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Investigation of AC Copper and Iron Losses in High-Speed High-Power Density PMSM (2018)
Presentation / Conference Contribution
Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2018, September). Investigation of AC Copper and Iron Losses in High-Speed High-Power Density PMSM. Presented at 23rd International Conference on Electrical Machines (ICEM 2018), Alexandroupoli, Greece

This paper presents a detailed investigation of AC copper losses in high-speed high-power density permanent magnet synchronous machine. For parallel strands winding, it is not easy to accurately estimate the AC copper losses using finite element mode... Read More about Investigation of AC Copper and Iron Losses in High-Speed High-Power Density PMSM.

Combined Thermofluid and Electromagnetic Optimisation of Stator Vent Cooling (2018)
Presentation / Conference Contribution
Bersch, K., Nuzzo, S., Connor, P. H., Eastwick, C. N., Galea, M., Rolston, R., & Vakil, G. (2018, September). Combined Thermofluid and Electromagnetic Optimisation of Stator Vent Cooling. Presented at 2018 XIII International Conference on Electrical Machines (ICEM), Alexandroupoli, Greece

© 2018 IEEE. A combined electromagnetic and thermal modelling approach has been developed to optimise the design of multiple radial stator vents in an air-cooled, synchronous generator with a power rating of several hundred kVA. An experimentally val... Read More about Combined Thermofluid and Electromagnetic Optimisation of Stator Vent Cooling.

Design of an Integrated Inductor for 45kW Aerospace Starter-Generator (2018)
Presentation / Conference Contribution
Raza Khowja, M., Gerada, C., Vakil, G., Quadri, S. Q., Wheeler, P., & Patel, C. (2018, June). Design of an Integrated Inductor for 45kW Aerospace Starter-Generator. Presented at 2018 IEEE Transportation and Electrification Conference and Expo (ITEC), Long, CA, USA

A close physical and functional integration of passive components is required to make an efficient and power dense overall system. Such power dense systems are a prerequisite in aerospace and marine applications. This paper presents a design of an in... Read More about Design of an Integrated Inductor for 45kW Aerospace Starter-Generator.

Mass Production Costing of Induction Machines for Automotive Applications (2018)
Presentation / Conference Contribution
Hundak, V., Cox, T., Vakil, G., & Gerada, C. (2018, June). Mass Production Costing of Induction Machines for Automotive Applications. Presented at 2018 IEEE Transportation and Electrification Conference and Expo (ITEC), Long Beach, CA, USA

Cost is one of the key parameters of electric machines designed for automotive applications. In order to keep manufacturing cost low, it is desirable to estimate the manufacturing cost of the machine in the early stages of the design process. For thi... Read More about Mass Production Costing of Induction Machines for Automotive Applications.

Electrical Machine Rotor Shielding for Low Cost Electrical Drive (2018)
Presentation / Conference Contribution
Al-Ani, M., Vakil, G., & Gerada, C. (2018, June). Electrical Machine Rotor Shielding for Low Cost Electrical Drive. Presented at 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018, Long Beach, California, USA

Electrical machine rotor shielding has been proposed for high-speed electrical machines, i.e. ≥50krpm, where a smooth current waveform becomes difficult and costly to generate due to the required high switching frequency. The rotor shielding is used... Read More about Electrical Machine Rotor Shielding for Low Cost Electrical Drive.

Packaging technology for a highly integrated 10kV SiC MOSFET module (2018)
Presentation / Conference Contribution
Mouawad, B., Di Marino, C., Li, J., Skuriat, R., & Johnson, M. (2018, August). Packaging technology for a highly integrated 10kV SiC MOSFET module. Paper presented at 14th International Seminar on Power Semiconductors (ISPS 2018), Prague, Czech Republic

High-voltage SiC devices offer an attractive combination of fast switching and low losses, giving application users unprecedented levels of flexibility in choice of topology and control strategy for medium- and high-voltage power conversion. However,... Read More about Packaging technology for a highly integrated 10kV SiC MOSFET module.

Unipolar single reference multicarrier sinusoidal pulse width modulation based 7-level inverter with reduced number of semiconductor switches for renewable energy applications (2018)
Presentation / Conference Contribution
Raj, K., Mahajan, S. B., Sanjeevikumar, P., Frede, B., Pat, W., & Muhammad H., R. (2018, August). Unipolar single reference multicarrier sinusoidal pulse width modulation based 7-level inverter with reduced number of semiconductor switches for renewable energy applications. Paper presented at IEEE-PEMC 2018 - 18th International Conference on Power Electronics and Motion Control

In the present scenario of increasing power
demand and depletion of fossil fuel results in the research
advancements in the field of renewable energy sources. Among
various types of renewable energy sources, photovoltaic related
applications are... Read More about Unipolar single reference multicarrier sinusoidal pulse width modulation based 7-level inverter with reduced number of semiconductor switches for renewable energy applications.

Single Stage Dual Active Bridge AC-DC Converter with Active Power Decoupling (2018)
Presentation / Conference Contribution
Gottardo, D., De Lillo, L., Empringham, L., Costabeber, A., & Chen, L. (2018, June). Single Stage Dual Active Bridge AC-DC Converter with Active Power Decoupling. Presented at 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Amalfi, Italy

The paper introduces a new a isolated DC-AC DAB converter topology, capable of active power decoupling on the AC side of the transformer, made up of two full bridges with no additional active component. The differential voltage modulated by the DC-si... Read More about Single Stage Dual Active Bridge AC-DC Converter with Active Power Decoupling.

Energy harvesting utilizing reciprocating flow-induced torsional vibration on a T-shaped cantilever beam (2018)
Journal Article
Zhang, G., Klumpner, C., & Lin, Y.-J. (2018). Energy harvesting utilizing reciprocating flow-induced torsional vibration on a T-shaped cantilever beam. Smart Materials and Structures, https://doi.org/10.1088/1361-665x/aadb6d

This paper proposes a T-shaped cantilever energy harvester powered by flow-induced torsional vibration. To collect and convert the mechanical (kinetic) energy into electric power, a pair of symmetrical acrylic cylindrical bluff bodies were installed... Read More about Energy harvesting utilizing reciprocating flow-induced torsional vibration on a T-shaped cantilever beam.

A methodology to remove stator skew in small-medium size synchronous generators via innovative damper cage designs (2018)
Journal Article
Nuzzo, S., Bolognesi, P., Vakil, G., Fallows, D., Gerada, C., Brown, N. L., & Galea, M. (2019). A methodology to remove stator skew in small-medium size synchronous generators via innovative damper cage designs. IEEE Transactions on Industrial Electronics, 66(6), 4926-4307. https://doi.org/10.1109/tie.2018.2864699

This paper proposes and investigates an innovative methodology that can have a significant impact on the market potential of wound field, small-medium size synchronous generators. The technique proposed here is aimed at removing the need for the trad... Read More about A methodology to remove stator skew in small-medium size synchronous generators via innovative damper cage designs.