H - Electricity – 02 – P
Patent
H - Electricity
02
P
322/29
H02P 9/14 (2006.01) H02P 9/36 (2006.01)
Patent
CA 1095985
46,365 SUPPLEMENTAL FIELD EXCITATION FOR PERMANENT MAGNET ROTOR OF PILOT EXCITER ABSTRACT OF THE DISCLOSURE In a synchronous dynamoelectric machine having a pilot exciter which energizes a brushless exciter, voltage regulation and forcing excitation are provided by a plura- lity of field coils which are disposed upon selected ones of a plurality of permanent magnets carried by the rotor of the pilot exciter. The field coils are connected together to constitute a field winding and are electrically connected to receive direct current excitation from the output of a rotating rectifier assembly through coupling means, such as a direct current regulator. In operation, the regulator is responsive to changes in the current flowing through the field winding of the synchronous dynamoelectric machine and provides a direct current output signal to the permanent magnet field winding to increase the magnetic field strength of the associated permanent magnets.
272503
Mcconnell And Fox
Westinghouse Electric Corporation
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