Dr Xiao Chen

PhD, MSc, BEng

School of Electrical and Electronic Engineering

Senior Lecturer in Electrical Machines

xiao.chen@sheffield.ac.uk

Full contact details

Dr Xiao Chen
School of Electrical and Electronic Engineering

Profile: I received my BEng and MSc degrees in electrical engineering from Harbin Institute of Technology, China, in 2009 and 2011, respectively, and PhD degree in electrical machines from University of Sheffield, in 2015. My PhD research was mainly concerned with multiple three-phase machines for electric vehicles. From Jan 2016 to May 2018, I was a research associate at University of Sheffield, working on thermal modelling of direct-cooled electrical machines with hollow conductors and electro-thermally coupled models for electric vehicle powertrain. From July 2018 to Sep 2019, I was an advanced motor drives engineer in Dyson Technology Limited.

In Sep 2019, I came back to University of Sheffield as a lecturer in electrical machines and was promoted to senior lecturer in Jan 2024. I received an EPSRC New Investigator Award to address the challenges in bearing currents caused by high frequency switching in power converters, particularly for the applications in which insulated bearings or shafting grounding is not viable. Meanwhile, I am leading a work package in EPSRC Future Electrical Machine Manufacturing Hub to investigate the manufacturing effects on core losses in electrical machines, including the edge damage effects caused by laser cut and the mechanical stress effects due to shrink fit.

I have also led or co-led various industry funded projects, including investigations on Litz wire AC losses in electrical machines, high frequency behaviours in electrical machines, advanced SiC inverter driven permanent magnet synchronous machine systems for electric vehicles, and flux switching machines in power tool applications.

I am actively involved in the investigations of neural network-based methods for high-fidelity and computationally efficient machine modelling, fault diagnosis, and condition monitoring of electrical machines.

I am also interested in high-speed electrical machines for traction and fuel cell applications, and development of rare-earth free electrical machines for electric vehicles.

Research interests

Bearing currents in electrical machines
High frequency effects in electrical machines
Manufacturing effects on core losses in electrical machines
Neural network-based methods for high-fidelity and computationally efficient machine modelling, fault diagnosis, and condition monitoring of electrical machines
High-speed electrical machines for traction and fuel cell
Rare-earth free electrical machines for electric vehicles
Multi-phase fault tolerant electrical machines for more electric aircraft
Digital twin of electrical machines and drives

Publications

Journal articles

Tokgoz F, Zhu ZQ, Chen X, Yang H, Yang L & Liu C (2026) Novel Hybrid Magnet Asymmetric Rotors for Electric Vehicles. IEEE Transactions on Transportation Electrification, 1-1.
Li H, Chen X & Zhu ZQ (2026) Online Monitoring of Internal Ground-wall Insulation in Permanent Magnet Synchronous Machines. IEEE Transactions on Transportation Electrification, 1-1.
Li W, Li H, Chen X, Griffo A & Sun X (2025) Data-Driven Open-Circuit Fault Diagnosis for PMSM Drives: Feature Extraction via Normalized Current Space Vector Sorting. IEEE Transactions on Industry Applications.
Li W, Gaetano DD, Zhu W, Chen X & Sun X (2025) A Novel Data-Driven Method for Ball Bearing Impedance Modelling. IEEE Transactions on Dielectrics and Electrical Insulation, 1-1.
Zhu W, Sun Y, Chen X, Wang J, Jewell GW, Chong E & Reeh A (2025) AC Loss Calculation for Litz Wire Windings in Electrical Machines. IEEE Transactions on Transportation Electrification, 1-1.
Zhu W, Sun Y, Chen X & Jewell GW (2025) A Hybrid Winding Design to Reduce AC Losses in Electrical Machines with Bar Conductors. IEEE Transactions on Transportation Electrification, 1-1.
De Gaetano D, Winter A, Tinkler L & Chen X (2025) Analysis of Magnetic Degradation and Kerf Surface for NO20 Non-Oriented Electrical Steel Subjected to Remote Laser Cutting. IEEE Transactions on Magnetics, 61(10), 1-7.
Tokgoz F, Zhu ZQ, Chen X, Liu C, Yang L, Yuan Y, Yang H & Huang Y (2025) Feasibility Analysis of Multiphase Machines for Electric Vehicle Applications. IEEE Transactions on Industry Applications, 61(6), 9216-9231.
Zhu W, De Gaetano D, Sun X, Li H, Chen X, Griffo A & Jewell GW (2025) Localized Asymmetric Behavior of Common-Mode Current Through Bearing Balls. IEEE Transactions on Energy Conversion, 1-11.
Liu C, Chen X, Zhang Y, Shi S, Meng Z, Li Z & Su W (2025) Three-Dimensional Semi-Finite Element Based Proximity Loss Calculation for Litz Wires in a High Frequency Transformer. IEEE Transactions on Industry Applications, 61(1), 560-571.
Wang B, Wei Z, Yu H, Chen X, Cheng M & Hua W (2024) A triple 3-phase fault-tolerant fractional slot concentric winding interior permanent-magnet machine with low space harmonics. Electrical Engineering, 106(5), 5473-5484.
Chen X, Wu H, Ede JD, Jewell GW, Jones LM & Ghadbeigi H (2023) A model to account for magnetic permeability changes resulting from edge damage caused by laser cutting in a high performance cobalt-iron alloy. Journal of Magnetism and Magnetic Materials, 584. View this article in WRRO
De Gaetano D, Zhu W, Sun X, Chen X, Griffo A & Jewell GW (2023) Novel stator slot opening to reduce electrical machine bearing currents. IEEE Transactions on Magnetics, 59(11). View this article in WRRO
Gaetano DD, Zhu W, Sun X, Chen X, Griffo A & Jewell GW (2023) Experimental ball bearing impedance analysis under different speed and electrical conditions. IEEE Transactions on Dielectrics and Electrical Insulation, 30(3), 1312-1321. View this article in WRRO

Book chapters

Hu Y & Chen X (2024) Conductive Common-Mode EMI Suppressing Methods in Inverter Fed Motor Drives, Green Energy and Technology (pp. 83-114). Springer Nature Singapore

Conference proceedings

Li W, Li H, Sun X, Chen X & Griffo A (2025) Metric Learning-Based Open-Circuit Fault Diagnosis Method for Three-Phase Inverters. 2025 IEEE Energy Conversion Conference Congress and Exposition (ECCE) (pp 1-6), 19 October 2025 - 23 October 2025.
Sun X, Zhu W, Chen X, Griffo A & Jewell G (2024) Fast Algorithm for Eliminating Common Mode Voltage in Dual Three-phase Inverter. 2024 IEEE Energy Conversion Congress and Exposition (ECCE) (pp 3895-3901), 20 October 2024 - 24 October 2024.
Li W, Li H, Chen X, Griffo A & Sun X (2024) A Novel 1D-CNN Open Circuit Fault Diagnosis for PMSM Drives Using Normalized Current Space Vector Sorting. 2024 IEEE Energy Conversion Congress and Exposition (ECCE) (pp 6478-6483), 20 October 2024 - 24 October 2024.
Elkington H, Mason B, Leering M, Chen X, Winter A, Tinkler L, Sezer K & Marimuthu S (2024) Water jet guided laser cutting of electrical steel laminations. Procedia CIRP, Vol. 124 (pp 505-508)
Ward MJ, Tinkler L, Chen X, Atkinson G, Paterson L, Miscandlon J, Jewell GW & O'Keefe L (2023) Developing requirements for future electrical machine manufacture to achieve a net zero future. IET Conference Proceedings, Vol. 2023(29) (pp 15-19)
Sun Y, Chen X, Zhu W & Jewell GW (2023) An Investigation of Substituting Copper with Aluminum Conductors in a High Power, Medium Speed SPM Machine. 2023 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific) (pp 1-8), 28 November 2023 - 1 December 2023.
Li H, Zhu W, Liu C, Sun X, De Gaetano D, Chen X, Griffo A, Zhu ZQ, Jewell GW, Yang L , Yuan Y et al (2023) A New Analytical Model for Voltage Stress Analysis at Neutral Point of Stator Windings. 2023 26th International Conference on Electrical Machines and Systems (ICEMS) (pp 1364-1369), 5 November 2023 - 8 November 2023.
Zhu W, Gaetano DD, Sun X, Li H, Chen X, Griffo A, Jewell GW, Zhu ZQ, Liu C, Yang L , Yuan Y et al (2023) Effect of Load on Impedance Characteristics of High Frequency Circulating Bearing Current Path in Stator Laminations for an Inverter Fed AC Machine. 2023 26th International Conference on Electrical Machines and Systems (ICEMS) (pp 952-957), 5 November 2023 - 8 November 2023.
Tokgoz F, Zhu ZQ, Chen X, Liu C, Yang L, Yuan Y, Yang H & Huang Y (2023) Asymmetric and Symmetrical Rotor Core Shaping Techniques of IPMSMs for EVs. 2023 26th International Conference on Electrical Machines and Systems (ICEMS) (pp 377-382), 5 November 2023 - 8 November 2023.
Tokgoz F, Zhu ZQ, Chen X, Liu C, Yang L, Yuan Y, Yang H & Huang Y (2023) Comparative Study of Multiphase IPMSMs for EV Applications. 2023 26th International Conference on Electrical Machines and Systems (ICEMS) (pp 383-388), 5 November 2023 - 8 November 2023.
Liu C, Chen X, Zhang Y, Shi S, Meng Z, Li Z & Su W (2023) Three-Dimensional Semi-Finite Element Based Proximity Loss Calculation for Litz Wires in A High Frequency Transformer. 2023 IEEE Energy Conversion Congress and Exposition (ECCE) (pp 2783-2788), 29 October 2023 - 2 November 2023.
Liu H, Jewell GW & Chen X (2023) Line-connected permanent magnet generator with adjustable excitation for variable-frequency AC aircraft power systems. 2023 IEEE International Electric Machines & Drives Conference (IEMDC) (pp 1-7), 15 May 2023 - 18 May 2023.

Teaching activities

EEE301 - Power Systems Engineering
EEE338 - Power Engineering
EEE341 - Electrical Power Systems

Professional activities and memberships

Senior Member, IEEE

Other responsibilities

Processes and Policies Lead
Counsellor of IEEE Student Branch at University of Sheffield

School of Electrical and Electronic Engineering

School of Electrical and Electronic Engineering

Dr Xiao Chen

Journal articles

Book chapters

Conference proceedings

Links