Insulator deflection angle measuring method, device and system
A measurement method and technology of insulators, applied in the field of power grid, can solve the problems of insulator declination, measurement, and difficulty in long-term operation.
Active Publication Date: 2021-03-12
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology
Since the video monitoring device requires continuous power supply, it is difficult to operate for a long time in harsh environments. In actual use, it is often impossible to continuously measure the deflection angle of the insulator due to power failure.
Therefore, the traditional method of measuring the deflection angle of insulators has the disadvantage of low reliability
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[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.
[0044] It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. ...
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The invention relates to an insulator deflection angle measuring method, device and system. The method comprises the following steps: acquiring a scattered light signal acquired from a sensing opticalfiber; arranging the sensing optical fiber in an insulator core rod; analyzing and processing the scattered light signal to obtain incident light frequency data and scattered light frequency data; and substituting the incident light frequency data and the scattered light frequency data into an insulator deflection angle calculation formula, and calculating to obtain an insulator deflection angle,wherein the insulator deflection angle calculation formula is derived according to the stress-strain relationship of an insulator core rod, and represents the corresponding relationship among the incident light frequency, the scattered light frequency and the insulator deflection angle. According to the insulator deflection angle measuring method, the measurement of the insulator deflection anglecan be completed only by implanting the sensing optical fiber into the insulator core rod without exposing any active device in a severe environment, and the insulator deflection angle measurement method is not easily influenced by external interference and is high in reliability.
Description
technical field [0001] The present application relates to the technical field of power grids, in particular to a method, device and system for measuring insulator deflection angles. Background technique [0002] With the rapid development of my country's electric power engineering construction, a large number of transmission lines must pass through areas with harsh climates. It is one of the important tasks of the power grid system to ensure the safe operation of transmission lines in natural environments such as strong winds and ice disasters. The insulator deflection angle refers to the angle formed by the grid line hanging insulator string and the vertical direction caused by external disturbance. Taking the strong wind weather as an example, under the strong wind, the hanging insulator will have wind deflection phenomenon. If the deflection angle is too large, the transmission line will break down and discharge and trip, which will affect the safe operation of the power ...
Claims
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IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 杨兴柯磊陈城周伟才刘丙财裴慧坤魏前虎林国安胡燮林华盛王晨刘如海焦康许海源蔡祖建黄锦龙白岩石舒铭杰王泽林
Owner SHENZHEN POWER SUPPLY BUREAU