Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1997-11-28
2000-02-08
Ip, Paul
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 318439, H02K 2300
Patent
active
06023136&
ABSTRACT:
An electric motor (101) is driven with a sequence of drive pulses (V.sub.151, V.sub.153, V.sub.155) applied to its coils (131-135). The drive pulse widths are computed over a series of time periods (T.sub.DRIVE) by a pulse generator (119) to form envelopes approximating the phase voltages (VE.sub.151, VE.sub.153, VE.sub.155) of the coils to produce sinusoidal coil currents (I.sub.131, I.sub.133, I.sub.135). A sensing circuit (137, 123) monitors the phase of the coil current with respect to phase voltage to compute a representative control signal (CONTROL). The phase has one polarity when the motor is delivering power from a battery to a load and the opposite polarity when power is delivered from the load to the battery. When the direction of transferred power changes, the control signal changes and the pulse generator switches on-the-fly to another sequence of drive pulses.
REFERENCES:
patent: 4291265 (1981-09-01), Kawada et al.
patent: 4314191 (1982-02-01), Kawada et al.
patent: 4727468 (1988-02-01), Maekawa
patent: 5264775 (1993-11-01), Namuduri et al.
patent: 5309079 (1994-05-01), Takada
patent: 5317243 (1994-05-01), Cameron
patent: 5334917 (1994-08-01), Lind
patent: 5350988 (1994-09-01), Le
patent: 5463299 (1995-10-01), Futami et al.
patent: 5486743 (1996-01-01), Nagai
patent: 5491622 (1996-02-01), Carosa
patent: 5572097 (1996-11-01), Cameron
patent: 5631999 (1997-05-01), Dinsmore
"The Microprocessor Based Modifised Space Vector Control Of The Matrix Converter", E.M. Chekhet et al., Institute of Electrodynamics of the Unkrainian National Academy of Sciences, Kiev, Ukraine.
"Power Losses For Space Vector Modulation Techniques", Perruchoud et al., 1996 IEEE, 0-7803-3292-X/96, pp. 167-173.
"Space Vector Fourier Analysis Of SVM Inverters In The Overmodulation Range", s. Bolognani et al., IEEE, 0-7803-2795-0, pp. 319-324.
"Space Vector Modulated matrix Converter With Minimized Number Of Switchings And a Feedforward Compensation Of Input Voltage Unbalance", P. Nielsen et al, IEEE, 0-7803-2795, pp. 833-839.
"A Novel Digital Control For Active Power Filter", E. H. Song et al., IEEE, 0-7803-0582-5/92, pp. 1168-1173.
P. Pinewski, EDN Products Edition, "Understanding Space Vector Modulation", Mar. 7, 1996, pp. 45-46.
G. Ledwich, IEEE Transactions on Power Electronics, "Current Source Inverter Modulation", vol. 6, No. 4, Oct. 1991, pp. 618-623.
S. Fukuda et al., IEEE Transactions on Power Electronics, "PWM Technique for Inverter with Sinusoidal Output Current", vol. 5, No. 1, Jan. 1990, pp. 54-61.
Ip Paul
Martinez Anthony M.
Motorola Inc.
LandOfFree
Adaptive motor control circuit and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive motor control circuit and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive motor control circuit and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1683585