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

An overhead transmission line, distributed technology, applied in circuit devices, battery circuit devices, overhead installations, etc., can solve problems such as difficulties in implementing DC ice melting, avoid economic losses and social impacts, ensure safe and stable operation, and avoid tripping glitch effect

Pending Publication Date: 2021-08-10
GUIZHOU POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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

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[0023] Below in conjunction with accompanying drawing, the present invention is described in further detail, as figure 1 Shown:

[0024] The present invention realizes and comprises the steps:

[0025] S1. According to the structural characteristics of the ground wire, design the electromagnetic pulse coil for deicing the ground wire, including: an open cylindrical structure that is insulated from the ground wire and is in close contact with the ground wire without gaps, matching the diameter of the ground wire and embedded with an enameled wire;

[0026] S2. Matching the insulation and protection package embedded in the pulse coil;

[0027] S3. The structure of the lock-type pulse coil shell fixed to the ground wire;

[0028] S4. The ground wire electromagnetic self-power supply method for providing energy for deicing, including the electromagnetic power supply iron core and winding;

[0029] S5. The layout of the distributed coils according to the length of the ground wir...

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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 ...

Claims

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Application Information

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IPC IPC(8): H02G7/16H02J7/34
CPCH02G7/16H02J7/345
Inventor 黄欢张志劲马晓红蒋兴良曾华荣吴建蓉毛先胤杨旗班国邦马晓丹杨柳青张露松许逵殷蔚翎刘康
Owner GUIZHOU POWER GRID CO LTD
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