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电网技术  2014 

高速列车再生制动工况时牵引供电系统谐波传输特性分析

DOI: 10.13335/j.1000-3673.pst.2014.02.033, PP. 489-494

Keywords: 高速铁路,再生制动,谐波传输,谐波分析

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Abstract:

电气化铁路牵引负荷是电力系统中的主要谐波源之一,再生制动时高速动车组作为特殊情况下的牵引负荷带来的谐波问题更加突出。在建立高速动车组和全并联自耦变压器牵引网模型的基础上,仿真分析了高速动车组牵引工况和再生制动工况时牵引供电系统中的谐波特性及其传输情况,并从理论上分析了谐波传输的机制。结果表明,高速列车再生制动工况时会在牵引网供电系统中引起更大的谐波畸变,但谐波的放大趋势与动车组的工况无关,当某次谐波的频率与牵引网的结构相匹配时,则会在系统中出现谐振现象。

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