| 基于故障相并联补偿电流变化特征的单相自适应重合闸 |
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| 引用本文： | 郑涛,刘敏,董淑惠. 基于故障相并联补偿电流变化特征的单相自适应重合闸[J]. 电力系统自动化, 2011, 35(10): 74-78 |
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| 作者姓名： | 郑涛 刘敏 董淑惠 |
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| 作者单位： | 1. 新能源电力系统国家重点实验室(华北电力大学),北京市,102206
2. 华北电力大学电气与电子工程学院,河北省保定市,071003 |
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| 基金项目： | 国家自然科学基金重点项目（50837002） |
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| 摘 要： | 针对带并联电抗器的超高压输电线路,详细分析了发生单相瞬时及永久性故障时,故障相并联补偿电流自由分量的故障特征,并在此基础上提出一种利用并联补偿电流自由分量的变化特征进行故障识别的单相自适应重合闸新判据.永久性故障时,故障点一直存在,并联电抗器通过线路和故障点对地放电,自由分量呈现衰减趋唠;瞬时性故障时,二次电弧的熄灭和...
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| 关 键 词： | 单相自适应重合闸 二次电弧 自由分量 拍频特性 并联电抗器 |
| 收稿时间： | 2010-10-14 |
| 修稿时间： | 2011-05-09 |
Single-phase Adaptive Reclosure Based on Variation Trend of Decaying Components of Fault Phase Shunt Reactor Currents |
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| ZHENG Tao,LIU Min,DONG Shuhui. Single-phase Adaptive Reclosure Based on Variation Trend of Decaying Components of Fault Phase Shunt Reactor Currents[J]. Automation of Electric Power Systems, 2011, 35(10): 74-78 |
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| Authors: | ZHENG Tao LIU Min DONG Shuhui |
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| Affiliation: | ZHENG Tao1,LIU Min1,DONG Shuhui2(1.State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China,2.North China Electric Power University,Baoding 071003,China) |
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| Abstract: | By analyzing the characteristic of decaying component of the fault phase shunt reactor current under different type of faults,a new criterion for single-phase adaptive reclosure is proposed.In this method,fault type can be identified through different variation trends of the decaying component.When permanent fault occurs,the energy of the shunt reactor will be discharged to earth through the fault point,so the decaying component will degrade to zero gradually;When transient fault occurs,the extinction and r... |
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| Keywords: | single-phase adaptive reclosure secondary arc decaying component beat frequency phenomenon shunt reactor |
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