Abstract

Safety-critical power conversion systems play a major role in the paradigm shift towards more electric aircraft (MEA) architectures. This paper reviews the electrical machines and their power electronic systems that are currently competing in the application of integrated starter-generators (S/Gs) in MEA power systems. Motivated by the strict requirements of sufficient electrical starting capability, super-high power density and ultra-high reliability, additional considerations on the overall system design are necessary, including the power electronic converters (PECs) and integrated thermal designs. These aspects are discussed not only in the light of their many benefits but also of the challenges introduced by the continuous advancements and emerging innovations in the power conversion technology. In achieving the MEA goals and capitalize on all potential benefits, optimization-based design approaches will be necessary, where the aggregation of electric machines, PECs and the aircraft grid is considered as an integrated system to be optimized. This review highlights the importance of these aspects and offers a view on future perspectives and open issues.

Highlights

  • Over the last decades, the ongoing electrification of aircraft power systems has become an important research topic

  • The purpose of this review was to revisit the trends in the research and development of starter-generators (S/Gs) in the era of more electric aircraft (MEA) applications

  • The aim was to guide the reader in the understanding of the different aspects of the technologies involved which influences the speed of take-off of the new era of more electric aircraft

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Summary

A Technology Review

This paper reviews the electrical machines and their power electronic systems that are currently competing in the application of integrated starter-generators (S/Gs) in MEA power systems. Motivated by the strict requirements of sufficient electrical starting capability, super-high power density and ultra-high reliability, additional considerations on the overall system design are necessary, including the power electronic converters (PECs) and integrated thermal designs. These aspects are discussed in the light of their many benefits and of the challenges introduced by the continuous advancements and emerging innovations in the power conversion technology.

INTRODUCTION
Requirements for MEA applications
Single-Phase Brushless AE
Two-Phase Brushless AE
Three-Phase Brushless AE
Findings
DISCUSSIONS AND CONCLUSIONS
Full Text
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