power grid coverage area to obtain the wind speed forecast at each power structure, so as to ensure the safety of power grid operation, improve the forecasting ability of strong wind disasters and disasters. Power Grid Wind Disaster Early Warning System for Emergency Response Capability

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