Professor CHRISTOPHER GERADA's Outputs (188)

A two degrees of freedom system for wheel traction applications (2017)
Journal Article
Roggia, S., Cupertino, F., Gerada, C., & Galea, M. (2018). A two degrees of freedom system for wheel traction applications. IEEE Transactions on Industrial Electronics, 65(6), 4483-4491. https://doi.org/10.1109/TIE.2017.2767554

In this paper, the use of conical induction machines is proposed for an in-wheel traction application. Such machines offer a rotational movement combined with a translational motion of the rotor. The horizontal movement is essential when active engag... Read More about A two degrees of freedom system for wheel traction applications.

Axial eccentric SynRel and SPM motors analytical models validation using 3D finite element (2017)
Presentation / Conference Contribution
Mahmoud, H., Al-Timimy, A., Degano, M., Di Nardo, M., Bianchi, N., & Gerada, C. (2017, August). Axial eccentric SynRel and SPM motors analytical models validation using 3D finite element. Presented at SDEMPED 2017 - IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, Tinos, Greece

This paper deals with the uniform and non-uniform axial eccentricity analyses of the surface mounted permanent magnet and synchronous reluctance machines. The analyses are carried out using an analytical model for each considered machine. Being the a... Read More about Axial eccentric SynRel and SPM motors analytical models validation using 3D finite element.

Comparative study and optimal design of alternative PM configuration transverse flux linear machine (2017)
Presentation / Conference Contribution
Zhu, S., Cox, T., Gerada, C., & Xu, Z. Comparative study and optimal design of alternative PM configuration transverse flux linear machine. Presented at 20th International Conference on Electrical Machines and Systems (ICEMS)

This paper presents the comparative study and optimal design of a transverse flux linear machine with different PM configurations, viz. surface-mounted and consequent-pole, in which the consequent-pole version is firstly proposed. Firstly, the effect... Read More about Comparative study and optimal design of alternative PM configuration transverse flux linear machine.

Distributed speed control for multi-three phase electrical motors with improved power sharing capability (2017)
Presentation / Conference Contribution
Galassini, A., Costabeber, A., Gerada, C., & Tessarolo, A. Distributed speed control for multi-three phase electrical motors with improved power sharing capability. Presented at 2017 IEEE Energy Conversion Congress and Exposition (ECCE)

This paper proposes a distributed speed control with improved power sharing capability for multi-three phase synchronous machines. This control technique allows the speed to be precisely regulated during power sharing transients among different drive... Read More about Distributed speed control for multi-three phase electrical motors with improved power sharing capability.

Comparative study of novel tubular flux-reversal transverse flux permanent magnet linear machine (2017)
Presentation / Conference Contribution
Zhu, S., Cox, T., & Gerada, C. Comparative study of novel tubular flux-reversal transverse flux permanent magnet linear machine. Presented at 2017 IEEE Energy Conversion Congress and Exposition (ECCE)

This paper presents a novel tubular flux-reversal transverse flux permanent magnet linear machine (FR-TFPMLM), in which both magnet and armature winding are located at the short primary side whereas the secondary side is composed of only magnetic ste... Read More about Comparative study of novel tubular flux-reversal transverse flux permanent magnet linear machine.

Design optimization of a high-speed synchronous reluctance machine (2017)
Journal Article
Di Nardo, M., Lo Calzo, G., Galea, M., & Gerada, C. (2018). Design optimization of a high-speed synchronous reluctance machine. IEEE Transactions on Industry Applications, 54(1), 233-243. https://doi.org/10.1109/TIA.2017.2758759

Synchronous reluctance machines, including the per¬manent magnet assisted variants are competitive motor topologies if the application requires high efficiency and a cost effective solution with a high flux weakening capability. However, increas¬ing... Read More about Design optimization of a high-speed synchronous reluctance machine.

Analysis, modelling and design considerations for the excitation systems of synchronous generators (2017)
Journal Article
Nuzzo, S., Galea, M., Gerada, C., & Brown, N. (2018). Analysis, modelling and design considerations for the excitation systems of synchronous generators. IEEE Transactions on Industrial Electronics, 65(4), 2996-3007. https://doi.org/10.1109/TIE.2017.2756592

The traditional generating set is usually comprised of a classical, wound-field, salient-pole or cylindrical rotor synchronous generator, excited by a separate smaller machine, via a rotating, uncontrolled diode rectifier. The effects of the commutat... Read More about Analysis, modelling and design considerations for the excitation systems of synchronous generators.

The Third Workshop on Electrical Machines Design, Control, and Diagnosis: continuing the success, ensuring the quality (2017)
Journal Article
Galea, M., & Gerada, C. (2017). The Third Workshop on Electrical Machines Design, Control, and Diagnosis: continuing the success, ensuring the quality. IEEE Industrial Electronics Magazine, 11(3), 54-55. https://doi.org/10.1109/MIE.2017.2726241

Use of optical fibres for multi-parameter monitoringin electrical AC machines (2017)
Presentation / Conference Contribution
Hind, D. M., Gerada, C., Galea, M., Borg Bartalo, J., Fabian, M., Sun, T., & Grattan, K. T. (2017, August). Use of optical fibres for multi-parameter monitoringin electrical AC machines. Presented at IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED 2017)

This paper describes a new approach to multi-parameter monitoring for electrical AC machines. It is demonstrated that speed, torque and temperature can be measured using optical fibres incorporating sensors in the form of fibre Bragg gratings (FBGs)... Read More about Use of optical fibres for multi-parameter monitoringin electrical AC machines.

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.

A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits (2017)
Journal Article
Mohammed, A., Cox, T., Galea, M., & Gerada, C. (in press). A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits. IEEE Transactions on Industrial Electronics, https://doi.org/10.1109/TIE.2016.2587859

The mechanical and thermal properties of common, solid (non-laminated) ferromagnetic materials are widely available, but the electro-magnetic characteristics of such solid materials are often undefined. Existing characterization procedures such as th... Read More about A new method for determining the magnetic properties of solid materials employed in unconventional magnetic circuits.

Speed control for multi-three phase synchronous electrical motors in fault condition (2017)
Presentation / Conference Contribution
Galassini, A., Costabeber, A., & Gerada, C. Speed control for multi-three phase synchronous electrical motors in fault condition. Presented at IEEE EUROCON 2017 -17th International Conference on Smart Technologies

The growth of electrification transportation systems is an opportunity for delving into new feasible solutions for more reliable and fault tolerant arrangements. So far, many investigations distant from the market have been carried out. Most of the w... Read More about Speed control for multi-three phase synchronous electrical motors in fault condition.

Axial position estimation of conical shaped motors for aerospace traction applications (2017)
Journal Article
Roggia, S., Cupertino, F., Gerada, C., & Galea, M. (2017). Axial position estimation of conical shaped motors for aerospace traction applications. IEEE Transactions on Industry Applications, 53(6), 5405-5414. https://doi.org/10.1109/TIA.2017.2717911

This paper is concerned with the use of conical induction machines. Such machines are extremely valuable when apart from the rotational torque output, an axial translation of the rotor is also required. The inherent attraction between the stator and... Read More about Axial position estimation of conical shaped motors for aerospace traction applications.

Enhancing electromagnetic launch capability: design of a small launch system for large UAVs (2017)
Presentation / Conference Contribution
Cox, T., Yang, T., & Gerada, C. Enhancing electromagnetic launch capability: design of a small launch system for large UAVs. Presented at Engine as a Weapon International Symposium, EAAW 2017

Unmanned Aerial Vehicles (UAVs) play a critical and increasing role in modern combat, giving significantly enhanced surveillance, communication and strike capabilities. There are currently a large range of UAV’s available, but in general the more cap... Read More about Enhancing electromagnetic launch capability: design of a small launch system for large UAVs.

Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications (2017)
Presentation / Conference Contribution
Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2017, April). Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications. Presented at 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Nottingham, United Kingdom

This paper investigates the capability of both permanent magnet synchronous machine (PMSM) and permanent magnet flux switching (PMFS) machine to provide high torque to inertia ratio for applications with demanding response in terms of acceleration an... Read More about Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications.

Analysis of salient-pole synchronous generators operating in single-phase condition (2017)
Presentation / Conference Contribution
Spagnolo, C., Nuzzo, S., Serra, G., Gerada, C., & Galea, M. (2017, April). Analysis of salient-pole synchronous generators operating in single-phase condition. Presented at 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Nottingham, United Kingdom

The power generation industry has recently started to invest interest and focus on the single-phase operation of traditional three-phase, wound-field, synchronous generators. This is partially due to a combination of customer requirements and the nee... Read More about Analysis of salient-pole synchronous generators operating in single-phase condition.

uCube: Control platform for power electronics (2017)
Presentation / Conference Contribution
Galassini, A., Lo Calzo, G., Formentini, A., Gerada, C., Zanchetta, P., & Costabeber, A. (2017, April). uCube: Control platform for power electronics. Presented at IEEE WEMDCD'2017: IEEE Workshop on Electrical Machines Design, Control and Diagnosis, Nottingham, UK

This paper presents a versatile tool for development, control and testing of power electronics converters. In the last decade, many different expensive off-the-shelf tools for rapid prototyping and testing have been developed and commercialised by fe... Read More about uCube: Control platform for power electronics.

Design optimization of integrated rotor-less inductors for high-speed AC drive applications (2017)
Presentation / Conference Contribution
Raza Khowja, M., Gerada, C., Vakil, G., Patel, C., & Wheeler, P. (2017, April). Design optimization of integrated rotor-less inductors for high-speed AC drive applications. Presented at IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD 2017), Nottingham, UK

Discrete sub-system due to passive elements in motor drive require functional and structural integration to make efficient and power dense overall system. Such power dense system is the prerequisite in aerospace and marine applications. This paper pr... Read More about Design optimization of integrated rotor-less inductors for high-speed AC drive applications.

Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators (2017)
Presentation / Conference Contribution
Wang, Y., Vakil, G., Nuzzo, S., Degano, M., Galea, M., Gerada, C., Zhang, H., & Brown, N. (2017, April). Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators. Presented at IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) 2017, Nottingham, UK

Objective of this paper is to provide design recommendations to improve the performance and power density of a 400kVA salient-pole synchronous generator, without exceeding the limitations due to critical parameters such as total harmonic distortion o... Read More about Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators.