Evaluation of the compatibility of the power traction supply system with a use of a “virtual coupling” technology

Abstract

This article will propose the practical use of the interval control technology that will reduce the interval of passing trains and will increase the capacity of railway lines. Controlled approbation of the technology was carried out on railway sections for freight traffic: Shkotovo - Nakhodka, Novonezhino - Krasnoarmeysky of the Far Eastern railway and Koshurnikovo-Shchetinkino of the Krasnoyarsk railway in terms of “push locomotives” transferring to the opposite direction using the “virtual coupling” system; Mogocha - Urusha of the Trans-Baikal railway in terms of traffic organizing using the “virtual coupling” system for empty trains during long “Windows” on infrastructure; Slyudyanka - Bolshoy Lug of the East Siberian railway in terms of testing interval control technology to ensure the return of odd freight trains “push locomotives” using the “virtual coupling” system. The practical experience of the system use considered in the article allowed us to identify the main directions for its further development: protected radio channel stability improvement in obstacles of the rough terrain and the presence of tunnels; auto-driving algorithms operation.

Justification of measures aimed at increasing the capacity of a section of a railway line, taking into account its required electrical capacities

“…The constructed mathematical model of the regression type, which interconnects the particular characteristics of the influence of the organization of the work of traction power supply devices on the level of throughput and processing capacities of section 1-2 of the Higher Railway, as well as the calculations of the forecast of risk cases carried out on the basis of the software package, fully confirm the assumption that this level is related to first of all, with the main component criterion for passing trains -the load capacity of traction power supply devices [6][7][8].…”

“…To determine the predicted values of a possible decrease in the level of throughput and factors of influence, regression models were built on the example of the operation of section 1-2 of the East Siberian Railway, based on the initial data on failures for the period 2010-2020 [6][7][8]. As can be seen from Figure 1, the main constituent criterion for the passage of trains is the load capacity of traction power supply devices, which is present in each group of impact facts.…”

Improvement of the power grid system of the East Siberian Railway

“…The calculation results of the power network system operating modes of the Achinsk -Krasnoyarsk-Vostochny, shown in table 2, it is clear that all the traction network characteristics accept the permissible norms [7].…”

“…In order to ensure regular and safe driving of increased mass trains up to 18 thousand tons and length up to 780 axles with locomotives distributed along their length, one locomotive team of VNIIZHT has created an intelligent automated driving system for such trains (AIDS-RT) (figure 1) [7]. The AIDS-RT auto-driving system provides automatic limitation of longitudinal dynamic forces in excess of the permissible ones in the connected train, which eliminates the possibility of squeezing railroad cars and breaking auto-couplings in all control modes.…”

The impact of the passage of long-distance trains on the required electrical capacity of the transport infrastructure facilities of the Eastern polygon of Railways

“…The next train, arriving at station C according to the train schedule, on the first main track, makes a forced stop, due to the arrival of the push locomotive on track 23. Also, according to the order on the norms of weight and length of trains calculated on the basis of a series of locomotives, a pushing locomotive is installed on trains [12][13][14].…”