Electricity: single generator systems – With flywheels or massive moving parts
Patent
1984-12-19
1986-10-14
Salce, Patrick R.
Electricity: single generator systems
With flywheels or massive moving parts
323906, 322DIG5, H02K 702
Patent
active
046175075
ABSTRACT:
A self-regulating energy storage system including: an a.c. motor/generator including a rotor; a flywheel attached to the motor/generator; a device for monitoring the position of the motor/generator rotor; an element for resolving current to and from the motor/generator; a pulse width modulated bidirectional inverter interconnecting the motor/generator with a power supply bus to be regulated; a summing circuit for determining differences between a reference voltage and the voltage in the power supply bus to be regulated; and a pulse width modulation switch control responsive to the comparator circuit, to the device for monitoring, and to the element for resolving, for actuating the inverter to increase pulse width as a function of increase in the difference between the reference voltage and the voltage on the bus, and to increase current to the motor/generator in the motor direction when the bus voltage exceeds the reference voltage and to increase current from the motor/generator in the generator direction when the reference voltage exceeds the bus voltage.
REFERENCES:
patent: 4468569 (1984-09-01), Norris
Bliamptis Tim E.
Downer James R.
Eisenhaure David B.
Hendrie Susan D.
Oberbeck George A.
Iandiorio Joseph S.
Noonan William E.
Salce Patrick R.
Simpson Mark D.
The Charles Stark Draper Laboratory Inc.
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