Print Email Facebook Twitter Lidar-based closed-loop wake redirection in high-fidelity simulation Title Lidar-based closed-loop wake redirection in high-fidelity simulation Author Raach, Steffen (University of Stuttgart) Boersma, S. (TU Delft Team Jan-Willem van Wingerden) Doekemeijer, B.M. (TU Delft Team Jan-Willem van Wingerden) van Wingerden, J.W. (TU Delft Team Jan-Willem van Wingerden) Cheng, Po Wen (University of Stuttgart) Date 2018 Abstract This work presents the next step in realizing lidar-based closed-loop wake redirection control. Lidar-based closed-loop wake redirection aims at repositioning the wake at a desired position by yawing the wind turbine. The actual wake deflection is derived from lidar measurements and used in a closed-loop control scheme. Compared to an open-loop setting in which temporal changes are not taken into account, lidar-based closed-loop wake redirection can react on temporal disturbances. This yields a more robust control solution due to the employed closed-loop control framework. In this work, for the first time, the concept is implemented in an LES environment namely the PArallelized Large-eddy simulation Model (PALM) code. In PALM lidar measurements are simulated using a lidar model which are processed to estimate the wake position. A controller is synthesized by the usage of a the reduced order wind farm model WindFarmSimulator (WFSim). High-fidelity simulation results illustrate the controller's ability to adapt to a temporal changing crosswind disturbance in a turbulent simulation scenario. Consequently, it increases the power output of the two-turbine scenario compared to the open-loop approach. To reference this document use: http://resolver.tudelft.nl/uuid:862b3708-d00e-4dcc-8fdc-7330cd8dd122 DOI https://doi.org/10.1088/1742-6596/1037/3/032016 Publisher IOP Publishing, Bristol, UK Source Journal of Physics: Conference Series: The Science of Making Torque from Wind (TORQUE 2018), 1037 Event TORQUE 2018, 2018-06-20 → 2018-06-22, Milano, Italy Series Journal of Physics: Conference Series, 1742-6588 Part of collection Institutional Repository Document type conference paper Rights © 2018 Steffen Raach, S. Boersma, B.M. Doekemeijer, J.W. van Wingerden, Po Wen Cheng Files PDF pdf.pdf 1.04 MB Close viewer /islandora/object/uuid:862b3708-d00e-4dcc-8fdc-7330cd8dd122/datastream/OBJ/view