Detection method and device for wind deflection angle of suspension type composite insulator chain

A technology of composite insulators and insulator strings, which is applied in the field of power transmission, and can solve the problems of low calculation accuracy of the wind deflection angle of suspended composite insulator strings, and is easily affected by external environmental parameters.

Active Publication Date: 2013-04-24
DATONG POWER SUPPLY BRANCH SHANXI ELECTRIC POWERCO +1
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Problems solved by technology

[0004] In view of the above prior art, the purpose of the present invention is to provide a detection technology for the windage angle of suspended composite insulator strings, so as to accurately determine the windage angle, and solve the problem of low calculation accuracy of the windage angle of existing suspended composite insulator strings. Problems that are susceptible to external environmental parameters

Method used

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  • Detection method and device for wind deflection angle of suspension type composite insulator chain
  • Detection method and device for wind deflection angle of suspension type composite insulator chain
  • Detection method and device for wind deflection angle of suspension type composite insulator chain

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Embodiment

[0118] In a specific embodiment, the wind deflection angle detection method of the suspended composite insulator string of the present invention is used to process the video image of the FXBW4-110 / 70 type suspended composite insulator string collected in real time by the tower, as follows Figure 6-10 shows the result of processing one of the frame images, Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 They are the original image, the result image processed by the filtering step, the result image processed by the grayscale step, the result image processed by the inter-frame difference step, and the result image processed by the edge feature matching step. According to the detection method of the windage angle of the suspension composite insulator string, the windage angle calculated from the image is 5.80°, while the actual measurement result is 5.74°, and the relative error is only 1%. It can be seen from the above processing results that the detection method ...

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Abstract

The invention discloses a detection method and a device for a wind deflection angle of a suspension type composite insulator chain. By means of the detection method and the device for the wind deflection angle of the suspension type composite insulator chain, an image of the suspension type composite insulator chain is analyzed and tracked, the wind deflection angle is obtained, and problems that the existing wind deflection angle of the suspension type composite insulator chain is low in computing accuracy and prone to influence of parameters of an external environment are solved. Besides, the technique is simple in principle, intuitive, feasible, reliable in detection and capable of making beneficial attempt of measuring the wind deflection angle of the insulator chain from the point of feature matching, so a novel detecting technique is supplied for safe and stable operation of an electric transmission line.

Description

technical field [0001] The invention relates to the field of power transmission, in particular to a method and a device for detecting the wind deflection angle of a suspended composite insulator. Background technique [0002] Throughout the year, insulator strings are exposed to the air, directly affected by strong winds, icing, sudden cold and sudden heat and other weather changes, and also affected by harsh environmental conditions such as strong mechanical forces and strong electromagnetic fields. Wire arc burns, phase-to-phase flashover, metal fixture damage, and serious accidents such as wind deflection tripping, power outages, downed towers, broken strands, broken wires, etc., have a serious impact on the safe and stable operation of the system. Although the frequency of wind deflection trips is not very high, compared with lightning strikes and operation shock trips, most wind deflection trips occur under the working voltage, and the reclosing rate is low (about 25%),...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/26
Inventor 逯海军任远王启银王晓强薛辉
Owner DATONG POWER SUPPLY BRANCH SHANXI ELECTRIC POWERCO
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