TY - GEN
T1 - Transient Bias Suppression Optimization for Bidirectional 2/3-Level DC-DC Converters
AU - Bu, Qinglei
AU - Wen, Huiqing
AU - Zhu, Yinxiao
AU - Shi, Haochen
AU - Chu, Guanying
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China (52177195), China Postdoctoral Science Foundation (2021M691116), the Research development fund of XJTLU (RDF-16-01, RDF-17-01-02), the Research Enhancement fund of XJTLU (REF-17-01-02), the Suzhou Prospective Application programme (SYG202016), and the XJTLU Key Programme Special Fund (KSF-A-08, KSF-E-13, KSF-T-04).
Publisher Copyright:
© 2022 IEEJ-IAS.
PY - 2022
Y1 - 2022
N2 - The bidirectional 2/3-level DC-DC converter has attracted more and more attention because of its high power conversion ratio and lower switch stress compared with traditional DC-DC converters. It can be a good can-didate as the next power conversion interface for medium-voltage DC (MVDC) systems. Due to the changes in the phase-shift (PS) ratios, the traditional PS control may result in the dc-bias current in the transient-state. In order to solve this problem, the mechanism process of the dc-bias current during the transient-state will be analyzed first in this paper. Based on this analysis, the transient bias suppression optimization (TBSO) strategy will be proposed to mitigate the biased inductor current. Finally, simulation verification will be provided to prove the effectiveness of the proposed strategy.
AB - The bidirectional 2/3-level DC-DC converter has attracted more and more attention because of its high power conversion ratio and lower switch stress compared with traditional DC-DC converters. It can be a good can-didate as the next power conversion interface for medium-voltage DC (MVDC) systems. Due to the changes in the phase-shift (PS) ratios, the traditional PS control may result in the dc-bias current in the transient-state. In order to solve this problem, the mechanism process of the dc-bias current during the transient-state will be analyzed first in this paper. Based on this analysis, the transient bias suppression optimization (TBSO) strategy will be proposed to mitigate the biased inductor current. Finally, simulation verification will be provided to prove the effectiveness of the proposed strategy.
KW - 2/3-level DC-DC converter
KW - DC-bias current
KW - Dual-Active-Bridge converter
KW - Transient
UR - http://www.scopus.com/inward/record.url?scp=85134265418&partnerID=8YFLogxK
U2 - 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807089
DO - 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807089
M3 - Conference Proceeding
AN - SCOPUS:85134265418
T3 - 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia
SP - 2647
EP - 2652
BT - 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia
Y2 - 15 May 2022 through 19 May 2022
ER -
