Ac-excited generator/motor apparatus

Details Ac-excited generator/motor apparatus Ac-excited generator/motor apparatus

H - Electricity

02

P

318/105

H02P 5/52 (2006.01)

Patent

CA 1293015

ABSTRACT OF THE DISCLOSURE An AC-excited generator/motor apparatus comprising an AC-excited generator/motor having an armature mounting thereon an armature winding connected to an AC power system and a rotor mounting thereon an exciting winding excited by an AC current; exciting means for supplying a controlled AC exciting current to the exciting winding; means for calculating a real slip frequency based on a difference between the phase of an armature voltage appearing on the armature winding and the rotational phase of the rotor; and means for con- trolling the exciting current supplied to the exciting winding from the exciting means in response to a devia- tion of the real slip frequency from a predetermined allowable range of slip frequencies so as to restore the real slip frequency within the allowable range of slip frequencies.

592975

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