Delta Electronics (Americas) demonstrated a next-generation SiC MOSFET solid-state transformer-based 400 kW EV charger at a recent event attended by representatives of project partners GM, DTE Energy and NextEnergy.

Delta’s “extreme fast” EV charger uses a three-phase 13.8 kV medium-voltage SiC MOSFET SST topology. It provides 500 A of charging current, and the company claims grid-to-vehicle energy efficiency as high as 96.5%.

Delta says its next-generation SST technology offers “essential capabilities for smart grid applications, such as reactive power compensation for voltage stabilization and improved power quality.” The new charger’s HVDC power architecture “enables connection with renewable energy and energy storage systems.”

“Delta continuously develops ground-breaking technologies and fosters long-lasting relationships with partners,” said Kelvin Huang, President of Delta Electronics (Americas). “This is how Delta, a member of the RE100 and EV100 initiatives, has been able to deliver more than 1.5 million EV chargers worldwide over the past decade.”

“A key aspect of the new technology is the ability to connect directly to medium-voltage distribution and provide faster, more efficient charging compared to lower-voltage chargers,” said Richard Mueller, DTE Energy Technology, Standards and Interconnection Manager. “This project will give DTE and its project partners significant insight into how these fast chargers can be integrated safely, reliably and with ever-growing numbers into the grid.”  

Source: Delta