Title:
BLADE PITCH CONTROL IN A WIND TURBINE INSTALLATION
Document Type and Number:
WIPO Patent Application WO/2010/076557
Kind Code:
A3
Abstract:
The present invention relates to a blade pitch controller for a floating wind turbine structure, wherein the floating wind turbine structure comprises a support structure supporting a rotor having a plurality of blades. The controller comprises standard blade pitch control means and active damping means. The standard blade pitch control means is arranged to control a blade pitch using a transfer function between a rotor speed error and the blade pitch. The active damping means is arranged to further control the blade pitch on the basis of a speed of a point on the wind turbine structure by converting the speed of a point on the wind turbine structure into a rotor speed error and using the same transfer function that is used in the standard blade pitch control means to convert the rotor speed error into a correction to the blade pitch.
Inventors:
SKAARE BJOERN (NO)
NIELSEN FINN GUNNAR (NO)
NIELSEN FINN GUNNAR (NO)
Application Number:
PCT/GB2009/002959
Publication Date:
April 14, 2011
Filing Date:
December 23, 2009
Export Citation:
Assignee:
STATOIL ASA (NO)
SKAARE BJOERN (NO)
NIELSEN FINN GUNNAR (NO)
JACKSON ROBERT PATRICK (GB)
SKAARE BJOERN (NO)
NIELSEN FINN GUNNAR (NO)
JACKSON ROBERT PATRICK (GB)
International Classes:
F03D7/04; F03D7/02
Domestic Patent References:
| WO2007053031A1 | 2007-05-10 |
Foreign References:
| EP2107236A1 | 2009-10-07 | |||
| US20080206051A1 | 2008-08-28 |
Attorney, Agent or Firm:
DEHNS (10 Salisbury Square, London EC4Y 8JD, GB)
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