RT Journal Article
A1 Bor-Ren Lin

PB iet
T1 Hybrid full-bridge converter for DC microgrids: analysis and implementation
JN IET Power Electronics
VO 11
IS 5
SP 817
OP 824
AB This study presents a soft-switching converter for direct current microgrid applications. The studied converter includes n cells of the hybrid full-bridge converter with primary-series–secondary-parallel connection for high-voltage input and large current output applications. Thus, the voltage stress of power switches and the current stress of rectifier diodes are decreased. Therefore, the low-voltage stress and low conduction resistance of power metal–oxide–semiconductor field-effect transistors are utilised in the studied converter to reduce conduction losses on power switches. The flying capacitors are connected between each circuit cell to prevent voltage unbalance on input split capacitors. On each circuit cell, a full-bridge converter with an additional half-bridge circuit is employed to achieve low circulating current losses, less output inductance and a wide range of zero-voltage switching. Finally, the studied converter with 1800 W rated power is constructed and tested to verify the theoretical analysis.
K1 low circulating current
K1 conduction loss reduction
K1 primary-series-secondary-parallel connection
K1 power switch
K1 power metal-oxide-semiconductor field-effect transistor
K1 half-bridge circuit
K1 rectifier diode
K1 flying capacitor
K1 DC microgrid application
K1 soft-switching converter
K1 power 1800 W
K1 low-voltage stress
K1 input split capacitor
K1 low conduction resistance
K1 zero-voltage switching
K1 current stress
K1 direct current microgrid application
K1 hybrid full-bridge converter
DO https://doi.org/10.1049/iet-pel.2017.0504
UL https://digital-library.theiet.org/;jsessionid=agouh52842utn.x-iet-live-01content/journals/10.1049/iet-pel.2017.0504
LA English
SN 1755-4535
YR 2018
OL EN