融通型牵引供电系统变压器负荷电流特性研究  

Study on Characteristics of Load Current of Transformer of Fusion Type Traction Power Supply System

作　　者：陈洪进 韩正庆[1] 吴游龙 CHEN Hongjin;HAN Zhengqing;WU Youlong

机构地区：[1]西南交通大学电气工程学院

出　　处：《电气化铁道》2024年第4期1-5,36,共6页Electric Railway

基　　金：国家重点研发计划课题“‘网-源-储-车’协同的高效能与高弹性轨道交通能源自洽技术”(2021YFB2601502)。

摘　　要：铁路功率调节器RPC是一种电能质量补偿设备,采用该装置的融通型牵引供电系统供电结构能够实现能量互联,并为低碳供能提供新的可能性。为提高融通型牵引供电系统中牵引变压器供电的安全性和可靠性,提出一种综合考虑RPC不同容量的变压器最大负荷计算方法。基于系统拓扑结构分析RPC接入后牵引变压器负荷电流特性,得出精确计算最大负荷电流的必要性,并结合RPC不同容量下的补偿度推导变压器低压侧最大负荷电流的计算式,最后仿真验证计算式的正确性。The railway power conditioner(RPC)is an electrical energy quality compensation device,and the power supply structure of the fusion type traction power supply system with application of this device is able to achieve energy interconnection and provide new possibilities for low-carbon energy supply.For improvement of the safety and reliability of traction transformer power supply in the fusion type traction power supply system,a comprehensive calculation method for the maximum load of transformers considering different RPC capacities is proposed.Based on the system topology analysis of the load current characteristics of the traction transformer after connection of RPC,the necessity of accurately calculating the maximum load current is determined.The calculation formula for the maximum load current on the low-voltage side of the transformer is derived by combining the compensation degree under different capacities of RPC.And finally,the correctness of the calculation formula is verified through simulation.

关 键 词：融通型牵引供电系统 RPC 电流特性 最大负荷电流 

分 类 号：U223.5[交通运输工程—道路与铁道工程]