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Method for dynamically predicting electrical safety distance between transmission line wire and tree

An electrical safety distance, transmission line technology, applied in prediction, electrical digital data processing, character and pattern recognition, etc. Effect

Pending Publication Date: 2020-04-28
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the trend of "drone inspection as the mainstay and manual inspection as the supplement" for the inspection of transmission lines, the risk of safe operation is relatively high

Method used

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  • Method for dynamically predicting electrical safety distance between transmission line wire and tree
  • Method for dynamically predicting electrical safety distance between transmission line wire and tree
  • Method for dynamically predicting electrical safety distance between transmission line wire and tree

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Embodiment Construction

[0034] The technical solutions of the present invention will be described below in conjunction with the accompanying drawings and implementation examples, but the content of this part of the description is to further illustrate the present invention, rather than limit the claims of the present invention.

[0035] Such as figure 1 Shown, the present invention provides a kind of electrical safety distance dynamic prediction method between transmission line conductor and tree, comprises steps:

[0036] S110: Obtain the specific load of the transmission line conductor and the span, and calculate the stress of the observed vertical arc of the conductor of the transmission line according to the actual sag and specific load of the conductor of the transmission line.

[0037] According to the engineering data, the representative stress, specific load and span of the span where the span is located at different temperatures can be directly found out, and the sag can be directly calculat...

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Abstract

The invention provides a method for dynamically predicting an electrical safety distance between a power transmission line wire and a tree. A clearance distance between a conductor sag point and a tree in a prediction state is calculated and is compared with a minimum electrical safety distance between a conductor and the tree specified in transmission line design specifications, and safety of a transmission line is monitored. Through the method, the unmanned aerial vehicle power transmission line channel inspection technology is perfected, and the problem that power transmission line channelmanagement is out of control in the unmanned aerial vehicle inspection period is solved; and meanwhile, the defect of conventional prediction of the dynamic safety distance between the wire and the tree is overcome, the prediction accuracy is improved by introducing an arc suspension chain model based on the temperature of the wire and the linkage effect of the seasonal growth change trend of thetree, and the operation safety and reliability of a power transmission line are enhanced.

Description

technical field [0001] The invention relates to the technical field of electrical safety, in particular to a method for dynamically predicting the electrical safety distance between a power transmission line conductor and a tree. Background technique [0002] Transmission line channel UAV inspection technology has achieved certain results in the application of power grids, but it is limited to three-dimensional modeling of channels and distance measurement between obstacles and wires. Due to reasons such as operation and maintenance costs, aviation control, and weather, unmanned Machine channel inspection 2-3 times / year. Due to many factors such as ambient temperature, line transmission load, and tree growth changes, the transmission line channel management is out of control during the drone inspection cycle. With the development of the trend of "drone inspection as the mainstay and manual inspection as the supplement" for the inspection of transmission lines, the risk of s...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F119/08G06F119/14G06K9/00G06T7/70G06Q10/04G06Q50/06
CPCG06T7/70G06Q10/04G06Q50/06G06V20/13
Inventor 罗传仙龚浩江翼吴念别士光王乐希柯贤彬许晓路周正钦倪辉周文邓伟白波潘晓敏
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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