Mild Hybridization of Turboprop Engine With High-Power-Density Integrated Electric Drives

Chen, Yuzheng; Yang, Tao; Khowja, Muhammad Raza; La Rocca, Antonino; Nasir, Usman; Chowdhury, Shajjad; Evans, Dean; Kember, Dafydd; Klonowski, Thomas; Arnaud, Yohan; Apostin, Lucie; Liger, Thierry; Cossart, Grégory; Vakil, Gaurang; Gerada, Chris; Bozhko, Serhiy; Detry, Sebastien; Diette, Christophe; Wheeler, Patrick

Abstract

This article shares with the aerospace community a case study of turboprop mild hybridization using a recently developed integrated drive system in the University of Nottingham, U.K., within the ACHIEVE project under EU H2020 CleanSky 2 program (project No. 737814). The developed drive system enables the green taxiing of a turboprop aircraft while on the ground with its engine OFF and as an electrical generator when the turboprop is in the air. The entire system is designed to be able to integrate within the power auxiliary gearbox (PAGB) of a turboprop aircraft. Some of the key features of the developed system include a high-speed permanent magnet machine (up to 14200 rpm) with a dual-three-phase design, silicon carbide (SiC)-based high power density (11.8 kW/L for the power converter, and 35.3 kW/L and 7.2 kW/kg for the machine active parts), integrated cooling design for high-temperature operation ( >130 ∘C ambient temperature), fault tolerance consideration with dual-channel operation capabilities, and sensorless control for entire operational conditions. This article is giving an overview of the design process of the electrical machine, power converters, and the cooling of the entire drive. The numerical analysis [finite element method (FEM) and computational fluid dynamics (CFD)] and some experimental results are presented to demonstrate the effectiveness and the desired performance of the developed integrated drive system.

Citation

Chen, Y., Yang, T., Khowja, M. R., La Rocca, A., Nasir, U., Chowdhury, S., Evans, D., Kember, D., Klonowski, T., Arnaud, Y., Apostin, L., Liger, T., Cossart, G., Vakil, G., Gerada, C., Bozhko, S., Detry, S., Diette, C., & Wheeler, P. (2022). Mild Hybridization of Turboprop Engine With High-Power-Density Integrated Electric Drives. IEEE Transactions on Transportation Electrification, 8(4), 4148-4162. https://doi.org/10.1109/TTE.2022.3160153

• Journal Article Type: Article
• Acceptance Date: Mar 7, 2022
• Online Publication Date: Mar 16, 2022
• Publication Date: 2022-12
• Deposit Date: Nov 19, 2024
• Journal: IEEE Transactions on Transportation Electrification
• Electronic ISSN: 2332-7782
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 4
• Pages: 4148-4162
• DOI: https://doi.org/10.1109/TTE.2022.3160153
• Public URL: https://nottingham-repository.worktribe.com/output/36298299
• Publisher URL: https://ieeexplore.ieee.org/document/9736987