Simulation Study on Inductive Characteristics of ±800 kV Kunliulong DC Line

YANG Xiaofeng; ZHAO Yongtao; ZHANG Shuhao; WANG Qi; LI Qing; CHEN Zhihui; LIU Xiaobing; LU Wenhao

doi:10.13296/j.1001-1609.hva.2021.09.009

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Simulation Study on Inductive Characteristics of ±800 kV Kunliulong DC Line

更新时间：2025-04-26

- Simulation Study on Inductive Characteristics of ±800 kV Kunliulong DC Line
- High VoltageApparatus Vol. 57, Issue 9, Pages: 66-71(2021)
- 作者机构：
  
  1. 中国南方电网有限责任公司超高压输电公司检修试验中心
  2. 西安高压电器研究院有限责任公司
  3. 西安西电开关电气有限公司
  4. 中国南方电网有限责任公司超高压输电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.09.009
  CLC： TM721.1
- Published：2021
- 稿件说明：
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YANG Xiaofeng, ZHAO Yongtao, ZHANG Shuhao, et al. Simulation Study on Inductive Characteristics of ±800 kV Kunliulong DC Line[J]. High voltageapparatus, 2021, 57(9): 66-71.
DOI：

YANG Xiaofeng, ZHAO Yongtao, ZHANG Shuhao, et al. Simulation Study on Inductive Characteristics of ±800 kV Kunliulong DC Line[J]. High voltageapparatus, 2021, 57(9): 66-71. DOI： 10.13296/j.1001-1609.hva.2021.09.009.

摘要

当±800 kV新东直流正常运行时

±800 kV昆柳龙线路与其部分线段并行

昆柳龙线路感应电压远远高于其他直流线路感应电压。文中利用有限元仿真软件建立新东直流和昆柳龙直流并行线段的二维仿真计算模型

仿真了新东直流输电线路带电运行情况下昆柳龙直流线路的感应电压特性。结果表明:柳北站—龙门站线路在静电场单独作用下

正极感应电压为6 kV

负极感应电压12 k V;在静电场与离子流场的合成电场作用下

正极感应电压为20.7 kV

负极感应电压30.5 kV

这与实际测量结果最高感应电压为42 kV较为接近

说明离子流场作用是邻近线路产生感应电的主要因素。

Abstract

±800 kV Kunliulong DC line is parallel to ±800 kV Xindong DC line in normal operation

which makes the Kunliulong line have induced voltage when it is not in operation.In this paper

the finite element simulation software is used to establish the two-dimensional simulation calculation model of Xindong DC and kunliulong DC parallel line section

and the induced voltage characteristics of kunliulong DC line under live operation of Xindong DC transmission line are simulated.The induced voltage distributions of the Kunliulong DC line generated by the Xindong DC transmission line were simulated in the cases of the electrostatic field and the combined field of electrostatic field and ion flow field

respectively.The results show that in the electrostatic

the induced voltage on the positive line of the Liubei-Longmen line was 6 kV

and the induced voltage on the other negative line was 12 kV.In the combined field of electrostatic field and ion flow field

the induced voltage on the positive line was 20.7 kV

and the induced voltage on the other negative line was 30.5 kV.The latter simulated result was more closed to the actual measurement results

which shows that the ion flow field is the main factor affecting the induced voltage on the adjacent DC lines.

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