Traction and Energy Justification for the Use of Hybrid Shunting Locomotives for Passenger Train Formation on the North Caucasus Railway

The article presents the concept of modernizing the TEM18DM shunting diesel locomotive by integrating an asynchronous traction drive and an on-board NE288-870 lithium-ion energy storage device used on the EMKA2 battery-electric locomotive. Layout and circuit design solutions are proposed for implementing the energy storage system with the formation of a common DC link. The results of traction characteristics calculations across various operating modes, including movement powered by the energy storage device, are presented. It is shown that transitioning shunting operations to hybrid traction ensures a reduction in diesel fuel consumption by up to 20%, an increase in the overall efficiency of the locomotive, and an extension of the diesel engine's overhaul life.

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