Small-signal model of the two-phase interleaved coupled-inductor boost converter
Barry, Brendan C.
Hayes, John G.
Rylko, Marek S.
Ryan, Robert T.
Institute of Electrical and Electronics Engineers (IEEE)
A coupled-inductor dc-dc converter has several modes of operation in continuous-conduction mode (CCM) and discontinuous-conduction mode (DCM), and is quite complex. This paper presents the derivation of the complete small-signal model of a two-phase interleaved dc-dc boost converter utilizing a single-core coupled-inductor operating in both CCM and DCM. Several small-signal models are required to fully model the converter due to the complexity of the converter operating in DCM. The transfer functions are then derived from these small-signal models. The theoretical analysis is validated experimentally using frequency sweeps from a 1-kW prototype.
Inductors , Switches , Inductance , Mathematical model , Transfer functions , Capacitors , DC-DC power converters
Barry, B. C., Hayes, J. G., Rylko, M. S., Stala, R., Penczek, A., Mondzik, A. and Ryan, R. T. (2017) 'Small-signal model of the two-phase interleaved coupled-inductor boost converter', IEEE Transactions on Power Electronics, 33(9), pp. 8052-8064. doi: 10.1109/TPEL.2017.2765920
© 2017, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.