  In this paper, we presented a matrix converter with a high-frequency DC link
for EV DC fast charging applications. Introducing this topology allows
eliminating electrolytic capacitors in DC link of the converter, which
potentially increases the reliability and power density of the system. The
converter uses bidirectionally blocking three-phase rectifier to generate a
high-frequency square wave voltage for the series resonant LC DC/DC converter,
eliminating one H-bridge in front of the resonant tank. Principles of
high-frequency and low-frequency modulations are described. A low voltage
prototype has been built and tested which demonstrated ZVS soft switching of
all the transistors in the converter. Peak efficiency estimated as 98.0 % for
state-of-the-art switches.
