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TECHNICAL PAPERS

Correcting Inflow Measurements From Wind Turbines Using a Lifting-Surface Code

[+] Author and Article Information
J. Whale

Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, 306 Talbot Laboratory, 104 South Wright Street, Urbana, IL 61801-2935

C. J. Fisichella

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 306 Talbot Laboratory, 104 South Wright Street, Urbana, IL 61801-2935

M. S. Selig

Department of Aeronautical and Astronautical Engineering, University of Illinois at Urbana-Champaign, 306 Talbot Laboratory, 104 South Wright Street, Urbana, IL 61801-2935e-mail: m-selig@uiuc.edu

J. Sol. Energy Eng 122(4), 196-202 (Sep 01, 2000) (7 pages) doi:10.1115/1.1331287 History: Received April 01, 1999; Revised September 01, 2000
Copyright © 2000 by ASME
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References

Montgomerie, B., 1994, “The Influence of 3D Effects in Lift and Drag on the Performance of a Stalled Horizontal Axis Wind Turbine Rotor,” Proceedings, 8th IEA Symposiums on Aerodynamics of Wind Turbines, Lyngby, Denmark, pp. 101–107.
Wood,  D. H., 1991, “A Three Dimensional Analysis of Stall Delay on a Horizontal Axis Wind Turbine,” J. Wind Eng. Ind. Aero., 37, pp. 1–14.
Madsen, H. A., 1991, “Aerodynamics of a Horizontal-Axis Wind Turbine in Natural Conditions,” Riso̸ Report M-2903, Riso̸ National Laboratory, Roskilde, Denmark.
Bruining, A., and van Rooij, R.P.J.O.M., 1997, “Two- and Three-Dimensional Aerodynamic Performance of the NLF(1)-0416 Airfoil on a Wind Turbine Blade,” Proceedings, 11th IEA Symposium on Aerodynamics of Wind Turbines, Petten, Netherlands, pp. 59–76.
Snel, H., Houwink, R., Bosschers, J., Piers, W. J., van Bussel, G., and Bruining., A., 1993, “Sectional Prediction of 3-D Effects For Stalled Flow on Rotating Blades and Comparison with Measurements,” Proceedings, 1993 European Community Wind Energy Conference, Travemünde, Germany, pp. 395–399.
Brand, A. J., Dekker, J. W. M., de Groot, C. M., and Späth, M., 1997, “Field Rotor Aerodynamics: The Rotating Case,” Proceedings, 16th ASME Wind Energy Symposium, Reno, NV, pp. 319–327.
Butterfield, C. P., Musial, W. P., and Simms, D. A., 1992, “Combined Experimental Phase I, Final Report,” NREL Report TP-257-4655, National Renewable Energy Laboratories, Golden, CO.
Kocurek, D., 1987, “Lifting Surface Performance Analysis for Horizontal Axis Wind Turbines,” NREL Subcontract Report STR-217-3163, National Renewable Energy Laboratories, Golden, CO.
Whale, J., and Selig, M. S., 1999, “Lifting-Surface Inflow Correction Method (LSIM), User’s Manual,” University of Illinois at Urbana-Champaign, Dept. of Aeronautical and Astronautical Engineering, AAE 99-11, UILU ENG 99-05-11, Urbana, IL.
Whale, J., and Selig, M. S., 1999, “LSIM: A Lifting-Surface Inflow Correction Method,” University of Illinois at Urbana-Champaign, Dept. of Aeronautical and Astronautical Engineering, AAE 99-12, UILU ENG 99-05-12, Urbana, IL.
Schepers, J. G., 1997, “Final Report of IEA Annex XIV: Field Rotor Aerodynamics,” ECN Report ECN-C-97-027, Netherlands Energy Research Foundation, Petten, Netherlands.
Simms, D. A., Robinson, M. S., Hand, M. M., and Fingersh, L. J., 1996, “Characterization and Comparison of Baseline Aerodynamic Performance of Optimally-Twisted versus Non-Twisted Blades,” 1996 Proceedings, ASME Energy-Source Technology Conference, Houston, TX, pp. 143–148.
Du, Z., and Selig, M. S., 1998, “3-D Stall-Delay Model for Horizontal Axis Wind Turbine Performance Prediction,” Proceedings, 17th ASME Wind Energy Symposium, Reno, NV, pp. 9–19.
Björck, A., Ronsten, G., and Montgomerie, B., 1995, “Aerodynamic Section Characteristics of a Rotating and Non-rotating 2.375m Wind Turbine Blade,” FFA Report TN 1995-03, The Aeronautical Research Institute of Sweden, Bromma, Sweden.

Figures

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Angle of attack α and local flow angle β for a blade section
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Difference between 2D and 3D flow physics at a blade section
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Expected trends for a 3D inflow correction
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Flowchart of LSIM procedure
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Hypothetical performance data based on Phase III CER values: (a) Normal force, (b) Tangential force
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LSIM inflow correction curves for CER hypothetical lift data: (a) 30% span, (b) 47% span, (c) 68% span, (d) 98% span
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LSIM corrected performance curves for CER hypothetical lift data: (a) 30% span, (b) 47% span, (c) 68% span, (d) 98% span
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Comparison of 3D LSIM with 2D methods: (a) 30% span, (b) 47% span, (c) 63% span, (d) 80% span
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Illustration of the LSIM angle-range reduction problem: (a) Trends in β–α, (b) Range of α input to LSIM

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