Journal
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
Volume 5, Issue 4, Pages 861-878Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTE.2019.2958709
Keywords
Charging stations; dc fast charger; electric vehicles (EVs); extreme fast charging (XFC); solid-state transformer (SST)
Funding
- U.S. Department of Energy [DE-EE0008450]
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With the number of electric vehicles (EVs) on the rise, there is a need for an adequate charging infrastructure to serve these vehicles. The emerging extreme fast-charging (XFC) technology has the potential to provide a refueling experience similar to that of gasoline vehicles. In this article, we review the state-of-the-art EV charging infrastructure and focus on the XFC technology, which will be necessary to support the current and future EV refueling needs. We present the design considerations of the XFC stations and review the typical power electronics converter topologies suitable to deliver XFC. We consider the benefits of using the solid-state transformers (SSTs) in the XFC stations to replace the conventional line-frequency transformers and further provide a comprehensive review of the medium-voltage SST designs for the XFC application.
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