The proportion of electrical energy producers that use regenerative energy sources will increase steadily in the course of the energy transition. Onshore wind turbines are increasingly opening up inhabited areas. In this context, the acoustic emission represents an essential metric for the distance dimensioning and localization of the wind turbines...
Wind turbines are large and complex machines which operate in a highly unsteady environment. Due to the spatially and temporally stochastic nature of the wind resource, a large amount of simulation data is needed when one wants to assess the lifetime of such a machine. Both extreme events, such as storms, strong gusts or significant wind direction ...
The inspection of buildings and industrial facilities is a promising field of application for mobile robots. Multicopters are unmanned aircraft systems which can operate increasingly in an automated or even autonomous mode due to powerful sensor systems and innovative control algorithms. Thereby the systematic, safe and time-efficient inspection of...
Numerous issues in the design, construction and operation of wind turbines require vibration measurements, especially on rotor blades under operating conditions. Built-in sensors can only perform this task selectively, externally mounted sensors only with great effort and possible influence on the object to be measured. A system-independent, distan...
Large area electrical system breakdowns (blackouts) cause economic losses and restoration is a major challenge for the transmission system operator. The precise situation cannot be predicted because it is not known in advance which particular thermal power plant might manage to switch into house load operation and which neighbouring system survived...
Ausfallstatistiken belegen, dass Stillstandszeiten von Windenergieanlagen meist auf Hauptwellen und Hauptlager zurückzuführen sind. Deshalb hat das Fraunhofer-Institut überprüft, ob Hauptwellen aus Gusswerkstoffen eine funktionale und wirtschaftliche Alternative zu üblichen Vergütungsstählen darstellen.
