TY - JOUR
T1 - A Three-Phase Triple-Voltage Dual-Active-Bridge Converter for Medium Voltage DC Transformer to Reduce the Number of Submodules
AU - Shu, Liangcai
AU - Chen, Wu
AU - Li, Rongguan
AU - Zhang, Ke
AU - Deng, Fujin
AU - Yuan, Yubo
AU - Wang, Tao
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2020/11
Y1 - 2020/11
N2 - In order to improve the power density of dc transformer (DCT), this article proposes a novel three-phase dual-active-bridge (DAB) dc-dc converter, which possesses triple input voltage of conventional full-bridge DAB converter without increasing the voltage stress of switches. By adopting it as the DCT submodule (SM), the number of SMs in DCT is reduced markedly and power density can be improved. Based on the analysis of operation principle, design procedure, basic control strategy and startup scheme of the proposed three-phase triple-voltage DAB (T2-DAB) converter are presented. Then, the feasibility of proposed converter is verified with simulation and a 2 kW, 600/200 V prototype. Finally, the superiority of the DCT scheme based on proposed T2-DAB converter is verified by a comparison with some existing DAB schemes.
AB - In order to improve the power density of dc transformer (DCT), this article proposes a novel three-phase dual-active-bridge (DAB) dc-dc converter, which possesses triple input voltage of conventional full-bridge DAB converter without increasing the voltage stress of switches. By adopting it as the DCT submodule (SM), the number of SMs in DCT is reduced markedly and power density can be improved. Based on the analysis of operation principle, design procedure, basic control strategy and startup scheme of the proposed three-phase triple-voltage DAB (T2-DAB) converter are presented. Then, the feasibility of proposed converter is verified with simulation and a 2 kW, 600/200 V prototype. Finally, the superiority of the DCT scheme based on proposed T2-DAB converter is verified by a comparison with some existing DAB schemes.
KW - DC transformer (DCT)
KW - power density
KW - three-phase dual-activebridge (T2-DAB) converter
KW - voltage stress
UR - https://www.scopus.com/pages/publications/85089308409
U2 - 10.1109/TPEL.2020.2988280
DO - 10.1109/TPEL.2020.2988280
M3 - 文章
AN - SCOPUS:85089308409
SN - 0885-8993
VL - 35
SP - 11574
EP - 11588
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 11
M1 - 9072572
ER -