电力机车双电压直供电系统研发与应用  

Research and application of dual-voltage direct supply system for electric locomotives

作　　者：宋玉坤 SONG Yukun(Equipment Supervision Department of China Railway Shenyang Group Co.,Ld.,Shenyang 110165,China)

机构地区：[1]中国铁路沈阳局集团有限公司设备监造部,辽宁沈阳110165

出　　处：《铁道机车与动车》2023年第10期35-39,I0002,共6页Railway Locomotive and Motor Car

摘　　要：根据存量AC380 V制式客车和增量冷链运输需求,在既有电力机车DC600 V供电制式的基础上研发了具备DC600 V及AC380 V两种供电制式的双电压直供电系统。介绍了供电系统的电路拓扑、冗余方式、适应不同负载的供电连接器、2种供电电压根据负载类型的切换方式、供电制式的安全联锁、不同负载模式的接地保护和检测、供电保护等设计方案,双电压列车供电系统已通过性能试验验证。Based on the existing AC380 V standard passenger cars and incremental cold chain transportation needs,a dual-voltage direct power supply system with two power supply modes of DC600 V and AC380 V has been developed on the basis of the existing DC600 V power supply mode for electric locomotives.The paper introduces the design schemes of circuit topology,redundancy mode,power supply connectors suitable for different loads,two switching modes of power supply voltage based on load type,safety interlocking of power supply mode,grounding protection and detection of different load modes,power supply protection,etc.The dual-voltage head-end power system has been verified through performance tests.

关 键 词：电力机车 列车供电 双电压输出 接地检测 供电切换 试验 

分 类 号：U264.56[机械工程—车辆工程]