Innovative methods for determining damping for realistic service life predictions of new wind turbines

SysDamp

In SysDamp, various experimental and numerical methods are pursued with the aim of developing a strategy for future prototypes, enabling the determination of damping parameters from field measurements to be transferred to the design process of newly developed systems.

The damping of the entire system is to be identified and evaluated using innovative artificial excitation methods, including the use of pitch actuators and multi-shaker inertial excitation, as well as classical ambient excitation from wind and microseismic activity, employing different evaluation algorithms and by different users. The objectives of SysDamp are listed as follows:

  • Generation of measurement data using sensors already installed in DFWind-2 at OPUS-1 in the WiValdi research wind park to determine the modal damping of the entire system using artificial excitation mechanisms in different operating modes.
  • Application of a multi-shaker inertial excitation system to selectively excite vibration-relevant modes from the nacelle area of the wind turbine.
  • Generation of measurement data using sensors already installed in DFWind-2 at OPUS-1 during operation under selectively controlled operating modes, some of which may also be in the off-design state.
  • Method development for determining the damping values of the tower and blade modes of the entire wind energy system from measurement and simulation data using accelerated fully automated approximation algorithms in the time and frequency domains.
  • Validation of the aeroelastic simulation of the wind energy system with the damping parameters identified from field tests in the Simpack simulation environment.
  • Alignment of the damping between measurement and simulation with increased model quality and prediction accuracy.
  • Determination of the influence of uncertain damping parameters through sensitivity analysis.
  • Industrialization of the most suitable method for determining damping parameters for the Simpack calculation environment.

Lead institute

Participating institutes

Type of project

Research project Third-party funded project

Other partners

WRD Wobben Research and Development GmbH, SPEKTRA Schwingungstechnik und Akustik GmbH Dresden, Leibniz Universität Hannover

Funding organisations

Bundesministerium für Wirtschaft und Klimaschutz (BMWK) over Projektträger Jülich (PTJ)