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Laura Wheeler Final Thesis.pdf (2.1 MB)

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Wind Turbine Collective and Individual Pitch Control Using Quantitative Feedback Theory

Wheeler, Laura
http://rave.ohiolink.edu/etdc/view?acc_num=case149079272322693

Abstract Details

2017, Master of Sciences (Engineering), Case Western Reserve University, EECS - System and Control Engineering.
Individual pitch control is a new technique in the field of wind turbine control, used to reduce the asymmetric mechanical loads on the blades of multi-megawatt turbines. Therefore, the mechanical fatigue is reduced and the lifetime of the turbine is extended. In this work, an individual pitch controller is developed for the National Renewable Energy Laboratory’s (NREL) 5 MW reference wind turbine. The individual pitch controller works along with a collective pitch controller, designed using the Quantitative Feedback Theory Control Toolbox in Matlab. The individual and collective pitch controllers are simulated using NREL’s computer-aided engineering tool for horizontal axis wind turbines, FAST. Simulations show that the addition of the individual pitch controller reduces the loads on the tilt and yaw turbine components (the nacelle and tower) at the 1p and 3p frequencies by half, and the loads on the blades at the 2p harmonic frequency, by almost half.
Mario Garcia-Sanz, Ph.D. (Advisor)
Kenneth Loparo, Ph.D. (Committee Member)
Sree Sreenath, Ph.D. (Committee Member)
Roberto Fernández Galán, Ph.D. (Committee Member)
68 p.
Energy; Engineering
pitch control; wind turbine; quantitative feedback theory; individual pitch control; FAST

Recommended Citations

Citations

  • Wheeler, L. (2017). Wind Turbine Collective and Individual Pitch Control Using Quantitative Feedback Theory [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case149079272322693

    APA Style (7th edition)

  • Wheeler, Laura. Wind Turbine Collective and Individual Pitch Control Using Quantitative Feedback Theory . 2017. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case149079272322693.

    MLA Style (8th edition)

  • Wheeler, Laura. "Wind Turbine Collective and Individual Pitch Control Using Quantitative Feedback Theory ." Master's thesis, Case Western Reserve University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case149079272322693

    Chicago Manual of Style (17th edition)

case149079272322693
1,524
© 2017, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.