fbpx

Railcar traction inverter with SiC power modules achieves 40% power savings

Mitsubishi silicon carbide inverter

Mitsubishi Electric Corporation, which has been testing a traction inverter made with silicon carbide (SiC), has announced that the component has demonstrated a savings in power consumption of around 40%.

The traction inverter was installed in a 1000 series urban train in commercial service with a Japanese railroad, and was tested over a four-month period.

SEE ALSO: Gallium nitride and silicon carbide expected to displace silicon in power electronics

Mitsubishi silicon carbide inverter 2

The testing compared a railcar retrofitted with an all-SiC traction inverter, which is rated for 1,500 V DC catenaries, to another car fitted with a conventional gate turn-off thyristor traction inverter. The test measured the power consumption and electric power regeneration ratio of the two cars’ main circuits, which comprise traction inverters, high-efficiency main motors and filter reactors.

The results showed power savings of 17% during powered operation, an increase in power regeneration ratio from 34.1% to 52.1%, and 40% power savings overall.

MORE: Toyota tests silicon carbide power semiconductors in a hybrid Camry and fuel cell bus

 

Source: Mitsubishi Electric via Green Car Congress

 

Comments
Create Account. Already Registered? Log In

EV Engineering Webinars

The free webinar sessions from our Spring 2022 Virtual Conference are now available to view on-demand. Register for a session below to watch the recording and download the presentation.

LOAD MORE SESSIONS