Dynamoelectric machines brushless supplemental excitation system

Details Dynamoelectric machines brushless supplemental excitation system Dynamoelectric machines brushless supplemental excitation system

1980-01-09

1982-06-22

Hickey, Robert J.

Electricity: single generator systems

Generator control

With excitation winding and/or circuit control

322 72, 322 86, 322 87, H02P 914, H02P 930

Patent

active

043364861

ABSTRACT:
For a dynamoelectric machine, excitation power is supplied by a main exciter having two field windings. A first field winding is driven by a pilot exciter which supplies base excitation (small signal) for the main exciter. Forcing excitation (large signal) is supplied by the second field winding which is driven by an external, supplemental power source. The main exciter can thus provide the appropriate excitation for both normal and transient operating conditions. In addition, by switching the controlled rectifier elements associated with the supplemental power source, the second field winding is also capable of providing fast de-excitation for the main exciter.

REFERENCES:
patent: 2608680 (1952-08-01), Shankle et al.
patent: 2752554 (1956-06-01), Abell
patent: 2888621 (1959-05-01), McLane
patent: 3072840 (1963-01-01), Sones
patent: 3863137 (1975-01-01), Mishima et al.
patent: 4032835 (1977-06-01), Finnell et al.

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