All Outputs (454)

Design and testing of PMSM for aerospace EMA applications (2018)
Presentation / Conference Contribution
Giangrande, P., Madonna, V., Sala, G., Kladas, A., Gerada, C., & Galea, M. (2018, October). Design and testing of PMSM for aerospace EMA applications. Presented at IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, Washington, DC

The more-electric aircraft initiative represents an important technology step-change for the aircraft industry. The reduction of both fuel consumption and environmental impact are leading to alternative solutions for actuating the flight control surf... Read More about Design and testing of PMSM for aerospace EMA applications.

Consideration on Eddy Current Reduction Techniques for Solid Materials Used in Unconventional Magnetic Circuits (2018)
Journal Article
Mohammed, A. M., Galea, M., Cox, T., & Gerada, C. (2019). Consideration on Eddy Current Reduction Techniques for Solid Materials Used in Unconventional Magnetic Circuits. IEEE Transactions on Industrial Electronics, 66(6), 4870-4879. https://doi.org/10.1109/TIE.2018.2875641

The use of solid materials in tubular, linear machines has significant manufacturing benefits, as this removes the need for an axially laminated stator. However, this comes at the cost of extra eddy current losses. In this paper, a detailed analysis... Read More about Consideration on Eddy Current Reduction Techniques for Solid Materials Used in Unconventional Magnetic Circuits.

Mid-Complexity Circuital Model of Induction Motor with Rotor Cage: A Numerical Resolution (2018)
Presentation / Conference Contribution
Bolognesi, P., Gerada, C., Papini, L., & Marfoli, A. (2018, September). Mid-Complexity Circuital Model of Induction Motor with Rotor Cage: A Numerical Resolution. Presented at XIII International Conference on Electrical Machines (ICEM 2018), Alexandroupoli, Greece

A general middle complexity model of electromagnetic devices is applied to a cage induction motor. Such modelling approach has been simplified and adapted in order to pursue a fair representation of the electrical machine. Particular attention was gi... Read More about Mid-Complexity Circuital Model of Induction Motor with Rotor Cage: A Numerical Resolution.

An Integrated Method for Three-Phase AC Excitation and High-Frequency Voltage Signal Injection for Sensorless Starting of Aircraft Starter/Generator (2018)
Journal Article
Wei, J., Xu, H., Zhou, B., Zhang, Z., & Gerada, C. (2019). An Integrated Method for Three-Phase AC Excitation and High-Frequency Voltage Signal Injection for Sensorless Starting of Aircraft Starter/Generator. IEEE Transactions on Industrial Electronics, 66(7), 5611-5622. https://doi.org/10.1109/tie.2018.2871795

© 1982-2012 IEEE. This paper proposes an integrated method of three-phase ac excitation and high-frequency voltage signal injection (HFVSI) for sensorless controlled starting of brushless synchronous machines (BSM) used as starter/generator in variab... Read More about An Integrated Method for Three-Phase AC Excitation and High-Frequency Voltage Signal Injection for Sensorless Starting of Aircraft Starter/Generator.

Study of a Silicon Carbide MOSFET Power Module to Establish the Benefits of Adding Anti-parallel Schottky Diodes (2018)
Presentation / Conference Contribution
Trentin, A., Hind, D., Degano, M., Tighe, C., Arevalo, S. L., Yang, L., Johnson, M., Wheeler, P., Gerada, C., Harris, A., & Packwood, M. (2018, September). Study of a Silicon Carbide MOSFET Power Module to Establish the Benefits of Adding Anti-parallel Schottky Diodes. Presented at 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, USA

The majority of commercial Silicon Carbide (SiC) MOSFET based power modules available on the market today also include SiC Schottky diodes placed in anti-parallel with the MOSFETs. Using an accurate electrical and thermal simulation model this paper... Read More about Study of a Silicon Carbide MOSFET Power Module to Establish the Benefits of Adding Anti-parallel Schottky Diodes.

Thermal analysis of fault-tolerant electrical machines for aerospace actuators (2018)
Journal Article
Madonna, V., Giangrande, P., Galea, M., & Gerada, C. (2019). Thermal analysis of fault-tolerant electrical machines for aerospace actuators. IET Electric Power Applications, 13(7), 843 – 852. https://doi.org/10.1049/iet-epa.2018.5153

For safety critical applications, electrical machines need to satisfy several constraints, in order to be considered fault-tolerant. In fact, if specific design choices and appropriate control strategies are embraced, fault-tolerant machines can oper... Read More about Thermal analysis of fault-tolerant electrical machines for aerospace actuators.

Improved thermal management and analysis for stator end-windings of electrical machines (2018)
Journal Article
Madonna, V., Walker, A., Giangrande, P., Serra, G., Gerada, C., & Galea, M. (2019). Improved thermal management and analysis for stator end-windings of electrical machines. IEEE Transactions on Industrial Electronics, 66(7), 5057-5069. https://doi.org/10.1109/tie.2018.2868288

In electrical machine design, thermal management plays a key role in improving performance and reducing size. End-windings are commonly identified as the machine hot-spot. Hence, lowering and predicting end-windings temperature are crucial tasks in t... Read More about Improved thermal management and analysis for stator end-windings of electrical machines.

Enhanced power sharing transient with droop controllers for multi-three-phase synchronous electrical machines (2018)
Journal Article
Galassini, A., Costabeber, A., Degano, M., Gerada, C., Tessarolo, A., & Menis, R. (2019). Enhanced power sharing transient with droop controllers for multi-three-phase synchronous electrical machines. IEEE Transactions on Industrial Electronics, 66(7), 5600-5610. https://doi.org/10.1109/tie.2018.2868029

This paper presents a droop-based dis- tributed control strategy for multi-three-phase machines that provides augmented controllability during power shar- ing transients. The proposed strategy is able to mitigate the mutual interactions among differe... Read More about Enhanced power sharing transient with droop controllers for multi-three-phase synchronous electrical machines.

Double Rotor Synchronous Reluctance Machine: Analysis towards Torque Capability (2018)
Presentation / Conference Contribution
Al-Ani, M., Mahmoud, H., Degano, M., & Gerada, C. (2018, September). Double Rotor Synchronous Reluctance Machine: Analysis towards Torque Capability. Presented at 23rd International Conference on Electrical Machines (ICEM 2018), Alexandroupoli, Greece

© 2018 IEEE. This paper presents a comparative analysis of double rotor synchronous reluctance machines. Different topologies of the proposed machine have been investigated, such as double rotor with double-sided stator and double rotor with single-s... Read More about Double Rotor Synchronous Reluctance Machine: Analysis towards Torque Capability.

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.

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.

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.

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.

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.

Development of aircraft electric starter-generator system based-on active rectification technology (2018)
Journal Article
Bozhko, S., Yang, T., Le Peuvedic, J.-M., Arumugam, P., Degano, M., La Rocca, A., Xu, Z., Rashed, M., Fernando, W., Hill, C. I., Eastwick, C., Pickering, S., Gerada, C., & Wheeler, P. (2018). Development of aircraft electric starter-generator system based-on active rectification technology. IEEE Transactions on Transportation Electrification, 4(4), 985-996. https://doi.org/10.1109/TTE.2018.2863031

More-electric aircraft (MEA) has become a dominant trend for modern aircraft. On-board MEA, many functions, which are conventionally driven by pneumatic and hydraulic power, are replaced with electrical subsystems. Starting aircraft engines with an e... Read More about Development of aircraft electric starter-generator system based-on active rectification technology.

Response to Discussion of “A modular speed-drooped system for high reliability integrated modular motor drives” (2018)
Journal Article
Galassini, A., Costabeber, A., Degano, M., Gerada, C., Buticchi, G., & Barater, D. (2018). Response to Discussion of “A modular speed-drooped system for high reliability integrated modular motor drives”. IEEE Transactions on Industry Applications, 54(5), 4994-4995. https://doi.org/10.1109/tia.2018.2858191

Design of a 43kW switched reluctance machine for a high performance hybrid electric vehicle (2018)
Presentation / Conference Contribution
Talha, A., Vakil, G., Cox, T., & Gerada, C. (2018, April). Design of a 43kW switched reluctance machine for a high performance hybrid electric vehicle. Presented at PEMD 2018 - 9th International Conference on Power Electronics, Machines and Drives

A switched reluctance machine (SRM) is very robust and capable to perform well under harsh conditions. It is simple in construction and avoids the use of magnets so it is cheap to manufacture. The powertrain of a hybrid vehicle presents challenging c... Read More about Design of a 43kW switched reluctance machine for a high performance hybrid electric vehicle.

Dielectric breakdown of alumina thin films produced by pulsed direct current magnetron sputtering (2018)
Journal Article
Hanby, B. V., Stuart, B. W., Grant, C., Moffat, J., Blissett, J., Gerada, C., Gimeno-Fabra, M., & Grant, D. M. (2018). Dielectric breakdown of alumina thin films produced by pulsed direct current magnetron sputtering. Thin Solid Films, 662, 145-154. https://doi.org/10.1016/j.tsf.2018.07.004

Alumina films (~2 μm thick) were deposited with a mixed Cu/Al interlayer onto copper. Direct current (DC)/Pulsed DC (PDC) magnetron sputtering techniques were independently compared for reactive alumina sputtering. In DC sputtered films, elemental al... Read More about Dielectric breakdown of alumina thin films produced by pulsed direct current magnetron sputtering.

Performance Improvement of Bearingless Multisector PMSM With Optimal Robust Position Control (2018)
Journal Article
Valente, G., Formentini, A., Papini, L., Gerada, C., & Zanchetta, P. (2019). Performance Improvement of Bearingless Multisector PMSM With Optimal Robust Position Control. IEEE Transactions on Power Electronics, 34(4), 3575-3585. https://doi.org/10.1109/TPEL.2018.2853038

© 2018 IEEE. Bearingless machines are relatively new devices that consent to suspend and spin the rotor at the same time. They commonly rely on two independent sets of three-phase windings to achieve a decoupled torque and suspension force control. I... Read More about Performance Improvement of Bearingless Multisector PMSM With Optimal Robust Position Control.

A Smart Transformer-Rectifier Unit for the More Electric Aircraft (2018)
Presentation / Conference Contribution
Buticchi, G., Gerada, C., Ko, Y. J., & Liserre, M. (2018, June). A Smart Transformer-Rectifier Unit for the More Electric Aircraft. Presented at 2018 IEEE 27th International Symposium on Industrial Electronics (ISIE), Cairns, Australia

In the framework of the More Electric Aircraft (MEA), an efficient and flexible power distribution system is of paramount importance. Considering the presence of both AC and DC loads at multiple voltage levels, the distribution system of the most mod... Read More about A Smart Transformer-Rectifier Unit for the More Electric Aircraft.