Abstract

For low-power AC-DC converters, power factor correction (PFC) can be accomplished simply with certain converters operating in discontinuous conduction mode (DCM). At higher power levels, DCM results in higher losses, so most PFC converters use current feedback to actively track the correct current waveshape. This work presents a way to provide PFC control without the current sensor, by replacing the sensor with a Kalman filter, which is essentially a stochastic observer. Experimental results verify its high power factor and low total harmonic distortion (THD).

Meeting Name

23rd Annual IEEE Applied Power Electronics Conference and Exposition, 2008. APEC 2008

Department(s)

Electrical and Computer Engineering

Sponsor(s)

Grainger CEME
National Science Foundation (U.S.)

Keywords and Phrases

AC-DC Power Converters; Kalman Filters; Digital Control; Electric Current Control; Harmonic Distortion; Observers; Power Conversion Harmonics; Power Factor Correction; Power Harmonic Filters

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2008 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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