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Overhead transmission line galloping monitoring method and apparatus

A technology for overhead transmission lines and monitoring points, which is applied in the field of gallop monitoring of overhead transmission lines and gallop monitoring of overhead transmission lines, can solve the problems of interphase flashover, damage to hardware, easy tripping again, and economic losses.

Active Publication Date: 2010-10-20
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large range of galloping, there is swing, and it lasts for a long time at a time, it is easy to cause phase-to-phase flashover, damage to hardware, cause line tripping and power failure, or cause serious accidents such as burning wires, pulling down pole towers, and wire breaks, resulting in major economic losses.
In many cases, due to the long duration of wire galloping, even if the reclosing is successful, it is easy to trip again and cause a short circuit. As a power transmission accident, it is a vicious accident

Method used

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  • Overhead transmission line galloping monitoring method and apparatus
  • Overhead transmission line galloping monitoring method and apparatus
  • Overhead transmission line galloping monitoring method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as image 3 As shown, the galloping monitoring device 101 of this embodiment includes: a high-voltage pumping inductance coil set on the wire 301, a power conditioning module, an acceleration sensor, a signal conditioning unit, a signal control and a wireless transceiver module. The high-voltage energy-pumping inductance coil obtains electric energy from the high-voltage line, and introduces the input interface of the power conditioning module through the power line; the power conditioning module converts the fluctuating voltage into a stable DC power supply signal conditioning module and signal control and wireless transceiver module; the signal conditioning module controls the acceleration The acceleration signal of the wire monitored and input by the sensor is filtered and amplified, and the processed standard acceleration voltage signal is sent to the input interface of the signal control and wireless transceiver module; the signal control and wireless transceiv...

Embodiment 2

[0030] Such as Figure 4 As shown, the dance monitoring device 101 of this embodiment includes: a solar device 401, a power conditioning module, an acceleration sensor, a signal conditioning module, a signal control and a wireless transceiver module. The solar device converts solar radiation energy into electrical energy, and introduces the input interface of the power conditioning module through the power line on the solar panel; the power conditioning module converts the fluctuating voltage into a stable DC power supply signal conditioning module and signal control and wireless transceiver module; The conditioning module filters and amplifies the acceleration signal input by the acceleration sensor, and sends the processed standard acceleration voltage signal to the input interface of the signal control and wireless transceiver module; the signal control and wireless transceiver module performs AD conversion on the input signal Send data directly to remote wireless transceiv...

Embodiment 3

[0038] The line galloping online monitoring system includes a data monitoring device, a base station and a monitoring support system. By installing galloping online monitoring devices on the conductors, the track, amplitude, frequency, etc. of conductor galloping on site can be collected; by installing comprehensive meteorological monitoring devices and load vibration sensors on the towers, on-site temperature, humidity, wind speed, wind direction, air pressure, and rainfall can be collected Parameters such as optical radiation and wire comprehensive load; the effective parameters are transmitted to the remote monitoring center through the GPRS / CDMA wireless communication network; the remote background software analysis system uses trend analysis technology, artificial intelligence, fuzzy judgment, iterative technology and other means to analyze The data and the inherent parameters of the tower are analyzed and processed, and the galloping condition of the transmission line and...

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Abstract

The invention provides an overhead transmission line vibration monitoring method, a device and a system therefore. The method comprises: processing online detection on the vibration acceleration speeds at a plurality of vibration detection points on an overhead transmission line; using each vibration detection point to wirelessly emit detected self vibration acceleration speed; using a remote antenna to receive the vibration acceleration speed data emitted wirelessly from each vibration detection point, and generating a vibration track of the line according to the received vibration acceleration speed data of different vibration detection points on one line. The invention can quantitatively monitor the track, amplitude and vibration order and the like for the vibration of overhead transmission lines, and realize online detection on the vibration of overhead transmission lines.

Description

technical field [0001] Invented the monitoring technology of overhead transmission lines in electric power systems, especially the galloping monitoring technology of overhead transmission lines, specifically a method and device for galloping monitoring of overhead transmission lines. Background technique [0002] In the prior art, the galloping of overhead transmission lines is the self-excited vibration of low frequency (0.1-3Hz) and large amplitude (up to 10m or more) generated by the wires. Its formation mainly depends on three factors, namely, icing, wind The excitation, structure and parameters of the circuit. 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 pron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02G08C17/02G01R31/00
Inventor 郭志广李翔李红旗秦小平裴冠荣张予于钦刚张倩
Owner CHINA ELECTRIC POWER RES INST
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