Professor CHRISTOPHER GERADA's Outputs (29)

Axial position estimation of conical shaped motor for green taxiing application (2016)
Presentation / Conference Contribution
Roggia, S., Galea, M., Gerada, C., & Cupertino, F. (2016, September). Axial position estimation of conical shaped motor for green taxiing application. Presented at IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, USA

This paper considers the possibility of adopting a conical shaped motor for Green Taxiing (GT) application. This topology of motor has been selected in order to obviate the presence of external declutching system (i.e. mechanical or electromagnetic c... Read More about Axial position estimation of conical shaped motor for green taxiing application.

Active Magnetic Bearing system design featuring a predictive current control (2016)
Presentation / Conference Contribution
Papini, L., Tarisciotti, L., Costabeber, A., Gerada, C., & Wheeler, P. (2016, October). Active Magnetic Bearing system design featuring a predictive current control. Presented at 42nd Annual Conference of IEEE Industrial Electronics Society, Florence, Italy

Active Magnetic Bearing (AMB) technology is becoming attractive for several reasons such as high speed operations, high reliability and vibrations exemption. Moreover, AMB can behave as active vibration dampers and provide a real-time control of the... Read More about Active Magnetic Bearing system design featuring a predictive current control.

History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels (2016)
Presentation / Conference Contribution
Yang, T., Cox, T., Degano, M., Bozhko, S., & Gerada, C. History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels. Presented at International Naval & Maritime Exhibition and Congress for Latin America, ExpoNAVAL 2016

Due to developments in power electronics, electric machines, energy storage and control, electric propulsion and integrated electrical power systems have become major trends for commercial and naval vessels. This is mainly due to the fact that the us... Read More about History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels.

Multistress characterization of fault mechanisms in aerospace electric actuators (2016)
Journal Article
Barater, D., Immovilli, F., Soldati, A., Buticchi, G., Franceschini, G., Gerada, C., & Galea, M. (in press). Multistress characterization of fault mechanisms in aerospace electric actuators. IEEE Transactions on Industry Applications, 53(2), https://doi.org/10.1109/TIA.2016.2633948

The concept behind the More Electric Aircraft (MEA) is the progressive electrification of on-board actuators and services. It is a way to reduce or eliminate the dependence on hydraulic, mechanical and the bleed air/pneumatic systems and pursue effic... Read More about Multistress characterization of fault mechanisms in aerospace electric actuators.

Lifetime consumption and degradation analysis of the winding insulation of electrical machines (2016)
Presentation / Conference Contribution
Sciascera, C., Galea, M., Giangrande, P., & Gerada, C. Lifetime consumption and degradation analysis of the winding insulation of electrical machines. Presented at 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

In this paper, a novel multi-stress model which estimates the lifetime of the winding insulation relative to its duty cycle is proposed and investigated. With an adequate implementation of this model, then an electrical machine can be designed not on... Read More about Lifetime consumption and degradation analysis of the winding insulation of electrical machines.

Development and design of a high performance traction machine for the FreedomCar 2020 traction machine targets (2016)
Presentation / Conference Contribution
Walker, A., Galea, M., Gerada, D., Gerada, C., Mebraki, A., & Brown, N. (2016, September). Development and design of a high performance traction machine for the FreedomCar 2020 traction machine targets. Presented at International Conference on Electrical Machines (ICEM'2016), Lausanne, Switzerland

This paper details the design process of a high performance electrical machine with the objective of achieving US Department of Energy FreedomCar 2020 targets, namely meeting the high speed efficiency requirement without sacrificing performance elsew... Read More about Development and design of a high performance traction machine for the FreedomCar 2020 traction machine targets.

Assessment of cooling methods for increased power density in electrical machines (2016)
Presentation / Conference Contribution
Tighe, C., Gerada, C., & Pickering, S. Assessment of cooling methods for increased power density in electrical machines. Presented at XXIIth International Conference on Electrical Machines (ICEM'2016)

A comprehensive thermal analysis of three different electrical machines is presented, with a view of identifying design aspects that can be exploited to achieve higher power density. A review of some novel cooling methods is initially made. Following... Read More about Assessment of cooling methods for increased power density in electrical machines.

High speed drives review: machines, converters and applications (2016)
Presentation / Conference Contribution
Abebe, R., Di Nardo, M., Gerada, D., Lo Calzo, G., Papini, L., & Gerada, C. High speed drives review: machines, converters and applications. Presented at 42nd Annual Conference of IEEE Industrial Electronics Society (IECON 2016)

The development of new power electronic device and high performance magnetic materials are the main technological factors that have led both industries and research community to focus their attention on high speed electrical drives. Several papers ha... Read More about High speed drives review: machines, converters and applications.

Novel integrative options for passive filter inductor in high speed AC drives (2016)
Presentation / Conference Contribution
Raza Khowja, M., Gerada, C., Vakil, G., Wheeler, P., & Patel, C. (2016, October). Novel integrative options for passive filter inductor in high speed AC drives. Presented at IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, Florence, Italy

This paper presents novel integration options for passive inductor which include: motor-shaped rotational and motor-shaped rotor-less inductor for high speed motor drive system. The novel options have been designed and their performance is compared w... Read More about Novel integrative options for passive filter inductor in high speed AC drives.

Trade-off analysis and design of a high power density PM machine for flooded industrial pump (2016)
Presentation / Conference Contribution
Al-Timimy, A., Degano, M., Xu, Z., Lo Calzo, G., Giangrande, P., Galea, M., Gerada, C., & Zhang, H. Trade-off analysis and design of a high power density PM machine for flooded industrial pump. Presented at 42nd Annual Conference of IEEE Industrial Electronics Society

This paper presents the trade-off analysis and design of a high power-density machine for industrial pump applications. The developed permanent magnet synchronous machine drives an electric, oil flooded pump. Different slot/pole combination and windi... Read More about Trade-off analysis and design of a high power density PM machine for flooded industrial pump.

Design and initial testing of a high speed 45 kW switched reluctance drive for aerospace application (2016)
Journal Article
Bartolo, J. B., Degano, M., Espina, J., & Gerada, C. (2017). Design and initial testing of a high speed 45 kW switched reluctance drive for aerospace application. IEEE Transactions on Industrial Electronics, 64(2), 988-997. https://doi.org/10.1109/TIE.2016.2618342

This paper presents innovative research towards the development of a 45 kW high speed switched reluctance drive as an alternative starter-generator for future aero-engines. To perform such a function the machine had to be designed with a very wide co... Read More about Design and initial testing of a high speed 45 kW switched reluctance drive for aerospace application.

2-D analytical model for dual-stator machines with permanent magnets (2016)
Presentation / Conference Contribution
Golovanov, D., Galea, M., & Gerada, C. 2-D analytical model for dual-stator machines with permanent magnets. Presented at IEEE IECON 2016: the 42nd Annual Conference of IEEE Industrial Electronics Society

This paper proposes an analytical model that considers the torque characteristics and results in an optimum geometry for dual-stator synchronous machines with permanent magnets. The distribution of the magnetic field in the air gap is obtained by sol... Read More about 2-D analytical model for dual-stator machines with permanent magnets.

Thermal management of a permanent magnet motor for an directly coupled pump (2016)
Presentation / Conference Contribution
Xu, Z., Al-Timimy, A., Degano, M., Giangrande, P., Lo Calzo, G., Zhang, H., Galea, M., & Gerada, C. Thermal management of a permanent magnet motor for an directly coupled pump. Presented at International Conference on Electrical Machines (ICEM 2016)

A high speed permanent magnet motor is designed for a flooded industrial pump. Oil in the pump is used to cool the motor. Due to the limitation of space and mass requirement for the application, thermal management is one of the main challenges. This... Read More about Thermal management of a permanent magnet motor for an directly coupled pump.

Distributed current control for multi-three phase synchronous machines in fault conditions (2016)
Presentation / Conference Contribution
Galassini, A., Costabeber, A., Degano, M., Gerada, C., Tessarolo, A., & Castellan, S. Distributed current control for multi-three phase synchronous machines in fault conditions. Presented at XXIIth International Conference on Electrical Machines (ICEM'2016)

Among challenges and requirements of on-going electrification process and future transportation systems there is demand for arrangements with both increased fault tolerance and reliability. Next aerospace, power-train and automotive systems exploitin... Read More about Distributed current control for multi-three phase synchronous machines in fault conditions.

Structural design optimization of a high speed synchronous reluctance machine (2016)
Presentation / Conference Contribution
Di Nardo, M., Lo Calzo, G., Galea, M., & Gerada, C. Structural design optimization of a high speed synchronous reluctance machine. Presented at XXIIth International Conference on Electrical Machines (ICEM'2016)

Synchronous reluctance machines, including the permanent 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, increasing sp... Read More about Structural design optimization of a high speed synchronous reluctance machine.

Short term duty electrical machines (2016)
Presentation / Conference Contribution
Arumugam, P., & Gerada, C. Short term duty electrical machines. Presented at International Conference on Electrical Machines (ICEM'2016)

This paper presents a design of a short term duty electrical machine working in an extreme environment consisting of 80oC ambient temperature and altitudes of over 30,000m. Higher power density is a key factor in the design wherein the machine’s oper... Read More about Short term duty electrical machines.

Design and optimization of a high power density machine for flooded industrial pump (2016)
Presentation / Conference Contribution
Al-Timimy, A., Degano, M., Giangrande, P., Lo Calzo, G., Xu, Z., Galea, M., Gerada, C., Zhang, H., & Xia, L. Design and optimization of a high power density machine for flooded industrial pump. Presented at 22nd International Conference on Electrical Machines (ICEM 2016)

This paper presents the design optimization procedure of a high power-density, permanent magnet synchronous machine for industrial pump applications. The designed machine drives an electric, oil flooded pump. In order to achieve higher torque-density... Read More about Design and optimization of a high power density machine for flooded industrial pump.

Radial force control of multi-sector permanent magnet machines (2016)
Presentation / Conference Contribution
Valente, G., Papini, L., Formentini, A., Gerada, C., & Zanchetta, P. Radial force control of multi-sector permanent magnet machines. Presented at International Conference on Electrical Machines (ICEM 2016)

The paper presents an alternative radial force control technique for a Multi-Sector Permanent Magnet machine (MSPM). Radial force control has been widely investigated for a variety of bearingless machines and can be also applied to conventional PMSM... Read More about Radial force control of multi-sector permanent magnet machines.

High-Speed Solid Rotor Permanent Magnet Machines: Concept and Design (2016)
Journal Article
Arumugam, P., Xu, Z., La Rocca, A., Vakil, G., Dickinson, M., Amankwah, E. K., Hamiti, T., Bozhko, S., Gerada, C., & Pickering, S. (2016). High-Speed Solid Rotor Permanent Magnet Machines: Concept and Design. IEEE Transactions on Transportation Electrification, 2(3), 391-400. https://doi.org/10.1109/TTE.2016.2592684

© 2015 IEEE. This paper proposes a novel solid rotor topology for an interior permanent magnet (IPM) machine, adopted in this case for an aircraft starter-generator design. The key challenge in the design is to satisfy two operating conditions that a... Read More about High-Speed Solid Rotor Permanent Magnet Machines: Concept and Design.

A modular speed-drooped system for high reliability integrated modular motor drives (2016)
Journal Article
Galassini, A., Costabeber, A., Gerada, C., Buticchi, G., & Barater, D. (2016). A modular speed-drooped system for high reliability integrated modular motor drives. IEEE Transactions on Industry Applications, 52(4), 3124-3132. https://doi.org/10.1109/TIA.2016.2540608

Future transportation challenges include a considerable reduction in pollutant emissions at a time when significant increase in demand is predicted. One of the enabling solutions is the electrification of transport systems as this should lead to impr... Read More about A modular speed-drooped system for high reliability integrated modular motor drives.