Energy-saving optimization method for train interconnection and cross-line operation

Abstract

The invention provides an energy-saving optimization method under the condition of train interconnection and cross-track operation. The method includes: obtaining the traction process of the train on the line and the train on the cross-line respectively according to the traction characteristic curves of the train on the line and the train on the cross-line, and establishing an energy-saving optimization model of the driving strategy of the train on the line and the train on the cross-line under different traction processes; The genetic algorithm solves the energy-saving optimization model of the driving strategy to obtain the most energy-saving driving strategy. Based on the most energy-saving driving strategy, the relationship between the running time and operating energy consumption of the train and cross-line trains is obtained, and the energy-saving optimization of the rail train interconnection line schedule is established. model; the particle swarm algorithm is used to solve the energy-saving optimization model of the rail train interconnection line schedule, and the energy-saving optimization scheme that minimizes the total energy consumption of the train is obtained. On the premise of safely and efficiently completing the cross-line operation, the invention can coordinate the mutual restriction relationship between the current line and the cross-line line, improve the utilization rate of regenerative braking energy, and achieve the purpose of energy saving.

Description

technical field [0001] The invention relates to the technical field of energy-saving optimization of urban rail transit, in particular to an energy-saving optimization method for train interconnection and cross-line operation. Background technique [0002] As rail transit lines in more and more cities in my country enter into networked operations, cross-line operation of trains on different lines has become a main feature of networked operations. "Urban Rail Transit Communication-Based Train Operation Control System (CBTC) Interconnection System Specification", at the same time, in Chongqing Metro, led by the China Urban Rail Transit Association, launched the Chongqing Interconnection National Demonstration Project, which has entered trial operation stage. [0003] With the rapid development of urban rail transit, the problem of high energy consumption has become increasingly prominent. In the current energy-saving optimization method of urban rail transit, it is mainly aime...

AI Technical Summary

Problems solved by technology

[0007] The shortcoming of the method for energy-saving optimization of urban rail trains in the above-mentioned prior art under single-track running lines is: this method is not suitable for energy-saving optimization of urban rail trains under interconnection and cross-line operation, mainly because of the following three reasons:

[0008] 1. Only consider the same performance trains in this line, and the impact of the same line parameters on energy-saving optimization; but do not consider the influence of different performance trains and different line parameters on the driving strategy optimization of the main line and cross-line lines

[0009] 2. Only the utilization of regenerative braking energy in the main line is considered, but the situation that the regenerative braking energy between the main line and the cross-line cannot be mutually utilized is not considered

[0010] 3. Only the timetable of the trains on the main line is coordinated, without considering the influence of the mutual influence and mutual restriction between the main line and the cross-line lines on the optimization of the timetables of each line

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