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Failure modes and reliability oriented system design for aerospace power electronic converters

Harikumaran, Jayakrishnan; Migliazza, Giovanni; Buticchi, Giampaolo; Madonna, Vincenzo; Giangrande, Paolo; Costabeber, Alessandro; Wheeler, Pat; Galea, Michael

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Authors

Jayakrishnan Harikumaran

Giovanni Migliazza

Giampaolo Buticchi

Vincenzo Madonna

Paolo Giangrande

Alessandro Costabeber

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PATRICK WHEELER pat.wheeler@nottingham.ac.uk
Professor of Power Electronic Systems

Michael Galea



Abstract

Aircraft electrification has been a major trend in aviation industry for past 20 years. Given the increasing electrical power requirement for future more electric aircraft and hybrid electric aircraft, research efforts has been ongoing in high power electrical conversion for air-borne systems. Safety critical nature of aviation systems places reliability of aerospace power converters as a critical design concern. In this paper, power electronic system reliability is studied with emphasis on lifetime limiting factors of critical sub components. Reliability of voltage source power converters at different system voltage levels are modelled for a starter generator drive converter. A key observation is that Si IGBT devices are sufficient with respect to reliability requirements in low and medium voltage systems (up to 540 V). At higher system voltages (above 540 V), multi level topologies are necessary for designing with Si IGBTs. In constant power profile drive, system reliability is minimally affected by wear-out failure of film capacitors in converter DC links. In multi level topologies without enhanced voltage derating, system reliability is dominated by cosmic ray induced random failures. Simulation results demonstrate that at high system voltages (810 V), 2 L topology with SiC mosfets outperform Si IGBT based 3 L topology with respect to reliability.

Citation

Harikumaran, J., Migliazza, G., Buticchi, G., Madonna, V., Giangrande, P., Costabeber, A., …Galea, M. (2021). Failure modes and reliability oriented system design for aerospace power electronic converters. IEEE Open Journal of the Industrial Electronics Society, 2, 53-64. https://doi.org/10.1109/OJIES.2020.3047201

Journal Article Type Article
Acceptance Date Dec 14, 2020
Online Publication Date Dec 24, 2020
Publication Date Jan 16, 2021
Deposit Date Jan 22, 2021
Publicly Available Date Mar 29, 2024
Journal IEEE Open Journal of the Industrial Electronics Society
Print ISSN 2644-1284
Electronic ISSN 2644-1284
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 2
Pages 53-64
DOI https://doi.org/10.1109/OJIES.2020.3047201
Keywords Lifetime estimation, Mission pro?le, More Electric Aircraft, Multi level converter, Physic of failure, Reliability
Public URL https://nottingham-repository.worktribe.com/output/5205595
Publisher URL https://ieeexplore.ieee.org/document/9306785

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