Line wind resistance evaluation method, device and storage medium

Abstract

The invention discloses a line wind resistance evaluation method, a device and a storage medium. The method comprises the steps: calculating a load factor according to pre-collected line design data;grading the wind resistance of the line according to the load factor to obtain a threshold level list; calculating a line load factor of the line, and querying the threshold level list according to the line load factor to obtain a wind resistance evaluation level corresponding to the line load factor; and comparing the wind resistance evaluation grade with a preset wind resistance standard of theline, and evaluating the wind resistance of the line according to a comparison result, thereby providing an evaluation method for quickly quantifying and grading the wind resistance of the old line inthe power system, and effectively improving the efficiency and accuracy of line evaluation.

Description

Technical field [0001] The invention relates to the technical field of wind resistance performance of power systems, and in particular to a method, device and storage medium for evaluating the wind resistance performance of a line. Background technique [0002] China’s electric power industry design standards have been in the process of continuous improvement and perfection, including "Overhead Transmission Line Design Technical Regulations" (SDJ-79, promulgated and implemented in 1979, hereinafter referred to as "79 Regulations"), "Overhead Transmission Line Tower Structure" "Design Technical Regulations" (SDGJ94-90, promulgated and implemented in 1990, hereinafter referred to as "90 Regulations"), "110-500kV Overhead Transmission Line Design Technical Regulations" (DL / T5092-1999, promulgated and implemented in 1999, hereinafter referred to as "99 Regulations”), “110kV~750kV Overhead Transmission Line Design Code” (GB50545-2010, promulgated and implemented in 2010, hereinafter r...

AI Technical Summary

Problems solved by technology

[0004] The lines designed using the design codes before the 18th code (79 codes, 90 codes, 99 codes, and 10 codes) are old lines. Due to the long design period of the old lines, they are limited by the economic conditions during the construction period. Generally, the design wind speed is taken as The value of the wind load is too low, and the wind load calculation coefficient is not fully considered. The wind load value is too small, which leads to the weak wind resistance of the old line, and accidents such as tower collapse are prone to occur in typhoon disasters.

Images