Calculation for AC Resistance of Overhead-line Conductor Based on Magnetic Properties Analysis

WANG Guoli; LIU Lei; LI Bin; PAN Wei; WANG Lu; LIU Liangshuai; LUO Yongfen; ZHAO Xuefeng

doi:10.13296/j.1001-1609.hva.2019.03.007

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Calculation for AC Resistance of Overhead-line Conductor Based on Magnetic Properties Analysis

更新时间：2025-04-26

- Calculation for AC Resistance of Overhead-line Conductor Based on Magnetic Properties Analysis
- High VoltageApparatus Vol. 55, Issue 3, Pages: 44-50(2019)
- 作者机构：
  
  1. 南方电网科学研究院有限责任公司直流输电技术国家重点实验室
  2. 西安交通大学电气学院
  3. 国网陕西省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.03.007
  CLC： TM75
- Published：2019
- 稿件说明：
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[1]王国利,刘磊,李斌,潘伟,王璐,刘良帅,罗勇芬,赵学风.基于磁特性分析的输电导线交流电阻计算[J].高压电器,2019,55(03):44-50.

WANG Guoli, LIU Lei, LI Bin, et al. Calculation for AC Resistance of Overhead-line Conductor Based on Magnetic Properties Analysis[J]. High voltageapparatus, 2019, 55(3): 44-50.
[1]王国利,刘磊,李斌,潘伟,王璐,刘良帅,罗勇芬,赵学风.基于磁特性分析的输电导线交流电阻计算[J].高压电器,2019,55(03):44-50. DOI： 10.13296/j.1001-1609.hva.2019.03.007.

WANG Guoli, LIU Lei, LI Bin, et al. Calculation for AC Resistance of Overhead-line Conductor Based on Magnetic Properties Analysis[J]. High voltageapparatus, 2019, 55(3): 44-50. DOI： 10.13296/j.1001-1609.hva.2019.03.007.

摘要

架空导线作为输送电力的载体

其交流电阻对导线输送容量及线路损耗有直接影响。文中对巴雷特（Barrett）提出的关于导线交流电阻计算的等效电路模型做了改进并称之为磁特性分析法

计及复合磁导率随温度的变化和线芯导电性

考虑不同层铝绞线之间的温差

以及采用与磁通量计算区域边界吻合的圆弧形电流微元。分别以该法、摩根法（Morgan）和日本JCS 0374算法对一种铝包钢芯铝绞线计算了交直流电阻比

结果显示磁特性分析法计算值相对另外两种方法偏小

理论分析认为该法计算结果更为接近实际。

Abstract

AC resistance of overhead-line conductor has a direct effect on transmission capacity and line loss. In this paper the equivalent circuit model of overhead-line conductor used to calculate alternating current resistance presented by Barrett is improved and then called the magnetic properties analysis method. The improvements in-clude the considerations of the change of complex permeability with temperature

the conductivity of steel-core

the temperature difference between the different layers of aluminum conductor

and arc - shaped current element matched with magnetic flux calculated area boundary. The AC/DC ratios of a kind of aluminum conductor rein-forced with aluminized steel core（ACSR/AZ）are calculated by the magnetic properties analysis method

the Mor-gan method and the method of JCS 0374 respectively

the results show the value accounted by the magnetic proper-ties analysis method is smallest

and is considered to be closest to practice in theory.

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