All Outputs (63)

Optimized Sizing of IPM Machines for Automotive Traction Application (2019)
Presentation / Conference Contribution
Valente, G., Gerada, D., Degano, M., Gerada, C., Foulsham, J., & Beeby, D. (2019, May). Optimized Sizing of IPM Machines for Automotive Traction Application. Presented at 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, CA, USA

This paper presents the implementation of an electrical machine design tool including its overall architecture. The tool is flexible and can be employed for the sizing of any permanent magnet synchronous machine. The case study considered in this wor... Read More about Optimized Sizing of IPM Machines for Automotive Traction Application.

A Complete Equivalent Circuit Model for Linear Induction Motor Considering Thrust, Vertical and Transversal Forces (2019)
Presentation / Conference Contribution
Zeng, D., Lv, G., Zhou, T., & Degano, M. (2019, May). A Complete Equivalent Circuit Model for Linear Induction Motor Considering Thrust, Vertical and Transversal Forces. Presented at 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, CA, USA

Since the linear induction motors working with a laterally asymmetric secondary is very common, this paper develops a complete equivalent circuit model considering the asymmetry to predict thrust, vertical and transversal forces. First, this paper pr... Read More about A Complete Equivalent Circuit Model for Linear Induction Motor Considering Thrust, Vertical and Transversal Forces.

Investigation of Prediction Models for Forces Calculation in Linear Induction Motor with Data-Based System Identification Algorithms (2019)
Presentation / Conference Contribution
Lv, G., Zeng, D., Zhou, T., & Degano, M. (2019, May). Investigation of Prediction Models for Forces Calculation in Linear Induction Motor with Data-Based System Identification Algorithms. Presented at 2019 IEEE International Electric Machines & Drives Conference (IEMDC), San Diego, CA, USA

This paper investigates the prediction models of the thrust, vertical and transversal forces in the linear induction motors (LIMs) with the laterally asymmetric secondary. The models aim at presenting an analytical process for obtaining dynamic estim... Read More about Investigation of Prediction Models for Forces Calculation in Linear Induction Motor with Data-Based System Identification Algorithms.

Air-Cooling of a Hollow High-Speed Permanent Magnet Rotor (2019)
Presentation / Conference Contribution
Connor, P. H., La Rocca, A., Xu, Z., Degano, M., Eastwick, C. N., Pickering, S. J., & Gerada, C. (2019, May). Air-Cooling of a Hollow High-Speed Permanent Magnet Rotor. Presented at 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019, San Diego, USA

This paper presents a computational fluid dynamics conjugate heat transfer analysis of internal and external cooling paths for a hollow high-speed permanent magnet rotor. Extracting magnet losses from high-speed permanent magnet rotors is challenging... Read More about Air-Cooling of a Hollow High-Speed Permanent Magnet Rotor.

Study of Regenerative Braking Effects in a Small Electric Race Car using Energetic Macroscopic Representation (2019)
Presentation / Conference Contribution
Transi, T., Pereirinha, P. G., Bouscayrol, A., & Degano, M. (2019, May). Study of Regenerative Braking Effects in a Small Electric Race Car using Energetic Macroscopic Representation. Presented at 2019 International Young Engineers Forum, YEF-ECE 2019, Costa da Caparica, Portugal

The objective of this work is the modelization of an electric Formula Student car through Energetic Macroscopic Representation (EMR) graphical formalism and to study the effect of regenerative braking. EMR is used to easily define a control design an... Read More about Study of Regenerative Braking Effects in a Small Electric Race Car using Energetic Macroscopic Representation.

Post -Fault Compensation Control Strategy for Multi-Three-Phase PMSM under Open-Circuit and Short-Circuit Condition (2019)
Presentation / Conference Contribution
Rahman, A. A., Galassini, A., Degano, M., Abbas, H., & Bozhko, S. (2019, April). Post -Fault Compensation Control Strategy for Multi-Three-Phase PMSM under Open-Circuit and Short-Circuit Condition. Presented at 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Athens, Greece

This paper presents two post-fault compensation strategies for the distributed current control of a nine-phase Permanent-Magnet Synchronous Machine (PMSM). The dynamic performance in faulty condition is guaranteed by keeping the current loop bandwidt... Read More about Post -Fault Compensation Control Strategy for Multi-Three-Phase PMSM under Open-Circuit and Short-Circuit Condition.

Asymmetrical Flux Density Distribution in Stator Teeth of Surface Permanent Magnet Machines (2019)
Presentation / Conference Contribution
Sala, G., De Gaetano, D., Degano, M., & Gerada, C. (2019, April). Asymmetrical Flux Density Distribution in Stator Teeth of Surface Permanent Magnet Machines. Presented at IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD 2019), Athens, Greece

This work is showing in detail the flux density behaviour in the stator teeth of a synchronous machine. A 3-phase Surface Permanent Magnet (SPM) motor is considered. These motors are widely employed in applications where high efficiency and power den... Read More about Asymmetrical Flux Density Distribution in Stator Teeth of Surface Permanent Magnet Machines.

Synchronous Reluctance Motor Iron Losses: Analytical Model and Optimization (2018)
Presentation / Conference Contribution
Mahmoud, H., Degano, M., Bacco, G., Bianchi, N., & Gerada, C. (2018, September). Synchronous Reluctance Motor Iron Losses: Analytical Model and Optimization. Presented at 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, Oregon, USA

The complex rotor structure of synchronous reluctance machines causes a high harmonic content in the air-gap flux density and then flux density fluctuations in different iron parts. The importance of determining accurately the total iron losses in th... Read More about Synchronous Reluctance Motor Iron Losses: Analytical Model and Optimization.

Design of PMSM for EMA Employed in Secondary Flight Control Systems (2018)
Presentation / Conference Contribution
Giangrande, P., Al-Timimy, A., Galassini, A., Papadopoulos, S., Degano, M., & Galea, M. (2018, November). Design of PMSM for EMA Employed in Secondary Flight Control Systems. Presented at 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC), Nottingham, UK

© 2018 IEEE. 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 actuat... Read More about Design of PMSM for EMA Employed in Secondary Flight Control Systems.

The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft (2018)
Presentation / Conference Contribution
Golovanov, D., Xu, Z., Gerada, D., Degano, M., Vakil, G., & Gerada, C. (2018, October). The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft. Presented at 2018 21st International Conference on Electrical Machines and Systems (ICEMS), Jeju, South Korea

Maximizing the power density as well as efficiency are two of the main critical aspects for engineers who are designing electrical machines for aerospace applications. Iron losses have a significant impact on the total machine efficiency, thermal sta... Read More about The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft.

Multi-port power conversion systems for the more electric aircraft (2018)
Presentation / Conference Contribution
Gu, C., Zhang, H., Buticchi, G., Sala, G., Galassini, A., Papadopoulos, S., & Degano, M. (2018, October). Multi-port power conversion systems for the more electric aircraft. Presented at IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, Washington, DC, USA

In the framework of the More Electric Aircraft (MEA), weight reduction and energy efficiency constitute the key figures. In addition to these requirements, the safety and the continuity of operation is of critical importance. These sets of desired fe... Read More about Multi-port power conversion systems for the more electric aircraft.

A Novel Newton-Raphson-Based Searching Method for the MTPA Control of Pmasynrm Considering Magnetic and Cross Saturation (2018)
Presentation / Conference Contribution
Wang, S., Degano, M., Kang, J., Galassini, A., & Gerada, C. (2018, September). A Novel Newton-Raphson-Based Searching Method for the MTPA Control of Pmasynrm Considering Magnetic and Cross Saturation. Presented at 2018 XIII International Conference on Electrical Machines (ICEM), Alexandroupoli, Greece

Maximum torque per ampere control (MTPA) takes full advantage of the reluctance torque aiming at the minimum copper loss, which can increase the torque output under the minimum current conditions. The traditional MTPA method makes use of equations wi... Read More about A Novel Newton-Raphson-Based Searching Method for the MTPA Control of Pmasynrm Considering Magnetic and Cross Saturation.

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.

The impact of impulsive voltage waveforms on the electrical insulation of actuators for more electrical aircraft (MEA) (2017)
Presentation / Conference Contribution
Cavallini, A., Lusaurdi, L., & Degano, M. The impact of impulsive voltage waveforms on the electrical insulation of actuators for more electrical aircraft (MEA). Presented at 43rd Annual Conference of the IEEE Industrial Electronics Society (IECON 2017)

To reduce the size and weight of aircraft actuators, wide band-gap semiconductor devices (SiC and GaN) are the most promising solution. These devices have switching times well below those of silicon devices. Very short rise times may enhance the elec... Read More about The impact of impulsive voltage waveforms on the electrical insulation of actuators for more electrical aircraft (MEA).

A system level comparison of drive topologies for high speed electrical machines (2017)
Presentation / Conference Contribution
Savi, F., Barater, D., Di Nardo, M., Degano, M., & Gerada, C. A system level comparison of drive topologies for high speed electrical machines. Presented at 43rd Annual Conference of the IEEE Industrial Electronics Society (IECON 2017)

This paper presents a comprehensive comparative study among five different converter topologies all designed to drive a 8.5kW-120krpm surface permanent magnet synchronous machine. The study aims at comparing the considered systems in terms of convert... Read More about A system level comparison of drive topologies for high speed electrical machines.

Axial eccentric SynRel and SPM motors analytical models validation using 3D finite element (2017)
Presentation / Conference Contribution
Mahmoud, H., Al-Timimy, A., Degano, M., Di Nardo, M., Bianchi, N., & Gerada, C. (2017, August). Axial eccentric SynRel and SPM motors analytical models validation using 3D finite element. Presented at SDEMPED 2017 - IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, Tinos, Greece

This paper deals with the uniform and non-uniform axial eccentricity analyses of the surface mounted permanent magnet and synchronous reluctance machines. The analyses are carried out using an analytical model for each considered machine. Being the a... Read More about Axial eccentric SynRel and SPM motors analytical models validation using 3D finite element.

Holistic electrical machine optimization for system integration (2017)
Presentation / Conference Contribution
Gerada, D., Golovanov, D., Xu, Z., Papini, L., Degano, M., Zhang, H., & Gerada, C. (2017, June). Holistic electrical machine optimization for system integration. Presented at 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC - ECCE Asia) 2017, Kaohsiung, Taiwan

The power density of electrical machines required for transport applications has become a critical aspect and target of optimization. This paper looks at the development aspects of a multi-domain tool to aid for system-level optimization of electrica... Read More about Holistic electrical machine optimization for system integration.

Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators (2017)
Presentation / Conference Contribution
Wang, Y., Vakil, G., Nuzzo, S., Degano, M., Galea, M., Gerada, C., Zhang, H., & Brown, N. (2017, April). Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators. Presented at IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) 2017, Nottingham, UK

Objective of this paper is to provide design recommendations to improve the performance and power density of a 400kVA salient-pole synchronous generator, without exceeding the limitations due to critical parameters such as total harmonic distortion o... Read More about Sensitivity analysis for performance and power density improvements in salient-pole synchronous generators.

Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications (2017)
Presentation / Conference Contribution
Al-Timimy, A., Giangrande, P., Degano, M., Galea, M., & Gerada, C. (2017, April). Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications. Presented at 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Nottingham, United Kingdom

This paper investigates the capability of both permanent magnet synchronous machine (PMSM) and permanent magnet flux switching (PMFS) machine to provide high torque to inertia ratio for applications with demanding response in terms of acceleration an... Read More about Comparative study of permanent magnet-synchronous and permanent magnet-flux switching machines for high torque to inertia applications.

Comparison of flux observers for sensorless control of permanent magnet assisted SynRel motors (2016)
Presentation / Conference Contribution
Concari, L., Toscani, A., Barater, D., Concari, C., Degano, M., & Pellegrino, G. (2016, October). Comparison of flux observers for sensorless control of permanent magnet assisted SynRel motors. Presented at IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, Florence, Italy

This paper proposes the comparison among different sensorless position estimation strategies suitable for permanent magnet assisted synchronous reluctance machine drives. A machine of such type was designed and optimized aiming at improving its senso... Read More about Comparison of flux observers for sensorless control of permanent magnet assisted SynRel motors.