Variable reluctance generator

Electricity: single generator systems – Automatic control of generator or driving means – Power factor or phase relationships

Reexamination Certificate

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Details

C322S029000, C322S032000, C318S701000

Reexamination Certificate

active

07151359

ABSTRACT:
A variable reluctance generator has phase windings and a bias winding. By controlling the excitation produced by the bias winding, the speed of the machine or the DC link, a power converter using only diodes can supply power to a DC bus. A method of operating a variable reluctance machine as a generator, the machine having at least one phase winding, includes creating a bias flux linking the or at least one phase winding, and limiting the phase voltage to a magnitude below that otherwise induced in the phase winding by the bias flux.

REFERENCES:
patent: 2445991 (1948-07-01), Bedford
patent: 2453187 (1948-11-01), Blain
patent: 2792547 (1957-05-01), Horton et al.
patent: 2920307 (1960-01-01), Chernosky
patent: 2957111 (1960-10-01), Schaeve et al.
patent: 3184628 (1965-05-01), Hammerstrom et al.
patent: 3372323 (1968-03-01), Guyeska
patent: 3483463 (1969-12-01), Smith
patent: 3510699 (1970-05-01), Fredrickson
patent: 3740629 (1973-06-01), Kohlhagen
patent: 3760205 (1973-09-01), Imris
patent: 3783358 (1974-01-01), Krauer
patent: 3992641 (1976-11-01), Heinrich et al.
patent: 4025960 (1977-05-01), Gray et al.
patent: 4077678 (1978-03-01), Studer et al.
patent: 4096624 (1978-06-01), Gray et al.
patent: 4135119 (1979-01-01), Brosens
patent: 4347543 (1982-08-01), Frister et al.
patent: 4400655 (1983-08-01), Curtiss et al.
patent: 4417194 (1983-11-01), Curtiss et al.
patent: 4469997 (1984-09-01), Curtiss et al.
patent: 4670696 (1987-06-01), Byrne et al.
patent: 4835408 (1989-05-01), Ray et al.
patent: 4943760 (1990-07-01), Byrne et al.
patent: 4959605 (1990-09-01), Vaidya et al.
patent: 4975608 (1990-12-01), Aspden
patent: 5039932 (1991-08-01), Belanger et al.
patent: 5168203 (1992-12-01), Tepavcevic
patent: 5451821 (1995-09-01), Teter et al.
patent: 5731649 (1998-03-01), Caamano
patent: 5780997 (1998-07-01), Sutrina et al.
patent: 5814914 (1998-09-01), Caamano
patent: 5903082 (1999-05-01), Caamano
patent: 5982070 (1999-11-01), Caamano
patent: 5986378 (1999-11-01), Caamano
patent: 6049197 (2000-04-01), Caamano
patent: 6137256 (2000-10-01), Morris
patent: 6154013 (2000-11-01), Caamano
patent: 6259233 (2001-07-01), Caamano
patent: 6407466 (2002-06-01), Caamano
patent: 6566764 (2003-05-01), Rebsdorf et al.
patent: 6664680 (2003-12-01), Gabrys
patent: 6700258 (2004-03-01), McMullen et al.
patent: 6856038 (2005-02-01), Rebsdorf et al.
patent: 6856040 (2005-02-01), Feddersen et al.
patent: 6933625 (2005-08-01), Feddersen et al.
patent: 7015595 (2006-03-01), Feddersen et al.
patent: 7015672 (2006-03-01), Laurent et al.
patent: 2004/0008003 (2004-01-01), Turner
patent: 2004/0178774 (2004-09-01), Randall et al.
patent: 2005/0135651 (2005-06-01), Hakansson
patent: 0 537 761 (1993-04-01), None
patent: 0 564 067 (1993-10-01), None
patent: 2167910 (1986-06-01), None
Lang, et al., “Power Optimal Excitation of Variable Reluctance Motors,” Electric Machines and Electromechanics: An International Quarterly, 2:123-135, 1978.
Stephenson, et al., “The Characteristics, Design and Applications of Switched Reluctance Motors and Drives,” PCIM '93, Nürnberg, Germany, Conference & Exhibition, Jun. 21-24, 1993, pp. 1-68.
Radun, Arthur, “Generating with the Switched Reluctance Motor,” IEEE 9thApplied Power Electronics Conference, Orlando, FL, 1994, pp. 41-47.
Pulle, D.W.J., “Performance of Split-Coil Switched Reluctance Drive,” IEE Proceedings, Vo. 135, Pt. B, No. 6, Nov. 1998, pp. 318-323.
Torrey, David A., “Switched Reluctance Generators and Their Control,” IEEE Transactions on Industrial Electronics, vol. 49, No. 1, Feb. 2002.
Copy of full search report for European Patent Application No. EP04250399, mailed on Jun. 7, 2004.

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