TY - JOUR
T1 - A Three-Level Isolated AC-DC PFC Power Converter Topology with a Reduced Number of Switches
AU - Aldosari, Obaid
AU - Garcia Rodriguez, Luciano Andres
AU - Oggier, German G.
AU - Balda, Juan Carlos
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2021/2
Y1 - 2021/2
N2 - The main objective of this research work is to develop a new low-cost isolated three-level ac-dc power converter topology with a reduced number of switches. Existing three-level converter topologies change ac power to dc power while maintaining requirements set by international standards for power conversion. These types of converters have significant conduction losses due to high currents in the low-voltage side and high costs, mainly when using several active devices in series or in parallel to achieve high-voltage and high-power levels. The proposed topology replaces the conventional three-level converters in the secondary side by only two controlled devices and four diodes while still maintaining the basic functionality of a three-level converter. Furthermore, simulation results for a 25-kW case study and experimental results on a 900-W scale-down prototype demonstrate the feasibility of the proposed ideas.
AB - The main objective of this research work is to develop a new low-cost isolated three-level ac-dc power converter topology with a reduced number of switches. Existing three-level converter topologies change ac power to dc power while maintaining requirements set by international standards for power conversion. These types of converters have significant conduction losses due to high currents in the low-voltage side and high costs, mainly when using several active devices in series or in parallel to achieve high-voltage and high-power levels. The proposed topology replaces the conventional three-level converters in the secondary side by only two controlled devices and four diodes while still maintaining the basic functionality of a three-level converter. Furthermore, simulation results for a 25-kW case study and experimental results on a 900-W scale-down prototype demonstrate the feasibility of the proposed ideas.
KW - Isolated three-level ac-dc converter
KW - low-cost ac-dc converter
KW - power factor correction (PFC)
KW - solid-state transformer (SST)
UR - http://www.scopus.com/inward/record.url?scp=85100153123&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2019.2962704
DO - 10.1109/JESTPE.2019.2962704
M3 - Article
AN - SCOPUS:85100153123
SN - 2168-6777
VL - 9
SP - 1052
EP - 1063
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 1
M1 - 8944062
ER -
