All Outputs (135)

Dual-Pulse Mode Control of a High-Speed Doubly Salient Electromagnetic Machine for Loss Reduction and Speed Range Extension (2019)
Journal Article
Yu, L., Zhang, Z., Bian, Z., Gerada, D., & Gerada, C. (2019). Dual-Pulse Mode Control of a High-Speed Doubly Salient Electromagnetic Machine for Loss Reduction and Speed Range Extension. IEEE Transactions on Industrial Electronics, 67(6), 1-10. https://doi.org/10.1109/tie.2019.2931253

In this paper, a dual-pulse mode control of a high-speed doubly salient electromagnetic machine (DSEM) for efficiency improvement over a wide speed range is investigated and implemented. The dual-pulse mode control method and operation principle are... Read More about Dual-Pulse Mode Control of a High-Speed Doubly Salient Electromagnetic Machine for Loss Reduction and Speed Range Extension.

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.

Challenges of the optimization of a high-speed induction machine for naval applications (2019)
Journal Article
Buticchi, G., Gerada, D., Alberti, L., Galea, M., Wheeler, P., Bozhko, S., Peresada, S., Zhang, H., Zhang, C., & Gerada, C. (2019). Challenges of the optimization of a high-speed induction machine for naval applications. Energies, 12(12), Article 2431. https://doi.org/10.3390/en12122431

In several industrial sectors, induction machines are being replaced with permanent magnet based alternatives, owing to the potential for higher power density and efficiency. However, high-speed applications feature a wide flux-weakening region, wher... Read More about Challenges of the optimization of a high-speed induction machine for naval 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.

Optimized Sizing of IPM Machines for Automotive Traction Application (2019)
Presentation / Conference Contribution
Valente, G., Gerada, D., Degano, M., Gerada, C., Foulsham, J., & Beeby, D. (2019, May). Optimized Sizing of IPM Machines for Automotive Traction Application. Presented at 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, CA, USA

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)
Presentation / Conference Contribution
Zhang, X., Zhang, H., Gerada, C., Gerada, D., Li, J., Xu, Z., & Liu, C. (2019, April). Eddy Current Loss Control in High Speed PM Starter-Generator. Presented at 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Athens, Greece

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.

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.

Back-Iron Extension Thermal Benefits for Electrical Machines With Concentrated Windings (2019)
Journal Article
Zhang, F., Gerada, D., Xu, Z., Zhang, X., Tighe, C., Zhang, H., & Gerada, C. (2020). Back-Iron Extension Thermal Benefits for Electrical Machines With Concentrated Windings. IEEE Transactions on Industrial Electronics, 67(3), 1728-1738. https://doi.org/10.1109/tie.2019.2903758

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.

A Holistic Electrical Machine Design Tool for More-Electric and Hybrid-Electric Aircraft (2018)
Presentation / Conference Contribution
Golovanov, D., Xu, Z., Gerada, D., Gerada, C., & Papini, L. (2018, November). A Holistic Electrical Machine Design Tool for More-Electric and Hybrid-Electric Aircraft. Presented at 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC), Nottingham, UK

The power density of electrical machines required for more-electric and hybrid-electric aircraft has become a critical aspect and target of optimization. This paper looks at the development aspects of a multi-domain tool to aid for system-level optim... Read More about A Holistic Electrical Machine Design Tool for More-Electric and Hybrid-Electric Aircraft.

Performance Comparison of Doubly Salient Reluctance Generators for High-Voltage DC Power System of More Electric Aircraft (2018)
Presentation / Conference Contribution
Li, Y., Zhang, Z., Gerada, D., & Gerada, C. (2018, November). Performance Comparison of Doubly Salient Reluctance Generators for High-Voltage DC Power System of More Electric Aircraft. Presented at 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC), Nottingham, UK

The generation performance of the switched reluctance machine (SRM)-based starter/generator (S/G) and the doubly salient electromagnetic machine (DSEM)-based S/G is analyzed and compared in this paper. The topologies, operation principles of the doub... Read More about Performance Comparison of Doubly Salient Reluctance Generators for High-Voltage DC Power System of More Electric Aircraft.

Design and Mathematical Modeling of Gearless SMC Flux Reversal Motor (2018)
Presentation / Conference Contribution
Prakht, V., Golovanov, D., Dmitrievskii, V., Gerada, D., & Kazakbaev, V. (2018, November). Design and Mathematical Modeling of Gearless SMC Flux Reversal Motor. Presented at 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC), Nottingham, UK

© 2018 IEEE. This paper considers the design of a three-phase gearless flux reversal machine (FRM) with permanent magnets (PM) mounted on the stator. Its stator magnetic core is made of a solid soft magnetic composite material (SMC) with a slot for l... Read More about Design and Mathematical Modeling of Gearless SMC Flux Reversal Motor.

The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft (2018)
Presentation / Conference Contribution
Golovanov, D., Xu, Z., Gerada, D., Degano, M., Vakil, G., & Gerada, C. (2018, October). The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft. Presented at 2018 21st International Conference on Electrical Machines and Systems (ICEMS), Jeju, South Korea

Maximizing the power density as well as efficiency are two of the main critical aspects for engineers who are designing electrical machines for aerospace applications. Iron losses have a significant impact on the total machine efficiency, thermal sta... Read More about The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft.

Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines (2018)
Journal Article
Sala, G., Valente, G., Formentini, A., Papini, L., Gerada, D., Zanchetta, P., Tani, A., & Gerada, C. (2018). Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines. IEEE Transactions on Industrial Electronics, 65(9), 6912-6922. https://doi.org/10.1109/TIE.2018.2795590

Two different approaches to characterize the torque and radial force production in a Bearingless Multi-Sector Permanent Magnet (BMSPM) machine are presented in this work. The first method consists of modelling the motor in terms of torque and force p... Read More about Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines.

A semi-flooded cooling for a high speed machine: Concept, design and practice of an oil sleeve (2017)
Presentation / Conference Contribution
Xu, Z., La Rocca, A., Arumugam, P., Pickering, S. J., Gerada, C., Bozhko, S., Gerada, D., & Zhang, H. (2017, October). A semi-flooded cooling for a high speed machine: Concept, design and practice of an oil sleeve. Presented at IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, China

This paper proposes a semi-flooded cooling concept for a high speed machine design. The electrical machine considered is for an aircraft starter-generator system where power density and efficiency are crucial. In order to achieve the high power densi... Read More about A semi-flooded cooling for a high speed machine: Concept, design and practice of an oil sleeve.

Multi-domain optimization of high power-density PM electrical machines for system architecture selection (2017)
Journal Article
Golovanov, D., Papini, L., Gerada, D., Xu, Z., & Gerada, C. (2018). Multi-domain optimization of high power-density PM electrical machines for system architecture selection. IEEE Transactions on Industrial Electronics, 65(7), 5302-5312. https://doi.org/10.1109/TIE.2017.2772188

The power density of electrical machines for transport applications has become a critical aspect and target of optimization. This paper looks at the development of an intelligent, rapid, flexible, and multidomain tool to aid for system-level optimiza... Read More about Multi-domain optimization of high power-density PM electrical machines for system architecture selection.

Thermal investigation on HSPM with new alloy sleeve (2017)
Presentation / Conference Contribution
Zhang, X., Li, W., Zhang, H., Gerada, C., Gerada, D., & Li, J. (2017, August). Thermal investigation on HSPM with new alloy sleeve. Presented at 2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017, Sydney, NSW, Australia

This paper presents a developed copper-iron alloy which made as the rotor sleeve in a high speed permanent magnetic machine (HSPMG), whist investigating its benefits in improve machine thermal performance. The features of the new alloy is experimenta... Read More about Thermal investigation on HSPM with new alloy sleeve.

Holistic electrical machine optimization for system integration (2017)
Presentation / Conference Contribution
Gerada, D., Golovanov, D., Xu, Z., Papini, L., Degano, M., Zhang, H., & Gerada, C. (2017, June). Holistic electrical machine optimization for system integration. Presented at 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC - ECCE Asia) 2017, Kaohsiung, Taiwan

The power density of electrical machines required for transport applications has become a critical aspect and target of optimization. This paper looks at the development aspects of a multi-domain tool to aid for system-level optimization of electrica... Read More about Holistic electrical machine optimization for system integration.