POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE

Title:

POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE

Document Type and Number:

WIPO Patent Application WO/2011/019701

Kind Code:

A3

Abstract:

A controller includes a voltage determination module, a bus voltage command module, and a power factor correction (PFC) control module. The voltage determination module determines a desired direct current (DC) bus voltage for a DC bus electrically connected between a PFC module and an inverter power module that drives a compressor motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the compressor motor, speed of the compressor motor, output power of the inverter power module, and drive input power. The bus voltage command module determines a commanded bus voltage based on the desired DC bus voltage. The PFC control module controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.

Inventors:

MARCINKIEWICZ JOSEPH G (US)
SKINNER JAMES L (US)
GREEN CHARLES E (US)
POWERS JOHN P (US)

Application Number:

PCT/US2010/044993

Publication Date:

June 23, 2011

Filing Date:

August 10, 2010

Export Citation:

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Assignee:

EMERSON CLIMATE TECHNOLOGIES (US)
MARCINKIEWICZ JOSEPH G (US)
SKINNER JAMES L (US)
GREEN CHARLES E (US)
POWERS JOHN P (US)

International Classes:

H02M1/42; H02M3/155

Foreign References:

US20060130504A1	2006-06-22
US4662185A	1987-05-05
US6109048A	2000-08-29
US5605053A	1997-02-25
US4364237A	1982-12-21

Other References: