基于YN,3d-1变压器的同相AT牵引供电系统  

A Cophase AT Traction Power Supply System Based on YN, 3d -1 Transformer

作　　者：唐学林 张秀峰[2] 林贞礼[2] 

机构地区：[1]南京地下铁道有限责任公司运营分公司,江苏南京210012 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《大功率变流技术》2010年第2期43-48,共6页HIGH POWER CONVERTER TECHNOLOGY

基　　金：国家科技支撑计划资助项目(2007BAA12B05)

摘　　要：提出了基于YN,3d-1变压器并结合两单相变流器和自耦变压器(AT)的供电方式。它实现了同相牵引供电,牵引变电所一次侧不再轮换,变电所单相供电,不用设置分相绝缘器;通过实时检测系统的综合补偿电流控制变流器,平衡三相,动态滤除无功和谐波电流。讨论了其补偿原理,给出了指令电流检测和变流器控制方法。分析和仿真证明,该同相供电系统是可行的。It presents a power supply method based on YN, 3d - 1 transformer, which combines with two single- phase converters and an autotransformer （AT）. It achieves the cophase traction power supply. The primary side of traction substation will not be exchanged anymore, and the single phase power supply is applied without setting any neutral section insulator. The converter is controlled by comprehensive compensating current of real time detecting system, so that the three-phase is balanced, and the reactive and harmonics currents are filtered dynamically. Furthermore, the compensating principle is discussed, and then the methods of directive current deteGtion together with control of converters are given. The analyses and simulations show that the system is feasible.

关 键 词：YN 3d—1变压器 自耦变压器供电方式 同相供牵引供电 变流器 补偿原理 

分 类 号：TM714[电气工程—电力系统及自动化]