Method and apparatus for deicing of high voltage wire

Abstract

The invention discloses a deicing method for a high-voltage line, with the technical proposal as follows: detecting the natural frequency of an ice body; generating a mechanical wave with the same striking frequency with the natural frequency of the ice body for striking the ice body; and shaking off the ice body attached to the high-voltage line. The deicing method comprises the following steps: step 1, striking a barrier in the front, and receiving a reflected wave; step 2, determining whether the frequency of the returned reflected wave is the natural frequency of the ice body; and step 3, adjusting the striking frequency of a striking motor to be identical with the natural frequency of the ice body if the frequency of the returned reflected wave is the natural frequency of the ice body, and striking the ice body. A deicing device for the high-voltage line includes an outer shell (2), and further includes a travel mechanism, a detection and control mechanism and a power supply mechanism, wherein a deicing mechanism is arranged at least at one end of the travel mechanism; the detection and control mechanism is respectively connected with the travel mechanism, the deicing mechanism and the power supply mechanism. The deicing method can remove 70-94% of the ice on the high-voltage line, thereby efficiently reducing the weight of the ice covering the high-voltage line.

Description

technical field [0001] The invention relates to the field of power line maintenance equipment, in particular to a method and device for deicing power transmission lines. Background technique [0002] For the power system, icing is a natural disaster. The earliest recorded transmission line accident in my country occurred in 1954. In the past 30 years, large-scale freezing damage accidents have occurred in various parts of the country. After the large-scale ice disaster accident, another large-scale ice disaster accident occurred across the country in 1984, especially in 1996, 200 35-220KV lines in Fujian Province were broken due to ice-covered poles. [0003] Icing accidents of various transmission lines have occurred thousands of times in my country. In the past 10 years, serious icing accidents have endangered the safe operation of the 500KV system. [0004] Especially at the beginning of 2008, most provinces and regions in southern my country encountered rare snow disaste...

AI Technical Summary

Problems solved by technology

Such as: resistive wire, short-circuit current, and over-current to make it generate heat to achieve the purpose of deicing, but it cannot be popularized due to large power consumption and inconspicuous fruit.

[0008] 3. Mechanical deicing: At present, the technologies used at home and abroad include: ad hoc and manual methods, which are inefficient and unsafe, and are difficult to apply in actual engineering

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