An overhead ground wire energy extraction system

Abstract

An overhead ground wire energy retrieval system includes a control terminal and a plurality of overhead ground wire energy taking devices, the overhead ground wire energy extracting device is installed on the pole tower at the consecutive section of the optical fiber composite ground wire, Include Extender, Electrical energy converters and residual cable racks, Also included are a plurality of OPGW insulation supports, a splicer for splicing optical fibers in an optical fiber composite ground wire, a remaining cable frame for collecting an overlong optical fiber composite ground wire, the splicer and the remaining cable frame both have an insulation structure and are insulated and installed on a pole tower, an electric energy converter is installed on the splicer, and the electric energy converter is serially connected with a steel strand of the optical fiber composite ground wire; The OPGW insulation support is installed on the top of the tower, and is used for leading the optical fiber composite ground wire down the tower insulation along the top of the tower and connecting the extender or the remaining cable rack. The invention replaces the original OPGW optical fiber connectiondevice to extract electric energy and finish the optical fiber connection, can obtain electric energy from the ground wire to supply power for the on-line monitoring device, reduces the loss of OPGW,and also can control the grounding mode of OPGW at the segmentation.

Description

technical field [0001] The invention belongs to the field of power transmission line design, and in particular relates to an overhead ground wire energy harvesting system, which uses an optical fiber composite ground wire (OPGW) to extract electric energy to provide power for an online monitoring device. Background technique [0002] At present, my country's power transmission lines often use two ground wires, one ordinary ground wire and one optical fiber composite ground wire (OPGW). The ordinary ground wire is insulated and single-point grounded, and the OPGW is grounded tower by tower. OPGW is to place the optical fiber in the ground wire of the overhead high-voltage transmission line to form an optical fiber communication network on the transmission line. This structural form has both the dual functions of the ground wire and communication. [0003] Under normal operating conditions, there is electrostatic induction and electromagnetic induction between the wire and the...

AI Technical Summary

Problems solved by technology

Some of these monitoring devices are directly installed on the poles and towers, and use solar energy and batteries to supply power. Since solar energy is greatly affected by the intensity of light, it cannot work at night and during continuous rainy periods. At the same time, the battery has a low life due to frequent charging and discharging. , the lack of high stability and long-life power supply severely limits the use of online monitoring devices installed on towers

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