Ice layer thinning method of power transmission line

Abstract

The invention relates to an ice layer thinning method of a power transmission line. The ice layer thinning method involves a simulation wire, a capacitive sensing ice layer sensor and a robot travelling mechanism, wherein the simulation wire is arranged at a position, where an iron tower is located, of the power transmission line, the capacitive sensing ice layer sensor is arranged on the simulation wire and used for detecting real-time thickness of an ice layer of the simulation wire, and the robot travelling mechanism is carried on the power transmission line and used for receiving the real-time thickness of the ice layer and carrying out ice shaving operation on the real-time thickness of the ice layer. By the ice layer thinning method, the ice shaving force of a robot can be controlled according to the real-time thickness of the ice layer of the power transmission line, and thus, the effect of shaving the ice layer is improved.

Description

technical field [0001] The invention relates to the field of power grid maintenance, in particular to a method for reducing ice layers of power transmission lines. Background technique [0002] The icing of the transmission line will cause the following hazards: (1) damage to the tower, if the line is too thick with ice, it will cause the mechanical load of the tower to be overloaded and break; When the ice falls off first (the ice coating on the conductors does not necessarily fall off at the same time), the conductors will rise rapidly or jump up and down, causing a phase-to-phase short circuit, tripping the line switch, and interrupting the power supply; When the ice thickness in each span of the line is uneven, the conductor sag will change greatly, causing the hanging insulator string to tilt, and the fittings bear a large horizontal force. In the span with too thick ice, it will cause (4) After the insulator strings are covered with ice, the insulation performance wil...

AI Technical Summary

Problems solved by technology

[0002] The icing of the transmission line will cause the following hazards: (1) damage to the tower, if the line is too thick with ice, it will cause the mechanical load of the tower to be overloaded and break; When the ice falls off first (the ice coating on the conductors does not necessarily fall off at the same time), the conductors will rise rapidly or jump up and down, causing a phase-to-phase short circuit, tripping the line switch, and interrupting the power supply; When the ice thickness in each span of the line is uneven, the conductor sag will change greatly, causing the hanging insulator string to tilt, and the fittings bear a large horizontal force. In the span with too thick ice, it will cause Grounding accidents occur due to severe sagging of wires; (4) After the insulator strings are covered with ice, the insulation performance will be greatly reduced. When the ice-covered insulator strings are suspended and melted, icicles may be formed, which will short-circuit the insulator strings and cause grounding accidents

[0003] In the prior art, the technical solution for deicing transmission lines still mainly relies on on-site manual operations, that is, arranging employees of the local power supply management department to carry deicing tools to carry out on-site deicing of transmission lines within the jurisdiction. Although this method can achieve Deicing effect, but the mode of artificial deicing inherently has the disadvantages of low deicing efficiency, time-consuming and labor-intensive. At the same time, if there is a little carelessness, the deicing personnel may fall from a high place or be hit by the high voltage of the power transmission line, causing serious damage to the environment. Deicing personnel will cause serious personal injury, and will also cause certain damage to power supply equipment

[0004] In the prior art, some remote control schemes for robot deicing have also appeared. However, due to the excessive equipment and complex structure of the transmission grid, the environment of the transmission line is generally relatively harsh, and the structural design of the robot itself is unreasonable, resulting in the existing technology. The robot deicing solution is difficult to apply in large quantities and can only stay in the laboratory stage; more importantly, the lack of on-site electronic ice layer measurement equipment leads to poor deicing effect

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