Investigator: Lucy Y. Pao
Sponsor: Department of Energy / National Renewable Energy Laboratory
Project Duration: January 2012 - January 2013
Project Title: Lidar-Based Control of Wind Turbines
Investigator: Lucy Y. Pao
Advisors: Alan Wright,
K. E. Johnson, and Bonnie Jonkman
Project Duration: October 2011 - December 2013
Project Title: An Innovative Approach to the Design and Control
of Wind Farms
Investigators:
Jason R. Marden
and Lucy Y. Pao
Sponsor:
Center for Research and Education in Wind
Project Duration: August 2011 - May 2013
Project Title: Development and Evaluation of Advanced Feedforward
Controls for Wind Turbines
Investigator: Lucy Y. Pao
Sponsor:
Department of Energy / National Renewable
Energy Laboratory
Project Duration: January 2011 - January 2013
Project Title: Feasibility Study of Control of Novel Active Coating
Materials for Preventing Icing on Wind Turbine Blades
Investigators: Lucy Y. Pao and
Robert R. McLeod
Sponsor:
Center for Research and Education in Wind
Project Duration: August 2010 - July 2012
Project Title: Lidar-Based Control of Wind Turbines: Feasibility Study
Investigators: Lucy Y. Pao and
K. E. Johnson
Advisors: Alan Wright, Rod Frehlich, Bonnie Jonkman, and Neil Kelley
Project Duration: July 2009 - July 2011
Project Title: Advanced Controls for Wind Turbines
Investigator: Lucy Y. Pao
Sponsor:
Department of Energy / National Renewable
Energy Laboratory
Project Duration: January 2009 - July 2011
National Renewable Energy Laboratory Technical Reports:
J. H. Laks, F. Dunne, and L. Y. Pao,
"Feasibility Studies
on Disturbance Feedforward Techniques to Improve Load Mitigation Performance
in Wind Turbines," NREL/SR-5000-48598, Dec. 2010.
F. Dunne, E. Simley, and L. Y. Pao,
"LIDAR Wind Speed
Measurement Analysis and Feedforward Blade Pitch for Load Mitigation
in Wind Turbines," NREL/SR-5000-52098, Oct. 2011.
Project Title: Design of Lidar, Data Processing, and Control
Algorithms for Optimal Wind Farm Performance
Investigators:
Rod G. Frehlich
and Lucy Y. Pao
Sponsor:
CU/NREL Energy Initiative
Project Duration: June 2007 - December 2008
Awards and Honors:
Recent Publications:
E. Simley was a lecturer at the
Summer School in Remote
Sensing for Wind Energy, Boulder, CO, June 2012.
Chinese Control and Decision Conference
Distinguished Lecture on "Control of Wind Turbines: Accomplishments and Challenges"
(Thursday, May 24, 2012).
ASME
International Mechanical Engineering Congress and Exposition Plenary on "Control
of Wind Turbines: Accomplishments and Challenges" (Monday, November 14, 2011).
Visiting Scholar at the
National Renewable Energy Laboratory's
National Wind Technology Center,
January 2009 - August 2009
A. Buckspan,
J. Aho,
P. Fleming, Y. Jeong, and L. Pao, "Combining Droop Curve Concepts
with Control Systems for Wind Turbine Active Power Control,"
Proc. IEEE Symp. Power Electronics and Machines in Wind Applications,
Denver, CO, 8 pages, July 2012. Also published as a
NREL report.
J. Aho, A. Buckspan, J. Laks,
P. Fleming, Y. Jeong, F. Dunne, M. Churchfield, L. Pao, and K. Johnson, "A
Tutorial of Wind Turbine Control for Supporting Grid Frequency through Active
Power Control," Proc. American Control Conf., Montreal, Canada,
pp. 3120-3131, June 2012.
E. Simley, L. Y. Pao, and E. G. Patton.
"Simulation of LIDAR Wind Speed Measurements for Wind Turbine Control Applications in an
Evolving LES Wind Field," Proc. Int. Symp. Adv. Boundary-Layer Remote Sensing (ISARS),
Boulder, CO, 4 pages, June 2012.
E. Simley, L. Y. Pao, N. Kelley, B. Jonkman, and R. Frehlich.
"LIDAR Wind Speed Measurements of Evolving Wind Fields,"
Proc. AIAA Aerospace Sciences Meeting, Nashville, TN, 19 pages, Jan. 2012.
S. Shajiee, P. Wagner, L. Y. Pao, and
R. R. McLeod.
"Development of Novel Ice Sensing and Active De-icing Method for Wind Turbines,"
Proc. AIAA Aerospace Sciences Meeting, Nashville, TN, 15 pages, Jan. 2012.
J. R. Marden,
S. D. Ruben,
and L. Y. Pao.
"Surveying Game Theoretic Approaches for Wind Farm Optimization,"
Proc. AIAA Aerospace Sciences Meeting, Nashville, TN, 10 pages,
Jan. 2012.
J. Laks and L. Y. Pao.
"LIDAR-Enabled Global Set-point Scheduling for Model Predictive Control
of Wind Turbines,"
Proc. AIAA Aerospace Sciences Meeting, Nashville, TN, 18 pages,
Jan. 2012.
F. Dunne,
D. Schlipf, L. Y. Pao, A. D. Wright, B. Jonkman, N. Kelley, and
E. Simley.
"Comparison of Two Independent Lidar-Based Pitch Control Designs,"
Proc. AIAA Aerospace Sciences Meeting, Nashville, TN, 19 pages,
Jan. 2012.
J. Laks, L. Y. Pao, and A. Alleyne.
"Comparison of Wind Turbine Operating Transitions using Iterative Learning
Control," Proc. American Control Conf.,
San Francisco, CA, pp. 4312-4319, June 2011.
J. Laks, L. Y. Pao, A. D. Wright, N. Kelley, and B. Jonkman.
"The Use of Preview Wind Measurements for Blade Pitch Control,"
IFAC J. Mechatronics, 21(4): 668-681, June 2011.
F. Dunne, L. Y. Pao,
A. D. Wright, B. Jonkman, and N. Kelley.
"Adding Feedforward Blade Pitch Control to Standard Feedback Controllers
for Load Mitigation in Wind Turbines,"
IFAC J. Mechatronics, 21(4): 682-690, June 2011.
L. Y. Pao and
K. E. Johnson,
"Control of Wind Turbines: Approaches, Challenges, and Recent Developments,"
IEEE Control Systems Magazine, 31(2): 44-62, April 2011.
E. Simley, L. Y. Pao, R. Frehlich, B. Jonkman, and N. Kelley.
"Analysis of Wind Speed Measurements Using Continuous Wave LIDAR for Wind Turbine
Control," Proc. AIAA Aerospace Sciences Meeting, Orlando, FL, 16 pages,
Jan. 2011.
J. Laks, L. Y. Pao, E. Simley, A. D. Wright, N. Kelley, and B. Jonkman.
"Model Predictive Control Using Preview Measurements from LIDAR,"
Proc. AIAA Aerospace Sciences Meeting, Orlando, FL, 20 pages, Jan. 2011.
F. Dunne,
L. Y. Pao, A. D. Wright, B. Jonkman, N. Kelley, and E. Simley.
"Adding Feedforward Blade Pitch Control for Load Mitigation in Wind Turbines:
Non-Causal Series Expansion, Preview Control, and Optimized FIR Filter Methods,"
Proc. AIAA Aerospace Sciences Meeting, Orlando, FL, 17 pages, Jan. 2011.
J. Laks, L. Y. Pao, A. D. Wright, N. Kelley, and B. Jonkman.
"Blade Pitch Control with Preview Wind Measurements,"
Proc. AIAA Aerospace Sciences Meeting, Orlando, FL, 24 pages, Jan. 2010.
F. Dunne, L. Y. Pao, A. D. Wright, B. Jonkman, and N. Kelley.
"Combining Standard Feedback Controllers with Feedforward Blade Pitch
Control for Load Mitigation in Wind Turbines,"
Proc. AIAA Aerospace Sciences Meeting, Orlando, FL, 18 pages, Jan. 2010.
L. Y. Pao and
K. E. Johnson.
"A Tutorial
on the Dynamics and Control of Wind Turbines and Wind Farms,"
Proc. American Control Conf., St. Louis, MO, pp. 2076-2089, June 2009.
ACC09
Presentation File (PDF file)
J. Laks, L. Y. Pao, and A. Wright.
"Control
of Wind Turbines: Past, Present, and Future,"
Proc. American Control Conf., St. Louis, MO, pp. 2096-2103, June 2009.
ACC09
Presentation File
(PPS file (free viewer available
here))
J. H. Laks, L. Y. Pao, and A. Wright.
"Combined Feedforward/Feedback
Control of Wind Turbines to Reduce Blade Flap Bending Moments,"
Proc. AIAA Aerospace Sciences Meeting, Orlando, FL, 16 pages, Jan. 2009.
K. E. Johnson,
L. Y. Pao, M. J. Balas, and L. J. Fingersh.
"Control
of Variable Speed Wind Turbines: Standard and Adaptive
Techniques for Maximizing Energy Capture,"
IEEE Control Systems Magazine, 26(3): 70-81, June 2006.
K. E. Johnson, L. J. Fingersh, L. Y. Pao, and M. J. Balas.
"Adaptive Torque Control of Variable Speed Wind Turbines
for Increased Region 2 Energy Capture," Proc. ASME
Wind Energy Symposium, Reno, NV, Jan. 2005.
K. E. Johnson, L. Y. Pao, M. J. Balas, V. Kulkarni,
and L. J. Fingersh.
"Stability Analysis of an Adaptive Torque Controller for Variable
Speed Wind Turbines," Proc. IEEE Conf. Decision and Control,
Paradise Island, Bahamas, pp. 4087-4094, Dec. 2004.
K. E. Johnson, L. Fingersh, M. Balas, and L. Y. Pao.
"Methods
for Increasing Region 2 Power Capture on a Variable Speed
HAWT," ASME J. Solar Energy Engineering, 126(4): 1092-1100,
Nov. 2004.
K. E. Johnson, L. J. Fingersh, M. J. Balas, and L. Y. Pao.
"Methods for Increasing Region 2
Power Capture on a Variable Speed HAWT,"
Proc. Wind Energy Symposium, Reno, NV, pp. 103-113, Jan. 2004.