突发扰动下铁路技术站进路动态优化调整方法研究OA

To solve the problem of high safety pressure and low operational efficiency caused by the inability of manual route selection or computer one-time route selection to cope with the impact of sudden disturbance events.With the goal of quickly adjusting the route plan during sudden disturbance and achieving the best continuity of the plans before and after adjustment,a dynamic optimization adjustment method for railway technical station routes was proposed.Firstly,by establishing the primitive model of signal,turnout and track section,the network topology of railway station yard was described in detail.The relationship among operation plan,operation task and route and the influence of disturbance on operation and route were analyzed.Then,based on the route scheme,disturbance information and operation plan at time t,considering the constraints of activity execution sequence,route occupation conflict and interlocking table,and aiming at minimizing the delay time of tasks and the total number of route adjustments,a 0-1 integer programming model for the dynamic adjustment of the routes of the railway technical station was constructed.Secondly,a genetic algorithm based on neighborhood search was designed to calculate the executable route scheme after t+1 time adjustment.Finally,based on the actual data from a certain technical station,a calculation example was designed to verify the effectiveness of the model and the efficiency of the algorithm.Some conclusions are drawn as follows.The adjusted route scheme can eliminate the route conflict caused by disturbance,avoid the delay caused by interference to the operation,and restore the normal order of the station operation.The genetic algorithm based on neighborhood search can obtain the satisfactory solution in about 45 iterations.Compared with traditional genetic algorithms,this algorithm has a faster convergence speed and higher efficiency in obtaining the satisfactory solution.The research results can provide theoretical support for the automatic execution of railway technical station operation plans under the integration of scheduling and control.