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Conductor configuration method for direct current power transmission circuit

A technology of DC transmission lines, vertical arrangement, applied in the direction of DC network circuit devices, circuit devices, spatial arrangement/configuration of cables, etc.

Inactive Publication Date: 2009-10-28
STATE GRID ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has electromagnetic environment problems, lightning protection problems, and insulation coordination problems.

Method used

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  • Conductor configuration method for direct current power transmission circuit
  • Conductor configuration method for direct current power transmission circuit
  • Conductor configuration method for direct current power transmission circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] Concrete analysis process of the present invention is:

[0022] 1. Simulation test of DC synthesis field

[0023] 1.1 Test plan

[0024] Qualitative analysis of the synthetic field strength is carried out through simulation tests, the test contents include: 1) horizontal arrangement of polar wires (as a comparison); 2) vertical arrangement of polar wires with positive wires on top; 3) vertical arrangement of polar wires with negative wires on top. According to the 1:20 reduction of the actual tower type, the model line segment is established, and the wires arranged horizontally are pressed Picture 1-1 Dimensions to create a reduced model. The minimum ground-to-ground distances h are 575mm, 800mm, and 1100mm (corresponding to actual heights of 11.5m, 16m, and 22m). Apply positive and negative DC voltages to the two wires respectively. There are tw...

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PUM

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Abstract

The invention relates to a conductor configuration method for a direct current power transmission circuit; electrode conductors of the direct current power transmission circuit are vertically configured by utilizing an F tower; and the conductor configuration method is characterized in that the configuration manner of the electrode conductors on the F tower is positive electrode at the upper part and negative electrode at the lower part. By the comparison of experimental data obtained from computation and experiments, the method is proven to have relatively high accuracy, be applicable to shrunk corridor for direct current power transmission in the future and improve the total electric field of the power transmission circuit.

Description

technical field [0001] The invention belongs to the field of electromagnetic environment of direct current transmission engineering, and specifically relates to a method for arranging conductors of direct current transmission lines for reducing the line corridor and improving the electromagnetic environment. Background technique [0002] In recent years, the construction of DC transmission lines in my country has developed rapidly, and the electromagnetic environment around DC transmission lines has attracted more and more attention. The electromagnetic environment problems of DC transmission lines mainly consider DC synthetic electric field, ion flow, DC magnetic field, radio interference (including TV interference) and audible noise, etc. In terms of frequency, these aspects cover the range from 0Hz to hundreds of MHz. [0003] Conventional DC lines are arranged horizontally. When passing through densely populated areas, the demolition of houses in the corridors of conven...

Claims

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Application Information

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IPC IPC(8): H02G7/20H02J1/00
Inventor 邬雄万保权张小武张广洲路遥张建功张业茂
Owner STATE GRID ELECTRIC POWER RES INST
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