International Conference Jin-Hyuk Park and Kyo-Beum Lee, "A Two-Stage Bidirectional DC/DC Converter with SiC-MOSFET for Vehicle-to-Grid (V2G) Application," in Proc. CENCON Conf., Oct. 2017, pp. 288–293.
2017
본문
This paper proposes a two-stage bidirectional DC/DC converter for vehicle-to-grid (V2G). The two-stage converter is composed of
the isolated CLLC bidirectional resonant converter and the non-isolated bidirectional converter. The CLLC converter has the symmetric
resonant tank and is operated in the high-frequency which can reduce the volume of the transformer. The purpose of this converter
is high-frequency isolation without control. The converter is operated in the resonant frequency and the gain is maintained to unity.
The non-isolated converter performs the charging and discharging control. This converter has half-bridge structure which has
problem in regard of the serious voltage stress of the switches by the hard-switching. To reduce the power loss and achieve the
high efficiency, SiC-MOSFET is used in both converters. The proposed two-stage bidirectional converter is verified from PSIM
simulation with 15-kW bidirectional DC/DC converter.
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