基于虚拟信号机的复杂货运站场发车能力提升研究

Train Departure Capacity Improvement of Complex Freight Station Based on Virtual Signals

针对重载铁路技术站咽喉区占用率高导致发车困难问题,提出一种基于虚拟信号机的复杂货运站场发车能力提升方法。该方法在重载铁路移动闭塞系统基础上,通过增设虚拟信号机将发车进路进行细分,使得列车能够分段使用路权,以便后发列车提前办理虚拟进路;同时,根据先发列车实时和历史的牵引/制动状态、位置及速度信息,结合真实的发车数据库和数据匹配算法匹配前车出清冲突道岔所需的时间,进而为后发列车动态计算出最优的发车时机。基于实际货运站场的仿真实验表明,该方法能够确保后发列车不降速成功发车,提升了复杂货运站场的发车能力,有利于推广应用到重载铁路中。

Aiming at difficult departure due to the high occupancy rate of the throat area of heavy-haul railway technical stations,this paper proposed a method to improve the train departure capacity of complex freight stations based on virtual signals.The method subdivided the departure route by adding a virtual signal based on the moving block system of heavy-haul railway.In this way,the train can use the right of way in sections to handle the virtual route for later trains in advance.Additionally,considering information related to the real-time and historical traction/braking status,position,and speed of the front train,the paper adopted the real departure database and data matching algorithm to match the time required for the front train to pass through the conflict switch and then calculated the optimal departure time for the later train dynamically.The simulation experiment based on the actual freight station shows that the proposed method can ensure the successful departure of the later train without speed reduction,improve the departure capacity of the complex freight station,and can be applied to the heavy-haul railway.