| 超高压有并联电抗器线路无故障重合闸研究 |
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| 引用本文： | 陆岩,郑玉平,沈军,吴通华,张哲,李九虎,曹小拐. 超高压有并联电抗器线路无故障重合闸研究[J]. 电力系统自动化, 2008, 32(6): 76-80 |
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| 作者姓名： | 陆岩 郑玉平 沈军 吴通华 张哲 李九虎 曹小拐 |
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| 作者单位： | 南方电网超高压局输变电公司,广东省广州市,510620;南京南瑞继保电气有限公司,江苏省南京市,211100;南方电网超高压局输变电公司广州局,广东省广州市,510000 |
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| 摘 要： | 针对带并联电抗器的超高压线路,分析了故障跳开相恢复电压公式,详细推导了故障跳开相恢复电压的工频分量幅值、自由分量幅值及自由分量频率,理论分析及EMTDC仿真实验证明了推导结果的正确性,基于此提出采用恢复电压的拍频特性作为无故障判据,该无故障识别方法具有很强的实用性,为带并联电抗器输电线路采用单相自适应重合闸提供了一种非常简单可靠的方案。
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| 关 键 词： | 超高压输电线路 自适应重合闸 并联电抗器 恢复电压 拍频特性 |
| 收稿时间： | 2007-09-20 |
| 修稿时间： | 2008-03-07 |
Research on Adaptive Reclosure of EHV Transmission Lines with Shunt Reactors |
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| LU Yan,ZHENG Yuping,SHEN Jun,WU Tonghu,ZHANG Zhe,LI Jiuhu,CAO Xiaoguai. Research on Adaptive Reclosure of EHV Transmission Lines with Shunt Reactors[J]. Automation of Electric Power Systems, 2008, 32(6): 76-80 |
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| Authors: | LU Yan ZHENG Yuping SHEN Jun WU Tonghu ZHANG Zhe LI Jiuhu CAO Xiaoguai |
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| Abstract: | This paper analyzes the voltage characteristics of the faulted phase for EHV transmission lines with shunt reactor, as well as the power frequency component, low frequency component, and the frequency of free component. A new criterion using the beat frequency characteristics is proposed, which can distinguish the temporary faults from permanent faults perfectly. Theoretical analysis and EMTDC simulation tests show that this novel criterion is correct and practical, which provides a simple and reliable method for the realization of single-pole adaptive reclosure. |
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| Keywords: | EHV transmission line adaptive reclosure shunt reactor recovery voltage beat frequency |
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