Rotary kinetic fluid motors or pumps – Method of operation
Reexamination Certificate
2005-01-11
2005-01-11
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Method of operation
Reexamination Certificate
active
06840734
ABSTRACT:
A method of controlling the speed of rotation of a turbine, the turbine comprising a rotor, the method comprising the steps of measuring or estimating power or torque related to the energy production of the turbine, processing the measured or estimated power or torque so as to obtain a corresponding rotational speed, comparing the obtained rotational speed to a first predefined threshold value and to a second predefined threshold value, the second predefined threshold value being larger than the first predefined threshold value, and controlling the speed of rotation of the rotor according to the obtained rotational speed, so as to obtain a predetermined energy production from the turbine, and in such a way that in case the obtained rotational speed does not exceed the first predefined threshold value, the predetermined energy production from the turbine is optimal, in case the obtained rotational speed exceeds the first predefined threshold value, but does not exceed the second predefined threshold value, the predetermined energy production from the turbine is optimal, in case the obtained rotational speed exceeds the second predefined threshold value, the speed of rotation of the rotor of the turbine is reduced in a predefined manner to a value corresponding to the first predefined threshold value.
REFERENCES:
patent: 4150301 (1979-04-01), Bergey, Jr.
patent: 4193005 (1980-03-01), Kos et al.
patent: 4329117 (1982-05-01), Doman
patent: 4426192 (1984-01-01), Chertok et al.
patent: 4427897 (1984-01-01), Migliori
patent: 4584486 (1986-04-01), Quynn
patent: 4700081 (1987-10-01), Kos et al.
patent: 5155375 (1992-10-01), Holley
patent: 19532409 (1997-03-01), None
patent: 19636591 (1998-03-01), None
patent: 2206930 (1989-01-01), None
M. Ermis, H.B. Ertan, E. Akpinar, and F. Ülgüt; “Autonomous Wind Energy Conversion System With a Simple Controller For Maximum-Power Transfer”; IEE Preceedings-B, pps. 421-428; Sep. 1992.
E. Muljadi, K. Pierce and P. Migliore, “Control Strategy For Variable-Speed Stall-Regulated Wind Turbines”; Proceedings of the American Control Conference; pps. 1710-1714; Jun. 1998.
Forskningscenter Riso
Kershteyn Igor
Look Edward K.
LandOfFree
Method of operating a 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 Method of operating a turbine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of operating a turbine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3411755