Research Repository

See what's under the surface


Model predictive control based PID controller for PMSM for propulsion systems (2018)
Conference Proceeding
Abdelrauf, A. A., Saad, W. W., Hebala, A., & Galea, M. (2018). Model predictive control based PID controller for PMSM for propulsion systems. doi:10.1109/ESARS-ITEC.2018.8607585

Model Predictive Control (MPC) is one of the most suitable controllers for industrial applications, especially for constrained systems. However, it requires high computational burden, which is considered as the main drawback. Proportional Integral De... Read More

On the effects of advanced end-winding cooling on the design and performance of electrical machines (2018)
Conference Proceeding
Madonna, V., Paolo, G., Adam, W., & Michael, G. (2018). On the effects of advanced end-winding cooling on the design and performance of electrical machines. doi:10.1109/ICELMACH.2018.8507170

– High performance and reliable electrical machines are often required in modern applications and an appropriate thermal management allows to fulfil such demand. Thermal management is crucial for improving performance, reducing size and preserving th... Read More

An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge (2018)
Journal Article
Huang, Z., Yang, T., Wheeler, P., Galea, M., Giangrande, P., & Chowdhury, S. (2018). An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge. IEEE Transactions on Industrial Electronics, doi:10.1109/TIE.2018.2873539. ISSN 0278-0046

This paper proposes a capacitor voltage regulation method for the dual converter with a floating bridge for aerospace applications. This topology has previously been reported, but with a constrained voltage utilisation factor due to the need for capa... Read More

Thermal analysis of fault-tolerant electrical machines for aerospace actuators (2018)
Journal Article
Madonna, V., Giangrande, P., Galea, M., & Gerada, C. (2018). Thermal analysis of fault-tolerant electrical machines for aerospace actuators. IET Electric Power Applications, doi:10.1049/iet-epa.2018.5153. ISSN 1751-8660

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

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. (2018). Improved thermal management and analysis for stator end-windings of electrical machines. IEEE Transactions on Industrial Electronics, doi:10.1109/tie.2018.2868288. ISSN 0278-0046

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

Investigation of AC copper and iron losses in high-speed high-power density PMSM (2018)
Conference Proceeding
Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2018). Investigation of AC copper and iron losses in high-speed high-power density PMSM. doi:10.1109/ICELMACH.2018.8507166

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

Combined thermofluid and electromagnetic optimisation of stator vent cooling (2018)
Conference Proceeding
Bersch, K., Nuzzo, S., Connor, P., Eastwick, C., Galea, M., Rolston, R., & Vakil, G. (2018). Combined thermofluid and electromagnetic optimisation of stator vent cooling. In Proceedings: 2018 XIII International Conference on Electrical Machines (ICEM)doi:10.1109/icelmach.2018.8507231

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 validated 3-D Co... Read More

Design of fault-tolerant dual three-phase winding PMSM for helicopter landing gear EMA (2018)
Conference Proceeding
Giangrande, P., Madonna, V., Nuzzo, S., & Galea, M. (in press). Design of fault-tolerant dual three-phase winding PMSM for helicopter landing gear EMA

On modern rotorcraft, electro-mechanical actuators (EMAs) are progressively replacing the bulky and more expensive hydraulic and/or pneumatic systems. Although the migration towards alternative actuation solutions, reliability remains a key requireme... Read More

Design of PMSM for EMA employed in secondary flight control systems (2018)
Conference Proceeding
Giangrande, P., Al-Timimy, A., Galassini, A., Papadopoulos, S., Degano, M., & Galea, M. (in press). Design of PMSM for EMA employed in secondary flight control systems. In NA

The more electric aircraft (MEA) initiative aims to improve weight, fuel consumption and maintenance costs of the aircraft, by increasing the use of electric power in actuation systems. Considering this scenario, electromechanical actuators (EMAs) fo... Read More

Impact Of thermal overload on the insulation aging In short duty cycle motors for aerospace (2018)
Conference Proceeding
Madonna, V., Giangrande, P., Lusuardi, L., Cavallini, A., & Galea, M. (in press). Impact Of thermal overload on the insulation aging In short duty cycle motors for aerospace

Electric motors for aerospace applications are often characterised by short-time duty rather than continuous-duty operations. Some of the main requirements for these machines are high torque density and reliability. Considerable torque density improv... Read More

Electrical power generation in aircraft: review, challenges and opportunities (2018)
Journal Article
Madonna, V., Giangrande, P., & Galea, M. (in press). Electrical power generation in aircraft: review, challenges and opportunities. IEEE Transactions on Transportation Electrification, doi:10.1109/TTE.2018.2834142. ISSN 2332-7782

The constant growth of air traffic, the demand for performance optimization and the need for decreasing both operating and maintenance costs have encouraged the aircraft industry to move towards more electric solutions. As a result of this trend, ele... Read More

Harmonic reduction methods for electrical generation: a review (2018)
Journal Article
Fallows, D., Nuzzo, S., Costabeber, A., & Galea, M. (in press). Harmonic reduction methods for electrical generation: a review. IET Generation, Transmission and Distribution, doi:10.1049/iet-gtd.2018.0008. ISSN 1751-8687

This paper provides a comprehensive literature review of techniques for harmonic related power quality improvement of electrical generation systems. An increasing interest in these aspects is due to the ever more stringent power quality... Read More

A CFD and experimental investigation into a non-intrusive method for measuring cooling air mass flow rate through a synchronous generator (2018)
Conference Proceeding
Bersch, K., Connor, P. H., Eastwick, C. N., & Galea, M. (2018). A CFD and experimental investigation into a non-intrusive method for measuring cooling air mass flow rate through a synchronous generator

This paper presents a detailed methodology for a non-intrusive measurement of cooling air mass flow rate that enables an overall machine evaluation. This approach enables the simultaneous measurement of air mass flow with shaft torque at differing op... Read More

Design and losses analysis of a high power density machine for flooded pump applications (2018)
Journal Article
Al-Timimy, A., Giangrande, P., Degano, M., Zeyuan, X., Galea, M., Gerada, C., …Xia, L. (in press). Design and losses analysis of a high power density machine for flooded pump applications. IEEE Transactions on Industry Applications, doi:10.1109/TIA.2018.2821623. ISSN 0093-9994

This paper describes the design process of a 10 kW 19000 rpm high power density surface mounted permanent magnet synchronous machine for a directly coupled pump application. In order to meet the required specifications, a compact machine, with coolin... Read More

Influence of rotor endcaps on the electromagnetic performance of high speed PM machine (2018)
Journal Article
Al-Timimy, A., Alani, M., Degano, M., Giangrande, P., Galea, M., & Gerada, C. (2018). Influence of rotor endcaps on the electromagnetic performance of high speed PM machine. IET Electric Power Applications, 12(8), (1142–1149). doi:10.1049/iet-epa.2017.0811. ISSN 1751-8660

Surface-mounted permanent magnet (SPM) machines are preferred for high-speed aerospace applications over induction and switched reluctance machines, since they combine the advantages of high torque density and efficiency. Also, in aerospace applicati... Read More

Considerations on the effects that core material machining has on an electrical machine's performance (2018)
Journal Article
Al-Timimy, A., Vakil, G., Degano, M., Giangrande, P., Gerada, C., & Galea, M. (2018). Considerations on the effects that core material machining has on an electrical machine's performance. IEEE Transactions on Energy Conversion, 33(3), (1154-1163). doi:10.1109/TEC.2018.2808041. ISSN 0885-8969

An often-overlooked aspect during the development process of electrical machines, is the validity and accuracy of the machine material properties being used at the design stage. Designers usually consider the data provided by the materials supplier,... Read More

Integrated motor drive design for weight optimization (2017)
Conference Proceeding
Cheong, B., Giangrande, P., Galea, M., Zanchetta, P., & Wheeler, P. (2017). Integrated motor drive design for weight optimization. In 2017 IEEE Energy Conversion Congress and Exposition (ECCE)doi:10.1109/ECCE.2017.8095869

The More-Electric Aircraft (MEA) concept has been introduced as part of the process of reducing the environmental impact of air travel. Incorporating more electrical systems including motor drives has become increasingly attractive researched. High p... Read More