Wei Qiao

Wei Qiao 

Wei Qiao
Contact Information:
223N SEC
Lincoln: City Campus
(402) 472-9619
Personal Links:

Associate Professor
  • Ph.D., Ph.D., Georgia Institute of Technology, USA, 2008
  • M.S., Singapore-MIT Alliance, National University of Singapore, 2003
  • M.Eng., Zhejiang University, China, 2002
  • B.Eng., Zhejiang University, China, 1997

Areas of Research and Professional Interest
  • Renewable energy systems (wind, solar, etc.)
  • Smart grids
  • Microgrids
  • Stability, control, and optimization of electric power grids
  • Condition monitoring and fault diagnosis
  • Energy storage systems
  • Power electronics
  • Electric machines and drives
  • Computational intelligence for electric power and energy systems
Courses Taught

About Wei Qiao

Dr. Wei Qiao joined the Electrical Engineering Department of the University of Nebraska–Lincoln (UNL) as an assistant professor in August 2008. Currently, he holds the position of UNL Harold and Esther Edgerton Assistant Professor. He has been promoted to associate professor with tenure (early promotion and tenure) effective August 19, 2013.

Professor Qiao’s research interests cover broad areas of electric power and energy systems, including renewable energy systems (wind, solar, etc.), smart grids, microgrids, power system control and optimization, condition monitoring, fault diagnosis and prognosis, energy storage systems, power electronics, electric machines and drives, FACTS devices, and computational intelligence for electric power and energy systems. His research has been sponsored by the National Science Foundation (NSF), Department of Energy (DOE), Department of Transportation (DOT), Nebraska Center for Energy Sciences Research (NCESR), Nebraska Research Initiative (NRI), and industry.

Professor Qiao has been an Associate Editor of IET Power Electronics since April 2014, an Associate Editor of the IEEE Journal of Emerging and Selected Topics in Power Electronics since 2013, and the Chair of the Sustainable Energy Sources Technical Thrust of the IEEE Power Electronics Society (PELS) since 2009.  He was an Associate Editor of the IEEE Transactions on Industry Applications in 2010-2013 and the Chair of the Task Force on Intelligent Control for Wind Plants of the IEEE Power & Energy Society (PES) in 2009-2013.  In 2011 he established a new IEEE PES/PELS/IAS Joint Student Branch Chapter at UNL and has served as the advisor of the Chapter since then.  He was the Publications Chair of the 2013 IEEE Energy Conversion Congress and Exposition (ECCE 2013) and was a founding chair of the IEEE Symposium on Power Electronics and Machines in Wind Applications (PEMWA) in 2009.  He served as the Publications Chair of PEMWA 2014, a Technical Program Co-Chair and the Publications Chair of PEMWA 2012, and a Technical Program Co-Chair and Finance Co-Chair of PEMWA 2009.

Professor Qiao was the recipient of a 2010 National Science Foundation CAREER Award, the 2010 IEEE Industry Applications Society (IAS) Andrew W. Smith Outstanding Young Member Award, the 2012 UNL College of Engineering Faculty Research & Creative Activity Award, the 2011 University of Nebraska-Lincoln Harold and Esther Edgerton Junior Faculty Award, and the 2011 UNL College of Engineering Edgerton Innovation Award. He has also received four best paper awards from the IEEE Industry Applications Society, IEEE Power Electronics Society, and IEEE Power & Energy Society.


Current Research Projects:
  • An Online Intelligent Prognostic Health Monitoring System for Wind Turbines, DOE, $1,499,981 (plus $166,999 cost share).
  • PFI:  AIR−TT:  Self-X Smart Battery, NSF, 09/15/2014-02/29/2016, $199,915.
  • Cognitive Prediction-Enabled Online Intelligent Fault Diagnosis and Prognosis for Wind Energy Systems, NSF, 06/01/2013-05/31/2016, $359,852.
  • CAREER: Stochastic Optimization and Coordinating Control for the Next-Generation Electric Power System with Significant Wind Penetration, NSF, 08/15/2010-07/31/2015, $407,999.
  • A Roadway Wind/Solar Hybrid Power Generation and Distribution System: Toward Energy-Plus Roadways, Department of Transportation (DOT)-Federal Highway Administration (FHWA), 04/13/2010-12/31/2014, $1,118,179 (plus $394,599 cost share).
  • Intelligent Optimal Mechanical Sensorless Control of Variable-Speed Wind Energy Systems Considering System Uncertainties, NSF, 08/01/2009-07/31/2013, $214,755.
  • Online Nonintrusive Condition Monitoring and Fault Detection for Wind Turbines, Department of Energy (DOE), 11/01/2009-02/29/2012, $380,398 (plus $117,014 cost share).
  • Rotor Position/Speed Sensorless Control for Interior Permanent Magnet Synchronous Machines, Phoenix International Corporation, 04/04/2011-12/31/2012, $110,110.
  • Directed Research – Power Electronics Software, Phoenix International Corporation, 05/16/2011-04/15/2012, $41,150.
  • Optimal Participation of Intermittent Renewable Energy Sources in Competitive Electricity Markets, Nebraska Research Initiative (NRI), 07/01/2012-06/30/2014, $100,000.
  • Online Nonintrusive Wind Turbine Fault Diagnosis, Nebraska Public Power District (NPPD) through Nebraska Center for Energy Sciences Research (NCESR), 01/01/2010-06/30/2012, $139,728.
  • A Nationwide Consortium of Universities to Revitalize Electric Power Engineering Education by State-of-the-Art Laboratories, DOE (Subcontract from the University of Minnesota), 08/01/2010-07/31/2013, $25,000.
  • Online Nonintrusive Intelligent Health Management for Power Electronic Systems – A Preliminary Study, UNL Layman Award, 06/01/2012-05/31/2013, $20,000.
  • UNL College of Engineering Edgerton Innovation Award, UNL College of Engineering, $20,000.
  • Energy Storage for Future Power Grids−A Preliminary Study, UNL Research Council Faculty Seed Grant, 01/01/2009-12/31/2009, $10,000.

Selected Publications

Ph.D. Dissertation:
  • Integrated Control of Wind Farms, FACTS Devices and the Power Network Using Neural Networks and Adaptive Critic Designs, Georgia Institute of Technology, July 2008.

Book Chapters:
  1. W. Qiao, “Chapter 8: swarm intelligence for power system control and optimization,” inEvolutionary Computing for Intelligent Power System Optimization and Control, Nova Science Publishers, 2010, ISBN: 978-1-61728-031-3.
  2. W. Qiao, “Chapter 28: Power Electronics for Renewable Energy,” in The Electric Power Engineering Handbook: Power Systems, 3rd Edition, CRC Press, May 2012, ISBN: 9781439856338.

Refereed Journal Papers:
  1. S. Kahrobaee, S. Asgarpoor, and W. Qiao, “Optimum sizing of distributed generation and storage capacity in smart households,” IEEE Trans. Smart Grid, accepted for publication.
  2. Z. Zhang, W. Qiao, and Q. Hui, “An improved paradigm for energy-based hybrid control to stabilize lossless dynamical systems with applications to electric power systems,” IEEE Trans. Control Systems Technology, accepted for publication.
  3. T. Dai and W. Qiao, “Trading wind power in a competitive electricity market using stochastic programming and game theory,” IEEE Trans. Sustainable Energy, in press (available online in IEEE Xplore).
  4. Y. Zhao, W. Qiao, and L. Wu, “An adaptive quasi sliding-mode rotor position observer-based sensorless control for interior permanent magnet synchronous machines,” IEEE Trans. Power Electronics, in press (available online in IEEE Xplore).
  5. X. Gong and W. Qiao, “Bearing fault diagnosis for direct-drive wind turbines via current demodulated signals,” IEEE Trans. Industrial Electronics, vol. 60, no. 8, pp. 3419-3428, Aug. 2013.
  6. J. Zeng and W. Qiao, “Short-term solar power prediction using a support vector machine,” Renewable Energy, vol. 52, pp. 118-127, Apr. 2013.
  7. T. Kim, W. Qiao, and L. Qu, “Power electronics-enabled self-X multicell batteries: A design toward smart batteries,” IEEE Trans. Power Electronics, vol. 27, no. 11, pp. 4723-4733, Nov. 2012.
  8. X. Gong and W. Qiao, “Imbalance fault detection of direct-drive wind turbines using generator current signals,” IEEE Trans. Energy Conversion, vol. 27, no. 2, pp. 468-476, June 2012.
  9. J. Zeng and W. Qiao, “Short-term wind power prediction using a wavelet support vector machine,” IEEE Trans. Sustainable Energy, vol. 3, no. 2, pp. 255-264, Apr. 2012.
  10. W. Qiao, X. Yang, and X. Gong, “Wind speed and rotor position sensorless control for direct-drive PMG wind turbines,” IEEE Trans. Industry Applications, vol. 48, no. 1, pp. 3-11, Jan/Feb 2012.
  11. T. Kim and W. Qiao, “A hybrid battery model capable of capturing dynamic circuit characteristics and nonlinear capacity effects,” IEEE Trans. Energy Conversion, vol. 26, no. 4, pp. 1172-1180, Dec. 2011.
  12. L. Qu and W. Qiao, “Constant power control of DFIG wind turbines with supercapacitor energy storage,” IEEE Trans. Industry Applications, vol. 47, no. 1, pp. 359-367, Jan/Feb 2011.
  13. F. Li, W. Qiao, H. Sun, H. Wan, J. Wang, Y. Xia, Z. Xu, and P. Zhang, “Smart transmission grid: vision and framework,” IEEE Trans. Smart Grid, vol. 1, no. 2, pp. 168-177, Sept. 2010.
  14. J. Liang, W. Qiao, and R. G. Harley, “Feed-forward transient current control for low-voltage ride-through enhancement of DFIG wind turbines,” IEEE Trans. Energy Conversion, vol. 25, no. 3, pp. 836-843, Sept. 2010.
  15. W. Qiao, L. Qu, and R. G. Harley, “Control of IPM synchronous generator for maximum wind power generation considering magnetic saturation,” IEEE Trans. Industry Applications, vol. 45, no. 3, pp. 1095-1105, May/June 2009.
  16. W. Qiao, G. K. Vanayagamoorthy, and R. G. Harley, "Missing-sensor-fault-tolerant control for SSSC FACTS device with real-time implementation," IEEE Trans. Power Delivery, vol. 24, no. 2, pp. 740-750, Apr. 2009.
  17. W. Qiao, R. G. Harley, and G. K. Vanayagamoorthy, "Coordinated reactive power control of a large wind farm and a STATCOM using heuristic dynamic programming," IEEE Trans. Energy Conversion, vol. 24, no. 2, pp. 493-503, June 2009.
  18. W. Qiao, G. K. Venayagamoorthy, and R. G. Harley, "Real-time implementation of a STATCOM on a wind farm equipped with doubly fed induction generators," IEEE Trans. Industry Applications, vol. 45, no. 1, pp. 98-107, Jan./Feb. 2009.
  19. W. Qiao, W. Zhou, J. M. Aller, and R. G. Harley, "Wind speed estimation based sensorless output maximization control for a wind turbine driving a DFIG," IEEE Trans. Power Electronics, vol. 23, no. 3, pp. 1156-1169, May 2008.
  20. W. Qiao, R. G. Harley, and G. K. Venayagamoorthy, "Fault-tolerant optimal neurocontrol for a static synchronous series compensator connected to a power network," IEEE Trans. Industry Applications, vol. 44, no. 1, pp. 74-84, Jan./Feb. 2008.
  21. W. Qiao, R. G. Harley, and G. K. Vanayagamoorthy, "Fault-tolerant indirect adaptive neurocontrol for a static synchronous series compensator in a power network with missing sensor measurements," IEEE Trans. Neural Networks, vol. 19, no. 7, pp. 1179-1195, July 2008.
  22. W. Qiao, G. K. Venayagamoorthy, and R. G. Harley, "Optimal wide-area monitoring and nonlinear adaptive coordinating neurocontrol of a power system with wind power integration and multiple FACTS devices," Neural Networks (Elsevier), vol. 21, no. 2-3, pp. 466-475, Mar.-Apr. 2008.
  23. W. Qiao, Z. Gao, R. G. Harley, and G. K. Vanayagamoorthy, "Robust neuro-identification of nonlinear plants in electric power systems with missing sensor measurements," IFAC Journal: Engineering Applications of Artificial Intelligence (Elsevier), vol. 12, no. 4, pp. 604-618, June 2008.
  24. W. Qiao and R. G. Harley, "Indirect adaptive external neuro-control for a series capacitive reactance compensator based on a voltage source PWM converter in damping power oscillations," IEEE Trans. Industrial Electronics, vol. 54, no. 1, pp. 77-85, Feb. 2007.
  25. W. Qiao, Z. N. Chen, and K. Wu, "UWB monopole antenna with a top-hat sleeve," International Journal of Microwave and Optical Technology, vol. 1, no. 1, pp. 17-27, June 2006.

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