Electric motor having controlled magnetic flux density

Details Electric motor having controlled magnetic flux density Electric motor having controlled magnetic flux density

H - Electricity

02

P

318/112, 318/70

H02P 1/44 (2006.01) H02K 17/08 (2006.01) H02P 25/04 (2006.01)

Patent

CA 1085911

ABSTRACT A motor is disclosed in which the stator winding of, for example, a squirrel cage induction motor, is connected in series with a capacitor so that the capacitor, together with the input voltage, causes the stator core to periodically switch from a nonsaturated to a saturated condition and vice- versa so that the flux density is maintained at a uniform high level. A second stator winding may be provided in paral- lel with the first stator winding and capacitor which second winding serves to provide increased starting torque and improve the overall operating characteristics of the motor. Also dis- closed is an embodiment in which an inverter is employed to permit the motor to be operated from a DC source.

257319

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