Asymptotic Tracking Control for Wind Turbines in Variable Speed Mode |
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| Wei Lin, Zongtao Lu and Wei Wei, "Asymptotic Tracking Control for Wind Turbines in Variable Speed Mode," IEEE/CAA J. Autom. Sinica, vol. 4, no. 3, pp. 569-576, July 2017. doi: 10.1109/JAS.2017.7510568 |
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| Authors: | Wei Lin Zongtao Lu Wei Wei |
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| Affiliation: | Dongguan University of Technology, Dongguan 523808, China, and also with the Department of Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, Ohio OH 44120, USA |
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| Abstract: | This paper presents a variable speed control strategy for wind turbines in order to capture maximum wind power. Wind turbines are modeled as a two-mass drive-train system with generator torque control. Based on the obtained wind turbine model, variable speed control schemes are developed. Nonlinear tracking controllers are designed to achieve asymptotic tracking for a prescribed rotor speed reference signal so as to yield maximum wind power capture. Due to the difficulty of torsional angle measurement, an observer-based control scheme that uses only rotor speed information is further developed for global asymptotic output tracking. The effectiveness of the proposed control methods is illustrated by simulation results. |
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| Keywords: | Asymptotic tracking partial-state and output feedback two-mass drive-train model variable speed control wind turbines |
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