Electrically compensated constant speed drive with prime mover s

Details Electrically compensated constant speed drive with prime mover s Electrically compensated constant speed drive with prime mover s

1988-07-05

1989-09-19

Shoop, Jr., William M.

Prime-mover dynamo plants

Plural prime mover

Plural prime movers with fluid interconnection

322 29, F02N 1104, H02P 1100

Patent

active

048684066

ABSTRACT:
An electrically compensated constant speed drive includes a mechanical differential having first and second input shafts and an output shaft wherein a prime mover is coupled to the first input shaft, a brushless generator is coupled to the differential output shaft and includes a control permanent magnet generator (PMG) and a main generator which develops output power and a speed compensation link is coupled between the control PMG and the second differential shaft. The speed compensation link includes a dynamoelectric machine coupled to the second differential input shaft and a power converter which interconnects armature windings of the control PMG and electrical power windings of the dynamoelectric machine. A generator control unit controls the flow of power between the control PMG and the dynamoelectric machine so that the dynamoelectric machine develops compensating speed of a magnitude sufficient to maintain the output shaft of the differential at a desired speed so that the brushless generator develops constant frequency AC power. The present constant speed drive is lighter and smaller than prior electrically compensated constant speed drives.

REFERENCES:
patent: 4401938 (1983-08-01), Cronin
patent: 4481459 (1984-11-01), Mehl et al.
patent: 4572961 (1986-02-01), Borger
patent: 4636707 (1987-01-01), Law
patent: 4692671 (1987-09-01), Dishner et al.
patent: 4697090 (1987-09-01), Baker et al.
patent: 4734626 (1988-03-01), Sutrina et al.
patent: 4777376 (1988-10-01), Dishner

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