System having a variable frequency power distribution bus for driving a variable speed motor
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United States of America Patent
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Sep 24, 2013
Grant Date -
Oct 20, 2011
app pub date -
Jun 27, 2011
filing date -
Jan 17, 2008
priority date (Note) -
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Abstract
A system and method for supplying power to a variable speed motor for rotating a shaft may include generating an A/C output having a variable frequency corresponding to speed of a prime mover, where the speed of the prime mover is equal to or greater than a predetermined speed limit. The A/C output of the prime mover may be distributed to the variable speed motor such that the speed of the variable speed motor is varied relative to the frequency of the A/C output. The variable speed motor may be electrically disconnected from the A/C power when the speed of the prime mover being used to drive the variable speed motor is equal to or within a predetermined range of the predetermined speed limit. An alternate A/C output may be distributed to the variable speed motor after the A/C power is electrically disconnected from the variable speed motor.
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