System and method for starting a wound rotor motor
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United States of America Patent
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Mar 31, 2009
Grant Date -
Dec 6, 2007
app pub date -
Aug 5, 2005
filing date -
Aug 5, 2005
priority date (Note) -
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Abstract
A system and method for starting and regulating a wound rotor motor (320) including a phase-controlled SCR converter (350) and a drive circuit (330, 340) having a voltage source inverter (340) and a voltage source converter (330). The SCR converter (350) regulates power transmitted to the drive circuit from the rotor of the motor so that the ratings of the drive circuit are not exceeded. A shorting contactor (390) is employed in various embodiments to increase the efficiency of the circuit.
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