GRID-CONNECTED INDUCTION MACHINE WITH CONTROLLABLE POWER FACTOR
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United States of America Patent
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Issued Date -
Dec 17, 2015
app pub date -
Jan 14, 2014
filing date -
Jan 14, 2013
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Abstract
A method and system for controlling the power factor of induction machines connected to power distribution grids are provided. In some embodiments, the method can comprise inserting an adjustable voltage source in series with one or more windings of a grid-connected induction machine such that the adjustable voltage source can be adjusted to manipulate the phase angle of the current flowing through the one or more windings relative to the phase angle of the grid voltage. The system can comprise an adjustable voltage source in series with one or more windings of a grid-connected induction machine such that the adjustable voltage source can be adjusted to manipulate the phase angle of the current flowing through the one or more windings relative to the phase angle of the grid voltage.
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