Train operation energy-saving method based on dynamic planning and time distribution

Abstract

The invention discloses a train operation energy-saving method based on dynamic planning and time distribution. The method comprises the following steps: establishing a train traction energy consumption multi-stage calculation model; taking weighting of stage energy consumption and time as an optimization objective function, searching an interval operation curve of fixed time, and inputting the interval operation curve into the traction energy consumption multi-stage calculation model to obtain corresponding traction energy consumption of each interval under different operation time; fitting time energy consumption inverse proportion characteristic curves of different intervals; calculating the redundant time of each interval, and discretizing the redundant time to obtain a plurality of time units; establishing a multi-interval operation curve collaborative optimization model; pre-allocating a time unit to all the intervals, and allocating the time unit to the interval with the maximum energy consumption variable quantity through comparison; updating the interval operation time and the redundant time until all the redundant time is distributed; and inputting a redundant time distribution result into an ATS system, and compiling a new energy-saving running diagram. According to the invention, comprehensive energy conservation and consumption reduction and intelligent operation optimization management are realized.

Description

technical field [0001] The invention relates to the technical field of urban rail transit traction energy saving, in particular to a train operation energy saving method based on dynamic programming and time allocation. Background technique [0002] With the rapid development of the economy and the vigorous advancement of urbanization, the scale of my country's cities continues to expand, and the urban population and passenger traffic increase year by year. Conventional public transportation has been difficult to meet the actual needs of my country's development. At this time, urban rail transit stands out from various public transportation means with its characteristics of large capacity, fast speed, less pollution, high punctuality, good comfort, and less road space resources per capita. It not only improves transportation efficiency, but also greatly The land has alleviated the congestion problem caused by the rapid increase in urban population, so more and more cities ha...

AI Technical Summary

Problems solved by technology

However, in the current existing research, because the ATO speed curve and the operation diagram belong to two different disciplines, they are often studied separately as two independent fields, which leads to the preliminary research on the integrated energy saving of the two. During the exploration, the models of the two fields were not analyzed clearly at the same time, and there was a problem that the integrated energy-saving model was not accurate, and the effect of integrated energy-saving could not be truly realized

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