Difficulties in Parameters Identification of Traction Transformer Multi-port Equivalent Scheme with Hidden Construction Defect  

作　　者：Marek Dudzik Andrzej Kobielski Ireneusz Chrabaszcz Janusz Prusak Siawomir Drapik 

机构地区：[1]Traction and Traffic Control Division, Cracow University of Technology, Cracow 31-155, Poland [2]Institute of Rail Vehicles, Cracow University of Technology, Cracow 31-864, Poland [3]ZUE S.A., Cracow 30-048, Poland

出　　处：《Journal of Energy and Power Engineering》2013年第6期1186-1191,共6页能源与动力工程（美国大卫英文）

摘　　要：While modeling a power supply system for an electric railway traction, knowing equivalent circuits of locomotives supplied this way is an essential issue. In alternating current traction, it is important to diagnose inter alia processes taking place in transformers installed on electric vehicles. This article presents specific phenomena occurring during the work of mono-phase, multi-winding, multisystem （systems AC： 50 Hz, 16.7 Hz） laboratory traction transformer. It also shows difficulties encountered during the process of identifying multi-port equivalent scheme＇s elements of the described device, in which a construction defect occurs.

关 键 词：Traction transformer multi-winding transformer transformer＇s defects transformer＇s multi-port equivalent scheme. 

分 类 号：TN702[电子电信—电路与系统] TM922.73[电气工程—电力电子与电力传动]