Power conversion circuit for a motor

Details Power conversion circuit for a motor Power conversion circuit for a motor

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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