Dr Panagiotis Panagiotou

PhD, MSc, MEng, BEng

School of Electrical and Electronic Engineering

Lecturer Electrical Machines and Drives

MIET, MIEEE

p.panagiotou@sheffield.ac.uk

Sir Frederick Mappin Building

Full contact details

Dr Panagiotis Panagiotou
School of Electrical and Electronic Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD

Profile

I received the 5-year Diploma (BEng & MEng) in Electrical & Computer Engineering from the University of Patras, Greece, in 2015, specialising in electrical power systems, electromechanical energy conversion, and electrical machines. I received the MSc degree in complex systems and network theory from the Aristotle University of Thessaloniki, Department of Mathematics, in 2017, and the PhD degree in condition monitoring and fault diagnostics of electrical machines from Coventry University, UK, in 2020.

In February 2021, I joined the Electronic & Electrical Engineering Department of the University of Sheffield as a post-doctoral research associate in electrical machines at the Rolls-Royce University Technology Centre in Advanced Electrical Machines.

Since January 2022, I have been a lecturer in electrical machines with the EMD group of the EEE Department of the University of Sheffield.

My current research interests include condition monitoring, fault finding and diagnostics of electrical machines, digital signal processing for diagnostic purposes, as well as new technologies for the inspection, testing, and repair of electrical machines.

Qualifications

PhD, Coventry University, UK, 2020
MSc, Aristotle University of Thessaloniki, Greece, 2017
BEng & MEng, University of Patras, Greece, 2015

Research interests

Condition monitoring & fault diagnostics of electrical machines
Digital signal processing for industrial diagnostics
New technologies for the inspection, testing & repair of electrical machines
Powertrains for electrified transportation

Publications

Journal articles

Spyropoulos DV, Panagiotou PA, Arvanitakis I, Mitronikas E & Gyftakis KN (2021) Extraction of frequency information for the reliable screening of rotor electrical faults via torque monitoring in induction motors. IEEE Transactions on Industry Applications, 57(6), 5949-5958. View this article in WRRO
Koumpis NP, Panagiotou PA & Arvanitakis I (2021) A critical comparison on attitude estimation: from gaussian approximate filters to coordinate-free dual optimal control. IET Control Theory and Applications, 15(10), 1297-1313. View this article in WRRO
Gyftakis KN, Panagiotou PA & Spyrakis D (2021) Detection of simultaneous mechanical faults in 6‐kV pumping induction motors using combined MCSA and stray flux methods. IET Electric Power Applications, 15(5), 643-652.
Gyftakis KN, Panagiotou PA & Lee SB (2020) Generation of Mechanical Frequency Related Harmonics in the Stray Flux Spectra of Induction Motors Suffering From Rotor Electrical Faults. IEEE Transactions on Industry Applications, 56(5), 4796-4803.
Platero CA, Gyftakis KN, Panagiotou PA & Fernandez A (2020) Scheme for synchronous machine stator turn‐to‐turn protection. IET Electric Power Applications, 14(4), 716-722.
Panagiotou PA, Arvanitakis I, Lophitis N, Antonino‐Daviu JA & Gyftakis KN (2019) On the broken rotor bar diagnosis using time–frequency analysis: ‘Is one spectral representation enough for the characterisation of monitored signals?’. IET Electric Power Applications, 13(7), 932-942.
Panagiotou PA, Arvanitakis I, Lophitis N, Antonino‐Daviu JA & Gyftakis KN (2019) FEM approach for diagnosis of induction machines' non‐adjacent broken rotor bars by short‐time Fourier transform spectrogram. The Journal of Engineering, 2019(17), 4566-4570.
Garcia M, Panagiotou PA, Antonino-Daviu JA & Gyftakis KN (2019) Efficiency Assessment of Induction Motors Operating Under Different Faulty Conditions. IEEE Transactions on Industrial Electronics, 66(10), 8072-8081.
Park Y, Yang C, Kim J, Kim H, Lee SB, Gyftakis KN, Panagiotou PA, Kia SH & Capolino G-A (2019) Stray Flux Monitoring for Reliable Detection of Rotor Faults Under the Influence of Rotor Axial Air Ducts. IEEE Transactions on Industrial Electronics, 66(10), 7561-7570.

Conference proceedings papers

Masoud MI, Skarmoutsos G, Mu W, Song Z, Gyftakis KN & Panagiotou PA (2024) Effects of the Inter-Turn Short-Circuit Fault in the Stator Winding of a 5-Phase Induction Motor. 2024 International Conference on Electrical Machines (ICEM) (pp 1-8), 1 September 2024 - 4 September 2024.
Song Z, Panagiotou PA, Mayo-Maldonado JC, Arvanitakis I, Antonino-Daviu JA & Gyftakis KN (2024) Isolation of Induction Motor Rotor Fault Signatures by Stray Magnetic Flux and Torque Monitoring. 2024 International Conference on Electrical Machines (ICEM) (pp 1-8), 1 September 2024 - 4 September 2024.
Salinas M, Trachalakis N, Panagiotou PA & Gyftakis KN (2024) Reliable Detection of Non-Adjacent Broken Rotor Bars via the Analysis of the Zero-Sequence Flux. 2024 International Conference on Electrical Machines (ICEM) (pp 1-6), 1 September 2024 - 4 September 2024.
Stone EJW, Panagiotou PA, Mühlthaler J, Mills AR, Lambourne A & Jewell GW (2024) Modelling of Insulation in Concentrated Stator Coils for Characterisation and Material Changes. 2024 International Conference on Electrical Machines (ICEM) (pp 01-08), 1 September 2024 - 4 September 2024.
Stone EJW, Panagiotou PA, Mühlthaler J, Mills AR, Lambourne A & Jewell GW (2024) Identification of Thermal Failure Profiles in Stator Winding Insulation by Impedance Spectroscopy. 2024 International Conference on Electrical Machines (ICEM), Vol. 21 (pp 1-7), 1 September 2024 - 4 September 2024.
O’Keeffe H, Masoud M, Panagiotou P, Toqeer R, Griffo A & Lazari P (2024) A versatile and low-cost approach to power electronics practical training. 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024) (pp 653-658)
Wray T, Panagiotou P, Masoud M, O’Keeffe H, Toqeer R, Griffo A & Lazari P (2024) A compact and modular remote access platform for enhanced practical education in power electronics, machines, and drives. 13th International Conference on Power Electronics, Machines and Drives (PEMD 2024) (pp 646-652)
Mayo-Maldonado JC, Panagiotou PA, Masoud MI, Lambourne A, Valdez-Resendiz JE & Rosas-Caro JC (2023) Transformerless Wind Energy System Based on a Series Double NPC Multilevel Rectifier and a Six-Phase Asymmetrical PMSG. 2023 IEEE 14th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 28 August 2023 - 31 August 2023.
Panagiotou PA, Stone EJW, Mühlthaler J, Reeh A, Lambourne A & Jewell GW (2023) Thermal Degradation Profile of Concentrated Stator Winding Insulation by Impedance Spectroscopy. 2023 IEEE 14th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 28 August 2023 - 31 August 2023.
Mühlthaler J, Panagiotou PA, Lehner B, Reeh A, Herzog H-G & Gyftakis KN (2023) Search Coil Based Detection of the Inter-Turn Short Circuits in Aircraft Permanent Magnet Synchronous Machine by Signal Frequency Extraction. 2023 IEEE 14th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 28 August 2023 - 31 August 2023.
Panagiotou PA, Mayo-Maldonado JC, Arvanitakis I, Escobar G, Antonino-Daviu JA & Gyftakis KN (2023) A Novel Method for Rotor Fault Diagnostics in Induction Motors using Harmonic Isolation. 2023 IEEE 14th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 28 August 2023 - 31 August 2023.
Panagiotou PA, Lambourne A & Jewell GW (2022) Ex-situ Inspection of Concentrated Stator Coils by Means of Impedance Spectroscopy. 2022 International Conference on Electrical Machines (ICEM), 5 September 2022 - 8 September 2022.
Panagiotou PA, Lambourne A & Jewell GW (2022) Survey of Insulation in Electrical Machines for Aerospace: Systems, Materials & Inspection. 2022 International Conference on Electrical Machines (ICEM), 5 September 2022 - 8 September 2022.
Gyftakis KN, Spyropoulos DV, Arvanitakis I, Panagiotou PA & Mitronikas ED (2020) Induction Motors Torque Analysis via Frequency Extraction for Reliable Broken Rotor Bar Detection. 2020 International Conference on Electrical Machines (ICEM), 23 August 2020 - 26 August 2020.
Gyftakis KN, Panagiotou PA, Palomeno E & Lee SB (2019) Introduction of the Zero-Sequence Stray Flux as a Reliable Diagnostic Method of Rotor Electrical Faults in Induction Motors. IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 14 October 2019 - 17 October 2019.
Gyftakis KN, Panagiotou PA & Lee SB (2019) The Role of the Mechanical Speed Frequency on the Induction Motor Fault Detection via the Stray Flux. 2019 IEEE 12th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 27 August 2019 - 30 August 2019.
Gyftakis KN, Panagiotou PA & Spyrakis D (2019) Recent Experiences with MCSA and Flux Condition Monitoring of Mechanical Faults in 6kV Induction Motors for Water Pumping Applications. 2019 IEEE 12th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 27 August 2019 - 30 August 2019.
Panagiotou PA, Arvanitakis I, Lophitis N & Gyftakis KN (2019) Frequency Extraction of Current Signal Spectral Components: A New Tool for the Detection of Rotor Electrical Faults in Induction Motors. 2019 IEEE 12th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 27 August 2019 - 30 August 2019.
Panagiotou PA, Arvanitakis I, Lophitis N, Antonino-Daviu JA & Gyftakis KN (2019) A New Approach for Broken Rotor Bar Detection in Induction Motors Using Frequency Extraction in Stray Flux Signals. IEEE Transactions on Industry Applications, Vol. 55(4) (pp 3501-3511)
Panagiotou PA, Arvanitakis I, Lophitis N & Gyftakis KN (2018) FEM Study of Induction Machines Suffering from Rotor Electrical Faults Using Stray Flux Signature Analysis. 2018 XIII International Conference on Electrical Machines (ICEM), 3 September 2018 - 6 September 2018.
Panagiotou PA, Arvanitakis I, Lophitis N, Antonino-Daviu JA & Gyftakis KN (2018) Analysis of Stray Flux Spectral Components in Induction Machines under Rotor Bar Breakages at Various Locations. 2018 XIII International Conference on Electrical Machines (ICEM), 3 September 2018 - 6 September 2018.
Morinigo-Sotelo D, de J. Romero-Troncoso R, Panagiotou PA, Antonino-Daviu JA & Gyftakis KN (2018) Reliable Detection of Rotor Bars Breakage in Induction Motors via MUSIC and ZSC. IEEE Transactions on Industry Applications, Vol. 54(2) (pp 1224-1234)
Gyftakis KN, Panagiotou PA, Lophitis N, Howey DA & McCulloch MD (2017) Breakdown resistance analysis of traction motor winding insulation under thermal ageing. 2017 IEEE Energy Conversion Congress and Exposition (ECCE), 1 October 2017 - 5 October 2017.
Panagiotou PA, Gyftakis KN, Lophitis N, McCulloch MD & Howey DA (2017) Investigation of traction motor windings' insulation capacitance at switching frequencies under accelerated thermal stress. 2017 IEEE 11th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 29 August 2017 - 1 September 2017.
Gyftakis KN, Panagiotou PA & Kappatou J (2012) The influence of semi-magnetic wedges on the electromagnetic variables and the harmonic content in induction motors. 2012 XXth International Conference on Electrical Machines, 2 September 2012 - 5 September 2012.

Teaching activities

Electrical Energy & Conversion
Machine Design