Researcher: Thomas Lipo

Areas of Research Expertise
  • Applied physics
  • Computing
  • Information
  • Power
  • Power electronics
  • Adjustable speed drives
  • AC motor drive systems
  • Electric machines
Web Site Thomas Lipo's Department of Electrical and Computer Engineering Website
Curriculum Vitae (CV) Thomas Lipo's CV
Current/Active Funding
  • WARF, 2008-2020, Laboratory share of royalty and licensing income - professor Thomas A Lipo
Issued Patent(s)
  • 9,379,657 - Unity power factor induction machine, issued June 2016.
  • 9,093,942 - Assymetrical power inverter, issued July 2015.
  • 8,648,562 - Single power supply dual converter open-winding machine drive, issued February 2014.
  • 8,450,963 - Brushless synchronous machine utilizing third harmonic excitation, issued May 2013.
  • 7,608,965 - Field controlled axial flux permanent magnet electrical machine, issued October 2009.
USPTO Published Applications
  • 20150171784 - Unity power factor induction machine, published June 2015.
  • 20150069875 - Double air gap, spoke type vernier machine, published March 2015.
  • 20120086381 - Brushless synchronous machine utilizing third harmonic excitation, published April 2012.
  • 20120032622 - Single power supply dual converter open-winding machine drive, published February 2012.
  • 20070046124 - Field controlled axial flux permanent magnet electrical machine, published March 2007.
Recent Publication(s)
  • A novel dual-stator axial-flux spoke-type permanent magnet Vernier machine for direct-drive applications. Zhao F, Lipo TA, Kwon B-I. IEEE Transactions on Magnetics. 2014 Nov;50(11):1-4. doi: 10.1109/TMAG.2014.2329861.

  • An improved direct decoupled power control of doubly fed induction machine without rotor position sensor and with robustness to parameter variation. Amiri N, Madani SM, Lipo TA, Zarchi HA. IEEE Transactions on Energy Conversion. 2012 Dec;27(4):873-884. doi: 10.1109/TEC.2012.2209889.

  • Comparison of IGBT cycling capabilities for different AC/AC topologies. Wei L, Lipo TA, Lukaszewski RA. IEEE Transactions on industry Applications. 2011 Jan;46(6):2475-2483. doi: 10.1109/TIA.2010.2070478.

  • New control method including state observer of voltage unbalance for grid voltage-source converters. Lee K, Jahns TM, Lipo TA, Blasko C. IEEE Transactions on industrial Electronics. 2010 Jul;57(6):2054-2065. doi: 10.1109/TIE.2009.2033488.

View Thomas Lipo's publications at Google Scholar.
Recent Artistic Works
  • Eaton Corporation, Kevin Lee
  • University of Zagreb, Faculty of Electrical Engineering and Computing, Department of Electrical Machines, Drives and Automation, Damir Zarko
  • ABB Switzerland, Yongsug Suh
  • Technical Center TC-G 855, Caterpillar Inc., Metin Aydin
  • Ancra International
Research Tools
Research Facilities
E-mail Address [email protected]
Phone Number 608-262-0287
Current University UW–Madison
Department Electrical and Computer Engineering
Title Emeritus Professor
Other Appointments
Address Line 1 1540 Engineering Hall
Address Line 2 1415 Engineering Drive
City Madison
State WI
Zip Code 53706
Bachelor's Degree B.S., Marquette University, Electrical Engineering, 1962
Master's Degree M.S., Marquette University, Electrical Engineering, 1964
PhD Ph.D., UW–Madison, 1968
Other Degrees
Technologies Available for Licensing Adjustable Speed Drive For Single-Phase Induction Motors

Dual Bridge Matrix Converter for AC to AC Power Conversion

Dual-Rotor, Radial-Flux, Toroidally-Wound, Permanent Magnet Machine with High Efficiency and High Torque Density

Field Controlled Axial Flux Permanent Magnet Electrical Machine

Efficient Boost Rectifier Employing Half-Rated Semiconductor Devices

Induction Motor Wastes Less Power

Brushless Synchronous Motor Utilizing Third Harmonic Excitation for Power Transfer to Rotor

Vernier Motor Uses Less Rare Earth Materials