Simultaneous observation of wind shears and misalignments from rotor loads

The Science of Making Torque from Wind

Cacciola, S.^1 ; Bertelè, M.^1 ; Bottasso, C.L.^1,2

Wind Energy Institute, Technische Universität München, Garching bei München, Germany^1

Dipartimento di Scienze e Tecnologie Aerospaziali, Politecnico di Milano, Milano, Italy^2

关键词: Generating cause;    Horizontal shear;    Linear implicit;    Response model;    Simultaneous observation;    Turbulent wind;    Wind conditions;    Wind turbine modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/5/052002/pdf
DOI  :  10.1088/1742-6596/753/5/052002

来源: IOP

【 摘 要 】

A wind turbine is used in this paper as a sensor to measure the wind conditions at the rotor disk. In fact, as any anisotropy in the wind will lead to a specific signature in the machine response, by inverting a response model one may infer its generating cause, i.e. the wind. Control laws that exploit this knowledge can be used to enhance the performance of a wind turbine or a wind power plant. This idea is used in the present paper to formulate a linear implicit model that relates wind states and rotor loads. Simulations are run in both uniform and turbulent winds, using a high-fidelity aeroservoleastic wind turbine model. Results demonstrate the ability of the proposed observer in detecting the horizontal and vertical wind misalignments, as well as the vertical and horizontal shears.