TY - GEN
T1 - An Integrated Magnetic Structure for Bi-Directional Two-Channel Interleaved Boost Converter with Coupled Inductor
AU - Mirza, Abdul Basit
AU - Emon, Asif Imran
AU - Vala, Sama Salehi
AU - Luo, Fang
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - The channel current in an interleaved boost converter consists of circulating Differential Mode (DM) current and Common Mode (CM) boost current. Inverse-coupling between inductors, compared with the uncoupled case, offers reduced channel current ripple. However, its leakage inductance, that serves as boost inductor, is difficult to control. Hence, a cascade of two perfectly coupled inductors, inverse (DM inductance) and direct (CM inductance), is preferred. The DM and CM currents and their ripples depend on these inductances. Nonetheless, this approach results in increased size of magnetics. In this paper, an integrated inductor, based on gapped EE-core is proposed, that combines both CM and DM inductances in a single core. The CM and DM inductances are independent and can be controlled separately by their winding turns. A reluctance model is derived, and a design procedure is developed where core parameters are expressed in terms of converter parameters. Finally, the proposed concept is validated through a 330W, 100 V to 168 V prototype.
AB - The channel current in an interleaved boost converter consists of circulating Differential Mode (DM) current and Common Mode (CM) boost current. Inverse-coupling between inductors, compared with the uncoupled case, offers reduced channel current ripple. However, its leakage inductance, that serves as boost inductor, is difficult to control. Hence, a cascade of two perfectly coupled inductors, inverse (DM inductance) and direct (CM inductance), is preferred. The DM and CM currents and their ripples depend on these inductances. Nonetheless, this approach results in increased size of magnetics. In this paper, an integrated inductor, based on gapped EE-core is proposed, that combines both CM and DM inductances in a single core. The CM and DM inductances are independent and can be controlled separately by their winding turns. A reluctance model is derived, and a design procedure is developed where core parameters are expressed in terms of converter parameters. Finally, the proposed concept is validated through a 330W, 100 V to 168 V prototype.
KW - CM and DM inductance.
KW - Coupled Inductor
KW - EE-core
KW - Integrated Magnetic Structure
KW - Interleaved Boost Converter
UR - https://www.scopus.com/pages/publications/85123376128
U2 - 10.1109/ECCE47101.2021.9596045
DO - 10.1109/ECCE47101.2021.9596045
M3 - Conference contribution
AN - SCOPUS:85123376128
T3 - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
SP - 5466
EP - 5470
BT - 2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Y2 - 10 October 2021 through 14 October 2021
ER -