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Chris Gerada

Associate Professor in Electrical Machines, Royal Accademy of Engineering/Cummins Senior Reaserch Fellow, Faculty of Engineering

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Biography

Dr. Chris Gerada obtained his PhD in Numerical Modelling of Electrical Machines from the University of Nottingham, England in 2005. He subsequently worked as a researcher at Nottingham on high performance electrical drives and on the design and modelling of electromagnetic actuators for aerospace applications.

He is currently a Lecturer in Electrical Machines within the PEMC research group at Nottingham. He is also the project manager of the GE Aviation Strategic Partnership and his research interests include high performance electric drives and machines.

Expertise Summary

Aerospace actuation, Electrical machine design and modelling, Variable speed drives.

Research Summary

  • High performance motor drive systems for transport applications.
  • Development of new machine drive technology for renewable and distributed generation.
  • High torque density electrical machines.
  • Sensorless Control.
  • Multi - Physics Modelling

Teaching

Recent Publications

  • M. GALEA, C. GERADA, T.RAMINOSOA and P. WHEELER, 2012. A Thermal Improvement Technique for the Phase Windings of Electrical Machines IEEE Transactions onIndustry Applications.
  • XIAOYAN HUANG, GERADA, C., GOODMAN, A., BRADLEY, K., HE ZHANG and YOUTONG FANG, 2011. A Brushless DC motor design for an aircraft electro-hydraulic actuation system In: 2011 IEEE International Electric Machines & Drives Conference (IEMDC), 15-18 May 2011.
  • RAMINOSOA, T., GERADA, C., OTHMAN, N. and DE LILLO, L., 2011. Rotor losses in fault-tolerant permanent magnet synchronous machines IET Electrical Power Applications. 5(1),
  • JING LI, SUMNER, M., ARELLANO-PADILLA, J. and ASHER, G., 2011. Operating limits for drive condition monitoring using supply current signature analysis In: 2011 IEEE International Electric Machines & Drives Conference (IEMDC).
  • M. GALEA, C. GERADA, T.RAMINOSOA and P. WHEELER, 2012. A Thermal Improvement Technique for the Phase Windings of Electrical Machines IEEE Transactions onIndustry Applications.
  • XIAOYAN HUANG, GERADA, C., GOODMAN, A., BRADLEY, K., HE ZHANG and YOUTONG FANG, 2011. A Brushless DC motor design for an aircraft electro-hydraulic actuation system In: 2011 IEEE International Electric Machines & Drives Conference (IEMDC), 15-18 May 2011.
  • RAMINOSOA, T., GERADA, C., OTHMAN, N. and DE LILLO, L., 2011. Rotor losses in fault-tolerant permanent magnet synchronous machines IET Electrical Power Applications. 5(1),
  • JING LI, SUMNER, M., ARELLANO-PADILLA, J. and ASHER, G., 2011. Operating limits for drive condition monitoring using supply current signature analysis In: 2011 IEEE International Electric Machines & Drives Conference (IEMDC).
  • HE ZHANG, ZANCHETTA, P., GERADA, C., BRADLEY, K. and JUNYI LIU., 2011. Performance evaluation of induction motor efficiency and in-service losses measurement using standard test methods In: 2011 IEEE International Electric Machines & Drives Conference (IEMDC).
  • JASIM, O., SUMNER, M., GERADA, C. and ARELLANO-PADILLA, J., 2011. Development of a new fault-tolerant induction motor control strategy using an enhanced equivalent circuit model IET Electric Power Applications. 5(8),
  • ARELLANO-PADILLA, J., SUMNER, M. and GERADA, C., 2011. Winding condition monitoring schemefor a permanent magnet machine using high-frequency injection IET Electrical Power Applications. 5(1),
  • ARELLANO-PADILLA, J., SUMNER, M., GERADA, C. and BUCKLEY, G., 2011. Evaluation of the machine non-linearities as an aid to develop self-commissioning in sensorless drives In: EPE 2011.
  • ARELLANO-PADILLA, J,, SUMNER, M., GERADA, C. and BUCKLEY, G., 2011. Detection of Inter-Coil Short Circuits in the Stator Winding of a PM Machine by using Saliency Tracking Schemes In: ECCE 2011 17-22 Sept.
  • GIANGRANDE, P., CUPERTINO, F., PELLEGRINO, G., RONCHETTO, D., GERADA, C. and SUMNER, M., 2011. Analysis of two-part rotor, axial flux permanent magnet machines In: ECCE 2011 17-22 Sept. (In Press.)
  • GIANGRANDE, PAOLO, RONCHETTO, DAVIDE, PELLEGRINO, GIANMARIO, CUPERTINO, FRANCESCO, GERADA, CHRIS and SUMNER, MARK, 2011. Hybrid sensorless control of axial flux permanent magnet motor drives, including zero speed In: EPE 2011.
  • HAMITI, T., GERADA, C, and ROTTACH, M., 2011. Weight optimisation of a surface mount permanent magnet synchronous motor using genetic algorithms and a combined electromagnetic-thermal co-simulation environment In: ECCE 2011 17-22 Sep.
  • ARUMUGAM, P., HAMITI, T. and GERADA, C., 2011. Analytical modeling of a vertically distributed winding configuration for Fault Tolerant Permanent Magnet Machines to suppress inter-turn short circuit current limiting In: 2011 IEEE International Electric Machines & Drives Conference (IEMDC).
  • RAMINOSOA, T., GERADA, C. and GALEA, M., 2011. Design Considerations for a Fault-Tolerant Flux-Switching Permanent-Magnet Machine IEEE Transactions on Industrial Electronics. 58(7),
  • RAMINOSOA, T., HAMITI,, T., GALEA, M, and GERADA, C., 2011. Feasibility and Electromagnetic Design of Direct Drive Wheel Actuator for Green Taxiing In: ECCE 2011 17-22 Sep.
  • GERADA, D., MEBARKI, A., BROWN, N.L., BRADLEY, K.J. and GERADA, C., 2011. Design Aspects of High-Speed High-Power-Density Laminated-Rotor Induction Machines IEEE Transactions on Industrial Electronics. 58(9),
  • PELLEGRINO, GIANMARIO and GERADA, CHRIS, 2011. Modeling of Flux Reversal Machines for direct drive applications In: EPE 2011.
  • X.HUANG, A. GOODMAN, C. GERADA, Y. FANG and Q. LU, 2011. A Single Sided Matrix Converter Drive for a Brushless DC Motor in Aerospace Applications IEEE Transactions on Industrial Electronics.
  • DE LILLO, L., EMPRINGHAM, L., WHEELER, P. W., KHWAN-ON, S., GERADA, C., OTHMAN, M. N. and HUANG, X, 2010. Multiphase Power Converter Drive for Fault-Tolerant Machine Development in Aerospace Applications IEEE Transactions on Industrial Electronics. 57(2), 575-583
  • ARELLANO-PADILLA, J., GERADA, C., ASHER, G. and SUMNER, M., 2010. Inductance Characteristics of PMSMs and their Impact on Saliency-based Sensorless Control In: EPE-PEMC 2010.
  • GALEA, M., GERADA, C., RAMINOSOA, T. and WHEELER, P., 2010. Design of a high force density tubular permanent magnet motor In: International Conference on Electrical Machines (ICEM), 6-8 Sept. 2010.
  • ZHANG, HE, ZANCHETTA, P., GERADA, C., CAO, W. and BRADLEY, K., 2010. Design of a Calorimeter for Induction Machine Efficiency Measurement by CFD Modeling In: IECON 2010.
  • JASIM, O, SUMNER, M., GERADA, C. and ARELLANO-PADILLA, J., 2010. FAULT RIDE THROUGH CONTROL FOR A DELTA CONNECTED INDUCTION MOTOR WITH AN OPEN WINDING FAULT BY CONTROLLING THE ZERO SEQUENCE VOLTAGE In: PEMD 2010.
  • ZHANG, H, ZANCHETTA, P, BRADLEY, K and GERADA, C, 2010. A Low-intrusion Load and Efficiency Evaluation Method for In-Service Motors Using Vibration Tests with an Accelerometer IEEE Transactions on Industry Applications.
  • RAMINOSOA, T. and GERADA, C, 2010. NOVEL FAULT TOLERANT DESIGN OF FLUX SWITCHING MACHINES In: PEMD 2010.
  • RAMINOSOA, T. and GERADA, C., 2010. Fault tolerant winding technology comparison for Flux Switching Machine In: International Conference on Electrical Machines (ICEM), 6-8 Sept. 2010.
  • RAMINOSOA, T., GERADA, C. and GALEA, M., 2010. Design Considerations for a Fault Tolerant Flux Switching Permanent Magnet Machine IEEE Transactions on Industrial Electronics.
  • GILSON, G.M., RAMINOSOA, T., PICKERING, S.J., GERADA, C. and HANN, D.B., 2010. A combined electromagnetic and thermal optimisation of an aerospace electric motor In: International Conference on Electrical Machines (ICEM), 6-8 Sept. 2010.
  • GERADA, C. and RAMINOSOA, T, 2010. Fault-Tolerant Electrical Motor Drives for Aerospace Application In: SAE 2010.
  • GERADA, D., MEBARKI, A., BROWN, N., BRADLEY, K.J. and GERADA, C., 2010. Design Aspects of High Speed, High Power Density, Laminated Rotor Induction Machines IEEE Transactions on Industrial Electronics.
  • GERADA, D., MEBARKI, A, BROWN, N.L. and GERADA, C., 2010. Optimal split ration for high speed induction machines In: ECCE 2010.
  • TSARFIDY, R., GERADA, D. and GERADA, C, 2010. Fault tolerant design of a high speed permanent magnet machine In: PEMD 2010.
  • CLARE, J., DE LILLO, L., EMPRINGHAM, L., GERADA, C., JASMIN, O., KHWAN-ON, S., OTHMAN, M. and WHEELER, P., 2009. Fault Tolerant Power Converter Topologies for PMSM Drives in Aerospace Applications In: EPE 2009.
  • TRENTIN, A., ZANCHETTA, P., GERADA, C., CLARE, J. and WHEELER, P. W, 2009. Optimized Commissioning Method for Enhanced Vector Control of High-Power Induction Motor Drives IEEE Transactions on Industrial Electronics. 56(5), 1708-1717
  • DE LILLO, L., EMPRINGHAM, L., WHEELER, P., KHWAN-ON, S. and GERADA, C, 2009. Emulation of faults and remedial control strategies in a multiphase power In: EPE 2009.
  • ARELLANO-PADILLA, J., SUMNER, M., GERADA, C. and JING, L., 2009. A Novel Approach to Gearbox Condition Monitoring by Using Drive Rectifier Input Currents In: EPE 2009.
  • JASIM, O., GERADA, C., SUMNER, M. and ARELLANO-PADILLA, J, 2009. Operation of an induction motor with an open circuit fault by controlling the zero sequence voltage In: IEEE International Electric Machines and Drives Conference, 2009. 1426-1433
  • GERADA, C., PADILLA, J.A., SUMNER, M. and RAMINOSOA, T., 2009. Loading effects on saliency based sensorless control of PMSMs In: Elec International Conference on trical Machines and Systems, 2009. ICEMS 2009..
  • RAMINOSOA, TSARAFIDY, GERADA, CHRIS and OTHMAN, NAZRI, 2009. Rating issues in fault tolerant PMSM In: IEEE International Electric Machines and Drives Conference, 2009. IEMDC '09. 1592-1599
  • RAMINOSOA, TSARAFIDY, GERADA, CHRIS and OTHMAN, NAZRI, 2009. Performance comparison of fault tolerant PM machine for static load holding application In: IEEE International Electric Machines and Drives Conference, 2009. IEMDC '09. 1729-1735
  • GERADA, D., MEBARKI, A., MOKHADKAR, R.P., BROWN, N.L. and GERADA, C, 2009. Design issues of high-speed permanent magnet machines for high-temperature applications In: IEEE International Electric Machines and Drives Conference, 2009. IEMDC '09. 1036-1042
  • GERADA, D., MEBARKI, A. and GERADA, C, 2009. Optimal design of a high speed concentrated wound PMSM In: ICEMS 2009. International Conference on Machines and Systems.
  • GILSON, G., PICKERING, S.J., HANN, D.B. and GERADA, C, 2009. Analysis of the end winding heat transfer variation with altitude in electric motors In: IECON '09. 35th Annual Conference of IEEE Industrial Electronics.
  • DE LILLO, LILIANA, WHEELER, PATRICK, EMPRINGHAM, LEE, GERADA, CHRIS and XIAOYANHUANG, 2008. A power converter for fault tolerant machine development in aerospace applications In: Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 388-392
  • KAMPISIOS, KONSTANTINOS, ZANCHETTA, PERICLE, GERADA, CHRIS, TRENTIN, ANDREW and JASIM, OMAR, 2008. Induction Motor parameters identification using Genetic Algorithms for varying flux levels In: Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 887-892
  • POLJUGAN, ALEN, SUMNER, MARK, GERADA, CHRIS and QIANG GAO, 2008. Modelling and simulation of a signal injection self-sensored drive In: Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 1058-1063
  • JASIM, O., GERADA, C., SUMNER, M. and ARELLANO-PADILLA, J, 2008. A simplified model for induction machines with faults to aid the development of fault tolerant drives In: Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 1173-1180
  • ARELLANO-PADILLA, JESUS, SUMNER, MARK and GERADA, CHRIS, 2008. Condition monitoring for mechanical faults in fully integrated servo drive systems In: Power Electronics and Motion Control Conference, 2008. EPE-PEMC 2008. 769-775
  • JASIM, O., GERADA, C., SUMNER, M. and ARELLANO-PADILLA, J, 2008. Investigation of induction machine phase open circuit faults using a simplified equivalent circuit model In: 18th International Conference on Electrical Machines, 2008. 1-6
  • KAMPISIOS, K., ZANCHETTA, P., GERADA, C. and TRENTIN, A, 2008. Identification of Induction Machine Electrical Parameters Using Genetic Algorithms Optimization In: ndustry Applications Society Annual Meeting, 2008. 1-7
  • ARELLANO-PADILLA, J., SUMNER, M. and GERADA, C, 2008. On-line detection of stator winding short-circuit faults in a PM machine using HF signal injection In: 18th International Conference on Electrical Machines, 2008. 1-8
  • 2008. Investigation of induction machine phase open circuit faults using a simplified equivalent circuit model In: 18th International Conference on Electrical Machines, 2008. 1-8
  • GERADA, C., BRADLEY, K. J. and , 2008. Integrated PM Machine Design for an Aircraft EMA IEEE Transactions on Industrial Electronics. 55(9), 3300-3306
  • GERADA, C., BRADLEY, K., SUMNER, M., ASHER, G. and ARELLANO-PADILLA, J, 2007. Permanent Magnet Synchronous machines for Saliency-based, Self-Sensored Motion Control In: 33rd Annual Conference of the IEEE Industrial Electronics Society, 2007. IECON 2007. 1038-1043
  • GERADA, CHRIS, BRADLEY, KEITH, HUANG, XIAOYAN, GOODMAN, ANDREW, WHITLEY, CHRIS and TOWERS, GRAHAM, 2007. A 5-Phase Fault-Tolerant Brushless Permanent Magnet Motor Drive for an Aircraft Thin Wing Surface Actuator In: IEEE International Electric Machines & Drives Conference, 2007. IEMDC '07. 1643-1648
  • GERADA, C., BRADLEY, K., WHITLEY, C. and TOWERS, G, 2007. High Torque Density PM Machines for High Performance Operation In: 33rd Annual Conference of the IEEE Industrial Electronics Society, 2007. IECON 2007. 210-215
  • GERADA, C., BRADLEY, K.J., SUMNER, M., WHEELER, P.W., CLARE, J.C., WHITLEY, C. and TOWERS, G., 2004. The Implications of Winding Faults in Induction Motor Drives In: CONFERENCE RECORD OF THE 2004 IEEE INDUSTRY APPLICATIONS CONFERENCE. 2506 - 2513
  • ROBSON, P.A., BRADLEY, K.J., WHEELER, P.W., CLARE, J.C., DE LILLO, L., GERADA, C., LAMPARD, D., GOH, C.K., TOWERS, G. and WHITLEY, C., 2003. The Impact of Matrix Converter Technology on Motor Design for an Integrated Flight Control Surface Actuation System In: IEEE IEMDC''03: IEEE INTERNATIONAL ELECTRIC MACHINES AND DRIVES CONFERENCE. 1321 - 1327
  • ROBSON PA, BRADLEY KJ, WHEELER P, CLARE J, DE LILLO L, GERADA C, PICKERING SJ, LAMPARD D, GOH CK, TOWERS G, WHITLEY C, 2003. The impact of matrix converter technology on motor design for anintegrated flight control surface actuation system In: EEE IEMDC'03: IEEE INTERNATIONAL ELECTRIC MACHINES AND DRIVES CONFERENCE. 1321-1327
  • GERADA, C., BRADLEY, K.J., SUMNER, M. and SEWELL, P., 2003. Analysis of and compensation for cross saturation due to skew leakage in indirect field orientated induction motor drives In: EPE 2003.
  • GERADA, C., BRADLEY, K.J., SUMNER, M. and SEWELL, P., 2003. Evaluation and modelling of cross saturation due to leakage flux in vector controlled induction machines In: IEMDC'03: IEEE International Electric Machines and Drives Conference. 1983-1989
  • GERADA, C., BRADLEY, K.J., SUMNER, M. and SEWELL, P., 2003. Evaluation of a vector controlled induction motor drive using the dynamic magnetic circuit model In: Conference record of the 2003 IEEE Industry Applications Conference. 862-869
  • RAMINOSOA, T. and GERADA, C., A comparative syudy of permanent magnet-synchronous and permanent magnet-flux switching machines for fault tolerant drive systems, In: ECCE 2010.

Faculty of Engineering

The University of Nottingham
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Nottingham, NG7 2RD


telephone: +44 (0) 115 951 5533
email:eng-student-support@nottingham.ac.uk