Calculation of Telecommunication Interference Caused by Yunnan-Guangdong &#177;800 kV Ultra High Voltage DC Transmission Link

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Calculation of Telecommunication Interference Caused by Yunnan-Guangdong ±800 kV Ultra High Voltage DC Transmission Link

更新时间：2025-07-09

- Calculation of Telecommunication Interference Caused by Yunnan-Guangdong ±800 kV Ultra High Voltage DC Transmission Link
- Vol. 43, Issue 4, Pages: 106-110+115(2009)
- 作者机构：
  
  西安交通大学电气工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM721.1
- Online First：10 April 2009，
  
  Published：2009
- 稿件说明：
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Calculation of Telecommunication Interference Caused by Yunnan-Guangdong ±800 kV Ultra High Voltage DC Transmission Link[J]. 2009, 43(4): 106-110+115.
DOI：

Calculation of Telecommunication Interference Caused by Yunnan-Guangdong ±800 kV Ultra High Voltage DC Transmission Link[J]. 2009, 43(4): 106-110+115. DOI：

摘要

为了分析直流输电线路对通信干扰的影响

提出了一种准确计算直流输电线路对电信回路电磁干扰影响的方法.首次将交直流基波和谐波潮流统一算法应用于通信线路干扰计算中

在考虑了直流输电线路分布参数的情况下

进行了各种运行方式下直流输电线路的谐波电流和电压的计算

发现交流母线基波电压相位差对谐波电流计算有着不可忽略的影响.同时

利用线路的具体结构进行了通信干扰计算所需的各种参数的计算.在此基础上

根据不同运行方式分别计算了直流线路谐波电流正序、零序分量通过感性耦合引起的通信干扰

给出了云广直流线路在不同接近距离时通信回路上的等效干扰电压.提出的方法对正确地计算通信干扰有现实的意义.

Abstract

To calculate the telecommunication interference caused by voltage high DC transmission lines

an accurate method is proposed

where the unified fundamental frequency and harmonic load flow algorithm is firstly applied to the telecommunication interference. The distributions of harmonic voltage and harmonic current along DC lines under different operation modes are calculated with an accurate model of converter and the distribution parameters of DC lines

and the influence of the fundamental frequency voltage phase-difference of AC buses at the two terminals is considered. The different parameters and coefficients necessary for telecommunication interference calculation

such as the screening factor of overhead ground wire and coupling impedances

are calculated for Yunnan-Guangdong ±800 kV ultra high voltage DC(UHVDC)transmission lines. The telecommunication interferences caused by positive-sequence and zero-sequence components of harmonic current under different operation modes are estimated respectively. The equivalent interference voltage caused by Yunnan-Guangdong UHVDC transmission lines with different adjacent distances is obtained.

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references

庞廷智.直流输电线路对电信线路影响的标准及计算[J].电网技术,1999,23(11):50-54.

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李战鹰, 李建华, 夏道止.±800 kV特高压直流输电系统特征谐波分析[J]. 电网技术, 2006, 30(24): 6-9.

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西南电力设计院. DL/T5033-2006输电线路对电信线路危险和干扰影响防护设计规程[S].北京:中国电力出版社,2007.

International Telegram and Telephone Consultative Committee(CCITT). Directives concerning the protection of telecommunication lines against harmful effects from electricity lines [M]. Geneva, Switzerland:CCITT,1989.

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Calculation of Telecommunication Interference Caused by Yunnan-Guangdong ±800 kV Ultra High Voltage DC Transmission Link

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摘要

Abstract

关键词

Keywords

references