Online monitoring system for deformation of transmission line tower material

Abstract

The invention discloses an online monitoring system for deformation of a transmission line tower material. The online monitoring system comprises a measurement and analysis module, a wind speed and direction sensor, a monitoring center and a plurality of wireless acceleration sensors arranged at different positions of a transmission tower. The wind speed and direction sensor, the monitoring centerand the plurality of wireless acceleration sensors are connected with the measurement and analysis module. The wireless acceleration sensors are installed at 15 key positions of the transmission tower, and are used to measure the vibration acceleration at these positions. The real-time monitoring of the deformation of the transmission line tower material is realized, guarantee is provided for thesafe operation of a transmission line, and the safety hazards of the operation of the tower are reduced. The invention also discloses an online monitoring method for deformation of a transmission line tower material, the method including firstly performing system installation and arrangement, then carrying out data acquisition and pre-processing, next, further analyzing and processing the pre-processed data in the monitoring center, and determining whether the state of the tower structure is normal according to the change of the obtained modal parameters.

Description

technical field [0001] The patent of the invention belongs to the field of online monitoring and fault diagnosis of transmission lines, and specifically relates to an online monitoring system for deformation of transmission line iron tower materials, and the invention also relates to a monitoring method using the transmission line tower material deformation monitoring system. Background technique [0002] Transmission line towers play an important role in supporting wires. At present, angle steel towers or steel pipe towers are used in transmission lines with voltage levels of 110kV to 750kV in my country. Transmission towers operating in the wild will experience abnormal force due to freezing, rainy and snowy weather, especially if the transmission line is covered with ice, which will cause excessive force on the cross-arm part of the transmission line iron tower, and even cause serious deformation of the cross-arm part of the tower material. For transmission towers operati...

AI Technical Summary

Problems solved by technology

Regardless of whether it is a steel pipe tower or an angle steel tower, if the tower material undergoes elastic deformation, it will generally not affect the health of the structure. When the elastic deformation develops into plastic deformation, the tower material may break.

Especially if the main material of the iron tower is broken, it is easy to cause the collapse of the iron tower

[0003] When the tower material is significantly deformed, the tower is already in a dangerous state. At present, there is no online monitoring device for the deformation of the tower material in the industry, and manual inspections are generally regular inspections, which may not be able to find faults in time

Images