Strengthening the Power Supply System of Electrified Railways, Taking into Account the Use of Interval Control Devices

The technical means and technologies aimed at strengthening the traction power supply system, are considered in this work, namely a Railway Collision Avoidance System of train traffic with a centralized equipment arrangement when using rail circuits without insulating joints, which is promising from the point of view of qualitatively improving operational, technical and economic indicators, and works in conjunction with the scheme of organizing the movement of connected trains on the basis of “virtual coupling”, which are increasingly being used both on the railways of Russia and on foreign railways. The features of building such systems on one of the main trips of the country are analyzed. The principle of organizing the movement when using a system based on moving block sections is described. The technologies exclude the additional time spent on the formation of heavy and connected trains, the loss of time during overtaking in the event of a malfunction of the rolling stock along the route is significantly reduced, and an increase in the throughput of sections through the introduction of new Railway Collision Avoidance Systems allows reducing the intervals of passing trains to 3-6 minutes. A comparative assessment of the application of a modern Railway Collision Avoidance System, formed according to the principle of “virtual coupling” and “rigid” coupling, with the use of the Fazonord software and computing complex is made. The model of the power supply system of the railway section is presented. The necessity of additional strengthening of the traction power supply system with longitudinal compensation devices and voltage regulation under load on traction transformers is shown.