Methods for Increasing Region 2 Power Capture on a Variable-Speed Wind Turbine

[+] Author and Article Information
Kathryn E. Johnson, Lee J. Fingersh

National Renewable Energy Laboratory, 1617 Cole Boulevard, MS 3811, Golden, CO 80401-3393

Mark J. Balas

Aerospace Engineering, University of Colorado, 429 UCB, Boulder, CO 80309e-mail: mark.balas@colorado.edu

Lucy Y. Pao

Electrical Engineering, University of Colorado, 425 UCB, Boulder, CO 80309e-mail: pao@colorado.edu

J. Sol. Energy Eng 126(4), 1092-1100 (Nov 18, 2004) (9 pages) doi:10.1115/1.1792653 History: Received January 20, 2004; Revised June 24, 2004; Online November 18, 2004
Copyright © 2004 by ASME
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Grahic Jump Location
Cp vs. TSR and pitch for Controls Advanced Research Turbine (CART)
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CART Cp vs. TSR and cubic function
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Sub-optimal operation due to inaccurate Cp-TSR curve
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Optimum torque control gain vs. turbulence intensity
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Improved power capture with OTR control
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Fractional average power vs. normalized M
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Simulation results with constant wind input
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Simulation results with measured wind data as input
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Adaptations of M on the CART vs. time
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Grid power vs. equivalent wind speed for standard and adaptive control: (a) 10-minute averages; (b) binned data with error bars




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