System and method for downscaling analysis of transmission line meteorological elements based on multi-method fusion

Abstract

The invention relates to a system and method for downscaling analysis of meteorological elements of power transmission lines with multi-method integration. The device includes: a comprehensive forecasting device for calculating comprehensive forecast values ​​and sending the forecast values ​​to a dynamic integration module; terrain complexity The closest grid point forecasting device is used to calculate the forecast value by the terrain complexity closest method, and send the forecast value to the dynamic integration module; the dynamic integration device is used to receive the comprehensive forecasting device and the terrain complexity It is closest to the forecast value sent by the grid point forecasting device, and calculates the dynamic integrated forecast value. The multi-method fusion meteorological elements downscaling analysis system and method of transmission lines of the present invention start with the gridded numerical forecast product features, and make accurate predictions of meteorological elements in a small area or a certain designated point through downscaling technology, which is Access high-resolution weather forecast information for transmission lines.

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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