Suppression of Secondary Arc for UHV Half-wavelength Transmission Lines

WANG Huaxin; WANG Jian; ZHAO Yongxi; WANG Songfeng

doi:10.13296/j.1001-1609.hva.2018.06.008

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Suppression of Secondary Arc for UHV Half-wavelength Transmission Lines

更新时间：2025-04-26

- Suppression of Secondary Arc for UHV Half-wavelength Transmission Lines
- High VoltageApparatus Vol. 54, Issue 6, Pages: 53-59(2018)
- 作者机构：
  
  上海电力学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.06.008
  CLC： TM75
- Published：2018
- 稿件说明：
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[1]王华昕,王建,赵永熹,王松峰.特高压半波长输电线路潜供电弧抑制措施研究[J].高压电器,2018,54(06):53-59.

WANG Huaxin, WANG Jian, ZHAO Yongxi, et al. Suppression of Secondary Arc for UHV Half-wavelength Transmission Lines[J]. High voltageapparatus, 2018, 54(6): 53-59.
[1]王华昕,王建,赵永熹,王松峰.特高压半波长输电线路潜供电弧抑制措施研究[J].高压电器,2018,54(06):53-59. DOI： 10.13296/j.1001-1609.hva.2018.06.008.

WANG Huaxin, WANG Jian, ZHAO Yongxi, et al. Suppression of Secondary Arc for UHV Half-wavelength Transmission Lines[J]. High voltageapparatus, 2018, 54(6): 53-59. DOI： 10.13296/j.1001-1609.hva.2018.06.008.

摘要

潜供电弧是发展特高压半波长输电技术面临解决的关键问题之一。文中首先采用分段法建立了基于分布参数的潜供电弧数学模型

分析快速接地开关（high speed grounding switch

HSGS）对半波长输电线路潜供电弧的抑制作用;其次

建立半波长输电线路电磁暂态模型

分析快速接地开关限制因素对抑制效果的影响;最后

给出了快速接地开关沿线非均匀配置方法

获得了较优的快速接地开关配置方法。研究表明:HSGS投入时间对潜供电流抑制效果影响不大

为保留足够的时间裕度

应取值150 ms。HSGS接地电阻对潜供电流抑制效果影响较大

应小于1.5Ω。半波长输电线路采用沿线非均匀9组HSGS的配置方法

可有效抑制其潜供电流。

Abstract

For suppressing secondary arc in half-wavelength AC transmission（HWACT）

a mathematical model of secondary arc based on distribution parameters is established by the sectioning method to analyze the suppression effect of high-speed grounding switch（HSGS） on the secondary arc current. And a transient electromagnetic model of HWACT line is built to analyze the influence of the limiting factor of HSGS on the suppression effect. In addition

an optimized scheme of HSGS arrangement is proposed to restrain the secondary arc on HWACT line. The results show that the HSGS reacting time has a little effect on the suppression of the secondary arc current

so the time should be set for 150 ms in order to retain enough time margin. The grounding resistance of HSGS imposes significant influence on the secondary arc current

so its value should be less than 1.5 Ω. HWACT line taking non-uniformly arranged 9 sets of HSGSS configuration can effectively restrain its secondary arc current

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