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Phase-shift-modulation for a current-fed isolated DC-DC converter in more electric aircraft

Chen, Linglin; Tarisciotti, Luca; Costabeber, Alessandro; Guan, Quanxue; Wheeler, Patrick; Zanchetta, Pericle

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Linglin Chen

Luca Tarisciotti

Alessandro Costabeber

Quanxue Guan

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Professor of Power Electronic Systems


A Phase-Shift-Modulation (PSM) technique is proposed for an Active-Bridge-Active-Clamp (ABAC) topology. This topology is aimed for high power more-electric-aircraft applications. The proposed PSM has a complete switching harmonics cancellation on the low voltage terminal, independently of the operating conditions by effectively interleaving inductor currents. This results in a DC current at the low voltage terminal without any AC components, thus minimizing the passive filtering requirements. Additionally, when terminal voltages vary from their nominal values, the maximum power transfer capability of the ABAC converter can be greatly improved by using the proposed PSM. In this paper, the limitations of the conventional modulation technique for the ABAC converter are introduced and analysed. Then, a PSM scheme is proposed, which can provide high quality power on the low voltage terminal whilst maintaining high power transfer capability and efficiency in a wide operating range. The theoretical claims are validated by both simulation and experimental results on a 10kW 270V/28V ABAC converter.

Journal Article Type Article
Acceptance Date Dec 14, 2018
Online Publication Date Dec 27, 2018
Publication Date 2019-09
Deposit Date Feb 8, 2019
Publicly Available Date Feb 11, 2019
Journal IEEE Transactions on Power Electronics
Print ISSN 0885-8993
Electronic ISSN 1941-0107
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 34
Issue 9
Pages 8528-8543
Keywords Bridge circuits; Clamps ; Topology; Inductors ; Zero voltage switching; Switches ; Low voltage
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