Abstract
The main aim of the paper was to develop an innovative approach to the preliminary estimation possibility of train energy cooperation based on data from timetables, without traction calculations. The article points out the need to strive for sustainable and environmentally friendly transport. It was pointed out that rail transport using electric traction is one of the more ecological branches of transport. It also offers a number of possibilities for improving energy efficiency and reducing energy consumption, one of which is the recovery and reuse of energy lost in the electrodynamic braking process. The main ways in which such energy can be used are listed, but the focus is mainly on the aspect of the so-called “energy cooperation” of trains. Then, the current state of the research and knowledge on the narrowed scope of rail traffic management and recuperative braking in rail transportation is presented; an innovative approach to the indirect optimization of the amount of recuperated electrical energy immediately usable by another vehicle by maximizing the duration of energy co-optimization is proposed; and the authors’ function is proposed to enable optimization, taking into account various parameters. The optimization was performed with the use of a proprietary, multi-criteria objective function and the Solver optimization module. Finally, the results obtained using the proposed approach are presented and illustrated with the example of train timetables used by some of the largest railway stations in Poland.
Highlights
In recent years, significant importance has been placed on both the development of innovative technologies for the production of so-called “green energy” and on reducing the energy consumption of the economy, one of the main elements of which is transport
Railway transport using electric traction is considered one of the more environmentally friendly branches of transport [3]
Genwehrearle Aws1,swum2, wpt3i,own4saarne dtheDwaetaight factors of each function, where: Optimization, according to∑thwegu=ni1vaenrdswalg a∈lg0;o1rithm, can be used at a(2n5y) railwa tion or stop, but item 4 was perfog rmed for five selected large railway stations in P
Summary
Significant importance has been placed on both the development of innovative technologies for the production of so-called “green energy” and on reducing the energy consumption of the economy, one of the main elements of which is transport. This, among other factors, is because a large portion of the electricity produced comes from coal power plants. Their share in energy production in countries such as Germany, France, or Spain is around 15%, but in countries such as Poland, the share of energy derived from coal combustion is as high as 70% [2]. Taking into account climate change and its impact on the comfort of human life [4,5,6], and numerous legal documents aimed at reducing the environmental impact of transport activities [1,7,8], and by encouraging a switch to green energy, for example by providing loans on favorable terms [9]
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