Distributed electric pulse deicing device and method for overhead transmission line ground wire

Abstract

The invention discloses a distributed electric pulse deicing device and method for an overhead transmission line ground wire. According to the invention, an energy storage capacitor C is connected with an SCR circuit; the SCR circuit is connected with a resistor R; the resistor R is connected with an electromagnetic pulse coil L; the capacitor C is charged through a power supply BT; a silicon controlled rectifier K is connected in series to a charging circuit; the silicon controlled rectifier K is triggered to generate an electric pulse instruction, the energy storage capacitor C discharges through the electromagnetic pulse coil, repulsive force is generated between the electromagnetic pulse coil and a metal target object under the action of a pulsed magnetic field, and enables the surface of the metal target object to generate amplitude and high-acceleration motion within an elastic deformation range; the energy storage capacitor is excited to charge and discharge repeatedly; and after 2-3 times of independent pulse impact, ice covering the surface of the metal target object is crushed. According to the invention, the technical problems in the prior art that the ground wire needs to be insulated during ice melting of the overhead ground wire of the power transmission line, and direct-current ice melting is more difficult to implement are solved.

Description

technical field [0001] The invention belongs to the technical field of deicing ground wires of power transmission lines, and in particular relates to a distributed electric pulse deicing device and method for ground wires of overhead power transmission lines. [0002] technical background [0003] The icing of transmission lines seriously endangers the safe operation of the power grid. The icing of overhead ground wires is more serious than that of wires. It is more difficult, and the jump and vibration caused by the deicing process after the ground wire is iced are more likely to cause disasters and accidents on the transmission line. [0004] Except for the induced voltage and current, there is no high electric field and large current on the ground wire, so the ground wire is more likely to be covered with ice; the diameter of the ground wire is generally smaller than that of the wire, and the speed of icing is faster under icing conditions, and the thickness of the ice is ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a distributed electric pulse deicing device and method for the ground wire of overhead transmission lines, so as to solve the need for ground wire melting in the prior art to melt the ice of overhead ground wires of transmission lines Insulate the ground wire, and the implementation of DC ice melting is more difficult and other technical problems

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