A smart transformer-rectifier unit for the more electric aircraft

Buticchi, Giampaolo, Gerada, Chris, Ko, Young Jong and Liserre, Marco (2018) A smart transformer-rectifier unit for the more electric aircraft. In: 27th IEEE International Symposium on Industrial Electronics 2018, 13-15 June 2018, Cairns, QLD, Australia.

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In the framework of the More Electric Aircraft (MEA), an efficient and flexible power distribution system is of paramount importance. Considering the presence of both AC and DC loads at multiple voltage levels, the distribution system of the most modern aircrafts is intrinsically hybrid. In this scenario, the different buses are connected by AC/DC converters. The simplest approach is to use a Transformer-Rectifier Unit (TRU) based on a low-frequency transformer followed by passive rectifiers to perform the AC/DC conversion. This solution, however, is intrinsically uni-directional, introduces current harmonics in the AC side and can have a considerable size. This paper proposes the use of a Smart-TRU, based on a Cascaded H-Bridge topology and a multi-port DC/DC converter, to solve the issues of the traditional TRU, increasing the controllability of the system. Experiments show how the proposed STRU is resilient to faults in the AC side.

Item Type: Conference or Workshop Item (Paper)
Additional Information: © 2018 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.
Keywords: Aircraft; Bridge circuits; DC-DC converters; Electric power distribution; Electric rectifiers; Industrial electronics
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > School of Aerospace
Identification Number: https://doi.org/10.1109/ISIE.2018.8433784
Depositing User: QIU, Lulu
Date Deposited: 09 Oct 2018 08:28
Last Modified: 09 Oct 2018 08:28
URI: https://eprints.nottingham.ac.uk/id/eprint/55161

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