Overhead transmission line operation state comprehensive evaluation method
A technology for overhead transmission lines and transmission lines, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems that cannot reflect the real operation status of transmission lines, etc., and achieve the effect of making up for the long time period
Active Publication Date: 2020-09-08
海南电网有限责任公司文昌供电局
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Problems solved by technology
The transmission line inspection data is usually updated once every few months, that is, the inspection state quantity is static within an inspection cycle. As time goes by, the static inspection data cannot reflect the real operating status of the transmission line.
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[0050] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and examples.
[0051] figure 1 It reflects the specific process of the comprehensive evaluation method for the operation status of overhead transmission lines, including the following steps:
[0052] (1) Obtain the time t of a patrol inspection on the transmission line to be evaluated 1 , the inspection time interval T and the evaluation result F of the transmission line status based on the inspection data;
[0053] (2) Get the current time t 2 Transmission line online monitoring data, transmission line online monitoring data include wind speed, temperature, humidity, line galloping amplitude, galloping frequency, inclination of tower along the line, lateral inclination, and abnormal alarm times;
[0054]Construct a transmission line status evaluation index system based on online monitoring data, including four first-level indica...
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The invention provides an overhead power transmission line operation state comprehensive evaluation method which comprises the following steps: firstly, acquiring power transmission line inspection data; secondly, acquiring online monitoring data of the power transmission line, and constructing a state evaluation index system; further, calculating a power transmission line state evaluation index weight and a state evaluation result based on the online monitoring data; and finally, constructing a model of the confidence coefficient of the power transmission line state evaluation result changingwith time based on the inspection data, and calculating an overhead power transmission line operation state comprehensive evaluation value comprehensively considering the inspection data and the online monitoring data. According to the comprehensive evaluation method for the running state of the power transmission line, the routing inspection data and the online monitoring data of the power transmission line can be comprehensively utilized, the difference of the aging characteristics of different data is considered, comprehensive and effective evaluation of the running state of the power transmission line is achieved, and an effective basis is provided for state maintenance.
Description
technical field [0001] The invention relates to a method for evaluating the state of an overhead transmission line in a power system, in particular to a method for comprehensively evaluating the operating state of an overhead transmission line. Background technique [0002] With the continuous development of my country's power grid construction and power market, power grid companies and power users have put forward higher requirements for the safety and reliability of power grids. The overhead transmission line is an important part of the power system. Its operating environment is complex and its distribution range is wide. Inspection and maintenance are difficult and costly. Failures will seriously affect the safety and stability of the power grid. Therefore, it is necessary to effectively evaluate the operating status of overhead transmission lines, find defects and potential safety hazards in time, provide decision-making basis for condition-based maintenance of transmiss...
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IPC IPC(8): G06Q10/06G06Q10/00G06Q50/06
CPCG06Q10/06393G06Q10/067G06Q10/20G06Q50/06
Inventor 叶保璇王康坚余盛达郑在涛韩旭君王禄庆林渝淇黄强
Owner 海南电网有限责任公司文昌供电局