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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.

On the Thermal Insulation Qualification of Low Voltage Electrical Machines (2019)
Conference Proceeding
Madonna, V., Giangrande, P., Migliazza, G., Buticchi, G., & Galea, M. (2019). On the Thermal Insulation Qualification of Low Voltage Electrical Machines. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (7115-7120). https://doi.org/10.1109/IECON.2019.8927464

Electrical motors are required to perform reliably for a certain number of hours/cycles. Assuming the insulation breakdown as the predominant source of failure, then the lifetime of an electrical machine can generally be said to correspond to that of... Read More about On the Thermal Insulation Qualification of Low Voltage Electrical Machines.

Simplified Lumped Parameter Thermal Network for Short-Duty Dual Three-Phase Permanent Magnet Machines (2019)
Conference Proceeding
Giangrande, P., Madonna, V., Zhao, W., Wang, Y., Gerada, C., & Galea, M. (2019). Simplified Lumped Parameter Thermal Network for Short-Duty Dual Three-Phase Permanent Magnet Machines. In Proceedings of 2019 22nd International Conference on Electrical Machines and Systems (ICEMS) (1-6). https://doi.org/10.1109/ICEMS.2019.8922309

© 2019 IEEE. Electrical machines are progressively being employed in an ever-increasing number of safety-critical applications (e.g. aerospace and automotive), which demand high performance as well as reliability features. The modular structure and t... Read More about Simplified Lumped Parameter Thermal Network for Short-Duty Dual Three-Phase Permanent Magnet Machines.

Insulation Capacitance as Diagnostic Marker for Thermally Aged, Low Voltage Electrical Machines (2019)
Conference Proceeding
Madonna, V., Giangrande, P., Zhao, W., Wang, Y., Zhang, H., & Galea, M. (2019). Insulation Capacitance as Diagnostic Marker for Thermally Aged, Low Voltage Electrical Machines. In Proceedings of 2019 22nd International Conference on Electrical Machines and Systems (ICEMS) (1-5). https://doi.org/10.1109/ICEMS.2019.8921657

© 2019 IEEE. Thermal aging is considered as the principal insulation stress factor in low voltage electrical machines (EMs). Once the insulation reaches its end-of-life, a complete EM out of service can be caused within few operating cycles/hours. In... Read More about Insulation Capacitance as Diagnostic Marker for Thermally Aged, Low Voltage Electrical Machines.

Optimised low voltage loads allocation for MEA electrical power systems (2019)
Conference Proceeding
Spagnolo, C., Madonna, V., Sumsurooah, S., Hill, C. I., & Bozhko, S. (2019). Optimised low voltage loads allocation for MEA electrical power systems. In AIAA/IEEE Electric Aircraft Technologies Symposium (EATS 2019) (1-8). https://doi.org/10.2514/6.2019-4489

This paper proposes a smart controller design for an automated power load allocation for the more electric aircraft application. As the aircraft manufacturers are moving towards more electrified solutions, power management and optimization are becomi... Read More about Optimised low voltage loads allocation for MEA electrical power systems.

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.

On the design of partial discharge-free low voltage electrical machines (2019)
Conference Proceeding
Madonna, V., Giangrande, P., Zhao, W., Zhang, H., Gerada, C., & Galea, M. (2019). On the design of partial discharge-free low voltage electrical machines. In 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (1837-1842). https://doi.org/10.1109/IEMDC.2019.8785413

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 On the design of partial discharge-free low voltage electrical machines.

Introducing physics of failure considerations in the electrical machines design (2019)
Conference Proceeding
Madonna, V., Giangrande, P., & Galea, M. (2019). Introducing physics of failure considerations in the electrical machines design. . https://doi.org/10.1109/IEMDC.2019.8785304

For continuous-duty applications, electric motors are conventionally designed to experience a hot-spot temperature below their insulation thermal class. When frequent overloads are required, a safety temperature-margin is considered at the machine's... Read More about Introducing physics of failure considerations in the electrical machines design.

Braking torque compensation strategy and thermal behavior of a dual three-phase winding PMSM during short-circuit fault (2019)
Conference Proceeding
Giangrande, P., Madonna, V., Nuzzo, S., Gerada, C., & Galea, M. (2019). Braking torque compensation strategy and thermal behavior of a dual three-phase winding PMSM during short-circuit fault. . https://doi.org/10.1109/iemdc.2019.8785164

© 2019 IEEE. Permanent magnet synchronous machines (PMSMs)employing the dual three-phase winding represent a suitable solution for complying with the reliability requirements typically needed in safety-critical applications. Their inherent fault-tole... Read More about Braking torque compensation strategy and thermal behavior of a dual three-phase winding PMSM during short-circuit fault.

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.

Reduced Order Lumped Parameter Thermal Network for Dual Three-Phase Permanent Magnet Machines (2019)
Conference Proceeding
Giangrande, P., Madonna, V., Nuzzo, S., Spagnolo, C., Gerada, C., & Galea, M. (2019). Reduced Order Lumped Parameter Thermal Network for Dual Three-Phase Permanent Magnet Machines. In Proceedings 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (71-76). https://doi.org/10.1109/WEMDCD.2019.8887772

© 2019 IEEE. In recent years, electrical machines are employed in an ever-increasing number of safety-critical applications, which require high power density, along with a demanding level of reliability and/or fault-tolerance capability. Multi-phase... Read More about Reduced Order Lumped Parameter Thermal Network for Dual Three-Phase Permanent Magnet Machines.

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. (2018). Design of Fault-Tolerant Dual Three-Phase Winding PMSM for Helicopter Landing Gear EMA. In 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) (1-6). https://doi.org/10.1109/ESARS-ITEC.2018.8607684

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 about Design of Fault-Tolerant Dual Three-Phase Winding PMSM for Helicopter Landing Gear EMA.

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. (2018). Impact of thermal overload on the insulation aging in short duty cycle motors for aerospace. In 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) (1-6). https://doi.org/10.1109/ESARS-ITEC.2018.8607539

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 about Impact of thermal overload on the insulation aging in short duty cycle motors for aerospace.

On the Effects of Advanced End-Winding Cooling on the Design and Performance of Electrical Machines (2018)
Conference Proceeding
Madonna, V., Giangrande, P., Adam, W., & Galea, M. (2018). On the Effects of Advanced End-Winding Cooling on the Design and Performance of Electrical Machines. https://doi.org/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 the... Read More about On the Effects of Advanced End-Winding Cooling on the Design and Performance of Electrical Machines.

Design and testing of PMSM for aerospace EMA applications (2018)
Conference Proceeding
Giangrande, P., Madonna, V., Sala, G., Kladas, A., Gerada, C., & Galea, M. (2018). Design and testing of PMSM for aerospace EMA applications. In IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society (2038-2043). https://doi.org/10.1109/IECON.2018.8591318

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.

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.