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Active anti-galloping method and anti-galloping device for overhead power transmission line

A technology for overhead transmission lines and anti-dancing devices, applied in the field of electric power, can solve problems such as no practical and effective solutions for anti-dancing, achieve the effect of avoiding economic losses and social impacts, and ensuring safe and stable operation

Active Publication Date: 2014-04-09
MAINTENANCE BRANCH STATE GRID LIAONING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this program can only monitor parameters such as galloping frequency, amplitude, and half-wave number.
[0005] Therefore, there is currently no practical and effective solution for anti-dancing

Method used

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  • Active anti-galloping method and anti-galloping device for overhead power transmission line
  • Active anti-galloping method and anti-galloping device for overhead power transmission line
  • Active anti-galloping method and anti-galloping device for overhead power transmission line

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the claims of the present invention.

[0030] The embodiment of the present invention firstly provides an active dance preventer for overhead power transmission lines. By installing an active dance preventer with a built-in acceleration sensor and an actuator on the conductor, the galloping acceleration of the conductor is monitored, and the center of gravity of the...

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Abstract

The invention discloses an active anti-galloping method and an anti-galloping device for an overhead power transmission line. The active anti-galloping device comprises a fixed support, a monitoring and controlling mechanism and an actuating mechanism, wherein the fixed support is installed on a wire of the overhead power transmission line; the monitoring and controlling mechanism and the actuating mechanism are arranged on the fixed support; the monitoring and controlling mechanism is used for monitoring the wire galloping acceleration; the motion of the actuating mechanism is controlled according to the galloping acceleration of the fixed support; the actuating mechanism comprises a heavy hammer capable of moving up and down along the fixed support; the actuating mechanism receives the instructions of the monitoring and controlling mechanism to control the heavy hammer to move up and down along the fixed support, so as to offset the force generated by reverse motion of the heavy hamper and the wire galloping force.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to an active dance prevention device and an active dance prevention method for overhead power transmission lines. Background technique [0002] Galloping refers to the self-excited vibration of low frequency (0.1Hz~3Hz) and large amplitude (up to 10m or more) generated by the wire. Its formation mainly depends on three factors, namely, ice coating, wind excitation, line structure and parameters. . The harm caused by galloping is multifaceted. In the light ones, flash welding and tripping occur. In severe cases, hardware and insulators are damaged, wires are broken, wires are broken, tower bolts are loose, and towers are even collapsed, leading to major power grid accidents. [0003] When the transmission line is in the meteorological condition that is prone to galloping, it is very easy to form one-sided ice coating on the surface of the conductor, so that the cross-section...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G7/14
Inventor 周培忠陈学中王启源寇祖辽李红旗陈瑞国杨春华姜辉曹向勇孙艳玢解玉文
Owner MAINTENANCE BRANCH STATE GRID LIAONING ELECTRIC POWER
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