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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.

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.

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.

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.

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.

The Role of Neural Networks in Predicting the Thermal Life of Electrical Machines (2020)
Journal Article
Turabee, G., Khowja, M. R., Giangrande, P., Madonna, V., Cosma, G., Vakil, G., …Galea, M. (2020). The Role of Neural Networks in Predicting the Thermal Life of Electrical Machines. IEEE Access, 8, 40283-40297. https://doi.org/10.1109/ACCESS.2020.2975985

© 2013 IEEE. For a continuous mode of operation, insulating material in an electrical machine is subject to constant thermal, electrical, mechanical and environmental stresses where thermal stress is a major cause of gradual insulation deterioration,... Read More about The Role of Neural Networks in Predicting the Thermal Life of Electrical Machines.

Moving Toward a Reliability-Oriented Design Approach of Low-Voltage Electrical Machines by Including Insulation Thermal Aging Considerations (2020)
Journal Article
Giangrande, P., Madonna, V., Nuzzo, S., & Galea, M. (2020). Moving Toward a Reliability-Oriented Design Approach of Low-Voltage Electrical Machines by Including Insulation Thermal Aging Considerations. IEEE Transactions on Transportation Electrification, 6(1), 16-27. https://doi.org/10.1109/TTE.2020.2971191

© 2020 IEEE. Electrical machines (EMs) are required to consistently perform their intended mission over a specified timeframe. The move toward transportation electrification made the EMs' reliability an even stringent and predominant requirement, sin... Read More about Moving Toward a Reliability-Oriented Design Approach of Low-Voltage Electrical Machines by Including Insulation Thermal Aging Considerations.

The Rebirth of the Current Source Inverter: Advantages for Aerospace Motor Design (2019)
Journal Article
Madonna, V., Migliazza, G., Giangrande, P., Lorenzani, E., Buticchi, G., & Galea, M. (2019). The Rebirth of the Current Source Inverter: Advantages for Aerospace Motor Design. IEEE Industrial Electronics Magazine, 13(4), 65-76. https://doi.org/10.1109/MIE.2019.2936319

© 2007-2011 IEEE. It is well known and widely accepted that the voltage source inverter (VSI) now dominates the world of electrical drives. Its success is probably due to its simplicity, high efficiency, and the widespread availability of VSs. This p... Read More about The Rebirth of the Current Source Inverter: Advantages for Aerospace Motor Design.

A Time-Saving Approach for the Thermal Lifetime Evaluation of Low Voltage Electrical Machines (2019)
Journal Article
Madonna, V., Giangrande, P., Migliazza, G., Buticchi, G., & Galea, M. (2020). A Time-Saving Approach for the Thermal Lifetime Evaluation of Low Voltage Electrical Machines. IEEE Transactions on Industrial Electronics, 67(11), 9195 -9205. https://doi.org/10.1109/tie.2019.2956378

Modern electrical machines, such as those employed in transportation applications are required to provide very high performance in terms of power (and torque) density and efficiency. The reality, however, is that the more these machines are “pushed“... Read More about A Time-Saving Approach for the Thermal Lifetime Evaluation of Low Voltage Electrical Machines.

Evaluation of strand-to-strand capacitance and dissipation factor in thermally aged enamelled coils for low-voltage electrical machines (2019)
Journal Article
Madonna, V., Giangrande, P., & Galea, M. (2019). Evaluation of strand-to-strand capacitance and dissipation factor in thermally aged enamelled coils for low-voltage electrical machines. IET Science Measurement and Technology, 13(8), 1170-1177. https://doi.org/10.1049/iet-smt.2019.0071

© The Institution of Engineering and Technology 2019. The dissipation factor (i.e. tanδ) and insulation capacitance (IC) measurements are conventional monitoring methods for assessing the aging level of insulation systems. These quantities provide an... Read More about Evaluation of strand-to-strand capacitance and dissipation factor in thermally aged enamelled coils for low-voltage electrical machines.

Thermal overload and insulation aging of short duty cycle, aerospace motors (2019)
Journal Article
Madonna, V., Giangrande, P., Lusuardi, L., Cavallini, A., Gerada, C., & Galea, M. (2019). Thermal overload and insulation aging of short duty cycle, aerospace motors. IEEE Transactions on Industrial Electronics, 67(4), 2618-2629. https://doi.org/10.1109/tie.2019.2914630

Electrical machines for transportation applications need to be highly reliable, particularly if they drive safety-critical systems. At the same time, another main requirement is represented by the significant torque density, especially for aerospace,... Read More about Thermal overload and insulation aging of short duty cycle, aerospace motors.

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.

Electrical power generation in aircraft: review, challenges and opportunities (2018)
Journal Article
Madonna, V., Giangrande, P., & Galea, M. (2018). Electrical power generation in aircraft: review, challenges and opportunities. IEEE Transactions on Transportation Electrification, 4(3), 646-659. https://doi.org/10.1109/TTE.2018.2834142

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 about Electrical power generation in aircraft: review, challenges and opportunities.

Thermal analysis of fault-tolerant electrical machines for more electric aircraft applications (2018)
Journal Article
Madonna, V., Giangrande, P., Gerada, C., & Galea, M. (2018). Thermal analysis of fault-tolerant electrical machines for more electric aircraft applications. Journal of Engineering, 2018(13), 461-467. https://doi.org/10.1049/joe.2018.0040

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 adopted, fault-tolerant machines can opera... Read More about Thermal analysis of fault-tolerant electrical machines for more electric aircraft applications.