All Outputs (115)

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.

Analytical modelling approach for switched reluctance machines with deep saturation (2016)
Conference Proceeding
Ding, X., Rashed, M., Hill, C. I., & Bozhko, S. (2016). Analytical modelling approach for switched reluctance machines with deep saturation. In 2016 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) (1-6). https://doi.org/10.1109/ESARS-ITEC.2016.7841411

This paper presents an analytical modelling approach for Switched Reluctance Machines (SRMs) with a wide saturation range. There are many existing analytical modelling approaches in literature that give good accuracy, however most do not consider mod... Read More about Analytical modelling approach for switched reluctance machines with deep saturation.

A novel five-level optimized carrier multilevel PWM quad-inverter six-phase AC drive (2016)
Conference Proceeding
Sanjeevikumar, P., Blaabjerg, F., Wheeler, P., Fedak, V., Duran, M., & Siano, P. (2016). A novel five-level optimized carrier multilevel PWM quad-inverter six-phase AC drive. In Proceedings - 2016 IEEE International Power Electronics and Motion Control Conference (PEMC) (26-31). https://doi.org/10.1109/EPEPEMC.2016.7751969

A novel single carrier pulse-width modulation (PWM) for a new quad-inverter configuration for multilevel six-phase asymmetrical open-winding ac converter is proposed in this article. Modularity of the circuit consist of four standard two-level voltag... Read More about A novel five-level optimized carrier multilevel PWM quad-inverter six-phase AC drive.

Performance benchmark of Si IGBTs vs. SiC MOSFETs in small-scale wind energy conversion systems (2016)
Conference Proceeding
Hussein, A., Castellazzi, A., Wheeler, P., & Klumpner, C. (in press). Performance benchmark of Si IGBTs vs. SiC MOSFETs in small-scale wind energy conversion systems.

Modern power electronics devices based on SiC power MOSFETs technology become more demanding in the last few years. They show better performance over Si-IGBTs on renewable energy power conversion systems due to their higher switching frequency, highe... Read More about Performance benchmark of Si IGBTs vs. SiC MOSFETs in small-scale wind energy conversion systems.

Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator (2016)
Conference Proceeding
Bozhko, S., Rashed, M., Yeoh, S. S., Yang, T., & Hill, C. I. (in press). Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator.

This paper presents control analysis and design for an aircraft electric starter-generator system based on a Permanent Magnet Machine (PMM) operated in Flux-Weakening mode (FW). The focus is on detailed stability analysis which helped to discover an... Read More about Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator.

Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids (2016)
Conference Proceeding
Lee, Y., Vakil, G., Feldman, R., Goodman, A., & Wheeler, P. (in press). Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids.

High-power DC-DC converter will be one of the essential technologies for the future DC grids. Especially, a three-phase dual-active bridge DC-DC (3DAB) Converter is highly suitable for high-power DC systems. Key component within this converter is the... Read More about Design optimization of a high-power transformer for three-phase dual active bridge DC-DC converter for MVDC grids.

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.

A variable frequency angle-based repetitive control for torque ripple reduction in PMSMs (2016)
Conference Proceeding
Tang, M., Gaeta, A., Formentini, A., & Zanchetta, P. (2016). A variable frequency angle-based repetitive control for torque ripple reduction in PMSMs.

This paper presents a novel method for torque ripple reduction in PMSM drives at variable speed, using a combination of angle-based repetitive control and deadbeat current control. Based on the internal model principle, repetitive control is capable... Read More about A variable frequency angle-based repetitive control for torque ripple reduction in PMSMs.

Analysis of conducted emissions from an Electric Nacelle Anti-Ice power control system (2016)
Conference Proceeding
Nothofer, A., Tarisciotti, L., Zhou, Q., Benson, T. M., Greedy, S., & Christopoulos, C. (2016). Analysis of conducted emissions from an Electric Nacelle Anti-Ice power control system. In 2016 International Symposium on Electromagnetic Compatibility - EMC EUROPE. https://doi.org/10.1109/EMCEurope.2016.7739261

In this paper a high frequency model of the Electrical Nacelle Anti-Ice (ENAI) system is described for a typical aircraft application. The ENAI system, usually modelled only at the normal operating frequency, is modified in order to include a detaile... Read More about Analysis of conducted emissions from an Electric Nacelle Anti-Ice power control system.

SiC and GaN power transistors switching energy evaluation in hard and soft switching conditions (2016)
Conference Proceeding
Li, K., Evans, P., & Johnson, C. M. (2016). SiC and GaN power transistors switching energy evaluation in hard and soft switching conditions.

SiC and GaN power transistors switching energy are compared in this paper. In order to compare switching energy Esw of the same power rating device, a theoretical analysis is given to compare SiC device conduction loss and switching losses change whe... Read More about SiC and GaN power transistors switching energy evaluation in hard and soft switching conditions.

Impact of SiC technology in a three-port active bridge converter for energy storage integrated solid state transformer applications (2016)
Conference Proceeding
Wang, Z., Castellazzi, A., Saeed, S., Navarro-Rodríguez, Á., & Garcia, P. (2016). Impact of SiC technology in a three-port active bridge converter for energy storage integrated solid state transformer applications.

Silicon Carbide (SiC) MOSFET power module has become commercially available in the past few years, and it is attractive in solid state transformers (SSTs) applications to replace Silicon (Si)-based IGBTs. This paper is focused on the efficiency compa... Read More about Impact of SiC technology in a three-port active bridge converter for energy storage integrated solid state transformer applications.

Impulse transformer based secondary-side self-powered gate-driver for wide-range PWM operation of SiC power MOSFETs (2016)
Conference Proceeding
Garcia, J., Gurpinar, E., & Castellazzi, A. (2016). Impulse transformer based secondary-side self-powered gate-driver for wide-range PWM operation of SiC power MOSFETs.

This work proposes a solution for an isolated gate driver for SiC MOSFETs, based on a magnetic transformer that simultaneously provides to the secondary side the turn-on and turn-off gate signals and the power required for an adequate gate control. T... Read More about Impulse transformer based secondary-side self-powered gate-driver for wide-range PWM operation of SiC power MOSFETs.

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.

Conceptual design of battery energy storage for aircraft hybrid propulsion system (2016)
Conference Proceeding
Rashed, M., Le Peuvedic, J., & Bozhko, S. (2016). Conceptual design of battery energy storage for aircraft hybrid propulsion system.

The paper presents a conceptual design approach for Energy Storage (ES) devices in advanced hybrid propulsion system for small aircrafts. The study targets operational improvement and reduction of fuel consumption for different flight missions. Power... Read More about Conceptual design of battery energy storage for aircraft hybrid propulsion system.

New configurations of power converters for grid interconnection systems (2016)
Conference Proceeding
Rivera, M., Toleda, S., Nasir, U., Costabeber, A., & Wheeler, P. (2016). New configurations of power converters for grid interconnection systems.

The increased penetration of renewable energy sources and other distributed energy sources has been seen nowadays. In this scenario power converters play a crucial role by providing the interconnection of these energy sources. This paper presents new... Read More about New configurations of power converters for grid interconnection systems.

Hybrid inverter arrangements to facilitate reduced switching losses of the main inverter (2016)
Conference Proceeding
Klumpner, C., & Zargar, T. (2016). Hybrid inverter arrangements to facilitate reduced switching losses of the main inverter.

This paper investigates two hybrid inverter topologies consisting of a slow switching DC/AC main voltage source inverter and output series connected low-voltage rated, fast switching auxiliary inverters that may be suitable for medium and high voltag... Read More about Hybrid inverter arrangements to facilitate reduced switching losses of the main inverter.

The Series Bridge Converter (SBC): A hybrid modular multilevel converter for HVDC applications (2016)
Conference Proceeding
Amankwah, E. K., Costabeber, A., Watson, A., Trainer, D., Jasim, O., Chivite-Zabalza, J., & Clare, J. (2016). The Series Bridge Converter (SBC): A hybrid modular multilevel converter for HVDC applications. In 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe) (1-9). https://doi.org/10.1109/EPE.2016.7695361

This paper presents a novel hybrid modular multilevel voltage source converter suitable for HVDC applications. It has the advantages of other modular multilevel topologies and can be made more compact making it attractive for offshore stations and ci... Read More about The Series Bridge Converter (SBC): A hybrid modular multilevel converter for HVDC applications.

A novel full soft-switching resonant power converter for mid-feeder voltage regulation of low voltage distribution network (2016)
Conference Proceeding
Ji, C., Watson, A. J., Clare, J. C., & Johnson, C. M. (2016). A novel full soft-switching resonant power converter for mid-feeder voltage regulation of low voltage distribution network. In 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe) (1-6). https://doi.org/10.1109/EPE.2016.7695398

This paper presents a novel resonant based, high power density power electronics converter solution for mid-feeder voltage regulation of a low voltage (LV) distribution network. Owing to the use of high switching frequency operation and a full soft-s... Read More about A novel full soft-switching resonant power converter for mid-feeder voltage regulation of low voltage distribution network.

A low capacitance single-phase AC-DC converter with inherent power ripple decoupling (2016)
Conference Proceeding
Gottardo, D., De Lillo, L., Empringham, L., & Costabeber, A. (2016). A low capacitance single-phase AC-DC converter with inherent power ripple decoupling.

This paper proposes a new single-phase AC-DC conversion topology with inherent power ripple decoupling, based on the combination of a PWM H-bridge inverter, an AC side LC filter and a ZVS line commutated H-bridge. A capacitor on the AC side is used a... Read More about A low capacitance single-phase AC-DC converter with inherent power ripple decoupling.