Multimethod-fused downscaling analysis system and method for meteorological elements of power transmission lines

Abstract

The invention relates to a multimethod-fused downscaling analysis system and method for meteorological elements of power transmission lines. The multimethod-fused downscaling analysis system comprisesa comprehensive forecasting device, a terrain-complexity closest-grid-point forecasting device and a dynamic integration device, wherein the comprehensive forecasting device is used for calculating acomprehensive forecasting value and sending the forecasting value to a dynamic integration module; the terrain-complexity closest-grid-point forecasting device is used for calculating a forecasting value by a terrain-complexity closest method and sending the forecasting value to the dynamic integration module; the dynamic integration device is used for receiving the forecasting values sent by thecomprehensive forecasting device and the terrain-complexity closest-grid-point forecasting device and calculating a dynamic integration forecasting value. The multimethod-fused downscaling analysis system and method have the beneficial effects that starting from the characteristics of a gridding numerical forecasting product, the meteorological elements of a small area or certain specified pointare accurately predicted by the downscaling technology, so that high-definition weather forecasting information of the power transmission lines can be obtained.

Description

technical field [0001] The invention relates to the intersecting field of electric power production and meteorological prediction, in particular to a system and method for downscaling analysis of meteorological elements of transmission lines integrated with multiple methods. Background technique [0002] The risk after the transmission line is put into operation is mainly affected by the external meteorological environment, especially the electrical or physical failure caused by the impact of meteorological disasters. Meteorological elements such as temperature, humidity, wind speed, and wind direction based on the numerical forecast model are the main parameters for analyzing meteorological disasters in transmission lines. [0003] Although the numerical prediction model can better predict the characteristics of atmospheric circulation in different vertical layers and scales such as the upper atmosphere, boundary layer, and near-surface layer, and output gridded prediction ...

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Problems solved by technology

[0006] The above method greatly promotes the refined analysis and prediction of numerical model products to the target point, but because it is mostly based on mathematical statistics, the role of terrain cannot be considered in the analysis process, and there is no guarantee which method will always have the best effect Good, that is, the application of the integrated analysis technology based on the dynamic fusion of multiple downscaling methods in the field of refined forecasting and analysis of transmission lines has not been seen

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