On-line monitoring device and method for high-voltage line breeze vibration based on vibration power generation

Abstract

The invention provides an on-line monitoring device and an on-line monitoring method for accurately measuring the breeze vibration of a high-tension line. The device consists of a rectangular metal shell and a vibration detection circuit which is arranged in the rectangular metal shell, wherein the vibration detection circuit comprises a vibration sensor circuit, a signal amplifying circuit, an analog / digital (A / D) conversion circuit, a data storage circuit, a clock circuit, a micro control unit (MCU), a wireless communication circuit and a micro vibration generator circuit; the micro vibration generator circuit supplies power to the vibration detection circuit; the sensor circuit timely acquires vibration data; the vibration data is subjected to signal amplification and A / D conversion and then sent to the MCU; after corresponding operation, the vibration data is wirelessly sent to a monitoring person and stored; if the vibration detection circuit detects that vibration amplitude or frequency is over-high and exceeds a preset threshold value, a corresponding signal is transmitted to the monitoring person for early warning; and the monitoring person can take remedial measures in advance according to specific situations to reduce loss. The invention is applicable to on-line monitoring of the high-tension line.

Description

technical field [0001] The invention relates to a monitoring device for accurately measuring the breeze vibration of a high-voltage line, which is characterized in that the monitoring device is suitable for a high-voltage transmission line. Background technique [0002] The phenomenon of wire vibration can be divided into several types according to the cause of wire vibration and the form of wire vibration. Among them, wire breeze vibration is the most common and frequent, which often leads to wire fatigue and broken strands. [0003] The breeze vibration of the overhead wire is when the stable wind speed of 0.5~10m / s (ie laminar wind) blows laterally to the wire, the up and down alternating vortex (ie Karman vortex street) is generated on the leeward side of the wire, causing the up and down alternating force Acting on the wire, causing the wire to vibrate vertically. When the frequency of the vortex is consistent with the natural frequency of the wire, a continuous vibrat...

AI Technical Summary

Problems solved by technology

[0016] As for the online monitoring device of high-voltage lines, the problem that is difficult to solve at present is the power supply problem of the online monitoring device. The general battery can only maintain the power supply of the monitoring device for a short period of time, and maintenance work such as battery replacement seriously affects the practicality of online monitoring. property, and the present invention should solve this problem well by utilizing the breeze vibration generator

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