De-icing device with load for agricultural distribution network transmission line, and de-icing method

Abstract

The invention discloses a de-icing device with load for an agricultural distribution network transmission line, and the device comprises a head end SVG module, a head end connection module, a head endconnection switch, a tail end SVG module, a tail end connection module and a tail end connection switch. The head end connection switch is connected with a line power side and is connected to the line, and the tail end connection switch is connected to a line non-power side, and is connected to the line. The tail end SVG module outputs a reactive current through the tail end connection module andthe tail end connection switch and injects the reactive current into the line for de-icing. The head end SVG module outputs the reactive power through the head end connection module and the head endconnection switch, injects the reactive power into the line and maintains the voltage of each point of the line within an allowable range. The invention also discloses a de-icing method for the device. The device can perform de-icing with the load, and can maintain the normal power supply of the line during the melting of the ice and the supply voltage is within the allowable range. There is no need to change the structure of a de-icing circuit, so the device achieves the plug and play effect, is convenient and quick, is high in adaptability and is easy to implement.

Description

technical field [0001] The invention specifically relates to an ice-melting device and an ice-melting method for a power transmission line load of an agricultural distribution network. Background technique [0002] With the development of economy and technology, electric energy has become an indispensable secondary energy source in people's production and life, bringing endless convenience to people's production and life. Therefore, the reliable and stable operation of the power system has become one of the most important tasks of the power system. [0003] However, with the frequent occurrence of extreme cold weather and ice and snow disasters, the icing situation of power lines is becoming more and more serious. Ice-covered transmission lines are likely to cause disconnection and pole down, which seriously threatens the safe operation of the power grid and the reliability of power supply. The hazards of icing on lines are mainly manifested in the aspects of downed tower ...

AI Technical Summary

Problems solved by technology

This method requires that the split wires of the line be insulated from each other, so a large-scale modification of the line is required, and it is only suitable for multi-split wires with higher voltage levels.

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