H - Electricity – 02 – P
Patent
H - Electricity
02
P
318/79
H02P 1/26 (2006.01) B66B 1/30 (2006.01) H02P 21/00 (2006.01)
Patent
CA 1284349
Abstract of the Disclosure A method of controlling current in an AC motor to inhibit small torques on an unloaded motor output shaft and to improve buildup of steady state operating flux in a rotor includes supplying current to the stator windings through a plurality of semiconductor switches, operating the semicon- ductor switches to supply a plurality of gradually increasing currents to the stator windings over a time interval corres- ponding to approximately one rotor time constant to bring flux in the rotor up to approximately 10% of a steady-state operating flux in the rotor, operating the semiconductor switches to supply a current that is the maximum current rated for pulsed operation of the semiconductor switches for a time interval over which a product of current and time is sufficient to produce steady-state operating flux in the rotor, and then reducing the stator current to a level for maintaining steady state operating flux in the rotor. A microelectronic apparatus for carrying out the method is also disclosed.
533737
Allen-Bradley Company Inc.
Shapiro Cohen
LandOfFree
Flux profile control for startup of an induction motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flux profile control for startup of an induction motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flux profile control for startup of an induction motor will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1326150