Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1995-06-06
1997-12-09
Wysocki, Jonathan
Electricity: motive power systems
Switched reluctance motor commutation control
318439, H02P 700
Patent
active
056964307
ABSTRACT:
A motor includes a stationary assembly and a rotatable assembly in magnetic coupling relation thereto. The stationary assembly includes a winding, the rotation of the rotatable assembly inducing a back EMF in the winding. A power supply for supplying a voltage across the winding drives a current through the winding. A back EMF sensor connected to the winding generates a back EMF signal representative of the back EMF induced in the winding during periods of time when the voltage is being supplied across the winding. An inverter connected between the power supply and the winding commutates the winding as a function of the back EMF signal, whereby the rotatable assembly rotates. A method of operating the motor and a control circuit for the motor employ the back emf induced in the winding during periods when the voltage is being applied to the winding by the power supply.
REFERENCES:
patent: 2679607 (1954-05-01), Potter
patent: 3678352 (1972-07-01), Bedford
patent: 3679953 (1972-07-01), Bedford
patent: 3740629 (1973-06-01), Kohlhagen
patent: 3818310 (1974-06-01), Smith
patent: 3824446 (1974-07-01), Forster et al.
patent: 3849718 (1974-11-01), Forster et al.
patent: 3879549 (1975-04-01), Boesel
patent: 4030005 (1977-06-01), Doeman
patent: 4167691 (1979-09-01), Sorensen et al.
patent: 4199892 (1980-04-01), Saito et al.
patent: 4360770 (1982-11-01), Ray et al.
patent: 4374347 (1983-02-01), Muller
patent: 4376261 (1983-03-01), vonder Heide et al.
patent: 4379984 (1983-04-01), Muller
patent: 4401933 (1983-08-01), Davy et al.
patent: 4499407 (1985-02-01), Macleod
patent: 4520296 (1985-05-01), Lepper et al.
patent: 4533986 (1985-08-01), Jones
patent: 4556827 (1985-12-01), Erdman
patent: 4558264 (1985-12-01), Weischedel
patent: 4563619 (1986-01-01), Davis et al.
patent: 4578623 (1986-03-01), Tsukutani et al.
patent: 4644233 (1987-02-01), Suzuki
patent: 4651079 (1987-03-01), Wills
patent: 4654566 (1987-03-01), Erdman
patent: 4673849 (1987-06-01), Sears et al.
patent: 4678974 (1987-07-01), Guastadini
patent: 4710684 (1987-12-01), Okita et al.
patent: 4733146 (1988-03-01), Hamby
patent: 4734627 (1988-03-01), Koerner
patent: 4737674 (1988-04-01), Miyao
patent: 4743815 (1988-05-01), Gee et al.
patent: 4748388 (1988-05-01), Muller
patent: 4755728 (1988-07-01), Ban
patent: 4835448 (1989-05-01), Dishner et al.
patent: 4851751 (1989-07-01), Gipson
patent: 4870332 (1989-09-01), Coghran et al.
patent: 4872123 (1989-10-01), Morita
patent: 4891537 (1990-01-01), Shiraki et al
patent: 4935861 (1990-06-01), Johnson, Jr. et al.
patent: 4937467 (1990-06-01), Tuska et al.
patent: 4972134 (1990-11-01), Getz et al.
patent: 5005115 (1991-04-01), Schauder
patent: 5012166 (1991-04-01), Ushijima et al.
patent: 5053688 (1991-10-01), Rees
patent: 5057733 (1991-10-01), Sonoda et al.
patent: 5075610 (1991-12-01), Harris
patent: 5086265 (1992-02-01), Uhlendorf
patent: 5097168 (1992-03-01), Takekoshi et al.
patent: 5376866 (1994-12-01), Erdman
patent: 5448149 (1995-09-01), Ehsani et al.
R. Itoh et al., "Single-Phase Sinusoidal Rectifier With Step-up/down Characterisitcs," Nov. 1991, IEEE Proceedings-B, vol. 138, No. 6.
Jufer, et al., "Back EMF Indirect Detection for Self-Commutation of Synchronous Motors," 1987, European Power Electronics Conference, pp. 1125-1129.
A 700-V Interface IC for Power Bridge Circuits; Schoofs and Dupont; 1990 IEEE; pp. 677-682.
Integrated Current Regulation for a Brushless ECM Drive; Jahns, Becerra and Ehsani; 1991 IEEE; pp. 118-126.
Benedict Eric R.
Erdman David M.
General Electric Company
Krisher, Jr. Ralph E.
Wysocki Jonathan
LandOfFree
Circuit, motor, and method generating a signal representing back does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuit, motor, and method generating a signal representing back, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit, motor, and method generating a signal representing back will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1610249