Outputs (39)

Advancements in Electrical Machines for Aircraft Propulsion (2025)
Journal Article
Gerada, D., Zhang, F., Jiang, J., Zhang, X., Zou, T., Xu, Z., & Gerada, C. (2025). Advancements in Electrical Machines for Aircraft Propulsion. IEEJ Journal of Industry Applications, 14(3), 468-476. https://doi.org/10.1541/ieejjia.24010320

Electrical machines are at the center of future aircraft propulsion architectures, and their improvement is key in increasing the market uptake of cleaner transport. This paper investigates recent/ongoing improvements within the constituent technolog... Read More about Advancements in Electrical Machines for Aircraft Propulsion.

Optimization and Comparison of 1MW-Class PM Motors for Aircraft Propulsion Using Litz Wire and Hairpin Windings (2025)
Journal Article
Huynh, A. T., Huang, H., Jiang, J., Zou, T., Gerada, D., Yang, T., & Gerada, C. (2025). Optimization and Comparison of 1MW-Class PM Motors for Aircraft Propulsion Using Litz Wire and Hairpin Windings. IEEE Transactions on Magnetics, https://doi.org/10.1109/tmag.2025.3547237

Choosing the right winding technology is key to maximizing power density and efficiency in electric aircraft propulsion. This paper presents a two-level optimization strategy to evaluate Litz wire and hairpin winding configurations in two 1 MW-class... Read More about Optimization and Comparison of 1MW-Class PM Motors for Aircraft Propulsion Using Litz Wire and Hairpin Windings.

In-Slot Oil Cooling Arrangement of Hairpin Windings for High Power Density EV Traction Motors (2024)
Presentation / Conference Contribution
Mifsud, L. P., Connor, P. H., Walker, A., Zou, T., Huang, H., Ren, X., Batho, G., Tweedy, O., Gerada, C., & Egger, C. (2024, October). In-Slot Oil Cooling Arrangement of Hairpin Windings for High Power Density EV Traction Motors. Presented at 2024 IEEE Vehicle Power and Propulsion Conference, VPPC 2024, Washington, DC, USA

Ambitious electrification roadmaps for the automotive industry have prompted a revolution in winding technology for traction motors in electric vehicles (EV). Hairpin windings with reduced power losses and improved coolability are overtaking the mark... Read More about In-Slot Oil Cooling Arrangement of Hairpin Windings for High Power Density EV Traction Motors.

High Pole Number Outer-Rotor SPM Machine for Sustainable 150kW High-Speed EV Traction (2024)
Presentation / Conference Contribution
Walker, A., Zou, T., Mifsud, L. P., Connor, P., Huang, H., Ren, X., Batho, G., Tweedy, O., Gerada, C., & Kaloun, A. (2024, October). High Pole Number Outer-Rotor SPM Machine for Sustainable 150kW High-Speed EV Traction. Presented at 2024 IEEE Vehicle Power and Propulsion Conference, VPPC 2024, Washington, DC, USA

The ambitious roadmaps of electric vehicle (EV) powertrains are pushing traction motors to achieve step-change performance improvements in power density, efficiency, and cost by 2035. Limited by technology bricks such as materials, manufacturing and... Read More about High Pole Number Outer-Rotor SPM Machine for Sustainable 150kW High-Speed EV Traction.

Suspension Force-Coupling Analysis of Flux-Reversal Bearingless Slice Motor Based on Advanced Magnetic Field Model (2024)
Journal Article
Liu, J., Qu, R., Li, D., Kong, W., Zou, T., & Sun, X. (2024). Suspension Force-Coupling Analysis of Flux-Reversal Bearingless Slice Motor Based on Advanced Magnetic Field Model. IEEE Transactions on Transportation Electrification, 10(4), 8189-8198. https://doi.org/10.1109/TTE.2024.3370242

Flux-reversal bearingless slice motor with direct suspension current (DC-FRBLM) is a novel slice bearingless motor. The robust rotor structure of the DC-FRBLM brings benefits including high compactness and ease of manufacturing. However, the disparat... Read More about Suspension Force-Coupling Analysis of Flux-Reversal Bearingless Slice Motor Based on Advanced Magnetic Field Model.

Design and Controllability Trade-Off in Dual Three-Phase Winding PMSMs (2023)
Presentation / Conference Contribution
Zhu, S., Qayyum, N., Ernest, E., Paciura, K., Zou, T., & Gerada, C. (2023, October). Design and Controllability Trade-Off in Dual Three-Phase Winding PMSMs. Presented at 2023 IEEE Energy Conversion Congress and Exposition (ECCE), Nashville, TN, USA

Designing and controlling dual three-phase motor poses significant challenges. The conventional mathematical model of such motors only considers fundamental components, thereby failing to capture the complete characteristics of the motors. In this st... Read More about Design and Controllability Trade-Off in Dual Three-Phase Winding PMSMs.

Comparative Study on Stranded and Hairpin Windings for 350kW EV Traction Motor (2023)
Presentation / Conference Contribution
Jiang, J., Zou, T., Rocca, S. L., Gerada, D., & Gerada, C. (2023, November). Comparative Study on Stranded and Hairpin Windings for 350kW EV Traction Motor. Presented at 2023 26th International Conference on Electrical Machines and Systems (ICEMS), Zhuhai, China

Hairpin winding is a key technology for traction motors to meet the step-change requirements on power density and efficiency in electrical vehicle (EV) industry. This winding solution features inherently high slot fill factor and improved heat dissip... Read More about Comparative Study on Stranded and Hairpin Windings for 350kW EV Traction Motor.

Multi-objective Optimizations of Copper and Aluminum Hairpin Windings: a Comparison (2023)
Presentation / Conference Contribution
Cutuli, G., Nuzzo, S., Zou, T., Franceschini, G., Gerada, C., & Barater, D. (2023, October). Multi-objective Optimizations of Copper and Aluminum Hairpin Windings: a Comparison. Presented at 2023 IEEE Energy Conversion Congress and Exposition (ECCE), Nashville, TN, USA

This work critically analyzes the possibility of adopting aluminum hairpin windings as alternative to copper in electric traction machines for automotive applications. Copper and aluminum hairpin winding solutions are compared based on two proposed s... Read More about Multi-objective Optimizations of Copper and Aluminum Hairpin Windings: a Comparison.

Design of Hairpin Winding and Random Winding Stators for High Speed Heavy-Duty Traction Motor (2023)
Presentation / Conference Contribution
Jiang, J., Zou, T., La Rocca, A., La Rocca, S., Liu, C., Xu, Z., Gerada, C., Zhu, S., Paciura, K., & Gerada, D. (2023, October). Design of Hairpin Winding and Random Winding Stators for High Speed Heavy-Duty Traction Motor. Presented at 2023 IEEE Vehicle Power and Propulsion Conference (VPPC), Milan, Italy

Hairpin winding with rectangularly shaped conductors are gradually replacing random winding wound with stranded wires in electric vehicle (EV) industry. As the newgeneration winding technology, hairpin winding features high electromagnetic and therma... Read More about Design of Hairpin Winding and Random Winding Stators for High Speed Heavy-Duty Traction Motor.

A Computationally Efficient Semi-Analytical Method for Circulating Current Loss of High Speed Permanent Magnet Machines (2023)
Journal Article
Li, L., Fan, X., Liu, Z., Li, D., Zou, T., Chen, X., & Qu, R. (2024). A Computationally Efficient Semi-Analytical Method for Circulating Current Loss of High Speed Permanent Magnet Machines. IEEE Transactions on Energy Conversion, 39(1), 675-687. https://doi.org/10.1109/tec.2023.3312648

This article proposes a computationally efficient (CE) semi-analytical method for winding power loss calculation of high speed permanent magnet machines induced by circulating current. It combines a CE magnetostatic finite element method (FEM) for ra... Read More about A Computationally Efficient Semi-Analytical Method for Circulating Current Loss of High Speed Permanent Magnet Machines.