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System Level Reliability Assessment of Short Duty Electric Drives for Aerospace (2021)
Journal Article
Madonna, V., Giangrande, P., Harikumaran, J., Buticchi, G., & Galea, M. (2021). System Level Reliability Assessment of Short Duty Electric Drives for Aerospace. IEEE Transactions on Transportation Electrification, 7(3), 1888 - 1900. https://doi.org/10.1109/tte.2021.3053147

The reliability performance of electrical machines and power electronics converters are generally verified separately, even if the two components are meant to be part of the same electric drive. Depending on the application, however, it might be nece... Read More about System Level Reliability Assessment of Short Duty Electric Drives for Aerospace.

Lifetime Estimation of Enameled Wires Under Accelerated Thermal Aging Using Curve Fitting Methods (2021)
Journal Article
Khowja, M. R., Turabee, G., Giangrande, P., Madonna, V., Cosma, G., Vakil, G., …Galea, M. (2021). Lifetime Estimation of Enameled Wires Under Accelerated Thermal Aging Using Curve Fitting Methods. IEEE Access, 9, 18993-19003. https://doi.org/10.1109/access.2021.3052058

Estimating the lifetime of enameled wires using the conventional/standard test method requires a significant amount of time that can endure up to thousands of testing hours, which could considerably delay the time-to-market of a new product. This pap... Read More about Lifetime Estimation of Enameled Wires Under Accelerated Thermal Aging Using Curve Fitting Methods.

Failure modes and reliability oriented system design for aerospace power electronic converters (2020)
Journal Article
Harikumaran, J., Migliazza, G., Buticchi, G., Madonna, V., Giangrande, P., Costabeber, A., …Galea, M. (2021). Failure modes and reliability oriented system design for aerospace power electronic converters. IEEE Open Journal of the Industrial Electronics Society, 2, 53-64. https://doi.org/10.1109/OJIES.2020.3047201

Aircraft electrification has been a major trend in aviation industry for past 20 years. Given the increasing electrical power requirement for future more electric aircraft and hybrid electric aircraft, research efforts has been ongoing in high power... Read More about Failure modes and reliability oriented system design for aerospace power electronic converters.

Development and Testing of Soft Magnetic Rotor for a Switched Reluctance Motor Built Through Additive Manufacturing Technology (2020)
Conference Proceeding
Gargalis, L., Madonna, V., Giangrande, P., Rocca, R., Ashcroft, I., Hague, R., & Galea, M. (2020). Development and Testing of Soft Magnetic Rotor for a Switched Reluctance Motor Built Through Additive Manufacturing Technology. In 2020 23rd International Conference on Electrical Machines and Systems (ICEMS) (263-268). https://doi.org/10.23919/icems50442.2020.9290893

Additive manufacturing, commonly known as 3D printing, is an emerging technology that is gaining considerable research interest in recent years. In particular, metal printing methodologies might be successfully employed in developing lightweight and... Read More about Development and Testing of Soft Magnetic Rotor for a Switched Reluctance Motor Built Through Additive Manufacturing Technology.

Electrical Machines for the More Electric Aircraft: Partial Discharges Investigation (2020)
Journal Article
Madonna, V., Giangrande, P., Zhao, W., Zhang, H., Gerada, C., & Galea, M. (2021). Electrical Machines for the More Electric Aircraft: Partial Discharges Investigation. IEEE Transactions on Industry Applications, 57(2), 1389-1398. https://doi.org/10.1109/TIA.2020.3046434

Modern electrical machines employed in transportation applications are required to provide high performance in terms of power (and torque) density. At the same time, being these applications safety-critical, a significant level of reliability and/or... Read More about Electrical Machines for the More Electric Aircraft: Partial Discharges Investigation.

On the Capability of Heat Dissipation in Thermally Aged Electrical Machines (2020)
Conference Proceeding
Madonna, V., Giangrande, P., & Galea, M. (2020). On the Capability of Heat Dissipation in Thermally Aged Electrical Machines. In 2020 International Conference on Electrical Machines (ICEM) (954-960). https://doi.org/10.1109/icem49940.2020.9270744

Thermal aging is one of the main causes of progressive deterioration of the insulation system in electrical machines. This because the thermo-physical properties of dielectric materials can undergo severe changes when exposed to high temperature. Acc... Read More about On the Capability of Heat Dissipation in Thermally Aged Electrical Machines.

3D Printing as a Technology Enabler for Electrical Machines: Manufacturing and Testing of a Salient Pole Rotor for SRM (2020)
Conference Proceeding
Gargalis, L., Madonna, V., Giangrande, P., Hardy, M., Ashcroft, I., Galea, M., & Hague, R. (2020). 3D Printing as a Technology Enabler for Electrical Machines: Manufacturing and Testing of a Salient Pole Rotor for SRM. In 2020 International Conference on Electrical Machines (ICEM) (12-18). https://doi.org/10.1109/icem49940.2020.9270737

Among the various technology enablers for modern electrical machines, additive manufacturing plays a key role. The advantage of having a precise control of the shape of ferromagnetic structures, whilst achieving good electromagnetic performance, fits... Read More about 3D Printing as a Technology Enabler for Electrical Machines: Manufacturing and Testing of a Salient Pole Rotor for SRM.

Influence of Thermal Aging on the Winding Thermal Conductivity in Low Voltage Electrical Machines (2020)
Conference Proceeding
Madonna, V., Giangrande, P., & Galea, M. (2020). Influence of Thermal Aging on the Winding Thermal Conductivity in Low Voltage Electrical Machines. . https://doi.org/10.23919/icems50442.2020.9291167

It is widely acknowledged that thermal aging can have a detrimental effect on the reliability and lifetime expectancy of electrical machines. Long exposure times to high temperature can deteriorate the dielectric properties of the electrical insulati... Read More about Influence of Thermal Aging on the Winding Thermal Conductivity in Low Voltage Electrical Machines.

Additive Manufacturing and Testing of a Soft Magnetic Rotor for a Switched Reluctance Motor (2020)
Journal Article
Gargalis, L., Madonna, V., Giangrande, P., Rocca, R., Hardy, M., Ashcroft, I., …Hague, R. (2020). Additive Manufacturing and Testing of a Soft Magnetic Rotor for a Switched Reluctance Motor. IEEE Access, 8, 206982-206991. https://doi.org/10.1109/ACCESS.2020.3037190

Additive manufacturing is acknowledged as a key enabling technology, although its adoption is still constrained to niche applications. A promising area for this technology is the production of electrical machines (EMs) and/or their main components (e... Read More about Additive Manufacturing and Testing of a Soft Magnetic Rotor for a Switched Reluctance Motor.

Weibull Distribution and Geometrical Size Factor for Evaluating the Thermal Life of Electrical Machines' Insulation (2020)
Conference Proceeding
Madonna, V., Giangrande, P., & Galea, M. (2020). Weibull Distribution and Geometrical Size Factor for Evaluating the Thermal Life of Electrical Machines' Insulation. In IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society (1114-1119). https://doi.org/10.1109/IECON43393.2020.9255227

© 2020 IEEE. The thermal lifetime assessment of electrical machines' insulation systems is generally performed at the design and prototyping stages. Hence, the insulation system's thermal endurance curve (or temperature index) can be extrapolated, al... Read More about Weibull Distribution and Geometrical Size Factor for Evaluating the Thermal Life of Electrical Machines' Insulation.

DC Current Control for a Single-Stage Current Source Inverter in Motor Drive Application (2020)
Journal Article
Migliazza, G., Buticchi, G., Carfagna, E., Lorenzani, E., Madonna, V., Giangrande, P., & Galea, M. (2021). DC Current Control for a Single-Stage Current Source Inverter in Motor Drive Application. IEEE Transactions on Power Electronics, 36(3), 3367-3376. https://doi.org/10.1109/tpel.2020.3013301

The current source inverter (CSI) is a power electronics topology that allows for the realization of variable speed drives (VSD). Compared to the most common voltage source inverter (VSI), which can be directly connected to a voltage source, the CSI... Read More about DC Current Control for a Single-Stage Current Source Inverter in Motor Drive Application.

Predicting Insulation Resistance of Enamelled Wire using Neural Network and Curve Fit Methods Under Thermal Aging (2020)
Conference Proceeding
Turabee, G., Cosma, G., Madonna, V., Giangrande, P., Khowja, M. R., Vakil, G., …Galea, M. (2020). Predicting Insulation Resistance of Enamelled Wire using Neural Network and Curve Fit Methods Under Thermal Aging. In 2020 International Joint Conference onNeural Networks (IJCNN): 2020 conference proceedings (1-7). https://doi.org/10.1109/IJCNN48605.2020.9207378

© 2020 IEEE. Health monitoring has gained a massive interest in power systems engineering, as it has the advantage to reduce operating costs, improve reliability of power supply and provide a better service to customers. This paper presents surrogate... Read More about Predicting Insulation Resistance of Enamelled Wire using Neural Network and Curve Fit Methods Under Thermal Aging.

RexMoto-A Range Extender Concept for Light Electric Aircraft (2020)
Conference Proceeding
Glassock, R., Madonna, V., Giangrande, P., & Galea, M. (2020). RexMoto-A Range Extender Concept for Light Electric Aircraft. In 2020 IEEE Transportation Electrification Conference & Expo (ITEC) (930-935). https://doi.org/10.1109/ITEC48692.2020.9161496

© 2020 IEEE. A main limitation of fully electric vehicles is their maximum range, which is principally constrained by the performance (i.e. energy density) of energy storage systems. A range extender, coupled to an electric vehicle, is a system able... Read More about RexMoto-A Range Extender Concept for Light Electric Aircraft.

Thermal Lifetime Evaluation of Electrical Machines Using Neural Network (2020)
Conference Proceeding
Turabee, G., Khowja, M. R., Madonna, V., Giangrande, P., Vakil, G., Gerada, C., & Galea, M. (2020). Thermal Lifetime Evaluation of Electrical Machines Using Neural Network. In 2020 IEEE Transportation Electrification Conference & Expo (ITEC) (1153-1158). https://doi.org/10.1109/ITEC48692.2020.9161662

© 2020 IEEE. This paper proposes a surrogate approach which utilises an supervised neural network to significantly shorten the time required for thermal qualification of electrical machines' insulation. The proposed approach is based on a feedforward... Read More about Thermal Lifetime Evaluation of Electrical Machines Using Neural Network.

Unconventional accelerated thermal ageing test for traction electric motors in vehicles (2020)
Conference Proceeding
Lusuardi, L., Cavallini, A., Madonna, V., Giangrande, P., & Galea, M. (2020). Unconventional accelerated thermal ageing test for traction electric motors in vehicles. In Proceedings of the 2020 IEEE Electrical Insulation Conference (EIC) (212-216). https://doi.org/10.1109/EIC47619.2020.9158744

© 2020 IEEE. Car manufacturers are increasingly working to make the all-electric car a reliable and affordable mobility option for a larger section of the population. However, several issues need to be addressed before achieving this goal. One of the... Read More about Unconventional accelerated thermal ageing test for traction electric motors in vehicles.

Reliability oriented design of low voltage electrical machines based on accelerated thermal aging tests (2020)
Conference Proceeding
Giangrande, P., Madonna, V., & Galea, M. (2020). Reliability oriented design of low voltage electrical machines based on accelerated thermal aging tests. In SPEEDAM 2020 – Proceedings: International Symposium on Power Electronics, Electrical Drives and Motion: virtual meeting. https://doi.org/10.1109/SPEEDAM48782.2020.9161974

© 2020 IEEE. In transport applications, electrical machines (EMs) are required to be highly reliable, in order to fulfill the intended mission profile over the expected lifetime. This task has been conventionally addressed through the adoption of saf... Read More about Reliability oriented design of low voltage electrical machines based on accelerated thermal aging tests.

Improving Performance and Extending Lifetime of PMSMs via Advanced End-Winding Cooling (2020)
Conference Proceeding
Madonna, V., Spagnolo, C., Giangrande, P., & Galea, M. (2020). Improving Performance and Extending Lifetime of PMSMs via Advanced End-Winding Cooling. In 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE). https://doi.org/10.1109/isie45063.2020.9152243

© 2020 IEEE. In the automotive field, high performance and high reliable electrical machines are required and an appropriate thermal management allows to fulfil such a demand. Thermal management is also crucial for enhancing the power density, while... Read More about Improving Performance and Extending Lifetime of PMSMs via Advanced End-Winding Cooling.

Influence of Insulation Thermal Aging on the Temperature Assessment in Electrical Machines (2020)
Journal Article
Madonna, V., Giangrande, P., & Galea, M. (2021). Influence of Insulation Thermal Aging on the Temperature Assessment in Electrical Machines. IEEE Transactions on Energy Conversion, 36(1), 456-467. https://doi.org/10.1109/tec.2020.3001053

Thermal modeling and temperature assessment of electrical machines often rely on the use of lumped-parameter thermal networks. A historic limitation of analytical thermal models is their need for an experimental fine-tuning, necessary for selecting t... Read More about Influence of Insulation Thermal Aging on the Temperature Assessment in Electrical Machines.

Reliability-Oriented Design of Electrical Machines: The Design Process for Machines' Insulation Systems MUST Evolve (2020)
Journal Article
Galea, M., Giangrande, P., Madonna, V., & Buticchi, G. (2020). Reliability-Oriented Design of Electrical Machines: The Design Process for Machines' Insulation Systems MUST Evolve. IEEE Industrial Electronics Magazine, 14(1), 20-28. https://doi.org/10.1109/MIE.2019.2947688

As the world of transportation keeps moving toward greater electrification, the main design objectives in terms of power density and efficiency of system components are becoming increasingly important. Meanwhile, transportation applications are also... Read More about Reliability-Oriented Design of Electrical Machines: The Design Process for Machines' Insulation Systems MUST Evolve.

Thermal Model Approach to Multisector Three-Phase Electrical Machines (2020)
Journal Article
Zhang, H., Giangrande, P., Sala, G., Xu, Z., Hua, W., Madonna, V., …Gerada, C. (2021). Thermal Model Approach to Multisector Three-Phase Electrical Machines. IEEE Transactions on Industrial Electronics, 68(4), 2919-2930. https://doi.org/10.1109/TIE.2020.2977559

© 1982-2012 IEEE. Multisector machines reveal a high fault-tolerant capability, since failure events can be isolated by de-energizing the faulty sector, while the healthy ones contribute in delivering the required power. This article is focused on th... Read More about Thermal Model Approach to Multisector Three-Phase Electrical Machines.