System and method of controlling the start-up of an adjustable speed motor drive based sinusoidal output power conditioner
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United States of America Patent
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Dec 23, 2008
Grant Date -
Feb 1, 2007
app pub date -
Jul 26, 2005
filing date -
Jul 26, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A motor drive for conditioning power to be delivered to a load includes a current feedback circuit that monitors current being fed to a transformer connected between the motor drive and the load. Based on the total current input to the transformer, a controller adjusts the V/Hz profile along which the motor drive operates. In this regard, the motor drive operates according to a V/Hz profile during start-up that prevents transformer saturation.
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