Influence of Series-resonant Type FCL on Switching Overvoltage of Off-load Transmission Line

LIU Hongshun; Lü Tingting; HAN Mingming; ZOU Liang; ZHANG Li; LI Qingquan

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Influence of Series-resonant Type FCL on Switching Overvoltage of Off-load Transmission Line

更新时间：2025-12-08

- Influence of Series-resonant Type FCL on Switching Overvoltage of Off-load Transmission Line
- Vol. 41, Issue 10, Pages: 3392-3399(2015)
- 作者机构：
  
  1. 山东大学电气工程学院特高压输变电技术与装备山东省重点实验室
  2. 国网山东省电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 October 2015，
  
  Published：2015
- 稿件说明：
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LIU Hongshun, Lü Tingting, HAN Mingming, et al. Influence of Series-resonant Type FCL on Switching Overvoltage of Off-load Transmission Line[J]. 2015, 41(10): 3392-3399.
DOI：

LIU Hongshun, Lü Tingting, HAN Mingming, et al. Influence of Series-resonant Type FCL on Switching Overvoltage of Off-load Transmission Line[J]. 2015, 41(10): 3392-3399. DOI：

摘要

串联谐振型故障限流器的应用将改变系统自振频率

其对开合超高压空载线路操作过电压的影响有待深入研究。首先

仿真分析了安装故障限流器前后合闸空载输电线路末端过电压波形

理论计算了线路末端过电压自由分量振荡周期、工频分量和自由分量幅值与限流电抗的数学关系

定性总结了不同限流电抗对合闸空载输电线路末端过电压的影响规律。其次

考虑断路器电弧有无发生重燃

分别分析了安装故障限流器前后开断空载线路末端电压波形

得到了电弧重燃时过电压瞬时峰值、自由分量振荡周期与限流电抗的关系曲线。研究结果表明

随着限流电抗的增大

合闸过电压最大值保持不变

开断过电压最大值及开合过电压上升率均呈下降趋势

串联谐振型故障限流器的安装有利于超高压空载线路的开合。

Abstract

The applications of series resonant type fault current limiter（SRFCL） may change the natural frequency of a system. And its impacts on switching overvoltage of off-load EHV transmission line need further investigation. Firstly

the terminal overvoltage waveforms of switching on off-load line are simulated in the presence and absence of SRFCL. The relationship of free component oscillation period

fundamental component amplitude

free component amplitude and current limiting reactance are gotten by theoretic calculation. The law of the influence of different current limiting reactance on terminal voltage of switching on off-load line is summarized. Secondly

considering arc re-ignition occurs or not

the terminal overvoltage waveforms of switching off off-load line in the presence and absence of SRFCL are analyzed. When arc reignites

the relationship curves between instantaneous maximum of overvoltage

free component oscillation period and current limiting reactance are presented. The research results show that the maximum of switching on overvoltages remains unchanged and the maximum of switching off overvoltage

as well as the rise rate of them presents downtrend as current limiting reactance increases. The installation of SRFCL is benefit for switching EHV off-load line.

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