Checking the operation parameters of the traction power supply system with a long-term train schedule on the rated section of the railway line

Abstract

The handling of trains of increased weight and length, consisting of rolling stock with an axle load of 25 tons, and up to 27 – 29 tons in the future, is a difficult technical and economic task facing Russian Railways OAO today. A heavy train cannot be slowed down often, much less stopped, since this leads to a significant loss of energy. In the article, the authors considered the issue of strengthening the traction power supply system on the rated section of the railway line of the Eastern polygon in connection with an increase in the amount of cargo turnover by 2025. Based on the results of the traction calculation, the predicted values of the indicators were obtained. They are the total travel time of the train along the section of the railway line, the free running time of the train, the consumption of active and total electricity, the specific consumption of active and total electricity for each inter-substation zone of the railway line section. The operation parameters of the traction power supply system with a long-term train schedule on the rated section of the railway line are determined. The research results obtained by the authors made it possible to determine the limiting sections and objects of transport infrastructure for the handling of heavy-haul and long freight trains on the rated direction.