TY - GEN
T1 - Dead-time effect on the CLLC-type DC transformer in hybrid AC/DC microgrid with 50% duty ratio control scheme
AU - Huang, Jingjing
AU - Zhang, Xin
AU - Zhu, Shouyu
AU - Zhou, Qing
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/6
Y1 - 2018/7/6
N2 - In the hybrid AC/DC microgrid, the DC transformer (DCT) becomes more competitive than the conventional line frequency AC transformer (ACT) to connect the AC and DC bus together with a bidirectional interlinking converter (BIC) due to the high frequency, high power density, adjustable characteristics, etc. However, the DCT exhibits the different characteristics when applied in the hybrid AC/DC microgrid. Thus, the impact on DCT induced by the switching dead-time is analyzed in this paper. The CLLC-type DCT is firstly selected to ensure the forward and backward power transmission. Afterwards, the 50% duty ration(DR) control scheme is employed to not increase the complexity of the hybrid AC/DC microgrid. Meanwhile, a systematic analysis of the DCT involving the operation principle, the input power as well as the soft-switching has also been presented with the consideration of the switch dead-time under the 50% DR control scheme. Lab-scale prototype for DCT and hybrid AC/DC microgrid have been developed for experimental verifications. All of the theoretical analysis has been experimentally verified in the full power range.
AB - In the hybrid AC/DC microgrid, the DC transformer (DCT) becomes more competitive than the conventional line frequency AC transformer (ACT) to connect the AC and DC bus together with a bidirectional interlinking converter (BIC) due to the high frequency, high power density, adjustable characteristics, etc. However, the DCT exhibits the different characteristics when applied in the hybrid AC/DC microgrid. Thus, the impact on DCT induced by the switching dead-time is analyzed in this paper. The CLLC-type DCT is firstly selected to ensure the forward and backward power transmission. Afterwards, the 50% duty ration(DR) control scheme is employed to not increase the complexity of the hybrid AC/DC microgrid. Meanwhile, a systematic analysis of the DCT involving the operation principle, the input power as well as the soft-switching has also been presented with the consideration of the switch dead-time under the 50% DR control scheme. Lab-scale prototype for DCT and hybrid AC/DC microgrid have been developed for experimental verifications. All of the theoretical analysis has been experimentally verified in the full power range.
KW - 50% Duty Ratio Control
KW - CLLC
KW - DC Transformer (DCT)
KW - Deadtime
KW - Dual Active Bridge(DAB)
KW - Hybrid AC/DC Microgrid
KW - Soft Switching
UR - https://www.scopus.com/pages/publications/85050881765
U2 - 10.1109/CCDC.2018.8407189
DO - 10.1109/CCDC.2018.8407189
M3 - 会议稿件
AN - SCOPUS:85050881765
T3 - Proceedings of the 30th Chinese Control and Decision Conference, CCDC 2018
SP - 530
EP - 534
BT - Proceedings of the 30th Chinese Control and Decision Conference, CCDC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 30th Chinese Control and Decision Conference, CCDC 2018
Y2 - 9 June 2018 through 11 June 2018
ER -