TY - JOUR
T1 - Optimal Asymmetric Duty Modulation to Minimize Inductor Peak-To-Peak Current for Dual Active Bridge DC-DC Converter
AU - Mou, Di
AU - Luo, Quanming
AU - Wang, Zhiqing
AU - Li, Jia
AU - Wei, Yuqi
AU - Shi, Haochen
AU - Du, Xiong
N1 - Publisher Copyright:
© 1986-2012 IEEE.
PY - 2021/4
Y1 - 2021/4
N2 - Asymmetric duty modulation (ADM), as a recently proposed modulation scheme, provides new chance to improve the performance of dual active bridge (DAB) converter. On this basis, an optimal ADM (OADM) scheme is proposed in this article to minimize the inductor peak-To-peak current over the whole voltage and power range. First, the DAB converter adopting ADM scheme is analyzed in frequency-domain and time-domain, and four operating modes are established. Then, the minimum peak-To-peak inductor current for each operating mode is obtained under Karush-Kuhn-Tucker condition, and the corresponding optimal closed-loop control with low calculation complexity is derived. Then, the key values and features of the OADM scheme are compared with recent state of the art, mainly including the inductor root mean square current and soft-switching performance. Finally, an experimental prototype was built to validate the efficiency enhancement of the converter by adopting the proposed OADM scheme.
AB - Asymmetric duty modulation (ADM), as a recently proposed modulation scheme, provides new chance to improve the performance of dual active bridge (DAB) converter. On this basis, an optimal ADM (OADM) scheme is proposed in this article to minimize the inductor peak-To-peak current over the whole voltage and power range. First, the DAB converter adopting ADM scheme is analyzed in frequency-domain and time-domain, and four operating modes are established. Then, the minimum peak-To-peak inductor current for each operating mode is obtained under Karush-Kuhn-Tucker condition, and the corresponding optimal closed-loop control with low calculation complexity is derived. Then, the key values and features of the OADM scheme are compared with recent state of the art, mainly including the inductor root mean square current and soft-switching performance. Finally, an experimental prototype was built to validate the efficiency enhancement of the converter by adopting the proposed OADM scheme.
KW - Asymmetric duty modulation (ADM)
KW - dual active bridge (DAB)
KW - peak-To-peak current
KW - root-mean-square (rms) current
KW - zero voltage switching (ZVS)
UR - http://www.scopus.com/inward/record.url?scp=85097338229&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2020.3025120
DO - 10.1109/TPEL.2020.3025120
M3 - Article
AN - SCOPUS:85097338229
SN - 0885-8993
VL - 36
SP - 4572
EP - 4584
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 4
M1 - 9200762
ER -