H∞ static output-feedback control design with constrained information for offshore wind turbine system

This paper deals with H-infinity static output-feedback control design with constrained information for offshore wind turbines. Constrained information indicates that a special zero-nonzero structure is imposed on the static output-feedback gain matrix. A practical use of such an approach is to design a decentralized controller for a wind turbine. This will also benefit the controller in such a way that it is more tolerant to sensor failure. Furthermore, the model under consideration is obtained by using the wind turbine simulation software FAST. Sufficient conditions to design an H-infinity controller are given in terms of Linear Matrix Inequalities (LMIs). Simulation results are given to illustrate the effectiveness of the proposed methodology for different cases of the control gain structures. (C) 2013 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.