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Fault-Tolerant Dual Channels Three-Phase PMSM for Aerospace Applications (2024)
Journal Article
Khowja, M. R., Singh, K., la Rocca, A., Vakil, G., Ramnathan, R., & Gerada, C. (2024). Fault-Tolerant Dual Channels Three-Phase PMSM for Aerospace Applications. IEEE Access, 12, 126845-126857. https://doi.org/10.1109/ACCESS.2024.3451705

In safety-critical applications such as aerospace and marine, electrical machines are limited to meet several stringent requirements such as physical, electrical, magnetic and thermal isolation between two three-phase channels, in order to be conside... Read More about Fault-Tolerant Dual Channels Three-Phase PMSM for Aerospace Applications.

Acoustic characteristics of phase-synchronized adjacent propellers (2024)
Journal Article
Turhan, B., Jawahar, H. K., Gautam, A., Syed, S., Vakil, G., Rezgui, D., & Azarpeyvand, M. (2024). Acoustic characteristics of phase-synchronized adjacent propellers. Journal of the Acoustical Society of America, 155(5), 3242-3253. https://doi.org/10.1121/10.0025990

This experimental study investigates the effect of blade phase angle on noise attenuation in two adjacent, electronically synchronized propellers. Acoustic measurements were performed in an aeroacoustic wind tunnel with a distributed electric propuls... Read More about Acoustic characteristics of phase-synchronized adjacent propellers.

Active noise control by means of high frequency injection in electric motors (2024)
Journal Article
Skoulaxinos, S., Wheeler, P., & Vakil, G. (2024). Active noise control by means of high frequency injection in electric motors. IET Electric Power Applications, 18(8), 897-911. https://doi.org/10.1049/elp2.12442

Machine acoustics is an important area of research impacting the quality and comfort of human life. With increased levels of electrification and the wider use of electric motors, the contribution of motor drives towards quieter acoustic systems becom... Read More about Active noise control by means of high frequency injection in electric motors.

Non-Linear Modelling and Control of Permanent Magnet Synchronous Machine for Actuator Applications (2024)
Journal Article
Bobba, P. B., Vakil, G. I., Gajala, H., & Kumar, B. V. (2024). Non-Linear Modelling and Control of Permanent Magnet Synchronous Machine for Actuator Applications. International Journal of Integrated Engineering, 16(2), 58-65. https://doi.org/10.30880/ijie.2024.16.02.006

Permanent magnet synchronous motors grabbed the attention due to their intrinsic characteristics. Aerospace applications necessitate great dependability and while reducing weight, complication, fuel intake, working expenses, and environmental effects... Read More about Non-Linear Modelling and Control of Permanent Magnet Synchronous Machine for Actuator Applications.

Life Characterization of PEEK and Nanofilled Enamel Insulated Wires Under Thermal Ageing (2024)
Journal Article
Khowja, M. R., Vakil, G., Ahmad, S. S., Ramanathan, R., Gerada, C., & Benarous, M. (2024). Life Characterization of PEEK and Nanofilled Enamel Insulated Wires Under Thermal Ageing. IEEE Access, 12, 39470- 39483. https://doi.org/10.1109/access.2024.3374637

This paper characterizes and develops life models for two different wire insulating materials: Poly-ether-ketone (PEEK) and nanofilled enamel (Allotherm wire). The article focuses on predicting the lifespan of PEEK and Allotherm wire insulating mater... Read More about Life Characterization of PEEK and Nanofilled Enamel Insulated Wires Under Thermal Ageing.

Optimizing magnetic performance of Fe–50Ni alloy for electric motor cores through LPBF: A study of as-built and heat-treated scenarios (2024)
Journal Article
Ahmadnia, M., Fereiduni, E., Yakout, M., Elbestawi, M., R M, R. K., Vakil, G., & Muizelaar, R. (2024). Optimizing magnetic performance of Fe–50Ni alloy for electric motor cores through LPBF: A study of as-built and heat-treated scenarios. Journal of Materials Research and Technology, 29, 2554-2571. https://doi.org/10.1016/j.jmrt.2024.02.011

This study aims to identify the optimal combination of process variables for laser powder bed fusion (LPBF) of electric motor (EM) cores using Fe–50Ni alloy. A thorough analysis of mechanical and magnetic properties, with a focus on its dynamic magne... Read More about Optimizing magnetic performance of Fe–50Ni alloy for electric motor cores through LPBF: A study of as-built and heat-treated scenarios.

Manufacturable Edgewise Winding Solutions Considering Parallel Slot and Parallel Tooth Stator Structures (2023)
Presentation / Conference Contribution
George, L., Walker, A., Zhang, F., Vakil, G., & Gerada, C. (2023, December). Manufacturable Edgewise Winding Solutions Considering Parallel Slot and Parallel Tooth Stator Structures. Presented at 2023 IEEE 2nd Industrial Electronics Society Annual On-Line Conference (ONCON), SC, USA

Due to climate concerns, the push towards transportation electrification to deliver electric machines capable of high-power density performance is becoming increasingly critical. A key component of this is the structure and manufacture of the winding... Read More about Manufacturable Edgewise Winding Solutions Considering Parallel Slot and Parallel Tooth Stator Structures.

Airgap Length Analysis of a 350kW PM-Assisted Syn-Rel Machine for Heavy Duty EV Traction (2022)
Journal Article
Zou, T., Gerada, D., La Rocca, S., La Rocca, A., Walker, A., Vakil, G., Arevalo, . S. L., Xu, Z., Cui, M., Bardalai, A., Wang, M., Kumar, R. M. R., Marfoli, A., Paciura, . K., Barden, R., Ernest, E., Zhu, . S., Qayyum, N., McQueen, A., Zhang, F., & Gerada, C. (2023). Airgap Length Analysis of a 350kW PM-Assisted Syn-Rel Machine for Heavy Duty EV Traction. IEEE Transactions on Industry Applications, 59(2), 1557-1570. https://doi.org/10.1109/TIA.2022.3225255

Synchronous reluctance (Syn-Rel) machines with embedded permanent magnets (PMs) are research hotspots in variable speed motor drives due to their robust rotor structure and wide constant power speed range (CPSR). In this paper, the potential of PM-as... Read More about Airgap Length Analysis of a 350kW PM-Assisted Syn-Rel Machine for Heavy Duty EV Traction.

Correction: Khowja et al. Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor. Energies 2021, 14, 4564 (2022)
Journal Article
Khowja, M. R., Vakil, G., Gerada, C., Patel, C., Odhano, S., & Wheeler, P. (2022). Correction: Khowja et al. Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor. Energies 2021, 14, 4564. Energies, 15(19), 6972. https://doi.org/10.3390/en15196972

Error in Figure The authors would like to replace Figure 1 (in the published paper [1]—Figure 1: Helicopter electromechanical actuation system). The newfigurewhich needs to be replaced and updated in themanuscript is shown below (Figure presented.). Read More about Correction: Khowja et al. Integrated Motor Drive: Mass and Volume Optimization of the Motor with an Integrated Filter Inductor. Energies 2021, 14, 4564.

Cooling System Sizing using LPTN Analysis and Multiphysics Modelling for an Axial Flux Machine and Integrated Drive (2022)
Presentation / Conference Contribution
Jeffrey, A. J., Connor, P. H., Vakil, G., Evans, P., Wheeler, P., & Hart, S. (2022, September). Cooling System Sizing using LPTN Analysis and Multiphysics Modelling for an Axial Flux Machine and Integrated Drive. Presented at 2022 International Conference on Electrical Machines (ICEM), Valencia, Spain

In this paper a Lumped Parameter Thermal Network (LPTN) is proposed for a Yokeless and Segmented Armature (YASA) axial flux permanent magnet (AFPM) machine. A simulation model is used to examine the machine in isolation, with an Integrated Motor Driv... Read More about Cooling System Sizing using LPTN Analysis and Multiphysics Modelling for an Axial Flux Machine and Integrated Drive.