TY - GEN
T1 - Quadruple Active Bridge DC-DC converter as the basic cell of a modular Smart Transformer
AU - Costa, Levy F.
AU - Buticchi, Giampaolo
AU - Liserre, Marco
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/5/10
Y1 - 2016/5/10
N2 - One of the main challenges of a Solid-State transformer (SST) lies in the dc-dc conversion stage. In this work, a Quadruple-Active-Bridge (QAB) dc-dc converter is investigated to be used as the basic module for the whole dc-dc stage. Besides the feature of high power density and soft-switching operation, the QAB converter provides a solution with a reduced number of high frequency transformers, since more bridges are connected to the same multi-winding transformer. To ensure soft-switching in the full operation range of the converter, two modulation strategies are investigated: the phase-shift modulation and the triangular current modulation. The theoretical analysis is developed for both modulation strategies and a comparison between them is carried out. In order to validate the theoretical analysis, a 20 kW prototype was built and tested.
AB - One of the main challenges of a Solid-State transformer (SST) lies in the dc-dc conversion stage. In this work, a Quadruple-Active-Bridge (QAB) dc-dc converter is investigated to be used as the basic module for the whole dc-dc stage. Besides the feature of high power density and soft-switching operation, the QAB converter provides a solution with a reduced number of high frequency transformers, since more bridges are connected to the same multi-winding transformer. To ensure soft-switching in the full operation range of the converter, two modulation strategies are investigated: the phase-shift modulation and the triangular current modulation. The theoretical analysis is developed for both modulation strategies and a comparison between them is carried out. In order to validate the theoretical analysis, a 20 kW prototype was built and tested.
UR - http://www.scopus.com/inward/record.url?scp=84973652181&partnerID=8YFLogxK
U2 - 10.1109/APEC.2016.7468209
DO - 10.1109/APEC.2016.7468209
M3 - Conference contribution
AN - SCOPUS:84973652181
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2449
EP - 2456
BT - 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Y2 - 20 March 2016 through 24 March 2016
ER -