电力电子化高速铁路自动过分相技术

Technology of Power Electronics High-speed Railway Automatic Electric Phase Separation

随着电气化铁路的高速发展,电力机车的速度要求越来越高,减少电力机车在过电分相时速度损失成为了电气化铁路发展的必要条件,本文给出了一种在柱上式过分相原理的基础上,利用电力电子器件代替真空短路开关的方法,利用Matlab仿真,利用IGBT器件组成电力电子开关,搭建电力机车过分相等效电路,理论上实现了列车在过电分相时开关快速动作,减小了过分相时产生的过电压过电流现象,延长了柱上式开关的使用寿命。并做到了在开关动作的暂态过程中电流电压波形在五个周期内达到稳定,保证机车的安全稳定运行。

With development of electronic high-speed railway, it makes great difference to decrease the speed loss of electrical locomotive. On the basis of ground automatic passing the neutral section,making electronic switch, Matlab and IGBT as tools to build up the model of railway automatic electric phase separation. Realized theoretically that locomotive pass electric phase separation with high speed, prolonging switch life, and the results showed that waveform of voltage and current can be stabled in five period.