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High-voltage direct current transmission conductor

A high-voltage direct current transmission and wire technology, applied in conductors, circuits, power cables, etc., can solve problems such as call interference, and achieve the effects of increasing the current carrying capacity, reducing the effective cross-sectional area, and increasing the equivalent resistance

Pending Publication Date: 2018-09-21
CHINA SOUTH POWER GRID ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the harmonic current value exceeds a certain amount, the electromagnetic field generated by it may have an electromagnetic impact on the communication lines near the line, causing interference beyond the allowable limit to the call

Method used

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] see figure 1 , is a schematic cross-sectional structure diagram of a high-voltage direct current transmission conductor provided by an embodiment of the present invention.

[0018] The high-voltage direct current transmission wire includes a reinforcing core 1 , an inner current-carrying layer 2 twisted on the outer surface of the reinforcing core 1 , and an outer current-carrying layer 3 twisted on the outer surface of the inner current-carrying layer 2 . ...

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Abstract

The present invention discloses a high-voltage direct current transmission conductor. The conductor comprises a strengthening core, an inner current carrying layer twisted at the outer surface of thestrengthening core and an outer current carrying layer twisted at the outer surface of the inner current carrying layer; the strengthening core is made by twisting one or more than one mongline, the inner current carrying layer is made by twisting a plurality of conductor monglines, the outer current carrying layer is made by twisting a plurality of metal monglines, and the skin depth of the metalmonglines is smaller than the skin depth of the conductor monglines. The high-voltage direct current transmission conductor can effectively inhibit the harmonic current, can improve the current carrying amount of the transmission conductor and can facilitate remote transmission.

Description

technical field [0001] The invention relates to the field of power transmission wires, in particular to a high-voltage direct current transmission wire. Background technique [0002] The high-voltage DC overhead line is used to connect the sending and receiving end converter stations, and undertakes the function of conducting electric energy. The transmission wire is an important part of the overhead transmission line, which acts as a current carrier and has a certain mechanical strength. For high-voltage DC overhead lines, the conductors usually adopt a concentric structure of round wires, that is, multiple layers of single wires are helically twisted around a central core. [0003] When the HVDC converter is working, the rectified voltage contains not only a DC component but also some AC components, and the AC component is composed of many harmonic components. The harmonic components of the rectified voltage will inevitably produce rectified harmonic currents of the same...

Claims

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Application Information

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IPC IPC(8): H01B9/00H01B5/10
CPCH01B5/104H01B9/006H01B9/008
Inventor 项阳刘磊罗兵厉天威李敏黄开天唐力
Owner CHINA SOUTH POWER GRID ELECTRIC POWER RES INST
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