For the most up-to-date list of patents and publications, please visit Dr. Severson’s Google Scholar page via the button below.


  1. F. Goris, E. L. Severson, “A Review of Flywheel Energy Storage Systems for Grid Application,” IEEE Industrial Electronics Society Annual Conference (IECON), November 2018, Washington, D.C., Accepted.
  2. Y. Kang, E. L. Severson, “Optimal Design of 50kW Concentrated Winding Bearingless Motor,” IEEE Energy Conversion Congress and Exposition (ECCE), September 2018, Accepted
  3. R. Amorim Torres, E. L. Severson, “Decoupled Control for Parallel Drive No-Voltage Bearingless Motors,” IEEE Energy Conversion Congress and Exposition (ECCE), September 2018, Accepted
  4. Y. Kang, E. L. Severson, “Optimization Framework for a Large, High Speed Bearingless Permanent Magnet Motor,” International Symposium on Magnetic Bearings (ISMB), August 2018, Accepted
  5. E. L. Severson, “Bearingless Motor Technology for Industrial and Transportation Applications,” IEEE Transportation Electrification Conference and Expo (ITEC), June 2018.
  6. E. L. Severson, “Reduced Hardware Parallel Drive for No Voltage Bearingless Motors,” IEEE International Power Electronics Conference (IPEC/ECCE-Asia), May 2018, Invited Paper.



  1. E. L. Severson, R. Nilssen, T. Undeland, N. Mohan, “Design of dual purpose no voltage combined windings for bearingless motors,” IEEE Transactions on Industry Applications, Sept.-Oct 2017.
  2. E. L. Severson, N. Mohan, “Bearingless Motor System Design for Industrial Applications,” IEEE International Electric Machines and Drives Conference (IEMDC), May 2017, Miami, Florida.