"I am an academic and chartered engineer with the Institute of Engineering and Technology.
I have a broad expertise in electrical and electronic engineering with a strong industrial background."
My main research areas are in novel electrical machines power electronics and the control of drives. I am also active in energy conversion including pulsed power and power electronic systems. I have also had research projects in other areas of electrical and electronic engineering including; battery monitoring and management rapid battery recharging electrical power systems renewable energy and more recently pulsed plasma thrusters for spacecraft.
Torque Ripple Reduction Method in a Multiphase PM Machine for No-Fault and Open-Circuit Fault-Tolerant Conditions, A. Akay and P. Lefley, Energies, vol. 14, no. 9, p. 2615, May 2021. http://dx.doi.org/10.3390/en14092615.
Open-Circuit Fault-Tolerant Control of Multi-Phase PM Machines by Compensating the d-q Axes Currents, Akay, A.; Lefley, P. Energies, Vol 14, No. 1, p.192 Jan. 2021. https://doi.org/10.3390/en14010192
Design techniques for cogging torque reduction in a fractional-slot PMBLDC motor, Petkovska L. Lefley P, Cvetkovski G., COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 39(5): pp. 1041-1055, 15 Dec 2020. https:// doi/10.1108/COMPEL-01-2020-0015
Research on Torque Ripple Under Healthy and Open-Circuit Fault-Tolerant Conditions in a PM Multiphase Machine. Akay, A.; Lefley, P. CES Transactions on Electrical Machines and Systems, Vol.4, No.4, pp. 349-359. December 2020, DOI 10.30941/CESTEMS.2020.00042
Cuckoo search as a tool for optimal design of PM brushless DC motor, Cvetkovski, Petkovska, Lefley, COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering. Jan 2018.
Study of the performance characteristics of a surface permanent magnet motor at various magnetization patterns, Cvetkovski, Petkovska, Lefley, COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering. Jan 2016.
Analysis of the stator topology impact on cogging torque for surface permanent magnet motor, Lidija Petkovska, Paul Lefley, Goga Cvetkovski, COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 34 Iss: 2, pp. 456 - 474, 2015.
Optimal design of single phase permanent magnet brushless DC motor using particle swarm optimisation, Goga Cvetkovski , Lidija Petkovska , Paul Lefley, COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 33 Iss: 6, pp.1863 - 1876. November 2014.
Topological modifications in Function of cogging torque Reduction of Permanent Magnet Synchronous Motor, Cvetkovski G, Petkovska L, Lefley P, Journal of the Electrical Research Review, pp 113-116 01 Jan 2014.
Ventilator development for COVID patients:
The ventilator is currently undergoing trials for deployment in Malawi.
Formula Student - University of Leicester racing car development:
BBC One East Midlands Today programme: