Blade-pitch-angle control device and wind power generator

Details Blade-pitch-angle control device and wind power generator Blade-pitch-angle control device and wind power generator

2004-09-09

2008-11-18

Nguyen, Ninh H (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With control means responsive to non-cyclic condition...

With electrical means comparing and reducing error related...

C416S040000, C416S061000

Reexamination Certificate

active

07452185

ABSTRACT:
A blade-pitch-angle control device includes a memory unit in which predetermined parameters that affect the load fluctuation of blades, azimuth angles, and pitch-angle command values are stored in association with each other; an azimuth-angle detecting unit that detects the azimuth angle of each of the blades; a parameter-detecting unit that detects the predetermined parameters; a command-value receiving unit that receives pitch-angle command values for each of the blades from the memory unit, the pitch-angle command values being selected on the basis of the azimuth angle of each blade detected by the azimuth-angle detecting unit and the predetermined parameters detected by the parameter-detecting unit; and a pitch-angle-control command-value generating unit that generates pitch-angle-control command values for individually controlling the pitch-angle of each blade on the basis of the pitch-angle command values and a common-pitch-angle command value.

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