| 铁路自闭贯通线架空线-电缆混合线路行波测距 |
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| 引用本文： | 何正友,杨建维,周超,罗国敏. 铁路自闭贯通线架空线-电缆混合线路行波测距[J]. 大连海事大学学报(自然科学版), 2007, 33(3): 46-50 |
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| 作者姓名： | 何正友 杨建维 周超 罗国敏 |
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| 作者单位： | 西南交通大学,电气工程学院,成都,610031;西南交通大学,电气工程学院,成都,610031;西南交通大学,电气工程学院,成都,610031;西南交通大学,电气工程学院,成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目(50407009)，四川省杰出青年基金资助项目(06ZQ026-012)，教育部优秀新世纪人才支持计划资助项目(NCET-06-0799) |
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| 摘 要： | 为解决铁路自闭贯通线架空线-电缆混合线路波速度不一致难以精确测距的问题,在分析混合线路连接点处行波传播特点的基础上,提出了基于时间差搜索的双端行波测距方法.利用连接点处行波到达线路两端时间差的不同来确定故障发生在线路中的区段和相应的波速度,再进行精确测距.基于PSCAD/EMTDC对自闭贯通线混合线路建模,并利用小波变换及模极大值检测理论提取行波波头进行分析.仿真结果表明,该方法对于架空线-电缆的混合线路是可行的.
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| 关 键 词： | 铁路自闭贯通线 架空线-电缆混合线路 时间差搜索 行波 故障测距 |
| 文章编号： | 1006-7736（2007）03-0046-05 |
| 修稿时间： | 2007-07-05 |
Study on travelling wave fault location for overhead line combined with cable in railway automatic and continuous transmission line |
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| HE Zheng-you,YANG Jian-wei,ZHOU Chao,LUO Guo-min. Study on travelling wave fault location for overhead line combined with cable in railway automatic and continuous transmission line[J]. Journal of Dalian Maritime University, 2007, 33(3): 46-50 |
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| Authors: | HE Zheng-you YANG Jian-wei ZHOU Chao LUO Guo-min |
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| Affiliation: | School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | In railway automatic blocking and continuous transmission lines(RABCTL),accurate fault location of overhead lines combined with cable is hampered by different wave speed.A double-ended method of travelling wave fault location based on timedifference-search was developed after analyzing travelling wave transmission at hybrid line joints.The method determined fault zone and wave speed by different time when travelling wave reached line ends,and then got accurate fault distance.A power system computer aid design(PSCAD)/electro-magnetic transient in DC system(EMTDC) model of hybrid line in RABCTL was given,and travelling wave heads were picked up and analyzed by wavelet transform and modulus maximum method.Simulation result shows that the proposed method is feasible. |
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| Keywords: | railway automatic blocking and continuous transmission lines(RABCTL) overhead lines combined with cable time-difference-search travelling wave fault location |
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