摘要
依据阻抗匹配平衡变压器的结构特点和电磁变换关系,以电磁暂态仿真软件EMTDC中的统一电磁等值电路(UMEC)变压器模型为基础,构建了电气化铁路牵引供电系统模型。通过对该模型在正常运行状态、故障状态以及空载合闸励磁涌流等状况下进行的大量仿真,详细分析了阻抗匹配平衡变压器在各种运行状态下的电气量波形特点和谐波特性。仿真结果为研究开发适合该变压器的继电保护原理和设备提供可靠依据。
According to the structure and electromagnetic transformation relationship of IMBT （Impedance- Matched Balancing Transformer）,a traction power supply system model of electric railway is built based on the UMEC（Unified Magnetic Equivalent Circuit） transformer model of EMTDC. Simulations are carried out on the model under normal condition,faulty condition,magnetizing inrush condition,and so on. The electrical waveforms and harmonic contents of IMBT under various conditions are analyzed. Simulation results provide dependable basis for the research and design of protection for IMBT.
出处
《电力自动化设备》
EI
CSCD
北大核心
2008年第8期113-117,共5页
Electric Power Automation Equipment
关键词
阻抗匹配平衡变压器
EMTDC
牵引供电系统
励磁涌流
impedance- matched balancing transformer
EMTDC
traction power supply system
magnetizing inrush
