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

This paper deals with H∞ 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∞ 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.