市域铁路贯通同相供电系统继电保护方案配置  

Configuration of Relay Protection Scheme for Continuous Co-phase Power Supply System of Suburban Railways

作　　者：李鲲鹏[1,2] 钟帆 赵云云 冯超 易东 LI Kunpeng;ZHONG Fan;ZHAO Yunyun;FENG Chao;YI Dong(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,China;Guangzhou Metro Design&Research Institute Co.,Ltd.,Guangzhou 510010,China)

机构地区：[1]西南交通大学电气工程学院,成都611756 [2]广州地铁设计研究院股份有限公司,广州510010

出　　处：《铁道标准设计》2023年第8期160-166,共7页Railway Standard Design

基　　金：国家自然科学基金项目(51877182)。

摘　　要：针对市域铁路高客流量、高可靠性的要求,对市域铁路采用贯通同相供电方式中的组合式同相供电+分区所双边供电方案进行研究。根据该方案拓扑结构进行数学建模,对牵引变电所高压侧及牵引网不同位置进行短路故障分析,以某市域线路为例,对系统中不同位置的母线发生短路进行仿真分析。研究得出以下结论:当牵引供电系统发生故障时,需配置牵引供电系统的保护方案;而电力系统发生故障时,电力系统继电保护装置的动作不会受到影响,因此,无需调整电力系统的继电保护配置,验证了理论分析的正确性。根据故障分析结果,在传统继电保护方案上进行改进,配置继电保护新方案以确保市域铁路实施贯通同相供电运行的安全稳定。Aiming at the requirements of high passenger flow and high reliability of urban railways,the combined co-phase power supply+bilateral power supply scheme of substations in the mode of continuous co-phase power supply are studied for suburban railways.Mathematical modeling is carried out according to the topology of the scheme.Short-circuit fault analysis is conducted at different locations.With reference to a city line,the simulation analysis of short-circuits on busbars at different locations in the system is performed,and the conclusion is drawn:when the traction power supply system goes wrong,the scheme of the traction power supply system needs to be configured;when the power system fails,the action of the power system relay protection device will not be affected,so there is no need to adjust the relay protection configuration of the power system,which verifies the correctness of the theoretical analysis.According to the fault analysis results,the traditional relay protection scheme is improved,and a new relay protection scheme is configured to ensure the safety and stability of the continuous co-phase power supply of suburban railways.

关 键 词：市域铁路 贯通同相供电 继电保护 短路分析 电力系统 

分 类 号：U239.5[交通运输工程—道路与铁道工程] TM922.3[电气工程—电力电子与电力传动]