针对装载主辅变一体牵引变流器的动车组提出了一种通过分相区时维持中间滤波直流电路电压稳定,使列车辅助负载能正常工作的控制方法。试验结果表明,该方法不但能使动车组正常通过分相区,还能很好地保证动车组的可靠性和舒适性。 Aiming at the EMU with main and auxiliary variable traction converter, a control method is proposed to maintain the voltage of the intermediate filter DC circuit through the phase separation zone so that the train auxiliary load can work normally. The test results show that this method can not only make EMU pass the normal phase region normally, but also ensure the reliability and comfort of EMU well.