Device and method for controlling operation mode of segmented insulated line

Abstract

The invention discloses a device and a method for controlling the operation mode of a segmented insulated line. The device comprises a remote control device, an in-station portal frame tower, N continuous towers and 2N+1 switches, and N is a non-negative integer. According to the invention, the optical fibers of each section of line are connected through the middle of the OPGW line, so that optical fiber communication of the OPGW in the whole process is ensured; 4-10 kilometers of the OPGW sectional insulation line is a section, 5-10 towers are arranged in each section of line span, the head end of each section of line is grounded, and the tail end of each section of line is insulated; each section of OPGW line is connected with an optical fiber of a connection tower, and the optical fiberconnection adopts wavelength division multiplexing to establish an information communication channel of a control switch; and whole-course continuous tower information acquired by the OPGW segmentedinsulated line is transmitted to the remote control device. Therefore, the safe operation rate of a power grid transmission line can be promoted, equipment defect accidents such as OPGW and overhead ground wire strand breakage, transmission tower collapse and hardware damage caused by icing are reduced, the operation efficiency is improved, the power grid operation and inspection cost is reduced,and the safe production of a power grid is promoted.

Description

technical field [0001] The invention relates to the technical field of grid operation, in particular to a device for controlling the operation mode of segmented insulated lines and a method for controlling the operation mode of segmented insulated lines. Background technique [0002] In the domestic power grid, OPGW (Optical Fiber Composite Overhead Ground Wire) and overhead ground wires of high-voltage and ultra-high-voltage transmission lines are generally installed by tower-by-tower grounding; OPGW and overhead ground wires of UHV transmission lines are often installed in sections Insulated installation. When it is rainy, snowy and low temperature, it is easy to cause the transmission line OPGW and overhead ground wire to be covered with ice. It is common to see that the OPGW and overhead ground wire are covered with ice up to 16.8KG per meter. Severe icing will cause OPGW and overhead ground wire breakage, tower collapse, hardware damage, and communication interruption,...

AI Technical Summary

Problems solved by technology

This kind of manual operation is time-consuming, the workload of manual work is large, and the risk of climbing and falling is high, which increases the cost of transportation and inspection for enterprises.

[0005] (1) The internal professional division of the power industry is relatively fine, resulting in technical isolation between majors, and primary power transmission professionals are not familiar with how to use OPGW fiber optic channels, which affects the application of the entire communication signal transmission technology

[0006] (2) Primary transmission majors are not familiar with the establishment of secondary remote information collection and control system

[0007] (3) The domestic power transmission line OPGW and overhead ground wire melting ice are connected to the line at the near end in the substation by using an automatic connector to connect the power supply. It can stay in the short-distance semi-automatic working mode. The whole line connection requires operators to work at the connecting tower, and the operation switch is switched to the ice-melting operation mode.

[0008] (4) At present, there is no project in the domestic power grid that uses remote control device technology to apply the full-process ice-melting automatic connection switching operation mode of OPGW segment insulation and overhead ground wire segment insulation lines

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