| 引用本文: | 林晓鸿,林圣,温曼越,孙建明.电气化铁路电力贯通线无通道保护方案[J].电力自动化设备,2018,(9): |
| LIN Xiaohong,LIN Sheng,WEN Manyue,SUN Jianming.Non-communication protection scheme for electric railroad power transmission line[J].Electric Power Automation Equipment,2018,(9): |
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| 摘要: |
| 为了实现通信条件不发达国家和地区电气化铁路电力贯通线路故障的快速切除与隔离，提出了一种不依赖通信通道的电气化铁路电力贯通线无通道保护方案。在分析传统无通道保护方案在铁路电力贯通线适应性的基础上，利用单端故障测距技术，加速电力贯通线路中段保护动作，解决了在铁路电力贯通长线路中段故障时，采用传统无通道保护导致故障切除时间过长的问题。根据铁路电力贯通线“双电源结构单端供电运行”的特点，提出了适用的改进无通道保护方案。仿真分析表明，该保护方案能够不依赖于通信信道进行铁路电力贯通线全线故障的快速切除与隔离，有助于解决通信技术欠发达国家和地区的铁路电力贯通线路的故障隔离问题，有效提高铁路电力贯通线供电可靠性。 |
| 关键词: 铁路 无通道保护 电力贯通线 故障测距 故障切除与隔离 不对称故障 |
| DOI：10.16081/j.issn.1006-6047.2018.09.031 |
| 分类号:U224.4 |
| 基金项目:中国铁路总公司科技研究开发计划(2016J010-A)；珠海轨道交通健康运营协同创新中心资助项目(55560307) |
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| Non-communication protection scheme for electric railroad power transmission line |
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LIN Xiaohong1, LIN Sheng1, WEN Manyue2, SUN Jianming2
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1.School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China;2.China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063, China
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| Abstract: |
| In order to realize the failure removal and isolation of the ERPTL(Electric Railroad Power Transmission Line) in the countries and regions with poor communication conditions, a method of non-communication protection scheme for ERPTL is proposed. Based on the analysis of the adaptability of the traditional non-communication protection scheme for ERPTL, the single-terminal fault location technology is used to accelerate the protection action in the middle section of ERPTL, which solves the problem of long fault removal time of the traditional non-communication protection when fault occurs in the middle section of the long ERPTL. The scheme of the improved non-communication protection is proposed according to the ERPTL characteristic of “single supply operation of dual-power-supply structure”. The simulative results show that being independent of the communication channel, the proposed protection scheme can realize rapid fault removal and isolation of ERPTL. It can help to solve the fault isolation problem of ERPTL in the countries and regions with poor communication conditions and improve the power supply reliability of ERPTL. |
| Key words: railroads non-communication protection power transmission line electric fault location fault removal and isolation asymmetric fault |
