V/V接线形式的铁路牵引变压器运行特性分析
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摘要
采用V/V接线形式的铁路牵引变压器是铁路牵引系统的重要设备。本文介绍了V/V接线变压器的特点,在此基础上建立了变压器的数学模型,得到了其变压器的统一状态方程;分析了在正常工作、对地短路、输出侧开路等运行工况下,变压器数学模型及其状态方程的相应变化,以及特征阻抗的匹配关系,讨论了状态方程的变化与变压器实际工作状况的关联,最后在MATLAB中进行了仿真分析,仿真的结果与V/V变压器空间状态方程的变动情况相符合,为V/V牵引变压器的工况分析提供了新的思路。
V/V traction transformer is a important equipment during railway traction system. The paper introduces the features of V/V traction transformer at first. And then, the mathematic model are established and the common equation of state is listed out. The running conditions of transformer as normal operation, earth fault condition and output side open circuit, etc are analysised. And the changes of the mathematical model and state equation, the characteristics impedance matching relationship are analysised under those running conditions. The connections of the changes of state equation and actual working conditions of V/V traction transformer are discussed. At last, the simulation analysis are made in MATLAB. The results of the simulation equate with the features of V/V traction transformer.It provides a new way for condition analysis of V/V traction transformer.
V/V traction transformer is a important equipment during railway traction system. The paper introduces the features of V/V traction transformer at first. And then, the mathematic model are established and the common equation of state is listed out. The running conditions of transformer as normal operation, earth fault condition and output side open circuit, etc are analysised. And the changes of the mathematical model and state equation, the characteristics impedance matching relationship are analysised under those running conditions. The connections of the changes of state equation and actual working conditions of V/V traction transformer are discussed. At last, the simulation analysis are made in MATLAB. The results of the simulation equate with the features of V/V traction transformer.It provides a new way for condition analysis of V/V traction transformer.
引文
[1]符德川.三相V/V接线牵引变压器的应用[J].铁道机车车辆,1999,(4):25-28.
[2]潘翀.电力变压器绝缘故障诊断技术及热状态参量预测模型研究[D].重庆:重庆大学,2009.
[3]韦国,闵英杰,周得军等.V/X接线牵引变压器的温升特性[J].中国铁道科学,2011,32(3):80-84.
[4]陈邦达.电气化铁路供电若干问题的探讨[J].湖北电力,2007,31(1):21-23.
[5]楚振宇,吴命利,张劲等.三相V/V接线单相I/I接线牵引变压器的组合应用[J].铁道学报,2007,29(1):109-104.
[6]冯存亮,葛宝亮,毕大强.三相V/V牵引变压器励磁涌流的识别[J].铁道学报,2011,33(6):35-40.
[7]BOGDAN KASZTENNY,MLADEN KEZUNOVIC.Digital Relays Improve Protection of Large Trans formers.IEEE Computer Applications in Power,1998,114,11(4):39-45.
[8]姜东杰,王师昂.CRH3型高速动车组牵引变压器励磁渗流仿真研究[J].机车电传动,2011,(1):14-16
[9]吴命利,范瑜,辛成山.Scott接线牵引变压器运行特性与等值模型研究[J].电工技术报,2003,(4):75-80
[10]张弘,宁康红,虞海泓.220kV三相V/V接线一体化牵引变压器的研究应用[J].电力建设,2008,29(3):22-24.
[11]林国松,李群湛.Scott变压器差动保护电流互感器接线方式分析[J].电力系统及其自动化学报,2007,19(4):37-40.
[12]BRONZEADO H S,BROGAN P B,YACAMINIR.Harmonic Analysis of Transient Currents During Sympathetic Interaction[J].IEEE Trans onPower Ststems,1996,11(4):2051-2056.
[13]杨卫国,邵周杰,许江.V/V不等容牵引变压器保护方案及应用[J].电气化铁道,2004,(6):9-12.
[14]辜承林,陈乔夫,熊永前.电机学[M].武汉:华中科技大学出版社,2010.
[15]赵明旺,王杰,江卫华.现代控制理论[M].武汉:华中科技大学出版社,2007.
[16]许加柱,白俊锋,赵志宇等.一种改进型Vv牵引变压器及其牵引供电系统仿真研究[J].高压电气,2010,46(8):43-47.
[2]潘翀.电力变压器绝缘故障诊断技术及热状态参量预测模型研究[D].重庆:重庆大学,2009.
[3]韦国,闵英杰,周得军等.V/X接线牵引变压器的温升特性[J].中国铁道科学,2011,32(3):80-84.
[4]陈邦达.电气化铁路供电若干问题的探讨[J].湖北电力,2007,31(1):21-23.
[5]楚振宇,吴命利,张劲等.三相V/V接线单相I/I接线牵引变压器的组合应用[J].铁道学报,2007,29(1):109-104.
[6]冯存亮,葛宝亮,毕大强.三相V/V牵引变压器励磁涌流的识别[J].铁道学报,2011,33(6):35-40.
[7]BOGDAN KASZTENNY,MLADEN KEZUNOVIC.Digital Relays Improve Protection of Large Trans formers.IEEE Computer Applications in Power,1998,114,11(4):39-45.
[8]姜东杰,王师昂.CRH3型高速动车组牵引变压器励磁渗流仿真研究[J].机车电传动,2011,(1):14-16
[9]吴命利,范瑜,辛成山.Scott接线牵引变压器运行特性与等值模型研究[J].电工技术报,2003,(4):75-80
[10]张弘,宁康红,虞海泓.220kV三相V/V接线一体化牵引变压器的研究应用[J].电力建设,2008,29(3):22-24.
[11]林国松,李群湛.Scott变压器差动保护电流互感器接线方式分析[J].电力系统及其自动化学报,2007,19(4):37-40.
[12]BRONZEADO H S,BROGAN P B,YACAMINIR.Harmonic Analysis of Transient Currents During Sympathetic Interaction[J].IEEE Trans onPower Ststems,1996,11(4):2051-2056.
[13]杨卫国,邵周杰,许江.V/V不等容牵引变压器保护方案及应用[J].电气化铁道,2004,(6):9-12.
[14]辜承林,陈乔夫,熊永前.电机学[M].武汉:华中科技大学出版社,2010.
[15]赵明旺,王杰,江卫华.现代控制理论[M].武汉:华中科技大学出版社,2007.
[16]许加柱,白俊锋,赵志宇等.一种改进型Vv牵引变压器及其牵引供电系统仿真研究[J].高压电气,2010,46(8):43-47.