Robust controller design of DFIG wind turbine

In this paper, a doubly fed induction generator wind turbine is presented to account for uncertainties in operation. The controllers generally used for these wind turbine systems cannot guarantee stable performance. Therefore, robust control schemes are proposed, which ensure that below the rated speed, the power output is maximized, and above the rated speed, the power output is regulated. The designed controllers guarantee uniform ultimate boundedness. By setting the bound values of the set where the uncertainties are laid or moved, the controllers facilitate the accessing of the control target. To verify the proposed control schemes, stability analysis and simulation results are presented. © ICROS 2017.