Comparison of the performance of two torsional vibration dampers considering model uncertainties and parameter variation

Abstract

Two torsional vibration dampers were designed and their damping performance was compared when subjected to parameter variation and turbine model uncertainty. The dampers were tested on a wind turbine model developed in Simulink®. The conventional vibration damper based on a band pass filter (BPF) approach showed deterioration in performance when subjected to parameter variation and compromised when model uncertainty was included. On the other hand the model based vibration damper showed a superior performance. Simulation results show that the model based vibration damper might be used to eliminate re-tuning procedures of BPF based vibration dampers during commissioning of wind turbines and to ensure good performance during turbine operation.