TY - GEN
T1 - Minimum Backflow Power Control of Bidirectional Isolated DC-DC Converters
AU - Wen, Huiqing
AU - Zheng, Lin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Bidirectional dual-active-bridge (DAB) DC-DC converter with the conventional single-phase-shift (SPS) control may cause large circulating current and high current stress. To overcome these drawbacks, extended-phase-shift (EPS) control can be used in order to improve the efficiency. Considering multiple possible optimization objectives and infinite phase-shift variables of EPS control, the backflow power of DAB converter is selected as the unique optimization objective. A mathematical algorithm is proposed to determine the minimum backflow power and optimal phase-shifting angles. Furthermore, a simple closed-loop control is adopted to alleviate the practical algorithm implementation burden in real-time digital microcontrollers. Both simulation and experimental results are provided to verify the performance of the proposed backflow-oriented algorithm.
AB - Bidirectional dual-active-bridge (DAB) DC-DC converter with the conventional single-phase-shift (SPS) control may cause large circulating current and high current stress. To overcome these drawbacks, extended-phase-shift (EPS) control can be used in order to improve the efficiency. Considering multiple possible optimization objectives and infinite phase-shift variables of EPS control, the backflow power of DAB converter is selected as the unique optimization objective. A mathematical algorithm is proposed to determine the minimum backflow power and optimal phase-shifting angles. Furthermore, a simple closed-loop control is adopted to alleviate the practical algorithm implementation burden in real-time digital microcontrollers. Both simulation and experimental results are provided to verify the performance of the proposed backflow-oriented algorithm.
KW - Backflow power
KW - Bidirectional DC-DC converter
KW - Closed-loop control
KW - Extended-phase-shift
KW - Transmission power
UR - http://www.scopus.com/inward/record.url?scp=85065961111&partnerID=8YFLogxK
U2 - 10.1109/PEDES.2018.8707825
DO - 10.1109/PEDES.2018.8707825
M3 - Conference Proceeding
AN - SCOPUS:85065961111
T3 - Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
BT - Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
Y2 - 18 December 2018 through 21 December 2018
ER -