The design of nonlinear observers for wind turbine dynamic state and parameter estimation
Bastian Ritter, Axel Schild, M. Feldt, Ulrich Konigorski · Journal of Physics Conference Series · 2016
This contribution addresses the dynamic state and parameter estimation problem which arises with more advanced wind turbine controllers. These control devices need precise information about the system's current state to outperform conventional industrial controllers effectively. First, the necessity of a profound scientific treatment on nonlinear observers for wind turbine application is highlighted. Secondly, the full estimation problem is introduced and the variety of nonlinear filters is discussed. Finally, a tailored observer architecture is proposed and estimation results of an illustrative application example from a complex simulation set-up are presented.