Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1996-09-30
1998-08-04
Ip, Paul
Electricity: motive power systems
Switched reluctance motor commutation control
318701, 318138, 318439, H02P 800, H02P 602
Patent
active
057898839
ABSTRACT:
A method and apparatus for exciting and controlling a switched reluctance motor having pulse duration modulated current provided to the windings of the motor. A start signal determined by a rotor position sensor, charges a capacitor. The capacitor is discharged according to an error signal that indicates the difference between a desired magnitude of a parameter, such as torque or speed, and the actual magnitude. A comparator puts out a pulse having a duration which is the same as the time that the capacitor has a charge. The pulse from the comparator turns on a switch connected to respective windings of the motor and provides a current pulse that has a duration equivalent to that of the pulse from the comparator. This sequence is repeated for all of the windings of the motor so as to maintain its speed or torque at the desired magnitude.
REFERENCES:
patent: 4239217 (1980-12-01), Horst
patent: 4595865 (1986-06-01), Jahns
patent: 4777419 (1988-10-01), Obradovic
patent: 4896089 (1990-01-01), Kliman et al.
patent: 5075610 (1991-12-01), Harris
patent: 5115181 (1992-05-01), Sood
patent: 5140243 (1992-08-01), Lyons et al.
patent: 5140244 (1992-08-01), Lyons et al.
patent: 5166591 (1992-11-01), Stephens et al.
patent: 5196775 (1993-03-01), Harris et al.
patent: 5373206 (1994-12-01), Lim
patent: 5386162 (1995-01-01), Horst
patent: 5446539 (1995-08-01), Horst
patent: 5530333 (1996-06-01), Turner
patent: 5548196 (1996-08-01), Lim
patent: 5563488 (1996-10-01), Stephenson et al.
patent: 5627444 (1997-05-01), Fulks
Honeywell Inc.
Ip Paul
Shudy Jr. John G.
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