SysDamp

Current wind turbine rotors have increased flexibility due to longer and slender rotor blades, which leads to higher bending and an increased tendency to vibrate at high wind speeds. These vibrations induce dynamic loads that influence the service life of the turbine, which is why precise knowledge of the damping and system responses is crucial for the design and service life analysis of the wind turbines in order to limit the amplitudes of the vibrations and accelerate their decay.

The WiValdi research wind farm in Krummendeich, with its comprehensive instrumentation of acceleration and strain sensors for wind turbines, offers an excellent basis for determining damping from experimental data without having to integrate additional complex sensor technology into an existing turbine.

In SysDamp, different methods are investigated with the aim of developing a strategy for future prototypes, determining damping parameters from field measurements and transferring them to new systems to be developed. There are currently no guidelines for this. The attenuation of the overall system is to be identified and evaluated using innovative artificial excitation as well as classic ambient excitation from wind and microseismics with different identification algorithms and by different users. By comparing the numerical models, the damping models for the design of new wind turbines can be raised to a new level. This enables more precise load analyses.