07-07

Transportation
Systems

Already synonymous with reliable, safe, and comfortable rail transportation around the world, Mitsubishi Electric is adding “energy-efficient” to the list of qualities that define our advanced rolling stock systems, station facility systems, planning and control systems, and communication systems.

Rail Systems

Rail system solutions are garnering attention as a viable form of transportation with less environmental impact. Mitsubishi Electric is striving for high-level environmental performance through new technologies, such as low-energy-consumption rolling stock, regenerated electric power, the leveling of power loads, and more. As the only manufacturer in the world that can run, stop, and control rolling stock, Mitsubishi Electric has delivered electrical equipment and systems for approximately 38,000 railcars in 29 countries all over the world. With state-of-the-art technologies, Mitsubishi Electric has been playing an important role in the transportation infrastructure field. One of Mitsubishi Electric’s recent achievements is the launch of our Railcar Traction Inverter with an all-SiC power module. The new system reduces switching loss by approximately 55% compared to Mitsubishi Electric’s conventional inverter system. In addition, it increases regenerated energy through the use of regenerative brakes in all speed ranges. As a result, total energy consumption of railcar systems, including their motors, is reduced by about 30% compared to conventional systems. The product lineup also includes ground-based systems such as our Station Energy Saving Inverter (S-EIV®). S-EIV® enables the efficient use of regenerative electricity, and direct delivery of the regenerative electricity to the station facilities, without the need for a secondary battery. This equipment can contribute a daily power savings of approximately 600kWh, or enough power for about 60 households.

Highlights

Awarded Contract to Modernize Deutsche Bahn
ICE-2 Train Equipment

Mitsubishi Electric recently won the contract to modernize traction equipment for 46 Intercity Express 2 (ICE-2) High-Speed trains run by Deutsche Bahn AG (DB), in Germany. Mitsubishi Electric will replace the current gate turn-off thyristor (GTO) power modules with insulated gate bipolar transistor (IGBT) power modules. The upgrade will result in decreased energy consumption, reduced size and weight, and longer train life.

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