Rail transit multi-train speed curve track coordination optimization method

Abstract

The invention relates to a rail transit multi-train speed curve trajectory coordination optimization method, which comprises the steps of S1, selecting an optimization time slice according to an existing running chart of a train; S2, obtaining a first type of train tracks and a second type of train tracks in the optimization time slice; S3, splitting the first type of train tracks into a first interval state, a second interval state and a third interval state by adopting an MSM model; S4, constructing a double-layer optimization model comprising an upper-layer model and a lower-layer model according to the first interval state, the second interval state and the third interval state; and S5, solving the upper-layer model to obtain a decision variable to serve as a constraint condition of the lower-layer model, and then solving the lower-layer model to obtain an optimized train speed curve track. Compared with the prior art, the method has the advantages that under the constraint of theexisting running chart, regenerative braking factors are considered, the track is split by utilizing the MSM model, and the double-layer optimization model is constructed, so that the multi-train speed curve track under the condition of lowest running energy consumption can be obtained.

Description

technical field [0001] The invention relates to the technical field of rail traffic control, in particular to a method for coordinating and optimizing speed curve tracks of multiple trains in rail traffic. Background technique [0002] As the most widely used communication-based train control system (Communication-based train control, CBTC) in the field of urban rail transit, the automatic train control system utilizes high-precision train positioning (independent of track circuits), and can realize The two-way large-capacity and continuous data communication between the train and the ground realizes the continuous control of the train. The composition of the CBTC system can be divided into two parts: train control and information transmission. The train control part is the ATC (Automatic train control) system, including automatic train protection (ATP), automatic train operation (ATO) ) and automatic train supervision (ATS) three subsystems to complete the processing of tr...

AI Technical Summary

Problems solved by technology

As the number of trains running online continues to increase, multi-train energy-saving coordinated control is required to reduce the energy consumption of multi-train operations. Most of the existing multi-train energy-saving coordinated control methods use the method of changing the train diagram to adjust the speed curve of the train. trajectory, although this method can quickly optimize the train speed curve trajectory, it will affect the online operation of other trains due to the change of the train diagram, and it cannot guarantee that the speed curve trajectory of multiple trains is optimal. In addition, this method It does not take into account the utilization of regenerative braking energy between multiple trains, so it cannot effectively reduce the total energy consumption of multiple trains

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