Improved aerodynamic and structural mechanical load prediction on rotor blades of wind turbines and their application in online load estimation

The project aims to describe the loads, occurred on the rotor during operation of modern wind turbines, in their generation (aerodynamics) and transmission (structural dynamics) qualitatively and quantitatively more precisely. For this purpose, the number of model exogenous parameters has to be reduced in all components of the modeling approach. In addition, it has to be ensured that the desired model reduction does not lead to a disproportionately increase in the computational effort. Thus, small and medium-sized enterprises are enabled to access a more accurate load prediction and more efficient design environment.

On the part of RWTH Aachen University, the Institute of Aerodynamics (AIA), the Institute of Automatic Control(IRT) and the Institute of Structural Mechanics and Lightweight Design (SLA) are involved in the VAeroWindproject.

Within the project, the stress and deformationdistributions will be carried out on the basis of parametric structural models of a benchmark rotor blade. Thus, an improved real-time load estimation, which can be used, for example, in a load-reducing control system or a condition monitoring system, can be enabled by the use of parametric rotor blade models.

Furthermore, an improved aerodynamic load calculation will be used for a more efficient design of the blade structure. Both aspects lead to a reduction of the safety factors commonly used in the design of wind turbines and cost saving.


Das IGF-Vorhaben 36 EWN der Forschungsvereinigung Deutsche Forschungsvereinigung für Meß-, Regelungs- und Systemtechnik e.V. - DFMRS, Linzer Straße 13, 28359 Bremen wurde über die AiF im Rahmen des Programms zur Förderung der industriellen Gemeinschaftsforschung (IGF) vom Bundesministerium für Wirtschaft und Energie aufgrund eines Beschlusses des Deutschen Bundestages gefördert.