Prime-mover dynamo plants – Turbogenerators
Reexamination Certificate
2002-02-15
2004-08-31
Ponomarenko, Nicholas (Department: 2834)
Prime-mover dynamo plants
Turbogenerators
Reexamination Certificate
active
06784565
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to turbogenerators, and more specifically to electrical braking systems and associated control algorithms for integrated turbogenerators. Conventional integrated turbogenerator systems can become unstable during transient operating conditions. Known techniques for enhancing stability often lead to inefficient operation. What is now needed is a technique for ensuring stable operation of integrated turbogenerators while minimizing associated inefficiencies.
SUMMARY OF THE INVENTION
In one aspect, the present invention provides an integrated turbogenerator system comprising a turbine, a compressor rotationally coupled to the turbine for rotating therewith to generate compressed air, a combustor fluidly coupled to the compressor for combusting fuel and the compressed air therein to generate exhaust gas to drive the turbine, a generator rotationally coupled to the turbine for rotating therewith to generate electric power, and an electrically resistive device connected to the generator to selectively dissipate a portion of the generated power.
In another aspect of the present invention, the compressor further comprises an air intake disposed in a preselected relationship to the resistive device to channel air over the resistive device and into the compressor. The electrically resistive device may connected to the generator to selectively dissipate a portion of the generated power as thermal energy in the air channeled into the compressor.
In a further aspect of the present invention, the turbogenerator system also comprises a controller connected to the generator and to the resistive device to selectively supply a portion of the generated power from the generator to the resistive device. The controller may supply a portion of the generated power from the generator to the resistive device in accordance with variations in a load on the generator. The controller may also control the speed of the turbine in accordance with variations in the load, and/or in accordance with a temperature of the resistive device, such as to maintain a temperature of the resistive device below a preselected value.
In yet another aspect of the invention, the controller reduces the speed of the turbine in response to a reduction in the load and supplies at least a portion of any generated power in excess of the load to the resistive device, the controller reducing the turbine speed at a rate selected to maintain a temperature of the resistive device below a preselected value.
These and other features and advantages of this invention will become further apparent from the detailed description and accompanying figures that follow. In the figures and description, numerals indicate the various features of the invention, like numerals referring to like features throughout both the drawing figures and the written description.
REFERENCES:
patent: 2864244 (1958-12-01), Prachar
patent: 2910054 (1959-10-01), Schutte
patent: 3124924 (1964-03-01), Smith
patent: 3250973 (1966-05-01), Dawson
patent: 3569809 (1971-03-01), Comer
patent: 3591844 (1971-07-01), Schonebeck
patent: 3703076 (1972-11-01), Hagemeister
patent: 3724214 (1973-04-01), Bryant
patent: 3764815 (1973-10-01), Habock et al.
patent: 3809914 (1974-05-01), Kilgora et al.
patent: 3829758 (1974-08-01), Sludtmann
patent: 3937974 (1976-02-01), Lafuze
patent: 3991357 (1976-11-01), Kaminski
patent: 4005581 (1977-02-01), Aanstad
patent: 4015187 (1977-03-01), Sasaki et al.
patent: 4039914 (1977-08-01), Steigerwald et al.
patent: 4093869 (1978-06-01), Hoffmann et al.
patent: 4119861 (1978-10-01), Gocho
patent: 4258424 (1981-03-01), Giras et al.
patent: 4265099 (1981-05-01), Johnson et al.
patent: 4292534 (1981-09-01), Diegel et al.
patent: 4340820 (1982-07-01), Meyer-Pittroff et al.
patent: 4401938 (1983-08-01), Cronin
patent: 4442385 (1984-04-01), Van Sickle
patent: 4471229 (1984-09-01), Plohn et al.
patent: 4481459 (1984-11-01), Mehl et al.
patent: 4498551 (1985-02-01), Arbisi
patent: 4551980 (1985-11-01), Bronicki
patent: 4560364 (1985-12-01), Cohen
patent: 4565957 (1986-01-01), Gary et al.
patent: 4684814 (1987-08-01), Radomski
patent: 4709318 (1987-11-01), Gephart et al.
patent: 4719550 (1988-01-01), Powell et al.
patent: 4730397 (1988-03-01), Weiford et al.
patent: 4754607 (1988-07-01), Mackay
patent: 4757686 (1988-07-01), Kawamura et al.
patent: 4772802 (1988-09-01), Glennon et al.
patent: 4786852 (1988-11-01), Cook
patent: 4802882 (1989-02-01), Heidrich
patent: 4830412 (1989-05-01), Raad et al.
patent: 4833887 (1989-05-01), Kawamura et al.
patent: 4841216 (1989-06-01), Okada et al.
patent: 4862009 (1989-08-01), King
patent: 4883973 (1989-11-01), Lakey et al.
patent: 4908565 (1990-03-01), Cook et al.
patent: 4939441 (1990-07-01), Dhyanchand
patent: 4955199 (1990-09-01), Kawamura
patent: 4967096 (1990-10-01), Diemer et al.
patent: 4968926 (1990-11-01), Dhyanchand
patent: 4982569 (1991-01-01), Bronicki
patent: 5013929 (1991-05-01), Dhyanchand
patent: 5015941 (1991-05-01), Dhyanchand
patent: 5029062 (1991-07-01), Capel
patent: 5038566 (1991-08-01), Hara
patent: 5055764 (1991-10-01), Rozman et al.
patent: 5057763 (1991-10-01), Torii et al.
patent: 5068590 (1991-11-01), Glennon et al.
patent: 5088286 (1992-02-01), Muraji
patent: 5097195 (1992-03-01), Raad et al.
patent: 5115183 (1992-05-01), Kyoukane et al.
patent: 5158504 (1992-10-01), Stocco
patent: 5191520 (1993-03-01), Eckersley
patent: 5214371 (1993-05-01), Naidu
patent: 5237260 (1993-08-01), Takakado et al.
patent: 5250890 (1993-10-01), Tanamachi et al.
patent: 5252860 (1993-10-01), McCarty et al.
patent: 5260637 (1993-11-01), Pizzi
patent: 5281905 (1994-01-01), Dhyanchand et al.
patent: 5291106 (1994-03-01), Murty et al.
patent: 5309081 (1994-05-01), Shah et al.
patent: 5325043 (1994-06-01), Parro
patent: 5345154 (1994-09-01), King
patent: 5363032 (1994-11-01), Hanson et al.
patent: 5364309 (1994-11-01), Heidrich et al.
patent: 5373195 (1994-12-01), De Doncker et al.
patent: 5381081 (1995-01-01), Radun
patent: 5387859 (1995-02-01), Murugan et al.
patent: 5404092 (1995-04-01), Gegner
patent: 5406797 (1995-04-01), Kawamura
patent: 5428275 (1995-06-01), Carr et al.
patent: 5430362 (1995-07-01), Carr et al.
patent: 5477091 (1995-12-01), Fiorina et al.
patent: 5488286 (1996-01-01), Rozman et al.
patent: 5495162 (1996-02-01), Rozman et al.
patent: 5495163 (1996-02-01), Rozman et al.
patent: 5510696 (1996-04-01), Naidu et al.
patent: 5512811 (1996-04-01), Latos et al.
patent: 5544484 (1996-08-01), Voss et al.
patent: 5545090 (1996-08-01), Kirschey
patent: 5546742 (1996-08-01), Shekhawat et al.
patent: 5550410 (1996-08-01), Titus
patent: 5550455 (1996-08-01), Baker
patent: 5559421 (1996-09-01), Miyakawa
patent: 5563802 (1996-10-01), Plahn et al.
patent: 5568023 (1996-10-01), Grayer et al.
patent: 5572108 (1996-11-01), Windes
patent: 5581168 (1996-12-01), Rozman et al.
patent: 5587647 (1996-12-01), Bansal et al.
patent: 5594322 (1997-01-01), Rozman et al.
patent: 5637987 (1997-06-01), Fattic et al.
patent: 5646458 (1997-07-01), Bowyer et al.
patent: 5656915 (1997-08-01), Eaves
patent: 5743227 (1998-04-01), Jacquet et al.
patent: 5767637 (1998-06-01), Lansberry
patent: 5789881 (1998-08-01), Egami et al.
patent: 5799484 (1998-09-01), Nims
patent: 5819524 (1998-10-01), Bosley et al.
patent: 5847522 (1998-12-01), Barba
patent: 5903116 (1999-05-01), Geis et al.
patent: 5905346 (1999-05-01), Yamada et al.
patent: 5929537 (1999-07-01), Glennon
patent: 5936312 (1999-08-01), Koide et al.
patent: 5939794 (1999-08-01), Sakai et al.
patent: 5946086 (1999-08-01), Bruce
patent: 5982645 (1999-11-01), Levran et al.
patent: 5998976 (1999-12-01), Steffan
patent: 6005297 (1999-12-01), Sasaki et al.
patent: 6020713 (2000-02-01), Geis et al.
patent: 6023135 (2000-02-01), Gilbreth et al.
patent: 6031294 (2000-02-01), Geis et al.
patent: 6051951 (2000-04-01), Arai et al.
patent: 6054776 (2000-04-01), Sumi
patent: 6064122 (2000-05-01), McConnell
patent: 6087734 (2000-07-01), Maeda et al.
patent: 6107775 (2000-08-01), Rice et al.
patent: 6147414 (2000-11-01), McConnell et al.
patent: 6153942 (
Dickey Brian
Pont Guillermo
Wall Simon
Addison Karen
Capstone Turbine Corporation
Ponomarenko Nicholas
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