Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1990-10-01
1993-12-21
Shoop, Jr., William M.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318802, H02P 540
Patent
active
052724298
ABSTRACT:
Methods and apparatus are provided wherein air gap flux magnitude and relative position are determined from stator voltage harmonic components and stator current in operating alternating current machines having a stator, a rotor and an air gap therebetween. Such determinations have various uses, such as for efficiency control. Various new and improved efficiency controllers are provided which utilize these measurements.
REFERENCES:
patent: 4023083 (1977-05-01), Plunkett
patent: 4112339 (1978-09-01), Lipo
patent: 4245181 (1981-01-01), Plunkett
patent: 4280085 (1981-07-01), Cutler et al.
patent: 4431957 (1984-02-01), Chausse et al.
patent: 4441064 (1984-04-01), Cutler et al.
patent: 4445080 (1984-04-01), Curtiss
patent: 4450398 (1984-05-01), Bose
patent: 4451770 (1984-05-01), Boettner et al.
patent: 4503377 (1985-03-01), Kitabayashi et al.
patent: 4573003 (1986-02-01), Lipo
patent: 4585982 (1986-04-01), Cooper et al.
patent: 4724373 (1988-02-01), Lipo
patent: 4912378 (1990-03-01), Vukosavic
"A New Method for Rotor Time Constant Tuning in Indirect Field Oriented Control," by Julio C. Moreira and Thomas A. Lipo in IEEE Power Electronics Specialists Conference, 573-580 (Oct. 1, 1989).
"Low Cost Efficiency Maximizer for an Induction Motor Drive", by Julio C. Moreira, Thomas A. Lipo and Vladimir Blasko in IEEE Industry Appl. Soc. Ann. Meeting, 426-431 (Oct. 1, 1989).
"Direct Field Orientation Control Using the Third Harmonic Component of the Stator Voltage", Julio C. Moreira and Thomas A. Lipo in Intl. Conf. on Elec. Mach. Proc., 1237-1242 (Aug. 13, 1990).
"Modeling of Saturated AC Machines Including Air Gap Flux Harmonic Components", Julio C. Moreira and Thomas A. Lipo in IEEE Industry Applns. Soc. Ann. Meeting, 37-44 (Oct. 7, 1990).
IEEE Standard 112 (The Institute of Electrical and Electronic Engineers), "Test Procedures for Polyphase Induction Motors and Generators", pp. 1-32 (1984).
Lipo Thomas A.
Moreira Julio C.
Cabeca John W.
Shoop Jr. William M.
Wisconsin Alumni Research Foundation
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