| 无限大容量供电系统三相短路电流分析 |
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| 引用本文： | 金轶锋.无限大容量供电系统三相短路电流分析[J].渭南师范学院学报,2011(12):38-41. |
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| 作者姓名： | 金轶锋 |
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| 作者单位： | 渭南师范学院物理与电气工程学院,陕西渭南,714000 |
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| 基金项目： | 渭南师范学院科研计划项目(09YKF005) |
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| 摘 要： | 通过对无限大容量供电系统三相短路过程的分析，发现在三相短路过程中，其短路电流由周期分量和非周期分量组成．正是由于非周期分量的出现，才使电感中电流在突然短路瞬间前后不会突变．由于非周期分量的存在，在暂态过程中短路全电流曲线不与时间轴对称，以致短路后将出现比短路电流周期分量幅值更大的冲击电流．
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| 关 键 词： | 无限大容量 三相短路 暂态过程 周期分量 非周期分量 |
Analysis of Three-phase Short Circuit Current of Infinite-capacity Power Supply System |
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| JIN Yi-feng.Analysis of Three-phase Short Circuit Current of Infinite-capacity Power Supply System[J].Journal of Weinan Teachers College,2011(12):38-41. |
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| Authors: | JIN Yi-feng |
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| Institution: | JIN Yi-feng(School of Physics and Electronic Engineering,Weinan Teachers University,Weinan 714000,China) |
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| Abstract: | Through the analysis of three-phase short circuit of infinite-capacity power supply system,we find out the short-circuit current is made up by the periodic component i_p and non-periodic component i_np.It is because of non-periodic component,the current in the inductor will not be changed instantly in a sudden short-circuit.Because the existence of non-periodic component,the full current curve of short-circuit and time axis is not symmetrical in the transient process.This will lead to the instantaneous maximum amplitude value more than the periodic component of short-circuit. |
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| Keywords: | infinite-capacity power three-phase short circuit transient process periodic component non-periodic component |
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