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ECN publicatie:
Titel:
Control for damping the fatigue relevant deformation modes of offshore wind turbines
 
Auteur(s):
Engelen, T.G. van; Schaak, P.; Lindenburg, C.
 
Gepubliceerd door: Publicatie datum:
ECN Windenergie 1-6-2003
 
ECN publicatienummer: Publicatie type:
ECN-RX--03-037 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
4 Download PDF  (353kB)

Gepresenteerd op: European Wind Energy Conference 2003, Madrid, Spain, 16-19 juni 2003.

Samenvatting:
Damping of two deformation modes by one control loop has been demonstratedby simulation for a typical 3 MW wind turbine. The vibration levels of 2nd and 3rd in-plane model modes were significantly reduced. Calculations with the aerodynamic code PHATAS showed an overall in-plane fatigue load reduction by ca 40%. The control loop includes a Kalman filter that estimates state variables for the modal modes. The states are obtained from band filtered generator speed measurements only. The state feedback to the generator torque is based on pole placement techniques.


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