Electricity: motive power systems – Generator-fed motor systems having generator control
Patent
1983-02-10
1984-04-10
Rubinson, G. Z.
Electricity: motive power systems
Generator-fed motor systems having generator control
318150, 318157, 318146, 318246, 318151, 318152, 310113, 322 29, 322 32, H02P 766
Patent
active
044423853
ABSTRACT:
A variable frequency drive for a motor-generator/alternator set which is used to supply electrical power to computer or data processing equipment. Power failures in commercially supplied power results in aberrations and erroneous computations in computers and data processing equipment. An induction motor is used to drive a generator/alternator. The induction motor is driven below the synchronous speed of the generator/alternator and a variable speed drive increases the velocity supplied to the generator/alternator, preferably to a point above its synchronous speed. Therefore, when there is a commercial power failure, the generator/alternator remains within a desired frequency range for a longer period of time than a comparable generator/alternator driven at synchronous speed.
REFERENCES:
patent: 827331 (1906-07-01), Tirrill
patent: 919302 (1909-04-01), Armstrong
patent: 1092797 (1914-04-01), Mavor
patent: 1150019 (1915-08-01), Dyer et al.
patent: 1531853 (1925-03-01), Fisher
patent: 2778960 (1957-01-01), Anderson
patent: 3609426 (1971-09-01), Gaul
patent: 3639820 (1972-02-01), Stemmler
Matthews Richard P.
Paul Shik L.
Power Distribution Inc.
Rubinson G. Z.
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