Electromagnetic Environment Analysis on ±800 kV/±500 kV Double-circuit DC Transmission Lines

LI Lingyan; DU Zhiye; RUAN Jiangjun; CHEN Yuan; LI Jian; HUANG Guodong

doi:10.13296/j.1001-1609.hva.2016.09.005

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Electromagnetic Environment Analysis on ±800 kV/±500 kV Double-circuit DC Transmission Lines

更新时间：2025-04-26

- Electromagnetic Environment Analysis on ±800 kV/±500 kV Double-circuit DC Transmission Lines
- High VoltageApparatus Vol. 52, Issue 9, Pages: 26-33(2016)
- 作者机构：
  
  1. 武汉大学电气工程学院
  2. 中南电力设计院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.09.005
  CLC： TM75
- Published：2016
- 稿件说明：
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[1]李凌燕,杜志叶,阮江军,陈媛,李健,黄国栋.±800kV/±500kV混压双回直流线路的电磁环境分析及改善研究[J].高压电器,2016,52(09):26-33.

LI Lingyan, DU Zhiye, RUAN Jiangjun, et al. Electromagnetic Environment Analysis on ±800 kV/±500 kV Double-circuit DC Transmission Lines[J]. High voltageapparatus, 2016, 52(9): 26-33.
[1]李凌燕,杜志叶,阮江军,陈媛,李健,黄国栋.±800kV/±500kV混压双回直流线路的电磁环境分析及改善研究[J].高压电器,2016,52(09):26-33. DOI： 10.13296/j.1001-1609.hva.2016.09.005.

LI Lingyan, DU Zhiye, RUAN Jiangjun, et al. Electromagnetic Environment Analysis on ±800 kV/±500 kV Double-circuit DC Transmission Lines[J]. High voltageapparatus, 2016, 52(9): 26-33. DOI： 10.13296/j.1001-1609.hva.2016.09.005.

摘要

±800 kV/±500 kV混压双回直流输电线路可解决中国日益增长的电力需求和输电走廊资源紧缺的矛盾

但目前尚无建造和运行经验

研究其电磁环境具有重要工程指导意义。文中采用解析法、CISPR和BPA经验公式法等方法

计算了两种基本塔型及相应导线布置方式下的导线和地线表面场强、地面电场和离子流密度分布、线路最小对地距离和走廊宽度、可听噪声和无线电干扰等电磁环境相关指标

分析了不同因素（导线排列方式、导线高度、线间距离等）对电磁环境的影响

并与±800 kV直流单回线路和±500 kV直流双回线路的电磁环境进行了对比。结果表明

±800 kV/±500 kV混压双回线路在选择合适的塔型及导线布置方式下可基本满足电磁环境要求

且改变相应的线路参数能有效改善其电磁环境问题。

Abstract

For understanding the electromagnetic environment of the ±800 kV/±500 kV double-circuit DC transmission lines on the same tower

analytic method as well as CISPR and BPA empirical formulas are employed to calculate the electromagnetic environment indexes of two basic tower types with respective conductor arrangement

including surface field gradient of conductor and ground wire

distributions of total electric field and ion current density at ground

audible noise and radio interference strength

minimum distance to ground

and line corridor width. The effects of such factors as conductor arrangements

line height and conductor spacing on electromagnetic environment are analyzed

and the results are compared with those of ±800 kV single-circuit transmission line and ±500 kV double-circuit transmission line. It is concluded that the ±800 kV/±500 kV double-circuit transmission lines can meet the requirements for electromagnetic environment if proper tower type and conductor configuration are selected

and changing some parameters of the lines can effectively improve the electromagnetic environment.

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