Abstract
The authors of the study work out to determinate of the mathematical model of supercapacitors as an object of an electric traction system capable of providing non-encumbering of obtaining research results and correct reproduction of energy exchange processes in conditions of repeated-short-term modes of traction load operation. In paper, authors make a comparative assessment of six models for the possibility of their integration into the model of electric traction systems with on-board placement of the energy storage.
Highlights
The main technical and economic issue in transport today is the regulation and management of power consumption modes [1, 2] in order to optimize the power consumption for traction
Against the background of the diversity of mathematical models of capacitive energy storage, today we cannot definitely identify which of the mathematical models should be preferred in the framework of its representation as an object of a hybrid electric traction system, even under specific conditions [3]
Modeling of hybrid systems, where supercapacitor energy storage is considered as backup power supplies and devices for storing excess energy with an unpredictable energy exchange cycle
Summary
The main technical and economic issue in transport today is the regulation and management of power consumption modes [1, 2] in order to optimize the power consumption for traction. Intelligent models are a fairly promising variety of models, but there are a number of disadvantages associated with the difficulty of reproducing nonlinear effects and sensitivity to the quality of training data This problem is very complicated for several railway systems [6,7,8] and very complicated for marshaling yard with very difficult control and management system in real time [9]. It can be claimed that the arguments given in works [11,12,13] undoubtedly convince of the possibility of using equivalent and electrochemical models as a model of an energy storage device It is still not clear which criteria to apply when selecting a mathematical model of the SC in the framework of the study of the energy processes of hybrid electric traction systems in conditions of cyclic repeated-short-term operation. Achieving article goal requires: – creation of a list of models most used in practice; – determination of selection criteria; – carrying out simulation modeling of the specified SC models; – determination of indicators of accuracy of SC behavior reproduction and verification of the obtained results of simulation with experimental data
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