All Outputs (39)

Carbon Emission Analysis of Electrical Machines (2021)
Presentation / Conference Contribution
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.

A critical review on thermal management technologies for motors in electric cars (2021)
Journal Article
Wang, X., Li, B., Gerada, D., Huang, K., Stone, I., Worrall, S., & Yan, Y. (2022). A critical review on thermal management technologies for motors in electric cars. Applied Thermal Engineering, 201(Part A), Article 117758. https://doi.org/10.1016/j.applthermaleng.2021.117758

The development of electric cars has well been regarded as a major solution for tackling the challenges of carbon-neutrality faced by the modern communities. Electric motor is certainly the core and most important components of an electric car, and t... Read More about A critical review on thermal management technologies for motors in electric cars.

Improved Thermal Modeling and Experimental Validation of Oil-Flooded High-Performance Machines with Slot-Channel Cooling (2021)
Journal Article
Zhang, F., Gerada, D., Xu, Z., Zhang, X., Zhang, H., Gerada, C., …Degano, M. (2022). Improved Thermal Modeling and Experimental Validation of Oil-Flooded High-Performance Machines with Slot-Channel Cooling. IEEE Transactions on Transportation Electrification, 8(1), 312-324. https://doi.org/10.1109/TTE.2021.3106819

Thermal management is often considered a bottleneck in the pursuit of the next-generation electrical machines for electrified transportation with a step change in power density. Slot-channel cooling is considered to be an effective cooling technique,... Read More about Improved Thermal Modeling and Experimental Validation of Oil-Flooded High-Performance Machines with Slot-Channel Cooling.

Electrical Machine Slot Thermal Condition Effects on Back Iron Extension Thermal Benefits (2021)
Journal Article
Zhang, F., Gerada, D., Xu, Z., Tighe, C., Zhang, H., Yan, L., & Gerada, C. (2021). Electrical Machine Slot Thermal Condition Effects on Back Iron Extension Thermal Benefits. IEEE Transactions on Transportation Electrification, 7(4), 2927-2938. https://doi.org/10.1109/tte.2021.3085822

The slot thermal condition is critical for thermal management of high-performance electrical machines, due to the high heat losses and poor heat transfer ability within the slot. With a part of the back iron projected radially downward into the slot,... Read More about Electrical Machine Slot Thermal Condition Effects on Back Iron Extension Thermal Benefits.

Influence of Rotor Design on Electromagnetic Performance in Interior Permanent Magnet Machines (2020)
Presentation / Conference Contribution
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.

SISO Control Strategy of Resonant Dual Active Bridge with a Tuned CLC Network (2020)
Presentation / Conference Contribution
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.

Improved V‐shaped interior permanent magnet rotor topology with inward‐extended bridges for reduced torque ripple (2020)
Journal Article
Gao, P., Sun, X., Gerada, D., Gerada, C., & Wang, X. (2020). Improved V‐shaped interior permanent magnet rotor topology with inward‐extended bridges for reduced torque ripple. IET Electric Power Applications, 14(12), 2404-2411. https://doi.org/10.1049/iet-epa.2019.0850

Interior permanent magnet synchronous machines (IPMSMs) with V-shaped permanent magnet (PM) rotors are widely used as traction motors in electric vehicles because of their high torque density and high efficiency. However, the V-shape IPMSMs have the... Read More about Improved V‐shaped interior permanent magnet rotor topology with inward‐extended bridges for reduced torque ripple.

An Analytical Approach for the Design of Innovative Hairpin Winding Layouts (2020)
Presentation / Conference Contribution
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)
Presentation / Conference Contribution
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.

Analytical Model of Modular Spoke-Type Permanent Magnet Machines for In-Wheel Traction Applications (2020)
Journal Article
Zhang, H., Hua, W., Gerada, D., Xu, Z., & Gerada, C. (2020). Analytical Model of Modular Spoke-Type Permanent Magnet Machines for In-Wheel Traction Applications. IEEE Transactions on Energy Conversion, 35(3), 1289-1300. https://doi.org/10.1109/tec.2020.2979886

This paper proposes an analytical model of modular spoke-type permanent magnet (MSTPM) machines based on air-gap field modulation (AFM) theory. Firstly, a fundamental AFM model of open-circuit MSTPM machines is introduced. The open-circuit air-gap fi... Read More about Analytical Model of Modular Spoke-Type Permanent Magnet Machines for In-Wheel Traction Applications.

Effect of 3D Unidirectional and Hybrid SAGE on Electromagnetic Torque Fluctuation Characteristics in Synchronous Generator (2019)
Journal Article
He, Y.-L., Xu, M.-X., Xiong, J., Sun, Y.-X., Wang, X.-L., Gerada, D., & Vakil, G. (2019). Effect of 3D Unidirectional and Hybrid SAGE on Electromagnetic Torque Fluctuation Characteristics in Synchronous Generator. IEEE Access, 7, 100813-100823. https://doi.org/10.1109/access.2019.2929868

This paper presents a comprehensive study on the variation laws of electromagnetic torque (EMT) under static air-gap eccentricity (SAGE) conditions in synchronous generators. Different from other studies, this paper focuses on not only the impact of... Read More about Effect of 3D Unidirectional and Hybrid SAGE on Electromagnetic Torque Fluctuation Characteristics in Synchronous Generator.

Comparative study on two modular spoke-type PM machines for in-wheel traction applications (2019)
Journal Article
Zhang, H., Hua, W., Gerada, D., Gerada, C., Li, Y., & Zhang, G. (2019). Comparative study on two modular spoke-type PM machines for in-wheel traction applications. IEEE Transactions on Energy Conversion, 34(4), 2137-2147. https://doi.org/10.1109/tec.2019.2927872

This paper focuses on the comparative analysis of modular spoke-type permanent magnet machines with two magnetization modes, which are referred to as M-I and M-II types. The analytical models of the proposed machines are built based on the simple mag... Read More about Comparative study on two modular spoke-type PM machines for in-wheel traction applications.

Dual-Rotor Permanent Magnet Motor for Electric Superbike (2019)
Presentation / Conference Contribution
Golovanov, D., Galassini, A., Flanagan, L., Gerada, D., Xu, Z., & Gerada, C. (2019, May). Dual-Rotor Permanent Magnet Motor for Electric Superbike. Presented at 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, CA, USA

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.

Flux-Density Harmonics Analysis of Switched-Flux Permanent Magnet Machines (2019)
Journal Article
Zeng, Z., Shen, Y., Lu, Q., Gerada, D., Wu, B., Huang, X., & Gerada, C. (2019). Flux-Density Harmonics Analysis of Switched-Flux Permanent Magnet Machines. IEEE Transactions on Magnetics, 55(6), 1-7. https://doi.org/10.1109/tmag.2019.2908250

By developing a simple permeance-magnetomotive force (MMF) model of switched-flux permanent magnet (SFPM) machines, the air-gap flux density produced by both PMs and armature current can be derived, in which harmonics with the same order and rotation... Read More about Flux-Density Harmonics Analysis of Switched-Flux Permanent Magnet Machines.

Effective Thermal Conductivity Calculation and Measurement of Litz Wire based on the Porous Metal Materials Structure (2019)
Journal Article
Liu, X., Gerada, D., Xu, Z., Corfield, M., Gerada, C., & Yu, H. (2020). Effective Thermal Conductivity Calculation and Measurement of Litz Wire based on the Porous Metal Materials Structure. IEEE Transactions on Industrial Electronics, 67(4), 2667-2677. https://doi.org/10.1109/tie.2019.2910031

Litz wires are employed in high-frequency electrical machines due to their advantages of reducing the ac losses, including minimizing the skin effect and the proximity effect. In order to improve the reliability of such machines, and enable accurate... Read More about Effective Thermal Conductivity Calculation and Measurement of Litz Wire based on the Porous Metal Materials Structure.

The Influence of Winding Location in Flux-Switching Permanent-Magnet Machines (2019)
Journal Article
Zhang, H., Hua, W., Hu, M., Gerada, D., & Gerada, C. (2019). The Influence of Winding Location in Flux-Switching Permanent-Magnet Machines. IEEE Transactions on Magnetics, 55(7), Article 8104205. https://doi.org/10.1109/tmag.2018.2886686

The main purpose of this paper is to investigate the influence of winding location on back electromotive force (EMF) and armature inductance in flux-switching permanent-magnet (FSPM) machines. To obtain an analytical solution, a double-stator-pitch m... Read More about The Influence of Winding Location in Flux-Switching Permanent-Magnet Machines.

End barrier shape optimizations and sensitivity analysis of synchrnous reluctance machines (2015)
Presentation / Conference Contribution
Galea, M., Di Nardo, M., Gerada, C., Palmieri, M., Gerada, D., Cupertino, F., Degano, M., & Bianchi, N. (2015, November). End barrier shape optimizations and sensitivity analysis of synchrnous reluctance machines. Presented at End barrier shape optimizations and sensitivity analysis of synchrnous reluctance machines, Yokohama, Japan

This paper presents an extensive study on the electromagnetic and structural influences of the end barrier shape of a Synchronous Reluctance Machine (SynRel). One of the most challenging tasks in designing these machines is to achieve a smooth torque... Read More about End barrier shape optimizations and sensitivity analysis of synchrnous reluctance machines.

Design considerations for high performance traction machines: Aiming for the FreedomCar 2020 targets (2015)
Presentation / Conference Contribution
Walker, A., Galea, M., Gerada, C., Mebarki, A., & Gerada, D. (2015). Design considerations for high performance traction machines: Aiming for the FreedomCar 2020 targets. . https://doi.org/10.1109/ESARS.2015.7101451

This paper presents considerations for the design of high performance, interior permanent magnet machines for traction applications. These machines will be designed to reach the FreedomCar 2020 targets set by the US Department of Energy for the year... Read More about Design considerations for high performance traction machines: Aiming for the FreedomCar 2020 targets.

A topology selection consideration of electrical machines for traction applications: towards the FreedomCar 2020 targets (2015)
Presentation / Conference Contribution
Walker, A., Galea, M., Gerada, C., Mebarki, A., & Gerada, D. (2015). A topology selection consideration of electrical machines for traction applications: towards the FreedomCar 2020 targets. . https://doi.org/10.1109/EVER.2015.7112923

This paper details a qualitative comparison between different types of electrical machine for hybrid electric vehicle traction applications. Targets set by the US Department of Energy for the year 2020 are used as goals. Several types of machine for... Read More about A topology selection consideration of electrical machines for traction applications: towards the FreedomCar 2020 targets.