Scheme for Naturally Passing Neutral Sections of High Speed Railways
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摘要: 在深入研究机车带负荷过分相产生电弧机理的基础上,提出了自然过分相技术方案.该方案的基本原理是在车载变压器高压侧和牵引供电臂末端分别并联一个电容,当机车过分相时,牵引网和车载电气传动系统实现等电位分离,避免了机车过分相时产生电弧.自然过分相方案和现在使用的3种方案相比,具有过分相断电时间短,结构简单,投资少,运行维护量小等优点.自然过分相方案还能大幅度降低机车运行时离线电弧的强度.Abstract: A scheme of naturally passing neutral sections was proposed based on the mechanism of arcing when a train passes the neutral section.In the scheme,a shunt capacitor is connected to both the pantograph and the high voltage winding of the transformer on board.When the locomotive passes the neutral section,there is no arcing because the electric traction system on board has the same potential as that of the catenary.Compared with 3 existing schemes for passing neutral sections,the proposed one is shorter in power-off time,simpler in configuration,and less in investment and maintenance.It also reduces arc intensity significantly when the pantograph bounces on the contact wire.
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Key words:
- passing neutral section /
- arc /
- pantograph /
- catenary /
- scheme
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孙万启,单圣熊,郑国藩.国内外自动过分相装置的比较[J].电气化铁路,2002(2):12-16.[2] 侯文葳,刘宝锟.广深铁路200(km·h-1)电气化新技术[J].中国铁道科学,2001,22(4):139-140.HOU Wenwei.LIU Baokun.New technologies for the 200(km·h-1)Guangzhou-Shenzhen electrified railway[J].China Railway Science,2001,22(4):139-140.[3] 严云升.电力机车自动过分相方案的探讨[J].机车电传动,1999(4):1-3.[4] 严云升.电力机车和电动车组自动过分相方案的发展方向[J].机车电传动,2004(10):7-10.YAN Yunsheng.Development trend of the scheme of auto-passing phase separations for electric locomotive and EMUs[J].Electric Drive for Locomotives,2004(10):7-10.[5] 董志杰.地面自动过分相技术及方案研究[D].成都:西南交通大学,2004.[6] 钮承新,耿杰.电气化铁路网上断载电力机车自动过分相装置研究与试验[J].继电器,2001,29(12):55-57.NIU Chengxin,GENG Jie.Research and test on the device of switched-off locomotive passing through the phase-separation insulator automatically in railroad[J].Relay,2001,29(12):55-57.[7] 郭保青,余祖俊,许西宁,等.仿人控制的电力机车自动过分相装置研究[J].铁道学报,2002,24(6):20-23.GUO Baoqing,YU Zujun,XU Xining,et al.Design of automatic splitting phase device for electrical locomotives based on apery control[J].Journal of the China Railway Society,2002,24(6):20-3.[8] 郭保青,余祖俊,唐涛.冗余结构的电力机车自动过分相方案设计[J].北京交通大学学报,2006,30(5):88-91.GUO Baoqing,YU Zujun,TANG Tao.Redundant design of auto-passing phase separations for electric locomotive[J].Journal of Beijing Jiaotong University,2006,30(5):88-91.[9] 戴利民,林吉忠,丁新华.滑板材料受流摩擦时接触点瞬态温升对磨损性能的影响[J].中国铁道科学,2002,23(2):111-117.DAI Limin,LIN Jizhong,DING Xinhua.Effects of transient temperature risein contact areaon wear properties[J].China Railway Science,2002,23(2):111-117.[10] 戴利民,林吉忠,刘越,等.受电弓滑板受流摩擦中体温升的模拟计算分析[J].铁道学报,2002,24(5):56-61.DM Limin,LIN Jizhon1,LIU Yue,et al.Calculation and study on strip cubage temperature of pantograph pan in sliding electric contact abrasion[J].Journal of the China Railway Society,2002,24(5):56-61.
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