Linear parameter varying (LPV) control of a three-bladed horizontal-axis wind turbine in partial and full load conditions using FAST code is presented. The multivariable LPV controller is designed for a lumped model of the wind turbine with five degrees-of-freedom consisting blades, drive-train and the tower. The controller is scheduled in real-time based on the mean wind speed. The objective is to minimize the H∞ performance index from the wind turbulence to the controlled output vector. The closed-loop responses of the LPV controller are compared with a traditional PI-scheduled controller in the FAST/Simulink environment for the NREL 5MW baseline wind turbine. Compared to the PI-scheduled controller, the LPV design reduced the transient loads in switching between partial to full load regions of the operation. The fluctuations of the generator speed and torque are decreased resulting in a smoother power generation. The wind turbine structural loads in terms of blade root flap-wise bending moments and tower fore-aft bending moment are mitigated in different loading conditions.
- Dynamic Systems and Control Division
Wind Turbine Linear Parameter Varying Control Using Fast Code
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Shirazi, FA, Grigoriadis, KM, & Viassolo, D. "Wind Turbine Linear Parameter Varying Control Using Fast Code." Proceedings of the ASME 2012 5th Annual Dynamic Systems and Control Conference joint with the JSME 2012 11th Motion and Vibration Conference. Volume 2: Legged Locomotion; Mechatronic Systems; Mechatronics; Mechatronics for Aquatic Environments; MEMS Control; Model Predictive Control; Modeling and Model-Based Control of Advanced IC Engines; Modeling and Simulation; Multi-Agent and Cooperative Systems; Musculoskeletal Dynamic Systems; Nano Systems; Nonlinear Systems; Nonlinear Systems and Control; Optimal Control; Pattern Recognition and Intelligent Systems; Power and Renewable Energy Systems; Powertrain Systems. Fort Lauderdale, Florida, USA. October 17–19, 2012. pp. 771-778. ASME. https://doi.org/10.1115/DSCC2012-MOVIC2012-8558
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