| 地铁供电系统直流侧矩路暂态过程分析 |
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| 引用本文： | 廖永衡,冯晓云,张峻领,黄丹丹.地铁供电系统直流侧矩路暂态过程分析[J].电力电子技术,2009,43(12). |
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| 作者姓名： | 廖永衡 冯晓云 张峻领 黄丹丹 |
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| 作者单位： | 西南交通大学,四川,成都,610031 |
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| 摘 要： | 24脉波整流系统因具有很强的削弱网侧谐波电流的功能,已广泛应用到城市轨道交通电网建设中.精确计算出该牵引整流系统的直流侧短路电流对设计短路时保护器件和相关电力设备是非常重要的.牵引整流系统直流侧短路可分为粘流所直流侧近端短路和牵引网远端短路.通过分析分别建立了近端短路暂态和稳态计算模型以及远端短路暂态计算模型,并通过Matlab对该模型进行了仿真,其结果表明了该模型的正确性.
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| 关 键 词： | 整流器 地铁直流供电系统 短路电流 |
Analysis of Close-up and Remote Short Circuit Transient of DC Supplied Railways |
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| LIAO Yong-heng,FENG Xiao-yun,ZHANG Jun-ling,HUANG Dan-dan.Analysis of Close-up and Remote Short Circuit Transient of DC Supplied Railways[J].Power Electronics,2009,43(12). |
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| Authors: | LIAO Yong-heng FENG Xiao-yun ZHANG Jun-ling HUANG Dan-dan |
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| Abstract: | Electrical supply substations(ESS) in modem railway DC systems are widely equipped with 24-pulse rectifiers,because such a converter provides a good promise between DC-side voltage ripple and AC-side current harmonic content.Accurate determination of transient DC-side short-circuit current is important for design of protection devices and power equipment.The general method to calculate the short-circuit current is obtained by combining both the impedance calcula-tion and short-circuit current formula in short-circuit state which is verified by the simulation with Matlab.The result shows the method is correct. |
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| Keywords: | rectifier DC supplied railway short-circuit current |
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