Optical fiber-based power transmission conductor aeolian vibration monitoring digital sensor and monitoring method

Abstract

The invention relates to an optical fiber-based power transmission line aeolian vibration monitoring digital sensor which comprises an MCU (microprogrammed control unit) computing control unit, wherein the MCU computing control unit is respectively connected with a power supply module and a light sensation module by wires and is sequentially connected with a Zigbee communication module and an upper computer by a Zigbee network. The invention also discloses a monitoring method of the sensor; the method comprises the steps of mounting the power transmission line aeolian vibration monitoring digital sensor on a power transmission line; initializing by the MCU computing control unit, and sequentially performing data acquisition and data processing and outputting an optical fiber phase change electrical signal by the light sensation module; transmitting the optical fiber phase change electrical signal to the MCU computing control unit to obtain an amplitude value and frequency; sending the amplitude value and the frequency to the upper computer by the Zigbee wireless communication module. The sensor disclosed by the invention solves the problems that the existing cantilever beam type aeolian vibration monitoring sensor is poor in frequency response effect and is relatively sensitive to temperature.

Description

Technical field: [0001] The invention belongs to the technical field of on-line monitoring equipment for power transmission lines, and specifically relates to a digital sensor for monitoring breeze vibration of a power transmission wire based on an optical fiber. The invention also relates to a monitoring method for the digital sensor for monitoring breeze vibration of a power transmission wire. Background technique: [0002] The wind vibration detection standard stipulated by the Institute of Electrical and Electronics Engineers (IEEE) adopts the bending amplitude method, and the current "Technical Guidelines for On-line Breeze Vibration Monitoring System of Overhead Transmission Lines" in China also adopts this method for monitoring. The vibrometers used in this detection method all use cantilever beam sensors, mainly to measure the bending range of the transmission wire. Generally, the cantilever beam sensor is installed at the 89mm outlet of the wire clip to monitor the d...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a digital sensor for wind vibration monitoring of power transmission wires based on optical fiber, which solves the problems of poor frequency response and sensitivity to temperature in the existing cantilever beam type wind vibration monitoring sensors

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