Ayman EL-Refaie, Ph.D.


Thomas and Suzanne M. Werner Endowed Chair in Secure and Sustainable Energy
Fellow of IEEE

Engineering Hall 246
(414) 288-4471
Goggle Scholar Profile

Research Interests

  • Electrical machines and drives
  • Power electronics
  • Power systems
  • Renewable energy
  • Hybrid/electrical traction applications
  • Aerospace applications
  • Oil and gas applications
  • Mining applications

Professional Preparation

Ph.D., 2005, Electrical and Computer Engineering, University of Wisconsin-Madison
M.S., 2002, Electrical and Computer Engineering, University of Wisconsin-Madison
M.S., 1998, Electrical Power and Machines, Cairo University
B.S., 1995, Electrical Power and Machines, Cairo University

Selected Recent Publications

P. B. Reddy, K. Grace and A. EL-Refaie, "Conceptual design of sleeve rotor synchronous reluctance motor for traction applications," in IET Electric Power Applications, vol. 10, no. 5, pp. 368-374, 5 2016.

Tsarafidy Raminosoa, Ayman EL-Refaie, Di Pan, Kum Kang Huh, James Alexander, Kevin Grace, Steven Galioto, Patel Reddy and Xiaochun Shen, “Reduced Rare-Earth Flux Switching Machines for Traction Applications” in IEEE Transactions on Industry Applications, vol. 51, no. 4, pp. 2959-2971, July-Aug. 2015.

A. M. EL-Refaie et al., "Advanced High-Power-Density Interior Permanent Magnet Motor for Traction Applications," in IEEE Transactions on Industry Applications, vol. 50, no. 5, pp. 3235-3248, Sept.-Oct. 2014. (This paper was designated as an IEEE-Industry Applications Society (IAS)/Electric Machines Committee First Prize Paper)

A. M. EL-Refaie, "Motors/generators for traction/propulsion applications: A review," in IEEE Vehicular Technology Magazine, vol. 8, no. 1, pp. 90-99, March 2013.

A.M. EL-Refaie, Manoj Shah, J.P. Alexander, S. Galitoto, Kum-Kang Huh, W.D. Gerstler, “Rotor End Losses in Multi-Phase Fractional-Slot Concentrated-Winding Permanent Magnet Synchronous Machines”, IEEE Transactions on Industry Applications, vol.47, no.5, pp.2066-2074, Sept.-Oct. 2011

A. M. EL-Refaie, "Fractional-Slot Concentrated-Windings Synchronous Permanent Magnet Machines: Opportunities and Challenges," in IEEE Transactions on Industrial Electronics, vol. 57, no. 1, pp. 107-121, Jan. 2010.

30 issued US patents with several others pending.

Student studying on campus


Electrical engineers work on the generation, transmission and distribution of electricity and how we use it. Computer engineers design and build the hardware and software that run our global marketplace. Think about the gadgets you plug into on a daily basis. How many of them are powered by electricity or computer technology?

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