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

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 vari