Prime-mover dynamo plants – Electric control – Fluid-current motors
Patent
1984-04-09
1986-04-22
Shoop, Jr., William M.
Prime-mover dynamo plants
Electric control
Fluid-current motors
290 55, F03D 704
Patent
active
045844860
ABSTRACT:
A control system for adjusting the pitch of variable-pitch angle blades in a wind turbine for generating electric power maintains the control signal for the variable-pitch angle blades above a minimum level representing the minimum desired angle of the variable-pitch blades. The control system includes a subtractor for generating a difference signal; a device for generating from the difference signal a first blade control signal greater than a minimum level, from a device for generating a second blade control signal greater than a minimum level, from first blade control signal and the difference signal; a device for generating a third blade control signal for adjusting the pitch of variable-pitch angle blades, from second blade control signal and power rate signal. All devices include limiters which limit their respective output signals to a minimum level representing a preset minimum blade angle.
REFERENCES:
patent: 2866933 (1958-12-01), Bond et al.
patent: 3201675 (1965-08-01), Curran et al.
patent: 3758838 (1973-09-01), Wright
patent: 4160170 (1979-07-01), Harner et al.
patent: 4161658 (1979-07-01), Patrick
patent: 4189648 (1980-02-01), Harner
patent: 4193005 (1980-03-01), Kos et al.
patent: 4339666 (1982-07-01), Patrick et al.
patent: 4349315 (1982-09-01), Ducker
Duncanson Jr. W. E.
Shoop Jr. William M.
The Boeing Company
LandOfFree
Blade pitch control of a wind turbine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blade pitch control of a wind turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blade pitch control of a wind turbine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1917222