All Outputs (23)

Comparative Study on Stranded and Hairpin Windings for 350kW EV Traction Motor (2023)
Conference Proceeding
Jiang, J., Zou, T., Rocca, S. L., Gerada, D., & Gerada, C. (2023). Comparative Study on Stranded and Hairpin Windings for 350kW EV Traction Motor. In 2023 26th International Conference on Electrical Machines and Systems (ICEMS). https://doi.org/10.1109/icems59686.2023.10345248

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)
Conference Proceeding
Zhu, G., Xu, Z., Zhang, F., Gerada, C., & Gerada, D. (2023). A Taguchi-LHS-RSM Double-Staged Approach for Design Optimization of Self-Ventilated Cooling Systems Utilized in PMSMs. In 26th International Conference on Electrical Machines and Systems (ICEMS). https://doi.org/10.1109/icems59686.2023.10344616

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.

Power Loss and Performance Analysis of a Permanent Magnet Synchronous Motor for Actuator Applications (2022)
Conference Proceeding
Tameemi, A., Degano, M., Di Nardo, M., Murataliyev, M., Gerada, D., Xu, Z., & Gerada, C. (2022). Power Loss and Performance Analysis of a Permanent Magnet Synchronous Motor for Actuator Applications. In 2022 International Conference on Electrical Machines (ICEM) (807-813). https://doi.org/10.1109/icem51905.2022.9910911

Permanent magnet synchronous motors are very suitable in applications demanding high power density with high performance requirements, such as in aerospace actuators. Achieving high performance targets while keeping the total weight of the electrical... Read More about Power Loss and Performance Analysis of a Permanent Magnet Synchronous Motor for Actuator Applications.

Fast Sizing Tool and Optimization Technique for Concentrated Wound Slotless Outer Rotor Motor for eVTOL Application (2022)
Conference Proceeding
Dave, N., Gerada, D., Vakil, G., Zhang, H., Shi, B., Zhang, F., …Gerada, C. (2022). Fast Sizing Tool and Optimization Technique for Concentrated Wound Slotless Outer Rotor Motor for eVTOL Application. In 2022 International Conference on Electrical Machines (ICEM) (2094-2099). https://doi.org/10.1109/ICEM51905.2022.9910584

This paper aims to present the feasibility and advantages of slotless motors for electric aircraft applications. Currently, eVTOL (electric vertical takeoff and landing) aircraft are equipped with a slotted motor with concentrated windings and an out... Read More about Fast Sizing Tool and Optimization Technique for Concentrated Wound Slotless Outer Rotor Motor for eVTOL Application.

Analytical Model for the Open Circuit Field due to Different Magnetization Patterns of the rotor in the Slotless Machines (2022)
Conference Proceeding
Dave, N., Gerada, D., Vakil, G., Zhang, H., Li, J., & Gerada, C. (2022). Analytical Model for the Open Circuit Field due to Different Magnetization Patterns of the rotor in the Slotless Machines. In 2022 International Conference on Electrical Machines (ICEM) (1204-1210). https://doi.org/10.1109/icem51905.2022.9910580

From the existing literature, the open circuit field due to different magnetisations of the rotor magnets is known. This includes field due to parallel, radial and Halbach magnetisation. This paper presents the generalised analytical model to represe... Read More about Analytical Model for the Open Circuit Field due to Different Magnetization Patterns of the rotor in the Slotless Machines.

Carbon Emission Analysis of Electrical Machines (2021)
Conference Proceeding
Zhang, X., Xu, Z., Gerada, C., & Gerada, D. (2021). Carbon Emission Analysis of Electrical Machines. In 2021 24th International Conference on Electrical Machines and Systems (ICEMS) (1678-1683). https://doi.org/10.23919/ICEMS52562.2021.9634279

The industry places increased importance on carbon reduction. Many are focused on lowering the fuel consumption of electrical machines, however, carbon emissions from the acquisition of raw materials and the energy consumption of manufacturing proces... Read More about Carbon Emission Analysis of Electrical Machines.

Improving the Saliency of a High Speed SynRel Rotor by using High Strength Martensitic Sleeve (2021)
Conference Proceeding
Ram Kumar, R. M., Vakil, G., La Rocca, A., Gerada, D., Gerada, C., & Fernandes, B. G. (2021). Improving the Saliency of a High Speed SynRel Rotor by using High Strength Martensitic Sleeve. In 2021 International Conference on Sustainable Energy and Future Electric Transportation (SEFET). https://doi.org/10.1109/sefet48154.2021.9375705

High strength magnetic steel laminations are the invariable choice to achieve the power density demands of high speed electric machines required in the automotive industry. However, the cost competitive automobile market, favours the use of conventio... Read More about Improving the Saliency of a High Speed SynRel Rotor by using High Strength Martensitic Sleeve.

AC loss Analysis in Winding of Electrical Machines with varying Strands-in-hand and Bundle Shapes (2020)
Conference Proceeding
Bardalai, A., Gerada, D., Xu, Z., & Gerada, C. (2020). AC loss Analysis in Winding of Electrical Machines with varying Strands-in-hand and Bundle Shapes. In 2020 23rd International Conference on Electrical Machines and Systems (ICEMS) (845-850). https://doi.org/10.23919/icems50442.2020.9290897

This paper presents an investigation into the sensitivity of high-frequency AC effects on the winding with varying number of parallel strands. Based on numerical analysis, a methodology to segregate the losses into components is presented. It is show... Read More about AC loss Analysis in Winding of Electrical Machines with varying Strands-in-hand and Bundle Shapes.

Comparison of slotted and slotless PM machines for high kW/kg aerospace applications (2020)
Conference Proceeding
Dave, N., Vakil, G., Xu, Z., Gerada, C., Zhang, H., & Gerada, D. (2020). Comparison of slotted and slotless PM machines for high kW/kg aerospace applications. . https://doi.org/10.23919/icems50442.2020.9291221

With the ambitious targeted emissions reduction, the aircraft industry is moving towards drastically different aircraft architectures including hybrid-electric. These in turn require electrical machines with a step change improvement in power-density... Read More about Comparison of slotted and slotless PM machines for high kW/kg aerospace applications.

Influence of Rotor Design on Electromagnetic Performance in Interior Permanent Magnet Machines (2020)
Conference Proceeding
Transi, T., Murataliyev, M., Degano, M., Preci, E., Gerada, D., & Gerada, C. (2020). Influence of Rotor Design on Electromagnetic Performance in Interior Permanent Magnet Machines. . https://doi.org/10.1109/iecon43393.2020.9255237

Nowadays, Interior Permanent Magnet Synchronous Machines (IPMSM) are widely adopted in various sectors such as automotive, railway or public transportation (e- buses, trams, etc.). Among the benefits that these machines present, they offer a number o... Read More about Influence of Rotor Design on Electromagnetic Performance in Interior Permanent Magnet Machines.

Rectangular and Random Conductors: AC Losses Evaluations and Manufacturing Considerations (2020)
Conference Proceeding
Preci, E., Valente, G., Bardalai, A., Transi, T., Zou, T., Gerada, D., …Gerada, C. (2020). Rectangular and Random Conductors: AC Losses Evaluations and Manufacturing Considerations. . https://doi.org/10.1109/iecon43393.2020.9254278

This paper presents a comparison between hairpin and random distributed winding in electrical machines for automotive applications. Indeed, the overall performance of an electrical drive system is seriously affected by its winding design. The conside... Read More about Rectangular and Random Conductors: AC Losses Evaluations and Manufacturing Considerations.

SISO Control Strategy of Resonant Dual Active Bridge with a Tuned CLC Network (2020)
Conference Proceeding
Wang, M., Yang, B., Xu, L., Li, J., Gerada, D., Gu, C., …Li, Y. (2020). SISO Control Strategy of Resonant Dual Active Bridge with a Tuned CLC Network. In 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe). https://doi.org/10.23919/epe20ecceeurope43536.2020.9215606

This paper proposed a linear state-space model for a resonant dual active bridge with a tuned capacitor-inductor-capacitor network which is applied to an energy storage system. The proposed model is used for predicting the behavior of the proposed sy... Read More about SISO Control Strategy of Resonant Dual Active Bridge with a Tuned CLC Network.

An Analytical Approach for the Design of Innovative Hairpin Winding Layouts (2020)
Conference Proceeding
Arzillo, A., Nuzzo, S., Braglia, P., Franceschini, G., Barater, D., Gerada, D., & Gerada, C. (2020). An Analytical Approach for the Design of Innovative Hairpin Winding Layouts. . https://doi.org/10.1109/icem49940.2020.9270927

This work deals with an analytical approach aimed at accurately predicting Joule losses in innovative hairpin winding layouts. While hairpin windings are seeing an everincreasing use in automotive and aerospace applications due to their inherently hi... Read More about An Analytical Approach for the Design of Innovative Hairpin Winding Layouts.

Challenges and Future opportunities of Hairpin Technologies (2020)
Conference Proceeding
Arzillo, A., Braglia, P., Nuzzo, S., Barater, D., Franceschini, G., Gerada, D., & Gerada, C. (2020). Challenges and Future opportunities of Hairpin Technologies. . https://doi.org/10.1109/ISIE45063.2020.9152417

Hairpin windings are seeing an ever-increasing application and development in electrical machines designed for high power and torque densities. In fact, due to their inherently high fill factor, they are very attractive in applications, such as trans... Read More about Challenges and Future opportunities of Hairpin Technologies.

Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application (2019)
Conference Proceeding
Al-Ani, M., Walker, A., Vakil, G., Ramanathan, R., Zou, T., La Rocca, S., …McQueen, A. (2019). Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (4353-4359). https://doi.org/10.1109/IECON.2019.8926697

Recently, the synchronous reluctance machine limits have been pushed toward meeting the requirements of traction applications. A skilled electromagnetic architecture of a synchronous reluctance machine with the help of permanent magnets can push the... Read More about Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application.

Thermal Barrier for High-Voltage Permanent Magnet Synchronous Motor with Air-cooling Hybrid Ventilation Systems (2019)
Conference Proceeding
Zhang, X., Zhang, H., Li, W., Gerada, C., Gerada, D., & Li, J. (2019). Thermal Barrier for High-Voltage Permanent Magnet Synchronous Motor with Air-cooling Hybrid Ventilation Systems. In Proceedings of the 22nd International Conference on Electrical Machines and Systems (ICEMS) (1-4). https://doi.org/10.1109/icems.2019.8922364

This paper addresses the thermal network improvement in a 315 kW high-voltage solid rotor permanent magnet synchronous motor, with a hybrid air-cooling system, by the proposed thermal barrier. The multi-coupled fields, as electromagnetic fields, flui... Read More about Thermal Barrier for High-Voltage Permanent Magnet Synchronous Motor with Air-cooling Hybrid Ventilation Systems.

Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft (2019)
Conference Proceeding
Golovanov, D., Xu, Z., Gerada, D., Page, A., Gerada, C., & Sawata, T. (2019). Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft. In AIAA Propulsion and Energy 2019 Forum. https://doi.org/10.2514/6.2019-4482

A prototype motor rated for 500 kW 3,000 rpm has been developed for aircraft electric propulsion. The design of the motor was optimized using a coupled parameter problem of electromagnetic, mechanical and thermal performances. A high power density of... Read More about Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft.

Dual-Rotor Permanent Magnet Motor for Electric Superbike (2019)
Conference Proceeding
Golovanov, D., Galassini, A., Flanagan, L., Gerada, D., Xu, Z., & Gerada, C. (2019). Dual-Rotor Permanent Magnet Motor for Electric Superbike. In 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (951-956). https://doi.org/10.1109/IEMDC.2019.8785287

The demand on high-performance electrical machines has significantly increased for aerospace and transportation industries in recent years. A racing electric motorbike is a suitable platform to validate and prove new concepts and machine topologies b... Read More about Dual-Rotor Permanent Magnet Motor for Electric Superbike.

Optimized Sizing of IPM Machines for Automotive Traction Application (2019)
Conference Proceeding
Valente, G., Gerada, D., Degano, M., Gerada, C., Foulsham, J., & Beeby, D. (2019). Optimized Sizing of IPM Machines for Automotive Traction Application. In 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (970-975). https://doi.org/10.1109/IEMDC.2019.8785245

This paper presents the implementation of an electrical machine design tool including its overall architecture. The tool is flexible and can be employed for the sizing of any permanent magnet synchronous machine. The case study considered in this wor... Read More about Optimized Sizing of IPM Machines for Automotive Traction Application.

Eddy Current Loss Control in High Speed PM Starter-Generator (2019)
Conference Proceeding
Zhang, X., Zhang, H., Gerada, C., Gerada, D., Li, J., Xu, Z., & Liu, C. (2019). Eddy Current Loss Control in High Speed PM Starter-Generator. In Proceedings: 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (46-50). https://doi.org/10.1109/WEMDCD.2019.8887771

This paper highlights the advancement in high speed generation applications along with describing the state of the art in the machine design technologies enabling such an application uptake. Via the investigating on a 250kW high speed PM starter-gene... Read More about Eddy Current Loss Control in High Speed PM Starter-Generator.