Suspended overhead transmission line online monitoring system and method

Abstract

The invention discloses a suspended overhead transmission line online monitoring system and method. The system comprises a suspended monitoring device and a master station system, wherein the suspended monitoring device comprises a mainboard module, a sensor module, a data storage unit, a suspension module, an electricity taking device, a communication module, a camera-shooting module and an innerdiameter adjustment mechanism; the mainboard module is connected with the sensor module, the suspension module, the camera-shooting module, the communication module and the data storage unit; and thesuspension module and the inner diameter adjustment mechanism are connected into a whole. The suspended monitoring device is used for collecting various meteorological conditions and conductor displacement of transmission conductors and transmitting data to the master station system through the communication module; whether a corresponding early-warning threshold is reached or not is judged through a model established according to a neural network in the master station system; and online monitoring is performed on galloping or icing of the transmission conductors under the various meteorological conditions. According to the suspended overhead transmission line online monitoring system and method, self-adaptive adjustment of the monitoring device during detection of transmission lines withdifferent outer diameters can be realized by adjusting the inner diameter change mechanism, the defect that traditional conductor fixing and monitoring equipment is unadjustable is overcome, and theuniversality of the device is enhanced.

Description

technical field [0001] The invention belongs to the field of overhead power transmission line engineering, and in particular relates to an on-line monitoring system and method for suspended overhead power transmission lines. Background technique [0002] With the development of my country's smart grid, a number of new large-capacity, long-distance overhead transmission lines will be built soon, and their line security is facing new challenges. Large-span overhead transmission lines usually cross rivers, seas and lakes. In areas with bad weather, when subjected to complex environments such as wind, rain, ice and snow, the transmission line will have safety problems such as breeze vibration, dancing, and even ice-covered disconnection, resulting in line breakage and hardware damage. , or even the collapse of line towers, etc., will cause large-scale power outages, seriously affecting people's production, life and property safety. Therefore, through the online monitoring devic...

AI Technical Summary

Problems solved by technology

However, fixedly installed monitoring devices are often loosened due to wind vibration, galloping and thermal expansion and contraction of the transmission line, which affects the normal use of the sensor, reduces the service life of the monitoring device, and increases the maintenance cost of the monitoring system.

At the same time, after the monitoring device is loose and deviates from the original fixed position, the monitoring device will slip along with the vibration of the transmission line and touch other anti-vibration fittings on the transmission line, affecting the safety of the transmission line

[0005] Therefore, in order to solve the shortcomings of the existing fixed monitoring devices such as easy loosening, poor stability, and low durability, it is urgent to develop a long-term on-line monitoring device and method for intelligent transmission lines with novel design, durability, and high performance.

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