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A Review of Powertrain Electrification for Greener Aircraft

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  • Xavier Roboam

    (Laplace (UMR CNRS-Toulouse INP-UPS), Université de Toulouse, ENSEEIHT 2 Rue Camichel, 31071 Toulouse, France)

Abstract

This review proposes an overview of hybrid electric and full electric powertrains dedicated to greener aircraft in the “sky decarbonization” context. After having situated the state of the art and context of energy hybridization in the aviation sector, we propose the visit of several architectures for powertrain electrification, situating the potential benefits but also the main challenges to be faced to takeoff these new solutions. Then, as a first example, we consider the EU project “HASTECS” (Hybrid Aircraft: reSearch on Thermal and Electric Components and Systems) in the framework of Clean Sky 2. It relates to a series hybrid chain integrated into a regional aircraft. This energy system integrates especially power electronics and electric machines with a high degree of integration, which raises the “thermal challenge” and the need to integrate cooling devices. Through the snowball effects typical of the aviation sector, this example emphasizes how important it is to “hunt for kilos”, an alternative solution consisting of eliminating the power electronics within the powertrain. This is why we propose a second example, which concerns an AC power channel without power electronics that only integrates synchronous magnet machines (generator and motor) directly coupled on an AC bus. This last architecture nevertheless raises questions in terms of stability, with one solution being to insert an auxiliary hybridization branch via battery storage. Theoretical analyses and experiments at a reduced power scale show the viability of this concept. Finally, some recommendations for future research with potential technological breakthroughs complete that review.

Suggested Citation

  • Xavier Roboam, 2023. "A Review of Powertrain Electrification for Greener Aircraft," Energies, MDPI, vol. 16(19), pages 1-36, September.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:19:p:6831-:d:1248377
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    References listed on IDEAS

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    1. Matthieu Pettes-Duler & Xavier Roboam & Bruno Sareni, 2022. "Integrated Optimal Design for Hybrid Electric Powertrain of Future Aircrafts," Energies, MDPI, vol. 15(18), pages 1-25, September.
    2. Tao Lei & Zhihao Min & Qinxiang Gao & Lina Song & Xingyu Zhang & Xiaobin Zhang, 2022. "The Architecture Optimization and Energy Management Technology of Aircraft Power Systems: A Review and Future Trends," Energies, MDPI, vol. 15(11), pages 1-37, June.
    3. Yaolong Liu & Ali Elham & Peter Horst & Martin Hepperle, 2018. "Exploring Vehicle Level Benefits of Revolutionary Technology Progress via Aircraft Design and Optimization," Energies, MDPI, vol. 11(1), pages 1-22, January.
    4. Michal Janovec & Jozef Čerňan & Filip Škultéty & Andrej Novák, 2021. "Design of Batteries for a Hybrid Propulsion System of a Training Aircraft," Energies, MDPI, vol. 15(1), pages 1-18, December.
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    Cited by:

    1. Kai Yang & Lu Zhang & Mengyao Wang & Chunyu Du, 2024. "Performance Comparison and Optimization of a PMSM Based on Hybrid-Type Permanent Magnet with Two Kinds of Rotor Topology," Energies, MDPI, vol. 17(3), pages 1-18, January.

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