Energy-saving control method for automatic train driving

Abstract

The invention discloses an energy-saving control method for automatic driving of a train, which includes: calculating the speed at the entry time of each operation stage, the duration of each stage, and the time used for each stage according to different train performance models, train wind resistance models, and line gradient information. distance, and take the running distance between stations as the constraint condition, so as to calculate a series of speed curve models; use the train energy consumption model to estimate the energy consumption of each speed curve model; based on the optimization factors including energy consumption and each optimization The weight of the factors comprehensively evaluates all speed curve models, selects the optimal speed curve model, and uses the optimal speed curve model for automatic train driving. This method can estimate the operating energy consumption, and select the optimal control curve based on the energy consumption, so as to achieve the purpose of energy-saving control.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an energy-saving control method for automatic train driving. Background technique [0002] In recent years, rail transit and train control technology have developed rapidly, and the automatic train driving subsystem (ATO) has been widely used. In the field of urban rail transit, the ATO system has gradually become an important and necessary configuration. It is also used in some EMUs and high-speed rail lines. to the application. As an important part of the modern train control system, the ATO system, relying on the automatic train control realized by it, can reduce the manual labor intensity, accurately adjust the running time according to the real-time operation plan, improve the comfort of train operation, and greatly improve the operation efficiency of rail transit. [0003] With the rapid growth of rail transit operating mileage and the wide application of ATO systems,...

AI Technical Summary

Problems solved by technology

But the defect of this scheme is: 1) in order to realize the maintenance of cruising speed, ATO system needs to control train traction and braking in real time, when the tolerance of speed fluctuation range is small, it is easy to switch traction and braking commands repeatedly, reducing ride Comfort; when the tolerance of the speed fluctuation range is large, it is easy to cause the train to be early or late

2) The repeated switching of the traction and braking commands of the ATO system during the cruising process is essentially unnecessary traction energy consumption. In the section with complex slope slopes, the acceleration and deceleration gains caused by the uphill and downhill make the traction caused by this control method The waste of energy consumption is more obvious

3) In the high-speed railway, due to the obvious increase of air resistance at high speed, the waste of traction energy consumption caused by the switching operation of traction and brake performed by the ATO system to maintain the cruising speed at high speed is more obvious

Images