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FP5

STABCON Informe resumido

Project ID: ENK5-CT-2002-00627
Financiado con arreglo a: FP5-EESD
País: Netherlands

Aeroelastic stability tool for wind turbines using system identification, AerID

AerId is a linear system identification tool used to build a model and perform the stability analysis of a dynamic system, in the present case a wind turbine, treated as a black box.

It is based on a linear least square algorithm to determine a state space representation for the system to be identified. The system is considered as autonomous, i.e. no inputs are applied, and every state must be known and measurable. Coleman transformations are used to transform the rotor degrees of freedom into the non-rotating frame.

AerId can perform both time-varying, periodic, model identification and time-constant model identification. Due to the small differences between the constant and time-varying model identification results for a wind turbine, the identification and the stability analysis are performed using the time-constant model for the wind turbine.

Reported by

DELFT UNIVERSITY OF TECHNOLOGY, AEROSPACE ENGINEERING
KLUYVERWEG 1
2629HS DELFT
Netherlands
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