Line wind resistance evaluation method, device and storage medium

A line and performance technology, applied in the field of line wind resistance performance evaluation method, device and storage medium, can solve the problems of weak wind resistance ability of old lines, low wind speed value, insufficient consideration of wind load calculation coefficient, etc. Windproof reinforcement and renovation costs, improve efficiency and accuracy, and achieve the effect of differentiated fortification requirements

Inactive Publication Date: 2019-11-19
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Line wind resistance evaluation method, device and storage medium
  • Line wind resistance evaluation method, device and storage medium
  • Line wind resistance evaluation method, device and storage medium

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Embodiment 1

[0046] See figure 1 , Is a schematic flow chart of a method for evaluating wind resistance of a line according to the first embodiment of the present invention. The method for evaluating wind resistance of a line provided by the first embodiment of the present invention includes steps S101 to S104.

[0047] S101. Calculate the load factor according to the pre-collected line design data.

[0048] In an optional embodiment, the load factor is calculated according to formula (1):

[0049]

[0050] Among them, γ is the load factor, Q is the safety factor adopted in the line design code, F wind-load Is the wind load calculated based on the route design wind speed and route design code, F jz As the reference wind load.

[0051] It should be noted that the wind resistance of the present invention refers to the actual withstand wind speed of the line, that is, the wind speed at which the line tower is damaged, which is different from the designed wind speed. The line design data may be the ...

Embodiment 2

[0080] See figure 2 , Is a schematic structural diagram of a device for evaluating wind resistance performance of a line provided in the second embodiment of the present invention, including:

[0081] The load factor calculation module 201 is used to calculate the load factor according to the pre-collected line design data;

[0082] The classification module 202 is configured to classify the wind resistance capability of the line according to the load factor to obtain a list of threshold levels;

[0083] The line load factor calculation module 203 is configured to calculate the line load factor of the line, and query the threshold level list according to the line load factor to obtain the wind resistance evaluation level corresponding to the line load factor;

[0084] The evaluation module 204 is configured to compare the evaluation level of the wind resistance capability with the preset wind resistance standard of the line, and evaluate the wind resistance of the line according to t...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06
Inventor 黄增浩吴新桥朱登杰张志强孟晓波廖永力龚博王俊稞张贵峰田志仁冯瑞发何锦强
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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