Device for reducing power transmission line galloping and application method thereof

Abstract

The invention provides a device for reducing power transmission line galloping and an application method thereof. The device comprises an acceleration sensor, a heating resistor, a voltage stabilizer, an IGBT (insulated gate bipolar transistor) rectifying circuit, a permanent magnet, a spring, a coil, a penetrating rod, a shell, a bottom sealing plate, a solar lithium battery and a monitoring station. The application method is that the shell is fixed at the lower end of an insulator string, a lifting lug at the end part of the penetrating rod is connected with a power transmission line, the spring drives the permanent magnet to carry out reciprocating motion during galloping, the coil outside the permanent magnet generates current, and electric energy is consumed through the heating resistor, thereby enabling the temperature of the penetrating rod to rise; and the acceleration sensor transmits detection signals to the monitoring station so as to carry out real-time monitoring on motion conditions of the penetrating rod. The device and the application method thereof have the beneficial effects that vibrations of the power transmission line is absorbed through the elasticity of the spring, thereby reducing the vibration amplitude of a cable; and meanwhile, the coil provides power for the heating resistor, thereby avoiding a phenomenon that the penetrating rod is frozen in winter.

Description

technical field [0001] The invention relates to a device for reducing galloping of a power transmission line and a use method thereof. Background technique [0002] Galloping of overhead transmission lines is the self-excited vibration of low frequency and large amplitude of the conductors. Galloping can cause various hazards. Light ones may cause flashover and tripping. For major power grid accidents such as towers, galloping is mainly caused by three factors: icing, structural parameters of conductors, and wind excitation. [0003] If the galloping amplitude is too large, the wire at the exit of the suspension insulator string clamp will be lifted, damaged and broken; when the tension of the wire changes, the wire cannot move in the suspension clamp due to the large holding force between the ordinary suspension clamp and the wire, resulting in a straight line The insulator string of the tower is inclined along the direction of the conductor, and sometimes the inclination ...

AI Technical Summary

Problems solved by technology

[0005] At the same time, because the icing and wind excitation are affected by the micro-topography and micro-climate of the area where the conductor is located, the occurrence of conductor galloping is very random, and the characteristics of galloping are also different. Therefore, the relevant galloping parameters are calculated by monitoring It is difficult to realize online monitoring of wire galloping

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