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

An overhead transmission line and anti-dance device technology, which is applied in the field of overhead transmission lines, can solve the problems of complex galloping mechanism and large differences, and achieve the effect of avoiding inconvenient installation

Active Publication Date: 2010-10-13
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, due to the extremely complex mechanism of galloping, the results of theoretical calculations or experimental research are often very different from those on the spot.

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

[0025] The specific implementation manner of the present invention will be further described in detail below in conjunction with the drawings and specific examples.

[0026] The active dance preventer for overhead transmission lines of the present invention includes a fixing piece, a housing, an acceleration monitoring device, a control circuit and an anti-dancing executive mechanism. Fixed on the wire, the acceleration monitoring device can monitor the motion acceleration of wire galloping and output it to the control circuit, and the control circuit outputs a control signal according to the received acceleration value to control the action of the anti-dancing actuator to suppress the wire galloping.

[0027] combine figure 1 As shown, it is a structural block diagram of the control part of a specific embodiment of the active dance preventer for overhead transmission lines of the present invention. The control circuit includes a controller and a power drive circuit. The acce...

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PUM

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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 fixture, a shell, an acceleration monitoring device, a control circuit and an anti-galloping actuating mechanism, wherein the acceleration monitoring device and the control circuit are arranged in the shell; the fixture fixes the anti-galloping device to the wire; the acceleration monitoring device can monitor the movement acceleration for the galloping of the wire and output the movement acceleration to the control circuit; and the control circuit outputs a control signal to control the action of the anti-galloping actuating mechanism according to the received acceleration value so as to suppress the galloping of the wire.

Description

technical field [0001] The invention relates to an overhead power transmission line, in particular to an active dance prevention method and dance prevention device for an overhead power transmission line. Background technique [0002] Galloping is the self-excited vibration of low frequency (0.1~3Hz) 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-sectional shape of the conduct...

Claims

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Application Information

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IPC IPC(8): H02G7/14H02K7/116H02P6/08H02P8/00
Inventor 陈志高李红旗陈懿夫何红太裴冠荣王睿
Owner CHINA ELECTRIC POWER RES INST
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