Electricity: single generator systems – Reciprocating and/or oscillating-type generator
Patent
1985-08-19
1987-02-10
Hickey, R. J.
Electricity: single generator systems
Reciprocating and/or oscillating-type generator
290 1R, 310 15, 322 8, 322 93, H02P 904, H02K 3500, F02B 7100
Patent
active
046425470
ABSTRACT:
A load regulator for a linear alternator driven by a free piston Stirling engine. A substantially constant output voltage is maintained across the useful load by shunting a portion of the armature output current of the alternator through a variable energy absorbing conductance and varying that conductance in proportion to changes in the output voltage of the alternator in order to maintain a constant total armature power output. The regulator may be made more efficient by forming the armature coil as a plurality of series connected coils by one or more taps and then switching the number of series coil turns in connection to the load approximately in inverse proportion to the square root of the steady state power demand of the load so that the total armature output power is switched between discrete levels while the output voltage is maintained constant for all those levels by the variable impedance.
REFERENCES:
patent: 3063002 (1962-11-01), Phelon
patent: 3341763 (1967-09-01), Noddin
patent: 4219768 (1980-08-01), Gobaud
patent: 4403153 (1983-09-01), Vallon
patent: 4433279 (1986-02-01), Bhate
Foster Frank H.
Hickey R. J.
Sunpower, Inc.
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