Modernization of the traction converter on the Ivolga electric train

Currently, the railways of the Russian Federation use high-speed electric trains Sapsan and Allegro, as well as high-speed trains Lastochka and Ivolga.Considered the possibility of replacing foreign-made converter components with domestic-made components.Compared the characteristics and specific indicators of the domestic traction converter BORDLINE CC1500 DC 3kV U 2000 037 A02 and the foreign frequency converter with a 3-level inverter MV9FT-31-781WAD-466+Z. A comparative analysis of the characteristics of the converters shows that the efficiency of the converter of domestic production is higher by 6.6 % with a significant decrease in specific indicators in terms of weight and dimensions.In order to increase the efficiency of the traction converter on the Ivolga electric train, it is proposed to replace it with a frequency converter with a 3-level inverter based on IGBT transistors MV9FT-31-781WAD-466+Z. A diagram of a frequency converter with a 3-level inverter based on IGBT transistors is presented.The weight and size indicators of these converters are the same, which makes it possible to produce this equipment from components of domestic production. The possibility of creating a modern traction converter based on domestic components is shown.Modernization of the traction converter on the Ivolga electric train using the domestic element base will make it possible to bring it into line with modern technical requirements and increase the efficiency of the electric train.