Damper cage loss reduction and no-load voltage THD improvements in salient-pole synchronous generators

Nuzzo, Stefano; Galea, Michael; Gerada, C.; Gerada, David; Mebarki, Abdelslam; Brown, N.L.

Axial position estimation of conical shaped motor for green taxiing application (2016)
Conference Proceeding
Roggia, S., Galea, M., Gerada, C., & Cupertino, F. (2016). Axial position estimation of conical shaped motor for green taxiing application. In 2016 IEEE Energy Conversion Congress and Exposition (ECCE) - Proceedings (1-6). https://doi.org/10.1109/ECCE.2016.7854895

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)
Conference Proceeding
Papini, L., Tarisciotti, L., Costabeber, A., Gerada, C., & Wheeler, P. (2016). Active Magnetic Bearing system design featuring a predictive current control. In IECON 2016 Proceedings - 42nd Annual Conference of the IEEE Industrial Electronics Society (3217-3222). https://doi.org/10.1109/IECON.2016.7793444

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)
Conference Proceeding
Yang, T., Cox, T., Degano, M., Bozhko, S., & Gerada, C. (2016). History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels.

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.

Lifetime consumption and degradation analysis of the winding insulation of electrical machines (2016)
Conference Proceeding
Sciascera, C., Galea, M., Giangrande, P., & Gerada, C. (in press). Lifetime consumption and degradation analysis of the winding insulation of electrical machines.

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)
Conference Proceeding
Walker, A., Galea, M., Gerada, D., Gerada, C., Mebraki, A., & Brown, N. (2016). Development and design of a high performance traction machine for the FreedomCar 2020 traction machine targets. In Proceedings - 2016 XXII International Conference on Electrical Machines (ICEM) (1611-1617). https://doi.org/10.1109/ICELMACH.2016.7732739

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)
Conference Proceeding
Tighe, C., Gerada, C., & Pickering, S. (in press). Assessment of cooling methods for increased power density in electrical machines.

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)
Conference Proceeding
Abebe, R., Di Nardo, M., Gerada, D., Lo Calzo, G., Papini, L., & Gerada, C. (2016). High speed drives review: machines, converters and applications.

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)
Conference Proceeding
Raza Khowja, M., Gerada, C., Vakil, G., Wheeler, P., & Patel, C. (2016). Novel integrative options for passive filter inductor in high speed AC drives. In IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society. https://doi.org/10.1109/IECON.2016.7793661

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)
Conference Proceeding
Al-Timimy, A., Degano, M., Xu, Z., Lo Calzo, G., Giangrande, P., Galea, M., …Zhang, H. (2016). Trade-off analysis and design of a high power density PM machine for flooded industrial pump.

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.

2-D analytical model for dual-stator machines with permanent magnets (2016)
Conference Proceeding
Golovanov, D., Galea, M., & Gerada, C. (2016). 2-D analytical model for dual-stator machines with permanent magnets.

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.

Stator and rotor vent modelling in a MVA rated synchronous machine (2016)
Conference Proceeding
Connor, P. H., Eastwick, C., Pickering, S. J., Gerada, C., & Rolston, R. (2016). Stator and rotor vent modelling in a MVA rated synchronous machine. In 2016 XXII International Conference on Electrical Machines (ICEM) (571-577). https://doi.org/10.1109/ICELMACH.2016.7732583

An investigation into the solution dependence of a conjugate heat transfer computational fluid dynamics (CFD) model of a synchronous generator, with respect to meshing, has been carried out. Utilising CFD as a tool for investigating the airflow and t... Read More about Stator and rotor vent modelling in a MVA rated synchronous machine.

Short term duty electrical machines (2016)
Conference Proceeding
Arumugam, P., & Gerada, C. (2016). Short term duty electrical machines.

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.

Structural design optimization of a high speed synchronous reluctance machine (2016)
Conference Proceeding
Di Nardo, M., Lo Calzo, G., Galea, M., & Gerada, C. (2016). Structural design optimization of a high speed synchronous reluctance machine.

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.

Distributed current control for multi-three phase synchronous machines in fault conditions (2016)
Conference Proceeding
Galassini, A., Costabeber, A., Degano, M., Gerada, C., Tessarolo, A., & Castellan, S. (2016). Distributed current control for multi-three phase synchronous machines in fault conditions.

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.

Thermal management of a permanent magnet motor for an directly coupled pump (2016)
Conference Proceeding
Xu, Z., Al-Timimy, A., Degano, M., Giangrande, P., Lo Calzo, G., Zhang, H., …Gerada, C. (2016). Thermal management of a permanent magnet motor for an directly coupled pump.

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.

Design and optimization of a high power density machine for flooded industrial pump (2016)
Conference Proceeding
Al-Timimy, A., Degano, M., Giangrande, P., Lo Calzo, G., Xu, Z., Galea, M., …Xia, L. (2016). Design and optimization of a high power density machine for flooded industrial pump.

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)
Conference Proceeding
Valente, G., Papini, L., Formentini, A., Gerada, C., & Zanchetta, P. (2016). Radial force control of multi-sector permanent magnet machines.

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.

The importance of considering pushback time and arrivals when routing departures on the ground at airports (2016)
Conference Proceeding
Stergianos, C., Atkin, J., Schittekat, P., Nordlander, T. E., Gerada, C., & Morvan, H. (in press). The importance of considering pushback time and arrivals when routing departures on the ground at airports.

With the constant increase in air traffic, airports are facing capacity problems. Many airports are increasingly interested in utilising optimisation methods for specific airport processes. However, many such processes do happen in parallel, and maxi... Read More about The importance of considering pushback time and arrivals when routing departures on the ground at airports.

Damper cage loss reduction and no-load voltage THD improvements in salient-pole synchronous generators (2016)
Conference Proceeding
Nuzzo, S., Galea, M., Gerada, C., Gerada, D., Mebarki, A., & Brown, N. (2016). Damper cage loss reduction and no-load voltage THD improvements in salient-pole synchronous generators.

Salient-pole synchronous generators (SG) have a long history of utilization as reliable power generation systems. Important aspects of such generators include a high power-to-weight ratio, high efficiency and a low cost per kVA output [1]. Another cr... Read More about Damper cage loss reduction and no-load voltage THD improvements in salient-pole synchronous generators.

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