Spatial valuing method of design air speed of overhead transmission line of coastal region

Abstract

The invention provides a spatial valuing method of design air speed of an overhead transmission line of a coastal region. The method comprises the steps of 1) collecting, reviewing and correcting materials; 2) analyzing tropical cyclone characteristics of the coastal region; 3) calculating the theoretic long-term air speed through meteorological observatory; 4) performing supplementing calculation through an automatic meteorological observatory; 5) performing spatial interpolation and optimizing of the designed air speed. According to the method, the data of an ocean station and the automatic meteorological observatory are fully utilized, the data of the ocean station are introduced to clearly reflect the trend of the air speed changing from the coastal region to the inland; the data of the automatic meteorological observatory are introduced to provide more design air speed spatial interpolation points, and therefore the representation of the basic meteorological data of the transmission line project can be improved; in addition, the reasonability and stability of the spatial distribution of the design air speed can be ensured by the optimal space interpolation method. The spatial valuing method of design air speed of the overhead transmission line of the coastal region is accurate in air speed calculation result.

Description

technical field [0001] The invention belongs to the technical field of transmission line engineering design and transformation, and in particular relates to a spatial value acquisition method for design wind speed of overhead transmission lines in coastal areas. Background technique [0002] The southeastern coastal areas of my country are located on the main path of tropical cyclones in the Northwest Pacific Ocean and the South China Sea. They are severely attacked by tropical cyclones, and the situation of disaster prevention and mitigation of power transmission lines in coastal areas is severe. [0003] The design wind speed is a key parameter in the design of overhead transmission lines, and the value of the design wind speed is directly related to the economy, safety and applicability of the line project. At present, the design wind speed of overhead transmission lines is mainly determined based on the wind speed data of long-term meteorological stations near the line c...

AI Technical Summary

Problems solved by technology

The present invention collects and sorts out the wind speed data of automatic weather stations and marine stations widely distributed in coastal areas by counting the landfall frequency and intensity characteristics of tropical cyclones in coastal areas, and conducts correlation analysis with wind speed data of long-term meteorological stations to solve the problem caused by the sparse distribution of long-term meteorological stations. The problem of insufficient representation of the design wind speed spatial distribution

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