AC exciter for VSCF starter/generator

Details AC exciter for VSCF starter/generator AC exciter for VSCF starter/generator

1989-11-27

1992-03-17

Hickey, R. J.

Electricity: single generator systems

With physical starting and/or stopping of the generator

290 38R, 290 46, F02N 1108, H02P 904

Patent

active

050971956

ABSTRACT:
The problem of providing field power to a stationary main generator field winding (22) is addressed such that it can be used as a motor. A dynamoelectric machine (12) is operated as both a generator and a motor. An AC-AC exciter (14) is controlled by an exciter inverter (42) to operate as an exciter generator in a generate mode, and as a rotary transformer in a start mode. The exciter inverter (42) supplies low frequency power to an exciter field winding (28) in a generate mode of operation, and supplies high frequency AC power to the generator field winding (28) in the start mode of operation.

REFERENCES:
patent: 3809914 (1974-05-01), Kilgore
patent: 3908161 (1975-09-01), Messenger
patent: 4467267 (1984-08-01), Hucker et al.
patent: 4743777 (1988-05-01), Shilling et al.
patent: 4786852 (1988-11-01), Cook
patent: 4947100 (1990-08-01), Dyanchand et al.
patent: 4948209 (1990-08-01), Baker et al.
patent: 4968926 (1990-11-01), Dyanchand
patent: 4992721 (1991-02-01), Latos

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