TY - GEN
T1 - Fixed duty cycle compensation and magnetizing current design for DAB DC-DC converter with conventional trapezoidal modulation to achieve zero voltage switching
AU - Xu, Guo
AU - Xu, Yaxiong
AU - Sha, Deshang
AU - Liao, Xiaozhong
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/7/13
Y1 - 2016/7/13
N2 - The conventional trapezoidal modulation (TZM) control can ensure dual active bridge (DAB) DC-DC converters work without non-active power, resulting in low circulating loss. However, zero voltage switching (ZVS) capability for half of the power switches is lost. To achieve ZVS for all the power switches, fixed duty cycle compensation and magnetizing current design are proposed in this paper. It is suited for the dual active bridge DC-DC converter with TZM control, of which four power switches cannot achieve ZVS. The fixed duty cycle compensation is applied to create small bias current to ensure ZVS of the two switches in one bridge leg regardless of the load. ZVS of the other two power switches is obtained by the magnetizing current design. As a result, all the power switches of dual active bridge DC-DC converter can achieve ZVS and four switches can be turned off with very low current. A 1.6kW laboratory prototype is built to verify the effectiveness of the proposed method.
AB - The conventional trapezoidal modulation (TZM) control can ensure dual active bridge (DAB) DC-DC converters work without non-active power, resulting in low circulating loss. However, zero voltage switching (ZVS) capability for half of the power switches is lost. To achieve ZVS for all the power switches, fixed duty cycle compensation and magnetizing current design are proposed in this paper. It is suited for the dual active bridge DC-DC converter with TZM control, of which four power switches cannot achieve ZVS. The fixed duty cycle compensation is applied to create small bias current to ensure ZVS of the two switches in one bridge leg regardless of the load. ZVS of the other two power switches is obtained by the magnetizing current design. As a result, all the power switches of dual active bridge DC-DC converter can achieve ZVS and four switches can be turned off with very low current. A 1.6kW laboratory prototype is built to verify the effectiveness of the proposed method.
KW - TZM control
KW - dual active bridge
KW - duty cycle compensation
KW - magnetizing current design
UR - http://www.scopus.com/inward/record.url?scp=84983371763&partnerID=8YFLogxK
U2 - 10.1109/IPEMC.2016.7512325
DO - 10.1109/IPEMC.2016.7512325
M3 - Conference contribution
AN - SCOPUS:84983371763
T3 - 2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
SP - 433
EP - 438
BT - 2016 IEEE 8th International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE International Power Electronics and Motion Control Conference, IPEMC-ECCE Asia 2016
Y2 - 22 May 2016 through 26 May 2016
ER -