Modeling for Wind Farm Control A THESIS SUBMITTED TO THE FACULTY OF THE GRADUATE SCHOOL OF THE UNIVERSITY OF MINNESOTA BY Jennifer Annoni IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE
نویسنده
چکیده
Wind turbines are typically operated to maximize their own performance without considering the impact of wake effects on nearby turbines. There is the potential to increase total power and reduce structural loads by properly coordinating the individual turbines in a wind farm. The effective design and analysis of such coordinated controllers requires turbine wake models of sufficient accuracy but low computational complexity. First, we formulate a coordinated control problem for a two-turbine array. Next, we review several simulation tools that range from low-fidelity, quasi-static models to high-fidelity, computational fluid dynamic models. These tools are compared by evaluating the power, loads, and flow characteristics for the coordinated two-turbine array. The results highlight the advantages and disadvantages of existing wake models for design and analysis of coordinated wind farm controllers. Finally, a dynamic medium fidelity wake model is constructed and compared to experimental results obtained from LiDAR wake measurements of the Clipper Turbine in UMore Park, Rosemount, MN.
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