| 引用本文: | 宋小翠,刘志刚,王 英.基于ATP-EMTP的计及高架桥高速铁路过分相电磁暂态研究[J].电力系统保护与控制,2016,44(13):6-13. |
| SONG Xiaocui,LIU Zhigang,WANG Ying.Study on electromagnetic transient process in split-phase insulator considering viaduct’s electrical coupling based on ATP-EMTP[J].Power System Protection and Control,2016,44(13):6-13 |
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| 摘要: |
| 鉴于高速铁路牵引供电系统的线路大量铺设于高架桥上，尝试考虑高架桥桥墩回路与牵引网间的电气耦合对高速列车过分相电磁暂态影响的研究，对行进中的高速列车运行安全具有重要的意义。首先建立了牵引供电回路及高架桥桥墩回路的等效模型。其次重点分析和求取了高架桥桥墩耦合系数和各个电气参数。最后利用ATP-EMTP搭建高速列车过分相各暂态过程的车-网-桥耦合集中参数模型。仿真对比分析了计及高架桥和无高架桥高速列车过分相中的电磁暂态过程及其影响因素。仿真结果和对比分析表明，高架桥回路为过分相的高频暂态分量提供有效泄流通道，明显降低了高速列车弓头过电压幅值。 |
| 关键词: 高速铁路 高架桥 自动过分相 ATP-EMTP 过电压 |
| DOI：10.7667/PSPC151366 |
| 分类号: |
| 基金项目:国家自然科学基金高铁联合基金重点项目(U1434203，U1134205);国家自然科学基金(51377136) |
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| Study on electromagnetic transient process in split-phase insulator considering viaduct’s electrical coupling based on ATP-EMTP |
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SONG Xiaocui,LIU Zhigang,WANG Ying
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(School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China)
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| Abstract: |
| Considering viaduct pier and traction network’s electrical coupling, this paper focuses on the study of electromagnetic transient effect for electric multiple unit (EMU) passing split-phase insulator, which has important significant to the operation safety of EMU, since the traction lines of HSR (high-speed railway) power traction system are mostly laid on viaduct. Firstly, equivalent circuit model including traction power supply circuit and viaduct pier loop circuit is established. Secondly, this paper analyzes and solves the coupling coefficient of viaduct pier and various electrical parameters. Thirdly, the vehicle-catenary-viaduct coupling lumped parameter model regarding each transient process for EMU passing split-phase insulator is built by ATP-EMTP. Finally, the corresponding electromagnetic transient processes, which respectively consider viaduct or not, are simulated, and their influencing factors are analyzed in detail. The simulation results indicate that the viaduct looped circuit provides with effective discharge channel to weaken the over-voltage amplitude obviously. This work is supported by National Natural Science Foundation of China (No. U1434203, No. U1134205 and No. 51377136). |
| Key words: high-speed railway viaduct automatic phase separation ATP-EMTP over-voltage |
