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选取典型山区铁路襄渝线,采用仿真计算和线路试验相结合的方法,研究HXD1型8轴9 600kW电力机车在山区铁路长大坡道地段应用的可能性及存在的问题,确定该型机车牵引货物列车在西部典型线路上运行时合理的牵引定数。结果表明:在坡度为12.8‰的坡道上,该型机车的牵引定数不宜超过4 500t;在天气良好的情况下,该型机车的黏着利用较好,能够在限制坡道起动,在困难车站完成出站等作业,但牵引力已经用到最大,并出现了轻微空转;建议在小雨、大雾等黏着不利条件下应尽量避免在困难车站作业以及长大坡道地段起动;同等试验条件下,交流传动机车可比直流传动机车省电33.6%;试验中发现该型机车过分相牵引恢复时间较长,与长大坡道地段对牵引力快速恢复的要求不相适应,建议对机车过分相控制逻辑进行优化。
This paper selects the typical Xiang-Yu line of mountain railway, and uses the method of simulation and line test to study the possibility and existing problems of HXD1 type 8-axis 9 600kW electric locomotive applied in the up-hill ramp of mountain railway and determine the locomotive traction Reasonable number of trains for freight trains when operating on typical western routes. The results show that on the ramp with a slope of 12.8 ‰, the number of traction locomotives should not exceed 4 500t. In good weather conditions, this locomotive has good adhesion and can be used in the limited ramp start and in difficult stations Out of the station and other operations, but the traction has been the greatest use, and there has been a slight idling; suggested that in the light of the rain, fog and other adverse conditions of adhesion should be avoided in difficult station operations and the start of the growth of large ramps; the same test conditions, exchange The transmission locomotive can save 33.6% electricity compared with the DC locomotive. It is found that the over-phase traction of this locomotive takes a long time to recover, which is not compatible with the requirement of rapid recovery of the traction force in the long ramp. It is suggested that the over-phase locomotive logic be optimized .