Outputs (11)

Accurate FEA Modeling Approach for Calculating AC Copper Loss for Random Windings (2023)
Presentation / Conference Contribution
Dave, N., Gerada, D., Langlois, P., Lawton, A., Patel, R., & Gerada, C. (2023, November). Accurate FEA Modeling Approach for Calculating AC Copper Loss for Random Windings. Presented at 2023 26th International Conference on Electrical Machines and Systems (ICEMS), Zhuhai, China

With increased interest in transportation electrification, the accurate modelling and analysis technique of AC copper loss plays a crucial role in the design. The distributed wound stator is dominant in electric car motors due to their suitable chara... Read More about Accurate FEA Modeling Approach for Calculating AC Copper Loss for Random Windings.

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.

A Taguchi-LHS-RSM Double-Staged Approach for Design Optimization of Self-Ventilated Cooling Systems Utilized in PMSMs (2023)
Presentation / Conference Contribution
Zhu, G., Xu, Z., Zhang, F., Gerada, C., & Gerada, D. (2023, November). A Taguchi-LHS-RSM Double-Staged Approach for Design Optimization of Self-Ventilated Cooling Systems Utilized in PMSMs. Presented at 26th International Conference on Electrical Machines and Systems (ICEMS), Zhuhai, China

Thermal management is critical for high-power-density permanent magnet synchronous machines (PMSMs). To realize the efficient and effective design optimization of self-ventilated air cooling systems for PMSMs, in this paper, a Taguchi-preconditioned... Read More about A Taguchi-LHS-RSM Double-Staged Approach for Design Optimization of Self-Ventilated Cooling Systems Utilized in PMSMs.

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.

Experimental Simulation and Electromechanical Characterization of Dynamic Air Gap Eccentricity Faults in PMSG (2023)
Journal Article
He, Y., Dai, D., Xu, M., Zhang, W., Liu, X., Li, Y., Xing, Y., Zheng, W., & Gerada, D. (2023). Experimental Simulation and Electromechanical Characterization of Dynamic Air Gap Eccentricity Faults in PMSG. IEEJ Transactions on Electrical and Electronic Engineering, 18(12), 1903-1913. https://doi.org/10.1002/tee.23924

This paper presents a designed experimental simulation scheme for dynamic air gap eccentricity (DAGE) faults in permanent magnet synchronous generator (PMSG), along with the testing of their electromechanical characteristics. Unlike previous studies,... Read More about Experimental Simulation and Electromechanical Characterization of Dynamic Air Gap Eccentricity Faults in PMSG.

Analysis on Rotor Vibration Characteristics under Dynamic Rotor Interturn Short Circuit Fault in Synchronous Generators (2023)
Journal Article
He, Y., Jiang, M., Sun, K., Qiu, M., & Gerada, D. (2023). Analysis on Rotor Vibration Characteristics under Dynamic Rotor Interturn Short Circuit Fault in Synchronous Generators. Energies, 16(18), Article 6585. https://doi.org/10.3390/en16186585

A dynamic rotor interturn short circuit fault may occur during synchronous generator operation. However, there is no method to analyze the generator’s characteristics under the dynamic rotor interturn short circuit fault and identify the fault. In or... Read More about Analysis on Rotor Vibration Characteristics under Dynamic Rotor Interturn Short Circuit Fault in Synchronous Generators.

Research on the Effect of Heat Pipe Inclination Angle on Temperature Distribution in Electrical Machines (2023)
Journal Article
Zhao, H., Zhang, X., Li, J., Zhang, F., Zhang, Y., Yan, H., Zhu, X., Niu, Z., & Gerada, D. (2023). Research on the Effect of Heat Pipe Inclination Angle on Temperature Distribution in Electrical Machines. IEEE Transactions on Industry Applications, 59(6), 6745-6755. https://doi.org/10.1109/tia.2023.3310977

Due to high equivalent thermal conductivity with lightweight and small size, heat pipes (HPs) are being extensively applied in the motor cooling system to improve its thermal performance. However, when practically installed in electrical machines, th... Read More about Research on the Effect of Heat Pipe Inclination Angle on Temperature Distribution in Electrical Machines.

Parameter study for oil spray cooling on endwindings of electric machines via Eulerian–Lagrangian simulation (2023)
Journal Article
Zhao, A., Duwig, C., Liu, C., Gerada, D., & Leksell, M. (2023). Parameter study for oil spray cooling on endwindings of electric machines via Eulerian–Lagrangian simulation. Applied Thermal Engineering, 235, Article 121281. https://doi.org/10.1016/j.applthermaleng.2023.121281

The demand for larger power density and torque for the power traction motors used in electrified transportation puts forward a requirement for better thermal management methods. Spray cooling is a promising direct liquid cooling technique that has be... Read More about Parameter study for oil spray cooling on endwindings of electric machines via Eulerian–Lagrangian simulation.

Effectiveness of Thermal Interface Materials on Electrical Machines Thermal Performance with Heat Pipes (2023)
Journal Article
Zhao, H., Zhang, X., Li, J., Zhang, F., Zhao, W., Zhang, Y., Gerada, D., & Zhang, H. (2024). Effectiveness of Thermal Interface Materials on Electrical Machines Thermal Performance with Heat Pipes. IEEE Transactions on Transportation Electrification, 10(1), 1274-1285. https://doi.org/10.1109/TTE.2023.3274554

Thermal issue has always been a major concern in motor design. Heat pipes (HPs) have been applied in electrical machines with remarkable cooling effects reported. However, critical factors that affect HP thermal benefits have rarely been studied, suc... Read More about Effectiveness of Thermal Interface Materials on Electrical Machines Thermal Performance with Heat Pipes.

Analytical Calculation and Experimental Validation of Litz Wires Axial Thermal Conductivity (2023)
Journal Article
Li, Z., Xu, Z., Zhang, F., Gerada, D., Guo, R., Zhang, H., Corfield, M., Gerada, C., & Zhang, C. (2024). Analytical Calculation and Experimental Validation of Litz Wires Axial Thermal Conductivity. IEEE Transactions on Transportation Electrification, 10(1), 1167-1179. https://doi.org/10.1109/TTE.2023.3262766

Litz wires are widely used in electrical machines with reduced AC losses, compared to traditional random winding. The reduced AC losses can improve both electrical machines electromagnetic performance, such as efficiency and thermal performance. Ther... Read More about Analytical Calculation and Experimental Validation of Litz Wires Axial Thermal Conductivity.