Lead aeolian vibration on-line monitoring device and monitoring method based on angle method

Abstract

The invention provides a lead aeolian vibration on-line monitoring device and monitoring method based on an angle method. The device comprises a housing and an angle sensor fixed to a to-be-detected lead. The angle sensor is xb away from the outlet of a lead wire clamp. The housing has a cavity inside, and a control module, a communication module and a power supply module are arranged in the cavity. The communication module and the power supply module are connected to the control module. The control module is connected to a calculating control module of the angle sensor. The angle sensor of the lead aeolian vibration on-line monitoring device directly measures the vibration angle of the to-be-detected lead in a to-be-measured position so that the vibration angle is obtained. Meanwhile, the angle sensor converts the vibration angle into relative amplitude, and transmits a relative amplitude value to the control module. The control module then conducts automatic calculation and obtains a bending strain value of the to-be-detected lead in the outlet of the lead wire clamp. The lead aeolian vibration on-line monitoring device can directly and accurately monitor the bending strain value of the to-be-detected lead, and provides a firm basis for assessment of the influence of aeolian vibration upon the fatigue damage of an overhead transmission line.

Description

technical field [0001] The invention relates to the field of on-line monitoring of overhead transmission lines, in particular to an on-line monitoring device and method for breeze vibration of wires based on an angle method. Background technique [0002] With the rapid development of modern technology and the accumulation of practical experience in power construction, people have learned that various types of conductor vibration can occur on transmission lines. According to the causes of conductor vibration and the form of conductor vibration, conductor vibration phenomena can be divided into There are several types: breeze vibration, sub-gap vibration, galloping, off-ice jumping, lateral impact, corona galloping, short-circuit vibration and turbulent vibration, etc. Among them, in the field of overhead transmission lines, the phenomenon of breeze vibration occurs most frequently, and the fatigue and fracture of wires caused by breeze vibration is a major threat to the safe ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of evaluating the impact of conductor breeze measurement on fatigue damage of overhead transmission lines, the dynamic bending strain of conductors is a main parameter, but various monitoring devices or monitoring methods in the prior art cannot directly measure the dynamic bending strain value of conductors , resulting in the inability to well monitor the influence of breeze vibration on overhead transmission lines online

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