Positive and negative electrodes syncretic optical fiber composite flexible DC medium voltage cable for urban distribution network system

Abstract

The invention discloses a positive and negative electrodes syncretic optical fiber composite flexible DC medium voltage cable for an urban distribution network system. The positive and negative electrodes syncretic optical fiber composite flexible DC medium voltage cable comprises a return cable unit, a polar cable unit and an optical fiber unit, and after the return cable unit, the polar cable unit and the optical fiber unit are formed into the cable, a filling layer, a taped covering, a plastic inner protection layer, a metal armored layer and a plastic outer protection layer are sequentially arranged on an outer layer from inside to outside. The positive and negative electrodes syncretic optical fiber composite flexible DC medium voltage cable disclosed by the invention is safe and reliable in operation, meanwhile can realize power transmission and optical fiber communication and can meet the requirements of relevant regulations, thereby capable of being widely used in novel urban distribution network systems.

Description

technical field [0001] The invention relates to a flexible direct current cable, in particular to a new type of positive and negative polarity integrated optical fiber composite flexible direct current medium voltage cable for application in a new type of urban distribution network system. Background technique [0002] Flexible DC transmission technology is a new type of DC transmission technology based on voltage source commutation technology (VSC), which has the advantages of low line cost, low line loss, stable system, flexible control of active power and reactive power when transmitting the same transmission power, Reliable operation, convenient phased construction and capacity expansion and other advantages, so it has received more and more attention worldwide. [0003] At present, the power load of urban distribution network is growing rapidly, and the construction of urban load center power points is insufficient, and a large amount of electric energy needs to be tran...

AI Technical Summary

Problems solved by technology

[0003] At present, the power load of urban distribution network is growing rapidly, and the construction of urban load center power points is insufficient, and a large amount of electric energy needs to be transmitted over long distances, resulting in problems such as insufficient power supply capacity, overload, low voltage, and poor reliability of urban distribution network.

At the same time, with the acceleration of urbanization, the development of urban distribution networks is facing problems such as lagging construction, tight channels, and access to new energy power generation, which seriously threaten the safe and stable operation of urban power grids.

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