| 机车牵引变压器空载合闸励磁涌流特性分析 |
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| 引用本文： | 曾耀吾,李晓松,陈萌,张颜,伍新,安正洲.机车牵引变压器空载合闸励磁涌流特性分析[J].电力科学与技术学报,2013(4):19-23,30. |
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| 作者姓名： | 曾耀吾 李晓松 陈萌 张颜 伍新 安正洲 |
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| 作者单位： | [1]长沙理工大学电气与信息工程学院,湖南长沙410004 [2]株洲南车电机股份公司,湖南株洲412001 |
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| 基金项目： | 基金项目：湖南省自然科学基金（10JJ5048） |
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| 摘 要： | 由于电力机车变压器铁芯的非线性特性及绕组中残留的剩磁，空载合闸时一次绕组易产生很大的励磁涌流．数学模拟分析变压器空载合闸的瞬态过程，基于MATLAB／sIMULINK建立电力机车主变压器空载合闸的仿真模型，分析剩磁以及磁通对励磁涌流的影响．仿真结果与理论相吻合，为电力机车主变压器的保护、电磁设计与运行提供了重要的理论依据．
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| 关 键 词： | 电力机车主变压器 空载合闸 励磁涌流 剩磁 |
Magnetizing inrush current characteristics of locomotive traction transformer no-load switching |
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| ZENG Yao-wu,LI Xiao-song,CHEN Meng,ZHAN Yan,WU Xin,AN Zheng-zhou.Magnetizing inrush current characteristics of locomotive traction transformer no-load switching[J].JOurnal of Electric Power Science And Technology,2013(4):19-23,30. |
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| Authors: | ZENG Yao-wu LI Xiao-song CHEN Meng ZHAN Yan WU Xin AN Zheng-zhou |
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| Affiliation: | 1. School of Electrical and Information Engineering, Changsha University of Science and Technology,Changsha 410004,China 2. CSR Electric Motor Co. , Ltd. , Zhuzhou 412001 ,China) |
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| Abstract: | An electric locomotives transformer will produce huge magnetizing inrush current in the primary winding because of nonlinear characteristics of iron cores and residual magnetism of winds during no-load closing. In order to analyze the effects of residual magnetism and magnetic field on magnetizing inrush current, the mathematical model of relatively complex transient process was analyzed, and a simulation model for main transformers of electric locomotive was established by MATLAB/SIMULINK in this paper. The simulation results consist with the the- ory, which provide significant theoretical basis for the protection of main transformers of electric locomotives and electromagnetic design and its operation system. |
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| Keywords: | transformers of electric locomotives unload switched-on magnetizing inrush current residual flux |
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