摘要
结合实际运行的地铁线路、车辆电气参数,重点研究了整流机组电气特性,提出基于整流机组外特性的地铁车辆短路电流的计算方法,建立"变电所-牵引网-地铁车辆"模型并进行了仿真分析,得出地铁车辆短路暂态过程计算结果与仿真对比,波形误差小于5%。对实际运行工况进行应用分析,结果表明,模型计算可校验"车-网"保护配置的可靠性。研究工作为选择直流快速断路器、确定系统保护配置以及评估系统供电能力提供理论依据及数据支持。
Combined with the actual metro line and vehicle electric parameters, the electrical characteristics of rectifier unit was analyzed in detail and the calculation method of short-circuit current occurring on the metro vehicle was proposed based on the external characteristics of rectifier unit. The substation-traction network-metro vehicle model was established and simulated. The short circuit transient process of metro vehicle was obtained. The comparison between the two results showed that the waveform error was less than 5%. The application analysis of the actual operating conditions shows that the calculation can verify the reliability of the vehicle-network protection configuration. The research work provides theoretical basis and data support for selecting DC fast circuit breaker, determining system protection configuration and evaluating power supply capability.
作者
孙磊
吴命利
孙继星
郝紫惠
潘磊
李天册
SUN Lei;WU Mingli;SUN Jixing;HAO Zihui;PAN Lei;LI Tiance(School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)
出处
《机车电传动》
北大核心
2019年第5期105-110,128,共7页
Electric Drive for Locomotives
基金
中央高校基本科研业务费专项资金资助项目(2018JBZ101)
关键词
地铁车辆
整流机组
外特性
短路电流
车-网-所模型
仿真分析
metro vehicle
rectifier unit
external characteristics
short-circuit current
the substation-traction network-metro vehicle simulation model
simulation analysis
