TY - GEN
T1 - A Three-Phase Dual-Active-Bridge DC-DC Immittance Converter
AU - Khan, Akif Zia
AU - Loo, Ka Hong
AU - Lai, Yuk Ming
PY - 2018/9/23
Y1 - 2018/9/23
N2 - A three-phase dual-active-bridge (3p-DAB) DC-DC converter employing three-phase resonant immittance network (3p-RIN) has been proposed in this paper to attain unity power factor operation at both ac-links of the 3p-DAB converter for mitigating the reactive power loss. Besides unity power factor operation, the proposed converter can perform full ZVS operation as well for all the switches to minimize the switching power loss. The unity power factor operation is performed by keeping the primary and secondary bridge voltages in phase whereas the full ZVS operation is performed by keeping the primary and secondary bridge voltages in lagging phase relationship. For unity power factor operation, the power flow through the converter is regulated by modulating the internal phase shift angle, whereas for full ZVS operation, the power flow is modulated utilizing both internal and external phase-shift angles. Fundamental component analysis for voltages and currents of 3p-RIN is used to carry out the detailed modeling of the converter followed by the validation from a 400 V/220 V, 2 kW hardware prototype for benchmarking the cogency of the proposed topology. The hardware prototype has been operated in both unity power factor and full ZVS modes of operation. More superior performance was discerned for the unity power factor operation as compared to the full ZVS mode of operation for the selected specifications of the prototype.
AB - A three-phase dual-active-bridge (3p-DAB) DC-DC converter employing three-phase resonant immittance network (3p-RIN) has been proposed in this paper to attain unity power factor operation at both ac-links of the 3p-DAB converter for mitigating the reactive power loss. Besides unity power factor operation, the proposed converter can perform full ZVS operation as well for all the switches to minimize the switching power loss. The unity power factor operation is performed by keeping the primary and secondary bridge voltages in phase whereas the full ZVS operation is performed by keeping the primary and secondary bridge voltages in lagging phase relationship. For unity power factor operation, the power flow through the converter is regulated by modulating the internal phase shift angle, whereas for full ZVS operation, the power flow is modulated utilizing both internal and external phase-shift angles. Fundamental component analysis for voltages and currents of 3p-RIN is used to carry out the detailed modeling of the converter followed by the validation from a 400 V/220 V, 2 kW hardware prototype for benchmarking the cogency of the proposed topology. The hardware prototype has been operated in both unity power factor and full ZVS modes of operation. More superior performance was discerned for the unity power factor operation as compared to the full ZVS mode of operation for the selected specifications of the prototype.
KW - DC-DC power conversion
KW - Immittance converters (ICs)
KW - Resonant power conversion
KW - Unity power factor
KW - Zero-voltage switching (ZVS)
UR - http://www.scopus.com/inward/record.url?scp=85060288169&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2018.8558332
DO - 10.1109/ECCE.2018.8558332
M3 - Conference article published in proceeding or book
AN - SCOPUS:85060288169
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 6336
EP - 6343
BT - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -