Robust ℋ∞ Dynamic Output Feedback Control Synthesis with Pole Placement Constraints for Offshore Wind Turbine Systems

Abstract EN

The problem of robust ℋ∞ dynamic output feedback control design with pole placement constraints is studied for a linear parameter-varying model of a floating wind turbine.

A nonlinear model is obtained and linearized using the FAST software developed for wind turbines.

The main contributions of this paper are threefold.

Firstly, a family of linear models are represented based on an affine parameter-varying model structure for a wind turbine system.

Secondly, the bounded parameter-varying parameters are removed using upper bounded inequalities in the control design process.

Thirdly, the control problem is formulated in terms of linear matrix inequalities (LMIs).

The simulation results show a comparison between controller design based on a constant linear model and a controller design for the linear parameter-varying model.

The results show the effectiveness of our proposed design technique.