Variable frequency drive for a motor-generator/alternator set
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United States of America Patent
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Apr 10, 1984
Grant Date -
N/A
app pub date -
Feb 10, 1983
filing date -
Feb 10, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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