Analysis and Calculation for the Capacitive Coupling of the AC and DC Transmission Lines on One Tower

REN Shu1; HE Wei1; YANG Fan1; MA Jun2; REN Xin-min3

doi:10.13296/j.1001-1609.hva.2012.04.008

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Analysis and Calculation for the Capacitive Coupling of the AC and DC Transmission Lines on One Tower

更新时间：2025-04-26

- Analysis and Calculation for the Capacitive Coupling of the AC and DC Transmission Lines on One Tower
- High VoltageApparatus Vol. 48, Issue 4, Pages: 39-45(2012)
- 作者机构：
  
  1. 重庆大学电气工程学院输配电装备及系统安全与新技术国家重点实验室
  2. 重庆市电力公司电力设计院
  3. 3. 南充市嘉陵区大通小学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.04.008
  CLC： TM726
- Published：2012
- 稿件说明：
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[1]任姝,何为,杨帆,马俊,任新民.同塔交直流线路容性耦合干扰的分析与计算[J].高压电器,2012,48(04):39-45.

REN Shu1, HE Wei1, YANG Fan1, et al. Analysis and Calculation for the Capacitive Coupling of the AC and DC Transmission Lines on One Tower[J]. High voltageapparatus, 2012, 48(4): 39-45.
[1]任姝,何为,杨帆,马俊,任新民.同塔交直流线路容性耦合干扰的分析与计算[J].高压电器,2012,48(04):39-45. DOI： 10.13296/j.1001-1609.hva.2012.04.008.

REN Shu1, HE Wei1, YANG Fan1, et al. Analysis and Calculation for the Capacitive Coupling of the AC and DC Transmission Lines on One Tower[J]. High voltageapparatus, 2012, 48(4): 39-45. DOI： 10.13296/j.1001-1609.hva.2012.04.008.

摘要

超（特）高压交直流同塔多回输电技术在解决输电走廊占地问题中的应用已经得到关注与研究

因此文中研究了交直流同塔的容性耦合干扰以及屏蔽措施。首先建立了单回和双回交流线路分别于直流线路同塔时

交直流线路的容性耦合干扰分析模型

分别计算了不同结构的交流线路在同塔并行的直流线路上产生的容性耦合感应电压。仿真结果表明:交流线路的排列方式、交直流垂直线间距和交流线路相导线的相序排列对容性耦合感应都有影响。感应电压值随垂直间距的增加呈非线性递减;双回交流线路逆向排序可以抑制感应电压

其中鼓型逆相排序可以使交流线路在直流线路中的感应电压值降低46.8%。同时

增加接地线也可以使感应电压值下降7%

8%。

Abstract

More and more attentions were concentrated on the development of ultra-high voltage（UHV） transmission line techniques.To solve the land occupation

building the UHV AC and DC transmission lines in the same tower is investigated by some experts.In this paper the capacitive coupling interference between the AC and DC transmission lines is calculated when they are erected in the same tower

the interference for different situation is analyzed

and based on the interference

measures to shield the interference are presented in the end.Results indicate that the induced voltage in the DC transmission lines depends on the arrangement of AC transmission lines

the vertical distance betwee

n the AC and DC transmission lines and phase of three phase AC have influence on the capacitive coupling effects.The induced voltage decreases with the increase of the distance.To restrain the induced voltage on the DC transmission lines the anti-phase of double circuit technique can be adopted.By using drum arrangement in the AC transmission lines

the induced voltage on the DC transmission lines can be decreased by 46.8%

and using ground wire can decrease the induced voltage by 7%

8%.

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