Wind turbine generator and blade pitch angle control method...

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F03D 7/02 (2006.01) F03D 7/04 (2006.01) F03D 11/00 (2006.01)

Patent

CA 2703174

The present invention provides a wind turbine generator and a blade pitch angle control method thereof in which an aerodynamic imbalance of a wind turbine rotor at the time of shutdown is further reduced, the maximum load of a wind turbine is further reduced, and the wind turbine generator can be reduced in weight and cost. The wind turbine generator includes a collective pitch angle controller 11 that produces a collective pitch angle demand that is common to blade pitch angles of wind turbine blades, an individual pitch angle producing unit 13 that produces an individual pitch angle demand inherent in each wind turbine blade, multipliers 21 to 23 that multiply the individual pitch angle demand by the individual pitch angle gain, an individual pitch angle gain producing unit 14, and adder 24 to 26 that add collective pitch angle demands to the output of the multipliers 21 to 23 and supply the same to pitch actuators 31 to 33 inherent in the wind turbine blades. When shutdown is performed, the individual pitch angle gain is adjusted such that a individual pitch angle gain is reduced gradually and reaches to zero by the individual pitch angle gain producing unit 14 after first set time.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Wind turbine generator and blade pitch angle control method... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wind turbine generator and blade pitch angle control method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wind turbine generator and blade pitch angle control method... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1857307

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.