Uncertainty Quantification for Robust Control of Wind Turbines using Sliding Mode Observer

The Science of Making Torque from Wind

Schulte, Horst^1

Control Engineering Group, University of Applied Sciences Berlin (HTW), Berlin, Germany^1

关键词: Control of wind turbines;    Equivalent output injection;    Four degree of freedom;    Parameter uncertainty;    Quantification methods;    Sliding mode observers;    Sliding mode techniques;    Uncertainty quantifications;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/5/052030/pdf
DOI  :  10.1088/1742-6596/753/5/052030

来源: IOP

【 摘 要 】

A new quantification method of uncertain models for robust wind turbine control using sliding-mode techniques is presented with the objective to improve active load mitigation. This approach is based on the so-called equivalent output injection signal, which corresponds to the average behavior of the discontinuous switching term, establishing and maintaining a motion on a so-called sliding surface. The injection signal is directly evaluated to obtain estimates of the uncertainty bounds of external disturbances and parameter uncertainties. The applicability of the proposed method is illustrated by the quantification of a four degree-of-freedom model of the NREL 5MW reference turbine containing uncertainties.