 Variable speed wind turbine control scheme using a robust wind torque estimationOscar Barambones, Jose A. Cortajarena, Isidro Calvo, Jose M. Gonzalez de Durana, Patxi Alkorta and A. Karami-Mollaee Renewable Energy, 2019, vol. 133, issue C, 354-366 Abstract: This work proposes a robust controller for a variable speed wind turbine system with a doubly feed induction generator. The controller aims at tracking the optimal speed of the wind turbine so that extracts the maximum power from the wind. Also, a robust aerodynamic torque observer is proposed in order to avoid the use of wind speed sensors. This torque observer allows to estimate the aerodynamic torque to be used by the controller in order to calculate the value of the optimal reference speed for the wind turbine. The vector control theory is applied in the present approach, and thereby the stator flux-oriented control is used for controlling the speed of the wind turbine generator. The proposed robust control law is based on sliding mode control theory, which has proved to provide good performance under system uncertainties. Keywords: Renewable energy; Wind energy; Sliding mode observer; Sliding mode control; DFIG; Lyapunov stability (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:133:y:2019:i:c:p:354-366 DOI: 10.1016/j.renene.2018.10.009 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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