Abstract
Most of the territory of the Russian Federation is located in the zone of long-term exposure to negative ambient temperatures. In this regard, in the suburban traffic on the railways of the Russian Federation, a significant proportion of the electric power falls on the operation of heating and air conditioning systems. Nowadays, Russia and the world are developing energy-saving methods and tools to reduce the energy consumption of auxiliary needs of electric trains. In this paper, the method of constructing simulation models in the MATLAB Simulink software was used to build an energy-saving heating and air conditioning system, since this method allows studying various options for building the studied systems with lower financial and labor costs in comparison with the experimental method. The correct selection and display of the parameters of the electric train interior will allow achieving the optimal values of energy consumption for heating and air conditioning of the electric trains. In order to verify its adequacy, the simulation model includes standard values of electric energy consumption for heating and conditioning electric trains for various sections and operating conditions, which were obtained earlier during the correlation and regression analysis of data from electric train parameter recorders. The results of the study showed the adequacy of the application of the developed simulation model for organizing the control of electric power consumption for heating and air conditioning of DC electric trains.
Highlights
Rail transport is a key industry in the Russian Federation, which accounts for about 4.4% of all electricity generated in Russia, 85% of which is spent on traction of trains, which is why the priority of the energy strategy of the Russian Railways holding for the period until 2020 and for the prospect until 2030 is a significant increase in the energy efficiency of train traction [1 - 3]
It should be noted that the main volume of transportation in electric traction on Russian railways falls on freight traffic and reaches 95% of the total work
Given the fact that the activities of subsidiaries of Russian Railways involved in the carriage of passengers in suburban traffic are either unprofitable or are at the break-even point, and the payment of energy resources is the primary expense item for suburban companies, the issue of rational use of energy resources in suburban traffic is very relevant
Summary
Rail transport is a key industry in the Russian Federation, which accounts for about 4.4% of all electricity generated in Russia, 85% of which is spent on traction of trains, which is why the priority of the energy strategy of the Russian Railways holding for the period until 2020 and for the prospect until 2030 is a significant increase in the energy efficiency of train traction [1 - 3]. Its share, according to the results of 2018, accounts for about 889 Terawatt-hours or 4.2% of all electricity consumed in the world In this regard, one of the priority areas for the development of science, technology and engineering of the Russian Federation for the 10-15 years is energy efficiency, energy conservation, and. This sensor can be used as a prototype when developing options for placing sensors in the passenger compartments of electric trains. A preliminary conclusion on the feasibility of implementing certain devices on an electric train can be given by an adequate simulation model of the operation of heating and air conditioning systems, using which it is possible to simulate various options for upgrading systems and assess their effectiveness in terms of energy efficiency
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