Electricity: motive power systems – Induction motor systems – Power-factor control
Patent
1997-12-05
1999-11-30
Shoop, Jr., William M.
Electricity: motive power systems
Induction motor systems
Power-factor control
363 56, H02P 124
Patent
active
059948698
ABSTRACT:
A motor system and method providing improved power factor and harmonic control of power supplied to a motor. The system and method employs a power conversion circuit connected to an AC voltage source for supplying power to a power supply link of the motor. The power conversion circuit includes a rectifier circuit and a power factor correction circuit. The rectifier circuit rectifies the AC voltage and has first and second outputs corresponding to upper and lower rails of the power supply link, respectively. The power factor correction circuit is connected directly between the first output of the rectifier circuit and a node of the corresponding upper rail of the power supply link for improving the power factor of the power supplied to the motor.
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Duda Rina I.
General Electric Company
Shoop Jr. William M.
Traynham Wayne O.
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