In this work a method is described for the stability analysis of wind turbines. The method uses input-output time histories obtained by suitable excitations of the system. Next, a periodic reduced model is identified from the recorded response, and used for a stability analysis conducted according to Floquet theory. Since only input-output sequences are used, the approach is model-independent in the sense that it is applicable to wind turbine simulation models of arbitrary complexity. The paper describes a formulation capable of handling turbulent disturbances, and verifies its performance with the help of high fidelity numerical simulations.
Floquet Stability Analysis of Wind Turbines Using Input-Output Models
BOTTASSO, CARLO LUIGI;CACCIOLA, STEFANO;RIVA, RICCARDO
2014-01-01
Abstract
In this work a method is described for the stability analysis of wind turbines. The method uses input-output time histories obtained by suitable excitations of the system. Next, a periodic reduced model is identified from the recorded response, and used for a stability analysis conducted according to Floquet theory. Since only input-output sequences are used, the approach is model-independent in the sense that it is applicable to wind turbine simulation models of arbitrary complexity. The paper describes a formulation capable of handling turbulent disturbances, and verifies its performance with the help of high fidelity numerical simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.