TY - JOUR A1 - Gauterin, Eckhard A1 - Pöschke, Florian A1 - Schulte, Horst T1 - Global Versus Local Lyapunov Approach Used in Disturbance Observer-Based Wind Turbine Control JF - Frontiers in Control Engineering N2 - This contribution presents a Lyapunov-based controller and observer design method to achieve an effective design process for more dedicated closed-loop dynamics, i.e., a maximal flexibility in an observer-based controller design with a large consistency in desired and achieved closed-loop system dynamics is intended. The proposed, pragmatic approach enhances the scope for controller and observer design by using local instead of global Lyapunov functions, beneficial for systems with widely spaced pole locations. Within this contribution, the proposed design approach is applied to the complex control design task of wind turbine control. As the mechanical loads that affect the wind turbine components are very sensitive to the closed-loop system dynamic, a maximum flexibility in the control design is necessary for an appropriate wind turbine controller performance. Therefore, the implication of the local Lyapunov approach for an effective control design in the Takagi-Sugeno framework is discussed based on the sensitivity of the closed-loop pole locations and resulting mechanical loads to a variation of the design parameters. KW - Ljapunov-Methode KW - global and local Lyapunov approach KW - Takagi–Sugeno framework KW - model-based controller and observer design KW - feedforward-feedback control KW - linear-matrix-inequality and pole region-based controller design KW - wind turbine application KW - elaborated wind turbine simulation model KW - load analysis KW - Windturbine Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:523-16716 SN - 2673-6268 VL - 3 SP - 1 EP - 23 PB - Frontiers Media S.A. ER -