Electricity: single generator systems – Automatic control of generator or driving means – Speed or frequency of generator
Patent
1980-05-30
1983-08-23
Hickey, R. J.
Electricity: single generator systems
Automatic control of generator or driving means
Speed or frequency of generator
322 23, 322 25, 322 28, 322 35, H02P 914, H02P 930
Patent
active
044006594
ABSTRACT:
The shaft of a wind turbine is connected to the rotor of a three-phase AC generator. The rotor windings, in turn, are connected to the rotor windings of a DC-energized, AC exciter via a differential frequency-converter. A frequency-detector, which monitors the output of the AC generator, is connected to the input of the frequency-converter to maintain the output of the generator at 60 Hz. A "real" power sensing circuit, connected to the output of the generator, develops a control signal which, when subtracted from a second control signal generated by a power management control circuit, maintains the power output of the generator at the maximum possible level for each particular power output from the wind turbine which drives the generator.
REFERENCES:
patent: 3683268 (1972-08-01), Obata
patent: 3758843 (1973-09-01), Ishizaki et al.
patent: 4245182 (1981-01-01), Aotsu et al.
Barron Benjamin
Rao S. Chandrasekhara
Hickey R. J.
Mapn Louis E.
Olstein E. M.
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