Impact of Inerter in Vibrational Control in Floating Offshore Wind Turbines

Resumen

This paper presents initial results in the study on the effects of inerter implementation on the reduction in the oscillatory behaviour in the floating offshore wind turbine. FOWTS are subjected to extreme excitations that are modelled to represent the system’s dynamic loading such as wind and waves, consequence of the geographical location of the structure. The system is analyzed by means of a MATLAB model and classical control strategies such as tuned massdamper (TMD) system. The inerter is a physical device where the relative acceleration between its endpoints is proportional to the applied force. This article studies the response of a FOWT model with structural controller TMDI (tuned massdamper- inerter) implemented in the nacelle. This work concludes that the presence of an inerter significantly reduces the amplitude of the system’s oscillation and its return to the undisturbed state is faster than in the case of the TMD. These results are seeing to agree with other research findings and are discussed against the current state-of-art in the field of vibrational control. The need of the optimisation of the device along with significance of the tuning of the inertance parameter are briefly discussed.