A composite spacer ring-nutation damper for controlling the overall galloping of conductors

Abstract

The invention relates to a composite spacer ring-nutation damper for controlling overall galloping of a wire. The composite spacer ring-nutation damper is arranged on a high-voltage power transmissionsplit conductor and comprises a wire clamp spacer ring damping device and nutation damping devices, wherein the wire clamp spacer ring damping device is connected with each split sub-conductor, and the nutation damping devices are connected with the wire clamp spacer ring damping device and arranged on the two sides of the wire clamp spacer ring damping device. Compared with the prior art, the composite spacer ring-nutation damper has the advantages of being high in energy consumption, self-adaptive in energy consumption, high in sensitivity, convenient to install, convenient to design according to needs and the like, and has important value for solving the technical problem of galloping control of the high-voltage power transmission split conductor, especially overall galloping control of the conductor.

Description

technical field [0001] The invention relates to an ice-coated wire galloping control device, in particular to a composite spacer ring-nutation damper for controlling the overall galloping of the wire. Background technique [0002] Under the extreme weather conditions of continuous low temperature and freezing rain and snow, ice is easy to form on high-voltage transmission lines. Under the action of certain wind and ice, a low-frequency (0.1-3Hz) high-amplitude (5-300 times the wire diameter) vibration will occur in the wire. The large dance of the wires is likely to cause flash welding between the wires, damage and fall off of the connecting hardware, and even cause disconnection, collapse of the tower and paralysis of the power transmission system. In order to ensure the normal operation of transmission lines, the galloping control of ice-coated conductors has important social value and practical significance. [0003] With the development of high-voltage transmission tec...

AI Technical Summary

Problems solved by technology

Currently galloping control devices for multi-split conductors include wire clip spacing rings, detuned pendulums, double pendulum anti-dance devices, etc. These devices mainly control the occurrence of galloping by changing the intrinsic properties or aerodynamic characteristics of the conductors (such as the vertical and torsion of the separated conductors). directional frequency, increase galloping critical wind speed), the ability to suppress the galloping of split conductors, especially the overall galloping of conductors is insufficient

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