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Prof. Zi-Qiang Zhu Department of Electronic and Electrical Engineering
Fellow of Royal Academy of Engineering, FIEEE, FIET, FCSEE
The University of Sheffield
Sheffield, U.K.
Email: z.q.zhu@sheffield.ac.uk
Subject: Magnetic Gearing and Parasitic Effects in Fractional-Slot and Vernier PM Machines Abstract: Permanent magnet (PM) machines exhibit high torque density and efficiency. While integer-slot interior PM machines with overlapping windings have been extensively employed in electric vehicles, fractional-slot PM machines are now widely used in servo systems, robots, and household appliances, etc., and Vernier PM machines are being intensive researched. This keynote speech will focus on the recent developments in fractional-slot and Vernier PM machines. Their field modulation and magnetic gearing effects in torque production will be discussed. Parasitic effects, such as voltage spikes and unipolar end flux leakage, as well as losses and noise and vibration, will be analysed. |
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Biography: Professor Z.Q. Zhu is the Head of the Electrical Machines and Drives Research Group at the University of Sheffield, UK, Royal Academy of Engineering / Siemens Research Chair Professor, and Founding Director of several industrial research centres, including Siemens and Midea. His current major research interests include design and control of permanent magnet machines and drives for applications ranging from electrified transportation through household appliances to renewable energy. He is a Fellow of Royal Academy of Engineering, IEEE, IET, and CSEE, and the Editor-in-Chief of IET EPA. He is the recipient of the 2021 IEEE Nikola Tesla Technical Field Award and the 2019 IEEE Industry Application Society Outstanding Achievement Award. |
