A wind-induced vibration suppression control system for transmission line conductors

Abstract

The invention discloses a transmission line conductor wind vibration suppression control system, which comprises a mechanical bearing system for mounting the transmission line conductor wind vibrationsuppression control system on a transmission line tower; A hydraulic trapping system for converting the vibration kinetic energy of the conductor on the transmission line tower into hydraulic energyand then outputting the hydraulic kinetic energy in rotation while reducing the vibration amplitude of the conductor; conversion and energy storage system for converting rotational kinetic energy output by the hydraulic energy capture system into electrical energy storage; An on-line monitoring system is used for monitoring the vibration amplitude of the conductor, and sending an alarm message when the vibration amplitude of the conductor is too large. The invention is relatively simple in structure, safe and reliable, and can not only suppress the wind vibration of the conductor, but also provide electric energy for the on-line monitoring system by utilizing the intercepted vibration energy, so that the operation and maintenance personnel can always know the field situation.

Description

technical field [0001] The invention relates to the technical field of wind prevention and disaster reduction for transmission lines, in particular to a wind vibration suppression control system for transmission line conductors. Background technique [0002] The transmission line tower is a long-span towering structure, the distance between the conductor and the ground is long, the flexibility is large, and it is very sensitive to wind loads, and periodic motions often occur under the action of wind excitation. Wind vibration is one of the main causes of bolt loosening and hardware damage. If the vibration amplitude of the wire is too large, it may even cause major accidents such as broken strands and burns, broken wires and tower collapse. Therefore, the prevention and monitoring of wire vibration has great economic and social significance. [0003] At present, the anti-vibration devices commonly used in power grids mainly include anti-vibration hammers, damping wires, in...

AI Technical Summary

Problems solved by technology

[0003] At present, the anti-vibration devices commonly used in power grids mainly include anti-vibration hammers, damping wires, interphase spacers, etc. Anti-vibration hammers are low in cost and widely used. Reasonable anti-vibration hammers can use the inertia of the hammer to consume vibration energy, but Anti-vibration hammers can increase the burden on wires and clamps, and weights often lose their anti-vibration capabilities by loosening and shifting

Damping wire is a special wire with large internal friction and energy absorption characteristics. When the wire vibrates, it consumes system energy through friction and collision. However, the energy consumed by the friction between wires is too small, and it is only effective for breeze vibration.

The interphase spacer uses a bracket with insulation performance and mechanical strength to mechanically connect the wires so that they are mutually restricted to achieve the purpose of anti-dancing, but it is prone to leakage burns of organic materials, resulting in flashover accidents

[0004] Conductor vibration, as one of the working conditions that most need to be monitored, often occurs in bad weather and open suburbs, and it is difficult to monitor. Clean up floating and sinking, snow accumulation, poor operation under harsh conditions

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