System Wide Reliability Impact of Power Converters in More-Electric Aircraft Applications

The continued electrification of aircraft is required such that ambitious decarbonisation targets can be met. A significant challenge presented with this trend is the increased reliance on electrical systems to perform flight-critical operations in a manner that has not been seen in previous generations of aircraft. The power electronic converter is a key enabling technology in aircraft electrification. Its prevalence is such that the failure rate of flight critical-loads is closely linked with that of the associated power electronic converters. As such, there is a clear need to better understand the impact of improvements in both the reliability and failure estimation of novel power electronic converters at a systems level in future aerospace applications. Accordingly, this paper presents key highlights from literature on power converter research, summarising advances in reliability-enhancing features and more accurate Physics-of-Failure modelling methods. Simulation studies are then presented, which explore the impact of component-level advancements in power converters on the system-level failure rates and power system architecture configurations of flight-critical loads in more-electric aircraft applications.

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  • Supplemental Notes:
    • Abstract reprinted with permission of SAE International.
  • Authors:
    • Millar, Kieran
    • Fong, Kenny
    • Alzola, Rafael Peña
    • Norman, Patrick J
    • Burt, Graeme M
  • Conference:
    • 2023 AeroTech
    • Location: Fort Worth Texas, United States
    • Date: 2023-3-14 to 2023-3-16
  • Publication Date: 2023-3-7


  • English

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  • Accession Number: 01875886
  • Record Type: Publication
  • Source Agency: SAE International
  • Report/Paper Numbers: 2023-01-0991
  • Files: TRIS, SAE
  • Created Date: Mar 20 2023 4:14PM