Mitsubishi Electric Completes Installation of Railcar Traction System with All-SiC Power Modules on Shinkansen Bullet Trains

Mitsubishi Electric announced today that it has completed the installation of, and begun testing, railcar traction converter/inverter systems with all-silicon carbide (SiC) power modules on N700 Shinkansen bullet trains for Central Japan Railway Company (JR-Central). These are the first 3.3kV, 1500A traction systems to be installed on a high-speed train line.

N700 Shinkansen bullet trains_Traction systemMitsubishi Electric has been working to downsize its traction system for Shinkansen bullet trains. The use of SiC power modules reduces the size and weight of its new converter/inverter system by approximately 55% and 35%, respectively, compared to existing systems. The weight of the traction motor, including this system, is reduced by approximately 15%. The power modules were developed with support from the New Energy and Industrial Technology Development Organization of Japan.

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