A heavy haul train operation curve multi-objective optimization method based on a hook buffer device model

Abstract

The invention discloses a heavy haul train operation curve multi-objective optimization method based on a hook buffer device model. Based on running line constraint conditions of the heavy haul train,a dynamic longitudinal dynamics model and a hook buffer device model in the train operation process are established; A multi-objective genetic algorithm is used to establish a train optimization control model. meanwhile, the premature phenomenon of the genetic algorithm is considered, the genetic algorithm parameters are dynamically adjusted through the self-adaptive algorithm, the self-adaptivegenetic algorithm combining the self-adaptive algorithm and the genetic algorithm can keep the population diversity, meanwhile, the convergence of the genetic algorithm is guaranteed, and a train operation optimization curve is obtained. For a complex nonlinear heavy haul train operation process, a dynamic longitudinal dynamics model and a hook buffer device model of the train operation process are established, a train optimization operation model is established by applying a multi-objective genetic algorithm, a train operation curve is optimized, and safe, punctual and energy-saving operationof a train is realized.

Description

technical field [0001] The invention relates to a heavy-duty train running process modeling and running curve optimization method, and belongs to the technical field of heavy-duty train running process monitoring and automatic control. Background technique [0002] Heavy-duty trains have the advantages of large capacity, high speed, low energy consumption, low cost, and all-weather, and show great advantages in high efficiency and low cost in transporting bulk cargo. However, with the continuous increase of traction weight, the operation mode of heavy-haul trains has also changed, and the transportation safety problems of heavy-haul trains have gradually become prominent. Problems such as brake failure and vehicle hook breakage continue to occur, which seriously restrict the development of heavy-haul railway transportation. . [0003] It is the most basic requirement for the safe operation of the train that the train does not run at overspeed, and the couplers are constantl...

AI Technical Summary

Problems solved by technology

However, when most studies study the multi-objective operation optimization of heavy-duty trains, the safety only considers the speed limit, and does not consider whether the coupler force exceeds the limit. At the same time, it does not combine the phase-splitting points existing in the actual operating line for research.

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