| 机车与牵引网间的铁磁谐振分析 |
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| 引用本文： | 张雪原. 机车与牵引网间的铁磁谐振分析[J]. 铁道工程学报, 2011, 0(3): 81-85,99 |
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| 作者姓名： | 张雪原 |
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| 作者单位： | 成都信息工程学院,成都,610075 |
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| 摘 要： | 研究目的:在铁磁谐振过电压的分析计算中,选取指数函数提高磁化曲线在非线性段的拟合精度,从而保证铁磁谐振过电压分析的准确性,为分析牵引供电系统铁磁谐振产生机理和寻找消除铁磁谐振过电压措施理论依据。研究结论:本文通过数值计算和媒质磁化理论分析,证明在带铁心的电感中存在饱和励磁电感现象,饱和励磁电感是铁磁谐振形成的主要原因,同时饱和励磁电感和回路电容决定了铁磁谐振的频率;谐波电压源对铁磁谐振回路进行间歇性激励,形成铁磁谐振过电压。
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| 关 键 词： | 铁磁谐振 磁化曲线 拟合函数 电网 |
Analysis of Ferro-resonance between Traction Electric Network and Locomotive |
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| ZHANG Xue-yuan. Analysis of Ferro-resonance between Traction Electric Network and Locomotive[J]. Journal of Railway Engineering Society, 2011, 0(3): 81-85,99 |
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| Authors: | ZHANG Xue-yuan |
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| Affiliation: | ZHANG Xue-yuan (Chegndu University of Information Technology,Chengdu 610075,China) |
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| Abstract: | Research purposes:The fitting precision in the non-linear interval of magnetization curve can be improved to ensure the analysis precision of the over-voltage of ferro-resonance if the fitting exponential function is selected in the analysis and calculation of the ferro-resonance.It can provide the theoretic basis for analysis of the mechanism of generating ferro-resonance in traction electric network and finding the measures for eliminating the over-voltage of ferro-resonance. Research conclusions:The resu... |
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| Keywords: | ferro-resonance magnetization curve fitting expotential funtion power grid |
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