Researchers at UCD


Terence O'Donnell

Associate Professor

School Of Electrical & Electronic Eng
Engineering Building
Dublin 4

Tel: +353 1 7161953


Terence O'Donnell received his BE in Electrical Engineering UCD in 1990.  In 1995 he received his PhD degree from National University of Ireland for research in the area of Finite Element Analysis of magnetic field problems. He joined PEI (Power Electronics Ireland) Technologies in the Tyndall National Institute in Cork in 1996 as a research officer, where he worked on industrial research projects mostly in the area of magnetic component design for application in power electronic converters. In 1999 he became a senior research officer and team leader for the power electronics team with a particular research focus on integrated magnetics for low power dc-dc conversion. His role involved directing the team¿s research activities in the area of integrated magnetics. He has worked on numerous research projects, both at national and international level, relating to design, modelling and fabrication of planar magnetics for power conversion and data communications, magnetic field sensors, inductive powering and energy harvesting.

From 2009 to Dec 2012 he worked with Enterprise Ireland, the Irish innovation and development agency charged with the development of indigenous Irish industry. In this role he co-ordinated Ireland¿s involvement in the Eureka network, a European programme which facilitates collaborative, industrial R&D between industry and researchers in Europe.

Terence is an author on over 50 publications in peer reviewed journals in the areas of inductor and transformer design, magnetic sensors and energy harvesting devices. He is a frequent reviewer for IEEE Transactions on Magnetics, Transactions on Power Electronics, and the Transactions on Power Systems.  He currently holds three patents.

Terence joined University College Dublin in January 2013 as a senior lecturer and is a principle investigator with the Electricity Research Centre, where he looks after the strand dealing with Interconnection. His current research focus is on the use of power electronics converters in power systems and in particular on the integration and interfacing of power electronics to the grid. Particular interests include the development of power electronics or solid state transformers and the application of power electronics in the interconnection of offshore renewable energy. 




Patent US 7,320,936 : Plating of multi-layer structures
Patent US 8,029,922 : Forming electroplated inductor structures for integrated circuits
Patent US 6,150,915 : Magnetic components and their production


Year 1996 Institution: University College Dublin
Qualification: PhD Subject: Thesis Title: Solution Techniques for the Finite Element Analysis of Nonlinear Magnetostatic Problem
Year 1990 Institution: University College Dublin
Qualification: BE Subject: Bachelor of Engineering, Electrical Engineering



Book Chapters

P. McCloskey, T. O¿Donnell, B. Jamieson, M. Morris, S. Roy (2016) 'Electrochemical Fabrication of Multi-Nanolayers' In: M Aliofkhazraei, A.S.H. Makhlouf (eds). Handbook of Nanoelectrochemistry. Switzerland: Springer International Publishing. [Details]
SP Beeby, T O¿Donnell (2009) 'Electromagnetic Energy Harvesting' In: Shashank Priya, Daniel J. Inman (eds). Energy Harvesting Technologies. New York: Springer. [Details]
T O'Donnell, W Wang (2009) 'Power Management, Energy Conversion and Energy Scavenging for Smart Systems' In: K. Delaney (eds). Ambient Intelligence with Microsystems. New York: Springer. [Details]

Peer Reviewed Journals

R Meere, J Ruddy, P McNamara, T O'Donnell (2017) 'Variable AC transmission frequencies for offshore wind farm interconnection'. Renewable Energy, 103 :321-332. [Details]
Jonathan Ruddy, Ronan Meere, Cathal O'Loughlin, Terence O'Donnell (2018) 'Design of VSC Connected Low Frequency AC Offshore Transmission with Long HVAC Cables'. IEEE Transactions on Power Delivery, (99). [DOI] [Details]
J. Ruddy, R. Meere, T. O¿Donnell (2015) 'A Comparison of VSC-HVDC with Low Frequency AC for Offshore Wind Farm Design and Interconnection'. Energy Procedia, 53 :280-289. [DOI] [Details]
P. McNamara, R. Meere, T. O¿Donnell, S. McLoone (2016) 'Control Strategies for Automatic Generation Control over MTDC Grids'. Control Engineering Practice, 54 :129-139. [DOI] [Details]
Ronan Meere, Ismail Ibrahim, Jonathan Ruddy, Cathal O¿Loughlin and Terence O¿Donnell (2016) 'Scaled Hardware Implementation of a Full Conversion Wind Turbine for Low Frequency AC Transmission'. Energy Procedia, . [Details]
Jonathan Ruddy, Ronan Meere, Terence O¿Donnell (2016) 'Low Frequency AC transmission for offshore wind power: A review'. Renewable and Sustainable Energy Reviews, 56 :75-86. [DOI] [Details]
O'Dwyer, J.; O'Donnell, T.; (1995) 'Choosing the relaxation parameter for the solution of nonlinear magnetic field problems by the Newton-Raphson method'. IEEE Transactions on Magnetics, 31 (3). [Details]
Ludwig, M.; Duffy, M.; O'Donnell, T.; McCloskey, P.; Mathùna, S.C.Ó (2005) 'PCB integrated inductors for low power DC/DC converter'. IEEE Transactions on Power Electronics, . [Details]
Roy, S.; Connell, A.; Ludwig, M.; Wang, N.; O¿Donnell, T.; Brunet, M.; McCloskey, P.; ÓMathúna, C.; Barman, A.; Hicken, RJ (2005) 'Pulse reverse plating for integrated magnetics on Si,Journal of magnetism and magnetic materials'. Journal of Magnetism & Magnetic Materials, 290 :1524-1527. [Details]
Tipek, A.; O'Donnell, T.; Ripka, P.; Kubik, J (2005) 'Excitation and temperature stability of PCB fluxgate sensor'. IEEE Sensors Journal, . [Details]
Wang, N.; O¿Donnell, T.; Roy, S.; Brunet, M.; McCloskey, P.; O¿Mathuna, SC (2005) 'High-frequency micro-machined power inductors'. Journal of Magnetism & Magnetic Materials, 290 . [Details]
Prabhakaran, S.; O¿Donnell, T.; Sullivan, C.R.; Brunet, M.; Roy, S.; O¿Mathuna, C. (2005) 'Microfabricated coupled inductors for integrated power converters'. Journal of Magnetism & Magnetic Materials, . [Details]
Mathuna, S.C.O.; O'Donnell, T.; Wang, N.; Rinne, K (2005) 'Magnetics on silicon: an enabling technology for power supply on chip'. IEEE Transactions on Power Electronics, 20 (3):585-592. [Details]
O¿Donnell, T.; Tipek, A.; Connell, A.; McCloskey, P.; O¿Mathuna, SC (2006) 'Planar fluxgate current sensor integrated in printed circuit board'. Sensors and Actuators A-Physical, 129 . [Details]
Kulkarni, S.; Roy, S.; O¿Donnell, T.; Beeby, S.; Tudor, J (2006) 'Vibration based electromagnetic micropower generator on silicon'. Journal of Applied Physics, 99 . [Details]
Wang, N.; O¿Donnell, T.; Roy, S.; McCloskey, P.; O¿Mathuna, C (2007) 'Micro-inductors integrated on silicon for power supply on chip'. Journal of Magnetism & Magnetic Materials, . [Details]
Ludwig, M.; Duffy, M.; O'Donnell, T.; McCloskey, P.; ÓMathùna, S.C (2007) 'Design study for ultraflat PCB-integrated inductors for low-power conversion applications'. IEEE Transactions on Magnetics, . [Details]
McCloskey, P.; Jamieson, B.; O¿Donnell, T.; Gardner, D.; Morris, M.A.; Roy, S (2008) 'High-frequency nanostructured magnetic materials for integrated inductors'. Journal of Magnetism & Magnetic Materials, . [Details]
Rhen, F.M.F.; McCloskey, P.; O¿Donnell, T.; Roy, S (2008) 'High-frequency permeability of electroplated CoNiFe and CoNiFe¿C alloys'. Journal of Magnetism & Magnetic Materials, . [Details]
Wang, N.; O'Donnell, T.; Meere, R.; Rhen, F.M.F.; Roy, S.; O'Mathuna, S.C (2008) 'Thin-film-integrated power inductor on Si and its performance in an 8-MHz buck converter'. IEEE Transactions on Magnetics, 44 (44):4096-4099. [Details]
Meere, R.; O'Donnell, T.; Wang, N.; Achotte, N.; Kulkarni, S.; O'Mathuna, SC (2009) 'Size and performance tradeoffs in micro-inductors for high frequency DC-DC conversion'. IEEE Transactions on Magnetics, . [Details]
Meere, R.; O'Donnell, T.; Bergveld, H.J.; Wang, N.; O'Mathuna, S.C (2009) 'Analysis of Microinductor Performance in a 20--100 MHz DC/DC Converter'. IEEE Transactions on Power Electronics, . [Details]
Wang, N.; O'Donnell, T.; O'Mathuna, C.; (2013) 'An Improved Calculation of Copper Losses in Integrated Power Inductors on Silicon'. IEEE Transactions on Power Electronics, 28 (8). [Details]
Brunet, M.; O'Donnell, TC; Baud, L.; Wang, N.; O'Brien, J.; McCloskey, P.; O'Mathuna, S.C (2002) 'Electrical performance of microtransformers for DC-DC converter applications'. IEEE Transactions on Magnetics, . [Details]
Brunet, M.; O'Donnell, T.; O'Brien, J.; McCloskey, P.; Mathuna, S.C.O (2002) 'Thick photoresist development for the fabrication of high aspect ratio magnetic coils'. Journal of Micromechanics and Microengineering, . [Details]
Tipek, A.; Ripka, P.; O¿Donnell, T.; Kubik, J (2004) 'PCB technology used in fluxgate sensor construction'. Sensors and Actuators A-Physical, . [Details]
Chevalerias, O.; O'Donnell, T.; Power, D.; O'Donovan, N.; Duffy, G.; Grant, G.; O'Mathuna, S.C (2005) 'Inductive telemetry of multiple sensor modules'. IEEE Pervasive Computing, . [Details]
Saha, C.R.; O'Donnell, T.; Loder, H.; Beeby, S.; Tudor, J (2006) 'Optimization of an electromagnetic energy harvesting device'. IEEE Transactions on Magnetics, . [Details]
Beeby, SP; Torah, RN; Tudor, MJ; Glynne-Jones, P.; O'Donnell, T.; Saha, CR; Roy, S.; ", (2007) 'A micro electromagnetic generator for vibration energy harvesting'. Journal of Micromechanics and Microengineering, . [Details]
Saha, CR; O¿Donnell, T.; Wang, N.; McCloskey, P (2008) 'Electromagnetic generator for harvesting energy from human motion'. Sensors and Actuators A-Physical, . [Details]
Kulkarni, S.; Koukharenko, E.; Torah, R.; Tudor, J.; Beeby, S.; O'Donnell, T.; Roy, S (2008) 'Design, fabrication and test of integrated micro-scale vibration-based electromagnetic generator'. Sensors and Actuators A-Physical, . [Details]
Mathúna, C.Ó.; O¿Donnell, T.; Martinez-Catala, R.V.; Rohan, J.; O¿Flynn, B (2008) 'Energy scavenging for long-term deployable wireless sensor networks'. Talanta, . [Details]
Torah, R.; Glynne-Jones, P.; Tudor, M.; O'Donnell, T.; Roy, S.; Beeby, S (2008) 'Self-powered autonomous wireless sensor node using vibration energy harvesting'. Measurement Science & Technology, . [Details]
Kubík, J.; Vcelák, J.; O'Donnell, T.; McCloskey, P (2009) 'Triaxial fluxgate sensor with electroplated core'. Sensors and Actuators A-Physical, . [Details]
Jamieson, B.; O¿Donnell, T.; Kulkarni, S.; Roy, S.; (2010) 'Shape-independent permeability model for uniaxially-anisotropic ferromagnetic thin films'. Applied Physics Letters, . [Details]
Jamieson, B.; O'Donnell, T.; McCloskey, P.; Gardner, D.S.; Roy, S. (2010) 'Optimization of magnetic enhancement layers for high-frequency stripline micro-inductors'. Journal of Magnetism & Magnetic Materials, . [Details]
O'Donnell, T.; Wang, N.; Kulkarni, S.; Meere, R.; Rhen, F.M.F.; Roy, S.; O'Mathuna, SC (2010) 'Electrodeposited anisotropic NiFe 45/55 thin films for high-frequency micro-inductor applications'. Journal of Magnetism & Magnetic Materials, . [Details]
Meere, R.; Wang, N.; O'Donnell, T.; Kulkarni, S.; Roy, S.; O'Mathuna, S.C.; (2011) 'Magnetic-Core and Air-Core Inductors on Silicon: A Performance Comparison up to 100 MHz'. IEEE Transactions on Magnetics, . [Details]

Other Journals

R. Meere, J. Ruddy, T.O¿Donnell (2014) 'Variable Frequency Operation for Future Offshore Wind Farm Design: A Comparison with Conventional Wind Turbines' Energia Procedia 53 :280-289. [Details]
Mathuna, S.C.O.; O'Donnell, T.; Wang, N.; Rinne, K (2008) 'Magnetics on silicon: an enabling technology for power supply on chip' IEEE Transactions on Power Electronics . [Details]

Conference Publications

Junru Chen, Cathal O¿Loughlin, Terence O¿Donnell (2017) Dynamic Demand Minimization using a Smart Transformer 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2018 [Details]
Chen, J; Liu, M; O'Loughlin, C; Milano, F; O'Donnell, T (2018) Modelling, Simulation and Hardware-in-the-Loop Validation of Virtual Synchronous Generator Control in Low Inertia Power System 20th Power System Computation Conference (PSCC) [Details]
T Yang, R Meere, C O'Loughlin, T O'Donnell (2016) Performance of solid state transformers under imbalanced loads in distribution systems 016 IEEE Applied Power Electronics Conference and Exposition (APEC) Long Beach, CA, , pp.2629-2636 [DOI] [Details]
J Ruddy, R Meere, C O¿Loughlin, T. O¿Donnell (2016) Scaled hardware verification of low frequency AC transmission system for interconnection of offshore wind RPG 2016 International Conference on Renewable Power Generation [Details]
Edgaras Mickus, Trong Tue Vu, Terence O'Donnell (2016) A low-profile, high power density Inverter with minimal energy storage requirement for ripple cancellation 2016 IEEE 7th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) [DOI] [Details]
T Yang, K. McKenna, R Meere, T O¿Donnell (2015) The Evaluation of a modular Solid State Transformer and Low Frequency Distribution Transfomrer under Daily Loading Profile EPE'15 ECCE Europe [Details]
J. Ruddy, R. Meere, T.O¿Donnell (2015) Low Frequency AC Transmission as an Alternative to VSC-HVDC for GridInterconnection of Offshore Wind PowerTech 2015 [Details]
R. Meere, T. O¿Donnell, A. Keane (2013) Comparison of wind turbine/generator configurations for future offshore wind farms Universities Power Engineering Conference (UPEC) [Details]
Meere, R., O¿Donnell, T., Keane, A. (2013) Comparison of Wind Turbine/Generator Configurations for Future Offshore Wind Farms Universities Power Engineering Conference [Details]
T. Yang, R. Meere, O. Feeley, T. O¿Donnell (2014) Performance of 3-Phase, 4-Wire Solid State Transformer under Imbalanced Loads IEEE PES Transmission & Distribution Conference [Details]
P. McNamara, R. Meere, T. O¿Donnell, S. McLoone (2014) Distributed MPC for Frequency Regulation in Multi-Terminal HVDC Grids 19th World Congress of the International Federation of Automatic Control (IFAC) [Details]
T. Yang, C O¿Loughlin, R. Meere, N. Wang, Z. Pavlovic, T. O'Donnell (2014) Investigation of Modularity in DC-DC Converters for Solid State Transformers 5th International Symposium on Power Electronics for Distribute Generation Systems (PEDG) [Details]


Research Interests

Current research interests are on the use of power electronics converters in power systems and in particular on the integration and interfacing of power electronics to the grid. Specific topics of research at present include the use of low frequency AC as a transmission technology for offshore wind, the role of solid state transformers in the distribution grid, virtual synchronous machine control for inverters and the development of real time simulation with power hardware in the loop.

Research Projects

Sponsor : Science Foundation Ireland (SFI)
Title : Sustainable Electrical Energy Systems SRC sub account from R12207
Start Date / End Date : 13-DEC-10 / 12-DEC-17
Sponsor : Enterprise Ireland (EI)
Title : Provisions of Power System Services from Flywheel Technology
Start Date / End Date : 01-SEP-15 / 29-FEB-16

Current Postgraduate Students

Shaban Awili, Doctor of Philosophy (PhD)   -   Thesis Supervisor