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A Multiport Power Conversion System for the More Electric Aircraft

Gu, Chunyang; Yan, Hao; Yang, Jiajun; Sala, Giacomo; De Gaetano, Daniele; Wang, Xuchen; Galassini, Alessandro; Degano, Michele; Zhang, Xin; Buticchi, Giampaolo

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Chunyang Gu

Hao Yan

Jiajun Yang

Giacomo Sala

Daniele De Gaetano

Xuchen Wang

Alessandro Galassini

Professor of Advanced Electrical Machines

Xin Zhang

Giampaolo Buticchi


In more electric aircraft (MEA), weight reduction and energy efficiency constitute the key figures. In addition, the safety and continuity of operation of its electrical power distribution system (EPDS) are of critical importance. These sets of desired features are in disagreement with each other because higher redundancy, needed to guarantee the safety of operation, implies additional weight. In fact, EPDS is usually divided into isolated sections that need to be sized for the worst case scenario. Several concepts of EPDS have been investigated, aiming at enabling the power exchange among separate sections, which allows better optimization for power and weight of the whole system. In this article, an approach based on the widespread use of multiport power converters for both dc/dc and dc/ac stages is proposed. System integration of these two is proposed as a multiport power conversion system (MPCS), which allows a ring power distribution, while galvanic isolation is still maintained, even in fault conditions. Thus, the redundancy of MEA is established by no significant weight increase. A machine design analysis shows how the segmented machine could offer superior performance to the traditional one with the same weight. Simulation and experimental verifications show the system feasibility in both normal and fault operations.


Gu, C., Yan, H., Yang, J., Sala, G., De Gaetano, D., Wang, X., …Buticchi, G. (2020). A Multiport Power Conversion System for the More Electric Aircraft. IEEE Transactions on Transportation Electrification, 6(4), 1707-1720.

Journal Article Type Article
Acceptance Date Aug 15, 2020
Online Publication Date Aug 25, 2020
Publication Date 2020-12
Deposit Date Jan 7, 2021
Publicly Available Date Jan 7, 2021
Journal IEEE Transactions on Transportation Electrification
Electronic ISSN 2332-7782
Peer Reviewed Peer Reviewed
Volume 6
Issue 4
Pages 1707-1720
Public URL
Publisher URL
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