DocumentCode :
3510490
Title :
Comparative evaluation of soft-switching, bidirectional, isolated AC/DC converter topologies
Author :
Everts, Jordi ; Krismer, Florian ; Van den Keybus, Jeroen ; Driesen, Johan ; Kolar, Johann W.
Author_Institution :
Dept. of Electr. Eng. ESAT-ELECTA, Katholieke Univ. Leuven, Leuven, Belgium
fYear :
2012
fDate :
5-9 Feb. 2012
Firstpage :
1067
Lastpage :
1074
Abstract :
For realizing bidirectional and isolated AC/DC converters, soft-switching techniques/topologies seem to be a favourable choice as they enable a further loss and volume reduction of the system. Contrary to the traditional dual-stage approach, using a power factor corrector (PFC) stage in series with a DC/DC isolation stage, we showed recently that the same functionality can be achieved under full soft-switching operation using a single-stage dual active bridge (DAB) AC/DC converter. This paper investigates the performance of this single-stage approach by comparing it with a state-of-the-art conventional dual-stage concept (both soft-switching converters), where a bidirectional interleaved triangular current mode (TCM) PFC rectifier was chosen in combination with a DAB DC/DC converter. The advantages and drawbacks of each concept are discussed in detail, focusing on the impact of the utilized semiconductor technology and silicon area on the converter efficiency. Furthermore, a comprehensive comparison of power density is allowed by the analytical models that correlate the component losses with their respective volume.
Keywords :
AC-DC power convertors; bridge circuits; network topology; power factor correction; rectifiers; rectifying circuits; DAB DC/DC converter; DC/DC isolation stage; PFC stage; TCM PFC rectifier; bidirectional AC/DC converter topologies; bidirectional interleaved triangular current mode; comparative evaluation; converter efficiency; dual-stage approach; full soft-switching operation; isolated AC/DC converter topologies; power density; power factor corrector; semiconductor technology; silicon area; single-stage dual active bridge; soft-switching converter; soft-switching technique; volume reduction; Analytical models; Bridge circuits; DC-DC power converters; MOSFET circuits; Switches; Thermal resistance; Topology; AC/DC converter; DAB; Dual Active Bridge; bidirectional; isolated; soft-switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1215-9
Electronic_ISBN :
978-1-4577-1214-2
Type :
conf
DOI :
10.1109/APEC.2012.6165951
Filename :
6165951
Link To Document :
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